If you’ve undertaken any cryptocurrency trading this financial year in the UK, you'll need to consider the tax implications.

Any cryptocurrency transaction, including buying, selling, trading, mining, staking, giving, or receiving, must be reported on your tax return. This requirement applies regardless of where the transaction occurred — be it in the UK, Australia, the United States, or even a remote tax haven in the Pacific.

Essentially, if you’ve made money with crypto, the tax man wants to know about it. However, calculating your cryptocurrency tax can be complex, with various factors to consider when preparing your tax return.

There is a really comprehensive article here if you want to speed up your knowledge before you choose a crypto tax calculator. And this article also details the discounts on offer for tax calculator software.

Does the HMRC track your crypto trades?

Yes, His Majesty’s Revenue & Customs (HMRC) closely monitors cryptocurrency transactions.

It’s crucial to keep accurate records of these transactions.

Free crypto tax calculator / Free crypto tax software

Are there free crypto tax calculators? Yes, there are. However these tend to be limited to the first few transactions and you still have to subscribe if you want to continue.

Crypto tax compliance involves complex calculations, including tracking cost basis, capital gains/losses, and handling diverse transaction types (e.g., trades, staking, airdrops) across multiple wallets and exchanges.

Paid services provide comprehensive tools to accurately aggregate, analyse, and report this data, ensuring compliance with tax regulations.

So you may find that you may require a paid service to have a solution comprehensive enough to cover your needs.

Automate your tax return

Crypto accounting apps like Koinly, Koinx, CoinTracker, Summ and Coinpanda can help. These programs track all your transactions in real-time, regardless of where and when they occur.

At the end of the financial year, April 5th, they compile your transaction history into a document that details your capital gains and losses in GBP. This makes it convenient to assess your tax obligations and monitor your overall portfolio performance.

CoinJar now offers full, protected transaction integration with multiple crypto tax calculators. This means any cryptocurrency transaction conducted on CoinJar will be directly transferred to your chosen crypto tax software account helping you to get ahead of the game at tax time.

Crypto Tax Software used by CoinJar users

Some of these crypto tax calculators give discounts to CoinJar which we pass on to you. So check back with the main tax article page often.

Exclusive CoinJar customer benefits

Summ

Summ (formerly Crypto Tax Calculator) offers support for over 3,500 exchanges, wallets and blockchains. Summ was built to handle everything from exchange trading to complex on-chain activity, including DeFi and NFTs.

As a CoinJar customer, you’ll get 30% off all Summ plans. Use the code COINJ30 at check out or sign up via this link, and your discount will be automatically applied.

Terms: New Summ users, first year only. Expires 31 October 2026.

Koinly

Koinly is a crypto tax software used by UK investors to simplify their end-of-financial-year reporting. It connects with hundreds of exchanges and wallets to automatically import transaction history and calculate capital gains, income, and other taxable events.

As a CoinJar customer, you can use the campaign code: COINJARUK26 to get 25% off for new and existing CoinJar customers in the UK. Valid: 15 June - 31 July 2026.

CoinLedger

CoinLedger is crypto tax software designed to simplify the tax filing process and help users maximise their refund. With support for DeFi, NFTs, and on-chain activity, the platform is purpose-built to handle the full complexity of modern crypto activity under UK tax rules. You can use the code COINJAR for 25% off, by clicking here. No expiry!

KoinX

KoinX is a crypto tax platform designed to help UK investors manage their tax obligations with minimal hassle. It connects with major exchanges and wallets to automatically import transactions and calculate capital gains, income, and other taxable events in line with HRMC guidelines.

As a CoinJar customer, use the campaign code: COINJAR50 to get 50% off any KoinX plan. Download the KoinX app to access, available for both new and existing users. Valid until October 31, 2026.

Notice: Customer feedback indicates Blockpit / Accointing and Crypto.com Tax currently generate inaccurate reports for CoinJar accounts.

Disclaimer

Links to third-party websites will open new browser windows. Except where noted, CoinJar has no affiliation to these third party websites and accepts no responsibility for the content on third-party websites.

Important: CoinJar UK Limited does not warrant the adequacy, accuracy or completeness of any tax calculation by any app, including those mentioned above and CoinJar expressly disclaims any liability for errors or omissions therein. Users are personally responsible for evaluating the accuracy, completeness or usefulness of any information or other content available on these sites.

Crypto tax apps are not CoinJar services. If you use these services, you’ll be subject to the applicable terms and conditions of use for these products, including a separate privacy policy, which may differ from CoinJar’s privacy policy. You should read and understand all applicable terms before using them.