A UK crypto tax accountant reconciles your exchange, wallet and DeFi history into HMRC section 104 pools, prices every disposal in sterling and produces the capital gains and income figures your Self Assessment needs. CountDeFi has done that work for UK investors since 2017, and specialises in complex portfolios and broken records.
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// WE'RE COUNTDEFI
Want peace of mind at tax time? CountDeFi has solved tax headaches for UK crypto investors since 2017. We're not just accountants, we're data scientists who will reconstruct your full transaction history to deliver accurate, HMRC-compliant tax reports.
If your crypto portfolio is complex, or you're missing transaction history, CountDeFi can help with affordable plans. We operate 100% online and in your timezone.
// the opportunity
Good crypto accounting can uncover losses, reliefs and cost basis that reduce what you owe. We calculate your full position so you claim what you’re entitled to and don’t overpay HMRC.
Sell crypto and buy it back within 30 days? HMRC’s matching rules can change your cost basis and tax bill. We apply the same-day, 30-day and Section 104 rules correctly.
tComplex crypto can make hourly accountant fees unpredictable. CountDeFi prices upfront by transaction volume and complexity, with reconciliation, software and your UK crypto tax report included.
// who we are
Founder
Clients Worldwide
Crypto Tax Reports Completed
Crypto Transactions Optimized
// OUR DIFFERENCE
Crypto tax in the UK is complicated. If you’re trying to do it yourself, you’ve likely run into errors, blockers, or bad calculations that leave you with inaccurate tax reports. The risks are too high to rely on software and traditional accountants alone. When it’s time for forensic-level crypto accounting, CountDeFi will see you through with HMRC-compliant reports you can rely on. We're online, in your timezone, and ready to serve.
Staking rewards are taxable as income, but the complexity lies in how and when they are received.Rewards may accrue continuously, unlock periodically, or require manual claiming, and each model affects timing, valuation, and classification. Many DeFi tax calculations miss this entirely or apply inconsistent pricing. CountDeFi tracks staking across native protocols, liquid staking derivatives, and DeFi-integrated strategies, recording each reward at fair market value at the point of control. The result is complete DeFi tax reporting that holds up under IRS scrutiny.
Yield farming generates one of the noisiest datasets in DeFi. Rewards are emitted across multiple tokens, often auto-compounded, and rarely tracked cleanly. Most DeFi reporting captures only what is easy to see. The rest is lost. CountDeFi tracks every reward distribution at the protocol level, timestamps each income event, and applies correct valuation at receipt. Your DeFi taxes then reflect the full income generated across farms, including rewards that never hit an exchange or a tax form.
Early-stage token exposure rarely comes with clean data. Allocations vest, unlock in tranches, and are often supplemented by airdrops or secondary purchases. Without reconstruction, DeFi tax calculations quickly break down. CountDeFi rebuilds the full acquisition history of each position, assigning cost basis across every tranche and tracking each distribution event. The end result is DeFi reporting that makes sense of fragmented token launch data and applies the correct treatment from day one through to disposal.
Governance tokens do not arrive neatly packaged with documentation. They are distributed via airdrops, incentives, and retroactive rewards, often without clear valuation. Yet they are still taxable. CountDeFi traces every distribution back to its source, establishes fair market value at receipt, and records it correctly as income. This ensures your DeFi taxes include governance participation that most accountants miss entirely.
Providing liquidity is rarely just a deposit. In most cases, you are swapping tokens into LP tokens, earning fees, and exiting into a completely different asset mix. That creates a chain of taxable events that many DeFi tax calculations flatten or ignore. CountDeFi traces every stage of the position from entry, reward accrual, rebalancing, and exit, including impermanent loss and fee income. The result is DeFi reporting that reflects the actual economic outcome of your liquidity activity, not a simplified version that misses gains and misstates losses.
Cross-Chain Bridge TransactionsNot all bridges are created equal. Some are transfers. Others are disposals in disguise. Misclassifying them is one of the most common errors in DeFi taxes. CountDeFi analyses how each bridge actually works, whether assets are locked, burned, or routed through liquidity, and classifies the transaction accordingly. This ensures your DeFi reporting preserves cost basis where appropriate and avoids triggering tax on movements that were never true disposals.
Wrapping is often treated as a non-event. In practice, it can be a disposal depending on how the protocol is structured. This is where DeFi tax calculations frequently go wrong. CountDeFi evaluates each conversion, whether it is a simple wrapper, a synthetic mint, or a derivative exposure, and determines the correct tax treatment. We ensure cost basis is either preserved or reset appropriately, so your DeFi reporting aligns with the actual change in economic position.
NFTs are increasingly used within DeFi, as collateral, fractionalised assets, and components of more complex on-chain strategies. That creates a mix of capital and income events most DeFi tax calculations miss. CountDeFi tracks NFT activity across lending protocols, AMM-based trading, and royalty-generating contracts, identifying when an interaction is a simple disposal and when it forms part of a broader DeFi position. The result is DeFi reporting that captures both asset movements and income, so your DeFi taxes reflect how NFTs are actually used, not just how they are trade.
// CRYPTO NATIVES
Here are just some of the tricky UK crypto questions we’ll help you answer when we work together on your next crypto tax return.
Learn more about HRMC rules in our updated UK Crypto Tax Guide.
// YOUR DATA JOURNEY
Crypto accounting is primarily a data problem. Our proprietary 7-step system transforms raw transaction data into precise, crypto tax reports, Accurate, compliant, and optimized for savings.
// Trustpilot testimonials
Caleb
They worked with me on all of my transactions at a better price than most other companies.
5 Star Review | April 13, 2026
Tim S
CountDefi did a great job at reconciliation and I recommended them for their dedication to detail. The IRS schedule forms they provided in their reports were pivotal to filing my taxes smoothly.
5 Star Review | Jun 03, 2026
Alex W
Given the complex nature of cryptocurrency transactions, calculating taxes is extremely difficult. This has been a major problem for me in previous years and CountDeFI is a life changing solution for me! The entire process is extremely surprisingly smooth.
5 Star Review | Jan 29, 2025
The UK tax year runs from 6 April to 5 April. For example, crypto disposals and income between 6 April 2025 and 5 April 2026 fall into the 2025–26 tax year. If you're considering disposals or realising losses for a particular tax year, they need to happen before the relevant 5 April year-end.
If you need to file for the 2025–26 tax year and have not previously filed, or were previously registered but did not need to file for 2024–25, you generally need to tell HMRC by 5 October 2026. This is separate from the 31 January 2027 online filing and payment deadline.
For the tax year ending 5 April 2026, the deadline for an online Self Assessment return is 31 January 2027. Paper returns are generally due by 31 October 2026. Any Self Assessment tax you owe is also normally due by 31 January 2027.
There isn't a general extension simply because your crypto records are complicated. The normal online deadline for the 2025–26 return is 31 January 2027. If you file late, HMRC can impose an initial £100 penalty, with further penalties as the delay continues. If exceptional circumstances prevented you from filing on time, you may be able to appeal a penalty on the basis of a reasonable excuse, but this is assessed on the circumstances and isn't an automatic extension.
HMRC introduced a dedicated cryptoasset section in Self Assessment returns from the 2024–25 tax year. Crypto disposals that give rise to capital gains can be reported through Self Assessment, while crypto received as income may need to be reported differently depending on the activity. CountDeFi prepares the reconciled calculations and supporting reports needed to complete your UK tax return.
Yes. If you've previously failed to report taxable crypto gains or income, you can make a voluntary disclosure to HMRC rather than waiting for HMRC to contact you. HMRC's Digital Disclosure Service can be used for certain unpaid taxes, and HMRC also provides specific guidance for disclosing unpaid tax on cryptoassets. You will generally need to calculate the tax owed, explain the years affected and consider any interest and penalties due. Coming forward voluntarily can also affect how HMRC calculates penalties. Before making a disclosure, it's important to reconstruct the relevant crypto transaction history so the figures you submit can be supported. More in our guide.
