Crypto taxes for UK companies can become considerably more complicated once a business moves beyond simply buying and holding Bitcoin or Ethereum.
A company might invest surplus cash in cryptoassets, accept USDC from customers, pay suppliers in crypto, stake part of its treasury or use DeFi. A crypto business might go further by issuing its own token, granting token rights to investors or allocating tokens to founders and employees.
Although all of these transactions involve cryptoassets, they do not necessarily have the same accounting or tax treatment.
There is no single set of UK tax rules covering everything a company might do with crypto. Existing Corporation Tax, accounting, VAT and employment tax rules apply according to the particular transaction. HMRC also takes a fact-specific approach. Much of its published business guidance focuses on exchange tokens such as Bitcoin, despite the much wider range of cryptoassets now in use.
The blockchain tells us what moved, but not necessarily what the transaction meant. A transfer of ETH could be a sale, an internal wallet movement, a supplier payment, collateral or part of a DeFi arrangement. Each can produce a different accounting or tax result.
Crypto taxes for UK companies: at a glance
Start with why the company holds the crypto:
Crypto held as an investment may be treated differently from crypto received from customers, used within the company's trade or created by the company itself.
Do not assume the blockchain determines the tax treatment:
A token transfer could be a sale, an internal wallet movement, a supplier payment, collateral or part of a DeFi arrangement. What the transaction actually represents matters.
Accounting and Corporation Tax need to be considered together:
The accounting treatment is an important part of the analysis, but an accounting gain or loss does not necessarily produce the same Corporation Tax result at the same time.
Look beyond straightforward buying and selling:
Stablecoins, staking, DeFi, company-created tokens and founder or employee token allocations can raise additional accounting, Corporation Tax, VAT and employment tax issues.
Why does the company hold crypto?
One of the first things to determine is the company's relationship with the crypto it owns.
Consider three UK companies that each have £1 million of crypto associated with their business.
The first is a profitable software consultancy whose directors have invested some of its accumulated cash in Bitcoin and Ethereum. The second actively buys and sells digital assets as part of its business. The third develops blockchain technology, receives tokens through its commercial activities and uses crypto operationally within the business.
Viewing their wallet balances in isolation, all three companies might appear to be doing broadly the same thing. For accounting and tax purposes, however, they may not be.
HMRC recognises that company crypto transactions can fall within different Corporation Tax regimes. Trading activity can fall within the normal rules for calculating trading profits. In other circumstances, the intangible fixed asset rules may apply. If neither treatment applies, a disposal of crypto held as an investment may instead fall within the Corporation Tax rules for chargeable gains.
The starting point is therefore not simply which tokens the company owns. We also need to understand why the company acquired them and how they relate to its activities.
When does company crypto activity amount to trading?
Take Samaritan Digital Ltd, a technology company that develops software and provides consultancy services.
The company has accumulated £2 million of cash and its directors decide to invest £400,000 in Bitcoin and £200,000 in Ethereum. During the following year, they make several further purchases and occasionally sell or exchange some of those holdings.
The directors might describe the company as trading crypto, particularly if they monitor the portfolio actively and make regular investment decisions. That description does not, by itself, determine the Corporation Tax treatment.
HMRC says the particular facts determine whether buying and selling exchange tokens amounts to a trade. Relevant factors can include the number and frequency of transactions, the level of organisation, the commercial nature of the activity and the company's wider circumstances.
HMRC's published view is that only in exceptional circumstances would buying and selling exchange tokens, by itself, amount to a financial trade.
For Samaritan, its established business remains software development and consultancy. Investing some of its accumulated profits in Bitcoin and Ethereum does not automatically mean it has started a separate trade in cryptoassets.
Suppose Samaritan's crypto portfolio subsequently falls in value and the company suffers a £300,000 loss. The directors may regard this as a crypto trading loss. However, calling it a trading loss does not establish that Samaritan can offset it against profits from its software business.
The tax treatment depends on the nature of Samaritan's activity and the Corporation Tax rules applying to the assets. If the company holds the crypto as an investment rather than as part of a trade, the loss may receive quite different treatment.
Establishing why the company holds the crypto is therefore an important part of determining how both profits and losses should be taxed.
How does crypto move from the blockchain into the company's accounts?
Calculating crypto transactions for a company involves more than establishing how much it paid for a token and what that token was worth when it was sold.
The company is still required to prepare statutory accounts, and those accounts need to reflect what its crypto transactions actually represent.
Suppose Samaritan reaches its year end with Bitcoin held as a treasury investment, ETH acquired at different times, USDC received from customers and ETH committed to staking. It also holds a liquid staking token, a liquidity pool position and an investment in a project token whose value has fallen substantially.
Specialist crypto software can provide valuable transaction data, valuations and tax calculations, particularly where Samaritan operates across several wallets, exchanges and protocols.
Processing blockchain data, however, is only part of the accounting exercise. The statutory accounts also need to identify the assets, liabilities, income and transactions represented by that data. Crypto software cannot determine all of those questions from the blockchain history alone.
Bitcoin bought with surplus company cash is quite different from USDC received in settlement of a customer invoice. A liquid staking token may represent rights arising from ETH that Samaritan previously owned. A liquidity pool position may involve rights to more than one underlying asset.
If Samaritan later creates its own token, tokens sitting in a company-controlled wallet cannot simply be treated in the same way as Bitcoin it bought from somebody else.
The accounting should therefore reflect the substance of the company's transactions rather than treating everything appearing in a crypto wallet as a single class of asset.
How do changes in value affect the accounting and tax position?
Suppose Samaritan buys Bitcoin for £400,000 and still owns it at its year end, when the holding is worth £610,000.
It would be tempting to look at the £210,000 increase and assume that this represents the company's profit from Bitcoin. For Corporation Tax purposes, however, we need to know more about what has happened to the asset and how it has been accounted for.
The £210,000 increase represents an economic gain, but that does not establish the accounting profit or Corporation Tax result. We first need to understand what has happened to the asset and how Samaritan has accounted for it.
If Samaritan still owns the Bitcoin, the increase remains unrealised. If it sells the holding for £610,000, a disposal has taken place. Samaritan then needs to consider the tax consequences under the Corporation Tax rules that apply to the asset.
Crypto does not need to become cash
Samaritan does not need to convert the Bitcoin into pounds for a disposal to arise. If it exchanges the Bitcoin for Ethereum worth £610,000, it has disposed of one cryptoasset and acquired another. No money has reached its bank account, but a taxable gain can still arise.
Now compare that with Samaritan moving the same Bitcoin from an exchange to a company hardware wallet. Provided the company remains the beneficial owner throughout, changing where the Bitcoin is held does not amount to a disposal.
DeFi can make the analysis more difficult. Samaritan might transfer ETH into a protocol and receive a different token or contractual right in return. We then need to establish whether Samaritan retained beneficial ownership of the original ETH or disposed of it in return for something else.
By the year end, Samaritan's records could therefore contain several different types of transaction. Some assets may simply have risen or fallen in value. Others may have been sold or exchanged. There may also be transfers between the company's own wallets or transactions that replace the original crypto with different rights.
The movement in the overall value of the portfolio cannot, on its own, tell us either the accounting profit or the Corporation Tax result.
Accounting profit and taxable profit are not always the same
Samaritan's accounting treatment forms an important part of its Corporation Tax computation. However, the figures in the accounts do not necessarily determine when a taxable profit or allowable loss arises.
Suppose Samaritan's year-end accounts recognise a reduction in the carrying value of a cryptoasset that the company continues to own. The accounting requirements may justify that treatment. However, if the asset falls within the chargeable gains rules, the accounting loss does not automatically become an allowable capital loss.
The reverse can also occur. Samaritan might exchange Bitcoin for Ethereum and realise a gain for Corporation Tax purposes even though it receives no cash and continues to hold substantially all the value in crypto.
DeFi can add another layer of complexity. A transaction described commercially as staking or lending might involve Samaritan exchanging one asset for another, acquiring a new contractual right or retaining beneficial ownership of the original cryptoasset.
The accounts need to reflect what Samaritan owns after the transaction. Separately, the Corporation Tax analysis must consider whether the transaction triggered a disposal or falls within another tax regime.
The same approach applies to crypto received through the company's trade. If a customer pays Samaritan in ETH, the value of the services forms part of its trading income. Samaritan then owns the ETH as an asset. Any later movement in value requires separate consideration when it sells, exchanges or otherwise disposes of the ETH.
For a company with significant crypto activity, simply adding a 'crypto gains' figure to the accounting profit will not produce a reliable Corporation Tax computation. The company first needs to understand and account for the underlying transactions. It can then apply the Corporation Tax regime relevant to each transaction.
Which Corporation Tax rules apply to company crypto?
There is no specific Corporation Tax legislation for crypto. Instead, we need to determine which of the existing Corporation Tax rules applies to the particular asset or transaction.
If Samaritan's crypto activity forms part of a trade, the company will generally include the relevant receipts and expenses when calculating its trading profits. However, simply buying and selling crypto does not necessarily mean Samaritan carries on a crypto trade.
Other Corporation Tax regimes can take priority. The intangible fixed asset rules may apply in some circumstances. However, HMRC makes clear that accounting for an exchange token as an intangible asset does not, by itself, bring the token within those rules.
HMRC also does not regard ordinary exchange tokens as money or currency. Holding Bitcoin or Ethereum therefore does not, by itself, create a loan relationship.
Where Samaritan holds crypto as an investment and neither trading treatment nor another Corporation Tax regime applies, a disposal will generally fall within the chargeable gains rules.
Where Samaritan holds crypto as an investment and neither trading treatment nor another Corporation Tax regime applies, a disposal will generally fall within the chargeable gains rules.
In practice, we need to establish what Samaritan owns, why it owns it and what has happened to it before deciding which Corporation Tax rules apply. This becomes particularly relevant when the company moves beyond straightforward investment into stablecoins, DeFi, token issuance and contractual rights.
Crypto and the intangible fixed asset rules
A cryptoasset being shown as an intangible asset in Samaritan's accounts does not automatically bring it within the Corporation Tax intangible fixed asset regime.
The asset must satisfy the conditions in Part 8 CTA 2009. HMRC notes that these include a requirement for the company to create or acquire the asset for continuing use. Exchange tokens held simply as investments will not normally meet that requirement.
Suppose Samaritan holds £600,000 of Bitcoin as a treasury investment. How Samaritan presents that Bitcoin in its accounts does not determine its Corporation Tax treatment. If no other tax regime takes priority, a later disposal may instead fall within the chargeable gains rules.
The underlying purpose and use of the asset therefore need to be considered alongside its accounting treatment.
Calculating gains and losses on company crypto
Where the chargeable gains rules apply, the company calculates a gain or loss by comparing the disposal value with the allowable cost of the cryptoassets disposed of.
For commonly traded cryptoassets such as Bitcoin and Ether, however, the company does not normally trace the tokens leaving its wallet back to a particular original purchase.
Instead, tokens of the same type generally enter a section 104 pool, provided their nature allows them to be dealt in without identifying individual units. Each token type has its own pool. The pool records both the quantity held and its combined allowable cost.
A company may therefore have bought Bitcoin at several different prices and subsequently moved those holdings between exchanges, custodians and its own wallets. When it eventually sells part of the holding, the allowable cost will normally come from the tax pool rather than the historic purchase price of the particular Bitcoin transferred.
Company matching rules
Two company matching rules can take priority over the main pool. The company first matches tokens acquired and disposed of on the same day. A separate ten-day rule can then apply before acquisitions enter the section 104 pool.
These rules differ from those applying to individuals, where acquisitions within 30 days after a disposal can be matched with that earlier disposal. Directors familiar with calculating gains on their personal crypto portfolios should therefore not assume that the company's calculation works in the same way.
Crypto disposals and beneficial ownership
A company does not need to sell crypto for £sterling before a disposal can arise.
Exchanging one cryptoasset for another will normally dispose of the asset given up. The same principle applies when a company uses crypto to pay for goods or services. The company needs a sterling value for the transaction so that it can calculate any gain or loss on the crypto disposed of.
Consider Starlight Labs Ltd, which acquired ETH for £80,000. It later uses the ETH, now worth £125,000, to settle an invoice from a software developer.
We need to consider two elements. The £125,000 payment relates to the developer's services. Using the ETH to settle the invoice also disposes of Starlight's crypto.
If the chargeable gains regime applies to the ETH, Starlight must reflect the increase in value in its Corporation Tax calculation. It does not matter that Starlight received no cash.
A crypto-to-crypto exchange works in a similar way. If Starlight exchanges Bitcoin for ETH, it has disposed of Bitcoin and acquired a different asset. Simply reinvesting the value within the company's crypto portfolio does not defer the tax consequences of the Bitcoin disposal.
Moving crypto between wallets is different. If Starlight transfers Bitcoin from an exchange account to a hardware wallet and remains the beneficial owner throughout, HMRC does not treat the movement between the company's own addresses as a disposal.
The position becomes less straightforward where crypto enters a DeFi protocol. Staking, lending or providing liquidity may involve more than moving an asset between wallets. Starlight might retain beneficial ownership of its original crypto, or it might give up that asset in return for a different token or contractual right.
We therefore need to establish what the company owned before and after the transaction rather than simply following the blockchain movement.
Receiving crypto from customers
A company accepting crypto from a customer does not turn the underlying sale into an investment transaction.
If a software company invoices a customer £50,000 for development work and agrees to accept payment in ETH, the £50,000 remains part of the company's trading income. Receiving ETH rather than pounds changes the form of payment, It does not change the commercial nature of the sale.
The company then owns the ETH it has received. What happens to that ETH afterwards requires separate consideration.
Suppose the ETH is worth £50,000 when received but increases to £68,000 before the company exchanges it for sterling. The original £50,000 relates to the company's trading activity. The later £18,000 movement arose while the company owned the ETH. Its tax treatment therefore depends on the Corporation Tax rules applying to that holding.
The same approach is needed where crypto moves in the opposite direction. If a company uses ETH that it already owns to settle a supplier invoice, there are again two elements: the supplier cost and the disposal of the ETH.
A company's crypto records therefore need to do more than calculate token gains and losses. They also need to reconcile crypto receipts and payments with sales, purchases and other transactions in the accounting system.
A receipt of 100,000 USDC could represent trading income, investment funding, a loan, an intercompany transfer or a movement between company wallets. The blockchain records the receipt. The accounting records need to explain what it represents.
Stablecoins and the changing Corporation Tax rules
Stablecoins such as USDC and USDT are increasingly used by businesses to receive payments, pay overseas suppliers and hold working capital without returning funds to conventional currency.
Their relative price stability can make them feel more like money than other cryptoassets. Under the current UK tax rules, however, that does not automatically make them cash for Corporation Tax purposes.
HMRC's existing position is that cryptoassets are neither money or currency. Ordinary exchange tokens therefore do not fall within tax provisions merely because those provisions apply to money. Holding an exchange token does not, by itself, create a loan relationship either.
A business might receive 100,000 USDC from a customer, retain part as working capital and use the remainder to pay overseas developers. Although USDC may remain close to the US dollar, the company still needs to identify each underlying transaction. It must also consider the tax treatment of the stablecoins while it holds them and when it subsequently uses them.
Proposed stablecoin rules from 2027
In July 2026, the Government published draft legislation proposing a new Corporation Tax treatment for certain stablecoins. The proposed rules are intended to apply to companies for accounting periods beginning on or after 1 April 2027, with transitional provisions for eligible stablecoins already held when the new regime takes effect.
Not every token described commercially as a stablecoin will necessarily qualify. Broadly, the proposed definition requires the cryptoasset to maintain a stable value by reference to a particular fiat currency, supported by fiat currency or other assets held for that purpose.
Not every token described commercially as a stablecoin will necessarily qualify. Broadly, the proposed definition requires the cryptoasset to maintain a stable value by reference to a particular fiat currency, supported by fiat currency or other assets held for that purpose.
Companies using stablecoins will therefore need to distinguish between the rules applying now and the proposed treatment of eligible stablecoins from April 2027.
DeFi, beneficial ownership and Corporation Tax
HMRC itself acknowledges that there is no statutory or legal meaning of 'lending' or 'staking' in this context. The tax treatment therefore depends on what happens to the company's cryptoassets and which rights it receives in return.
Has beneficial ownership changed?
One of the first questions is whether the company retains beneficial ownership of the crypto it transfers.
Suppose a company transfers ETH into an arrangement and the recipient can deal freely with that ETH. HMRC considers this a strong indication that beneficial ownership has passed.
The transfer can then amount to a disposal of the original ETH. This can happen even where the company expects to receive an equivalent quantity of ETH later.
The analysis can become more involved where the company receives another asset in return. It might deposit ETH and receive a liquid staking token. Alternatively, it might contribute two cryptoassets to an automated market maker and receive a token representing its liquidity pool interest.
Calling the transaction 'staking' or 'providing liquidity' does not resolve the tax position. The terms need to establish what the company transferred, whether beneficial ownership changed and what asset or contractual right it holds afterwards.
The return generated by the arrangement then requires separate consideration. Rewards described as staking yield, lending interest or liquidity rewards do not necessarily receive a particular tax treatment simply because a protocol uses that terminology.
There is also an important distinction between companies and individuals in the Government's proposed reforms.
In July 2026, the Government published draft legislation covering certain qualifying cryptoasset lending and liquidity pool arrangements. The proposals aim to defer Capital Gains Tax until an economic disposal takes place. However, the draft legislation expressly refers to a 'person other than a company'. Companies should therefore not assume that the proposed treatment will apply to their DeFi transactions from April 2027.
For a company using DeFi, the accounting and Corporation Tax analysis needs to follow the actual arrangement, not simply the terminology used by the protocol. Two transactions described as 'staking' can involve different rights and potentially different tax consequences.
Accounting and tax issues when a company creates its own token
A company creating its own token raises quite different questions from a company buying Bitcoin, ETH or another cryptoasset from somebody else.
Suppose a UK Web3 company creates 100 million tokens for use within its platform. It intends to sell some to investors, allocate others to founders and employees and reserve a further amount for users and commercial partners. The remaining tokens will initially sit in company-controlled wallets.
It would be misleading to take the token's market price and treat the retained supply like an investment portfolio bought from a third party.
Suppose the token later trades at £1 and 40 million tokens remain in a company-controlled wallet. That does not, by itself, mean the company acquired an asset costing £40 million or generated a £40 million profit.
What rights does the token provide?
The analysis starts with the rights attached to the token and what the company has promised in return for issuing it.
A token might provide access to software or services, governance rights, economic participation, redemption rights or a combination of benefits. Those rights can influence both the accounting and tax treatment.
Creating tokens, selling them to investors, allocating them to employees, retaining part of the supply and later buying tokens back are not necessarily different versions of the same transaction.
Consider a company that sells 10 million of its tokens for £5 million before its platform is fully operational. Before deciding how to account for the £5 million and treat it for Corporation Tax, we need to understand what the purchasers acquired. We also need to establish which obligations remain with the company.
Depending on the terms, the token sale might relate to future services, access to a platform or other contractual rights. It may not simply represent the sale of an investment asset.
VAT may also require separate consideration. Receiving crypto or fiat currency in exchange for tokens does not, by itself, determine whether the company has made a supply for VAT purposes. The rights and obligations attached to the token also matter.
Companies should ideally consider these accounting and tax questions while developing the token structure and legal documentation. Once the company issues tokens to investors, customers, founders or employees, it cannot simply rewrite the rights to achieve a more convenient tax result.
HMRC's guidance on cryptoassets for businesses provides the broader framework for applying existing tax rules to business transactions involving cryptoassets, although HMRC's published business guidance remains principally focused on exchange tokens rather than every form of token a Web3 company might create.
Equity funding and token rights
Crypto and Web3 businesses do not always raise finance through conventional equity alone. Investors may subscribe for shares and also receive token rights. Alternatively, a company might enter into agreements that give investors rights to tokens when a network or platform eventually launches.
Where these arrangements form part of the same funding round, the accounting and tax analysis should reflect the rights the investors actually acquire. Looking at each document in isolation can give an incomplete picture.
Suppose a company raises £4 million. Investors subscribe £2 million for ordinary shares, provide another £1 million under agreements giving them rights to future tokens and invest the final £1 million through a token presale.
The share subscription may clearly represent equity, but the token arrangements require further analysis. The company may have received funds while retaining obligations to issue tokens, provide platform access or deliver other rights later.
There may also be a direct relationship between the equity investment and the token rights. An investor might receive token rights because it subscribed for shares, or the amount or timing of the equity investment might determine the number or terms of those tokens.
SEIS and EIS can introduce another consideration. There is no general rule preventing a business involved with cryptoassets or distributed ledger technology from qualifying for the venture capital schemes. However the normal conditions still apply.
Where an investor receives shares alongside token rights or other benefits, the company needs to consider those arrangements when assessing whether the investment meets the relevant requirements.
Future-token agreements can create additional questions if the token launch is delayed, its rights change or the project never reaches the point of issue. The consequences depend on the rights within the agreement.
For founders, leaving the accounting and tax analysis until after the funding round can create unnecessary problems. The investment documents establish the parties' rights and obligations. The accounting and tax treatment then needs to follow those documents.
Founder and employee token allocations
Crypto and Web3 businesses may allocate tokens to founders, directors and employees for a variety of reasons.
A founder might receive tokens as an investor, in connection with intellectual property they created or as remuneration for work performed for the business.
The description given to the allocation does not determine its tax treatment. We first need to establish why the individual received the tokens and the capacity in which they received them.
Where the company provides tokens as a reward for employment, their value can represent employment income. Income Tax and National Insurance can therefore arise.
PAYE may also apply if the tokens are readily convertible assets. This can include circumstances where trading arrangements exist or are likely to come into existence.
Valuation can become particularly difficult where a company issues its own tokens. Founder or employee tokens may be subject to vesting or transfer restrictions, while the market for a newly launched token may be relatively thin.
An exchange price therefore needs to be considered in the context of the rights attached to the particular tokens and the market that existed at the relevant time.
Companies should consider these issues before allocating the tokens. They should be able to explain why the individual received them, the rights and restrictions attached to them and how they arrived at the valuation. They should also consider whether PAYE or National Insurance obligations arise.
We've examine these rules in considerably more detail in our previous post on the tax treatment of cryptocurrency payments to employees.
Valuing company cryptoassets
For established cryptoassets with active markets, establishing a sterling value will often be relatively straightforward.
Valuation becomes harder when a company holds newly issued or thinly traded tokens, restricted tokens, liquidity pool positions or assets without a readily accessible market.
A crypto exchange price may provide useful evidence, but it does not necessarily settle the valuation. A token might trade at £1 while relatively few tokens actually change hands. Applying that price to several million restricted or illiquid tokens may therefore require further analysis.
The appropriate approach will also depend on why the valuation is required. The company may need a value when it receives crypto from a customer, allocates tokens to an employee, disposes of an asset or prepares its year-end accounts.
Where a sterling value is required, the company should retain evidence supporting the figure used, including the pricing source and any relevant information about liquidity, restrictions or the rights attached to the asset. HMRC's guidance on valuing cryptoassets provides further guidance on establishing sterling values for tax purposes.
VAT and company crypto transactions
Accepting crypto as payment does not, by itself, change the VAT treatment of a sale.
Where a company supplies taxable goods or services for crypto, it still values the transaction in sterling and applies the normal VAT rules.
For a crypto business, the more difficult question is often what the company is actually supplying.
It might provide consultancy or software services, charge platform or transaction fees, sell access to digital services or issue tokens carrying future rights. Those transactions do not automatically receive the same VAT treatment merely because they involve cryptoassets.
The VAT analysis starts with the underlying supply, the customer and the place of supply. If the company issues its own token, the token's rights and the company's obligations can also affect the VAT treatment.
Providing services involving cryptoassets can raise different questions again. HMRC considers that exchanging Bitcoin and similar exchange tokens for legal tender can fall within the financial-services VAT exemption. Certain intermediary services connected with those exchanges can also qualify.
A company should therefore avoid treating VAT as another calculation generated automatically from its crypto transaction history. The blockchain may show that tokens changed hands. The VAT position depends on the commercial transaction that caused them to move.
HMRC's guidance on VAT and cryptoassets provides further guidance, although HMRC's published business guidance is principally concerned with exchange tokens.
International structures and overseas crypto activities
A UK crypto business can develop an international footprint quite quickly. Developers may work overseas and investors may live in several jurisdictions. A project might also establish an overseas company or foundation to issue tokens or operate part of the business.
The existence of an overseas entity does not, however, determine where the underlying profits, activities or assets should be taxed.
Where is the activity actually taking place?
Consider a UK company whose founders and development team create a protocol in the UK. The project later establishes an overseas company to issue its token.
The tax analysis cannot begin and end with the overseas incorporation of the token issuer. We may also need to establish who developed and owns the intellectual property, where the business makes important decisions and what each entity actually does. Another relevant question is where the group creates value.
Transactions between the UK company and overseas connected entities may also require consideration on arm's-length terms. These could include development services, intellectual property licences, management services or transfers of assets and rights connected with the crypto project.
Moving intellectual property or other valuable rights overseas can require particular care. If the UK company has already created significant value, transferring that value to another group entity is not merely an administrative restructuring. The transfer can have UK tax consequences.
Company residence and permanent establishment issues can arise in the opposite direction. An overseas company may have incorporated outside the UK. However, its UK activities, management arrangements and the authority exercised by people working here can still affect its UK tax position.
For crypto businesses, the legal structure therefore needs to reflect where the commercial activity actually takes place. An overseas token issuer can have legitimate commercial or regulatory purposes. However, creating that entity does not retrospectively move development work, intellectual property or management activity that has already taken place in the UK.
Crypto losses, theft and worthless assets
A fall in the value of a company's cryptoassets does not necessarily create an allowable Corporation Tax loss
Where the chargeable gains regime applies, an accounting write-down does not, by itself, mean that the company has realised a capital loss.
However, a negligible value claim may allow the company to recognise a loss where an asset has become effectively worthless, provided the relevant conditions are satisfied.
Lost, stolen and fraudulent crypto
Lost or stolen crypto requires separate consideration. Losing access to a wallet does not automatically constitute a disposal because the company may still own the cryptoasset, even though it can no longer access it. Theft does not necessarily amount to a disposal either
Fraud can produce a different result again. Suppose a company pays for a cryptoasset that never existed, or it never acquired the asset it believed it was purchasing. There may then be no cryptoasset on which the company can simply claim a capital loss.
The company therefore needs to establish what actually happened before deciding whether Corporation Tax relief is available.
Crypto records, wallets and financial controls
A complete blockchain history is not the same as a complete set of accounting records.
The blockchain can show crypto moving between addresses. It may not explain why the transaction occurred, who beneficially owned the assets or how the company should record it in its accounts.
This becomes particularly important where a business operates several wallets, uses exchanges and DeFi protocols, or allows directors and employees to initiate transactions.
The company should also keep its crypto clearly separate from assets held personally by founders or directors.
Connecting wallet activity with the accounts
The accounting records need to connect wallet activity with the underlying commercial transactions.
A receipt of 100,000 USDC could represent customer income, investment funding, a loan, an intercompany transaction or simply a transfer between the company's wallets. The blockchain entry alone cannot tell us which applies.
Companies with significant crypto activity should identify the wallets and accounts belonging to the business. They should also record who controls them and what each material transaction represents.
Supporting evidence might include invoices, contracts, exchange statements, board decisions and documentation for staking, lending or other DeFi arrangements.
Good records make it much easier to reconcile the company's crypto positions with its statutory accounts and Corporation Tax return. This becomes particularly valuable where activity spans several platforms or protocols.
Reconciling crypto activity with the accounts and Corporation Tax
By the end of an accounting period, a company may hold crypto as an investment. It may also have received stablecoins from customers, paid suppliers in crypto, exchanged tokens and participated in staking or other DeFi arrangements.
Specialist crypto software can help process that activity and calculate transactions, valuations and gains or losses.
However, the company still needs to reconcile those reports with its accounting records. It also needs to understand the commercial transactions behind the blockchain activity.
A receipt into a wallet might represent trading income, investment funding, a loan or an internal transfer. Similarly, a payment might represent a supplier cost, the acquisition of another asset or entry into a DeFi arrangement.
Crypto activity should therefore form part of the company's normal accounting process rather than sit outside it as a separate calculation.
Wallets and exchange accounts should reconcile with the bookkeeping. The statutory accounts should appropriately reflect the company's crypto assets and liabilities. The Corporation Tax computation should then follow the transactions and tax treatments identified through that process.
In our experience of working with company crypto records, the blockchain is usually very good at showing what moved. The more difficult task is establishing why it moved and what that transaction represented for the business.
Crypto taxes for UK companies: what business owners should know
The same cryptoasset can have different tax treatments
The tax treatment depends on why the company holds or uses the crypto and what the underlying transaction represents. Bitcoin held as a treasury investment is different from USDC received from customers or a token created by the company itself.
The accounting classification does not settle the Corporation Tax position
Recording crypto as an intangible asset does not automatically bring it within the Corporation Tax intangible fixed asset regime. The relevant tax rules still need to be considered separately.
A taxable disposal does not require a cash sale
Exchanging one token for another, using crypto to pay a supplier and some DeFi transactions can potentially create a disposal even though no sterling reaches the company's bank account.
Stablecoins and DeFi do not necessarily follow the same rules as other crypto activity
Their treatment depends on the particular transaction and rights involved. Companies also need to distinguish the current rules from the changes proposed from 2027, some of which apply differently to companies.
Creating a token raises wider tax and accounting issues
Token sales, investor rights and allocations to founders or employees can bring accounting, Corporation Tax, VAT and employment taxes into the same arrangement.
Crypto activity must ultimately reconcile with the company account
Blockchain records and specialist crypto software provide important transaction data, but the company's records still need to explain what those transactions represented and how they flow through the statutory accounts and Corporation Tax return.
Getting company crypto tax and accounting right
Crypto taxes for UK companies become more difficult as soon as crypto moves beyond a straightforward investment. Customer payments, stablecoins, DeFi, token funding and founder or employee allocations can each bring different accounting and tax rules into play.
The common thread throughout this guide is that the tax treatment cannot usually be determined from the blockchain transaction alone.
We need to understand what the company was doing and which rights or assets it held before and after the transaction. We can then determine how the company should reflect that activity in its accounts.
In our experience, problems often arise when a company prepares its crypto calculations separately from its underlying accounting records. Bringing the two together helps identify inconsistencies before they reach the statutory accounts and Company Tax Return.
Need help with crypto in your company?
If your company holds cryptoassets, accepts crypto from customers, uses stablecoins or DeFi, or is planning a token issue or funding round involving token rights, we can help you work through the UK accounting and tax implications.
The Friendly Accountants has advised on UK crypto taxation since the early development of the sector. We combine wider company tax and accounting experience with practical knowledge of cryptoassets and Web3.
You can explore our other Crypto tax guides or, if you would like to discuss how we could help your business, complete our Business Questionnaire and a member of our team will be in touch.