Crypto Accountant UK - Expert Crypto Tax & Accounting Advice

  • Specialist crypto accounting and tax support for UK investors, traders and digital asset businesses
  • Help with self assessment, capital gains, staking, mining, DeFi, NFTs and company crypto accounts
  • HMRC scrutiny of crypto activity is increasing, so accurate crypto records and reporting matter more than ever

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UK crypto tax accountant

Crypto tax can become difficult when activity is spread across multiple wallets, exchanges, staking platforms, DeFi activity or company accounts. Accurate reporting depends on clear transaction records, the correct UK tax treatment and a position that can be explained if HMRC asks questions.

MMBA crypto accountant provides specialist tax and accounting support for individuals, traders and businesses across the UK. Whether you need help with self assessment, capital gains, staking or mining income, company crypto accounts, undeclared gains or audit support, our team can review your position and help you report with confidence.

HMRC scrutiny of crypto activity is increasing, with stronger reporting and record-keeping requirements for investors, traders and digital asset businesses. A crypto accountant is no longer only useful at the point of filing. The right support helps you identify taxable activity, correct historic gaps, maintain proper records and prepare figures that are ready for HMRC review.

MMBA Cryptocurrency Accountants

MMBA supports the tax, accounting and reporting side of cryptoasset activity for individuals, traders and businesses. We help with HMRC reporting, transaction reviews, company holdings, corporate tax support, cloud accounting services and audit-readiness, with specialist input led by Waqqas Memon.

MMBA does not provide investment advice. Our role is to advise on the tax, accounting, reporting and audit-readiness side of cryptoasset activity, including FCA-focused accounting and compliance support for digital asset businesses where relevant.

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How MMBA’s Cryptocurrency Accountants Can Help

Crypto activity can create different tax and accounting issues depending on how assets are acquired, held, transferred, sold or received. MMBA provides practical support across the main areas where individuals, traders and businesses need specialist crypto accounting advice.

Crypto Self Assessment and HMRC Reporting

We prepare and review crypto tax figures for Self assessment, including gains, losses, income events and supporting disclosures. We also help clients organise the records HMRC expects, especially where activity spans several wallets, exchanges or tax years.

Crypto Tax Advice and Review

We advise on the UK tax treatment of crypto disposals, staking, DeFi, NFTs and company-held assets. The focus is practical: what is taxable, what records are missing, and what should be reported now.

Wallet and Exchange Reconciliation

We review wallet, exchange and platform data to build a clear transaction history for tax and accounting purposes. That matters because exchange exports can help, but HMRC says they are not tax calculations and do not track pooled costs.

Company Crypto Accounts

We support businesses that hold or accept cryptoassets with bookkeeping, year-end accounts, financial statement disclosures and related corporation tax work. This is particularly useful where crypto activity sits alongside wider finance, treasury or digital asset operations.

Crypto Audit and Statutory Audit Support

Where cryptoassets affect company accounts, controls or reporting, we help prepare audit evidence, reconciliations and disclosures. We can also support a statutory audit where digital asset balances or transactions need specialist input.

Crypto Tax Planning and Accounting Advice

We do not advise clients what to buy or sell. We advise on the tax and accounting implications of disposals, losses, income events, record-keeping and reporting so that decisions are documented and HMRC-ready.

Book a call with a Crypto Accountant UK

MMBA team offers specialised crypto accounting services in the UK. Please get in touch with our cryptocurrency tax specialist for easy, affordable, and excellent crypto accounting services.

Meet Our Crypto Audit Expert - Waqqas Memon, BSc, FCCA

At MMBA Accountants, when it comes to cryptocurrency and digital asset taxation, our Director Waqqas Memon leads the way. He holds a BSc degree and FCCA qualification, and brings with him nine years of post-qualification experience, including seven years at top 10 accountancy firms.

Since joining MMBA in 2017, Waqqas has worked closely with crypto investors and traders, helping them navigate the often complex and evolving tax landscape around digital assets, NFTs, and blockchain-based income.

MMBA serves two main client segments:

  • Crypto investors and traders, who benefit from Waqqas’s deep industry knowledge and personalised tax strategies
  • Corporate clients, whom we assist with audit, financial reporting, and audit readiness. Our corporate portfolio includes well-known names such as Coin Bureau and Wirex.

Waqqas is also regularly engaged in consultancy projects focused on improving clients’ accounting systems, helping them streamline operations and ensure long-term compliance.

If you’re looking for reliable, forward-thinking advice on crypto taxation or digital asset accounting, Waqqas Memon brings clarity, strategy, and confidence to your financial journey.

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Crypto Case Study: WIREX LIMITED

We handled the audit and corporate tax for Wirex, an FCA-regulated fintech in digital payments and crypto, and delivered a clean audit opinion ready for FCA and shareholder reporting.

Crypto Tax Reporting Is Changing in the UK

Crypto tax reporting in the UK has become more formal over time. HMRC now expects clearer records, accurate sterling values, correct treatment of gains and income, and cryptoasset reporting through self assessment from the 2024/25 tax year onwards.

CARF adds another layer of visibility. The first reporting period covers 1 January 2026 to 31 December 2026, with first reports due between 1 January 2027 and 31 May 2027. For cryptoasset businesses, the FCA’s new regime is expected to come into force on 25 October 2027, increasing the need for stronger records, controls and reporting.

MMBA helps clients stay compliant by reviewing wallet and exchange records, calculating gains and income, supporting disclosures and preparing figures that can be used for HMRC reporting, business accounts or audit work.

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Why Choose MMBA as Your Crypto Accountant

Crypto tax is specialist work. The difficulty is not only knowing the rules, but turning wallet, exchange and platform data into figures that can be reported confidently.

MMBA combines crypto tax knowledge with wider accounting, corporate tax support, cloud accounting services and statutory audit capability. As HMRC reporting becomes more data-led and the FCA regime develops for in-scope crypto firms, clients need accurate records, clear reconciliations and advice that stays within tax and accounting scope.

Understanding Cryptocurrency Taxation

Crypto tax in the UK depends on what you do with the asset, how you received it and what records you hold. A sale, token swap, mining reward, staking return or company crypto transaction may each need different treatment. MMBA helps clients understand the position, organise the records and report correctly.

What is Cryptocurrency

HMRC refers to these assets as cryptoassets. They include exchange tokens such as Bitcoin and Ethereum, and may also include other tokens used for investment, access rights or business purposes. For tax and accounting purposes, the key issue is not the label; it is how the asset was acquired, held, received or disposed of.

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How is Cryptocurrency Taxed?

In the UK, cryptoassets may create capital gains tax or income tax depending on the activity. A tax point can arise when tokens are sold, exchanged, used to buy goods or services, or given away. Income tax may apply where cryptoassets are received through mining, staking, lending, employment or some DeFi activity.

What is Capital Gains on Cryptocurrency?

Capital gains tax can apply when you dispose of cryptoassets and make a gain. A disposal can include selling for cash, swapping into another token, using crypto for purchases or gifting it where no exemption applies. MMBA reviews transaction histories, fees and valuations so gains and losses are calculated on UK rules rather than exchange summaries alone.

How to Calculate Capital Gains Tax on Crypto?

Calculating Capital Gains Tax on crypto requires more than checking the profit shown on an exchange account. UK crypto tax calculations usually involve disposal values, allowable costs, transaction fees, pooled costs and accurate sterling values at the time of each disposal.

A disposal can include selling crypto for cash, exchanging one cryptoasset for another, using crypto to pay for goods or services, or gifting crypto where no exemption applies. Each disposal should be reviewed carefully and supported by clear records.

Good crypto reporting depends on good records. HMRC expects taxpayers to keep details such as token type, transaction dates, sterling values, number of units, cumulative holdings, bank statements and wallet addresses where relevant. Exchange reports can help, but they are not always complete tax calculations.

HMRC also matches your disposals to your acquisitions in a set order. The same-day rule comes first, then the 30-day rule (bed and breakfast), which matches a disposal against any repurchase of the same token within 30 days rather than your main pool. Anything left goes into the Section 104 pool, the running average cost of your remaining tokens. Getting this order wrong is one of the most common reasons crypto CGT figures come out wrong.

What About Undeclared Gains on Crypto Assets?

If crypto gains or income were not reported in earlier years, it is usually better to review the position before HMRC opens an enquiry. HMRC provides a disclosure route for unpaid cryptoasset tax. MMBA can review historic wallets, exchange data and missing records, then prepare the figures needed for disclosure or correction.

Income Tax on Cryptocurrency

Income tax may apply where cryptoassets are received as income rather than simply bought and later disposed of. This can include mining income, staking rewards, employment-related tokens, referral rewards, lending returns or certain DeFi arrangements. The tax treatment depends on the facts, including how the crypto was received, whether the activity is personal or business-related, and whether the same asset is later sold or exchanged.

Tax Rates and Reporting Income

Crypto income should be reported correctly through self assessment or business accounts, depending on the circumstances. The tax due will depend on your wider income position, tax bands and whether the activity is personal or business-related.

MMBA can review crypto income records, calculate reportable amounts and prepare the figures needed for filing. This is especially useful where income comes from staking, mining, DeFi, employment-related tokens or company-held cryptoassets.

Tax on Crypto Asset Mining

Mining can create tax when tokens are received and again when reward tokens are later sold or exchanged. The outcome depends on whether the activity is casual, organised or part of a business.

MMBA can review mining records, identify the right tax treatment and support both personal and company reporting.

Cryptocurrency Tax Obligations

Filing a Self Assessment Tax Return

If you need to report crypto through self assessment, the figures should be prepared in pound sterling and entered in HMRC’s cryptoasset section, available on returns for the 2024 to 2025 tax year onwards. Good compliance also depends on keeping transaction, bank and wallet records that support the figures reported.

Cryptocurrency Tax Planning and Optimisation

Crypto tax planning should focus on compliance, timing, losses, allowable costs, record quality and the correct treatment of income or disposals. MMBA does not provide investment advice. We advise on the tax and accounting implications of cryptoasset activity and, where useful, support clients with cloud accounting services and related corporate tax support.

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MMBA’s Services for Cryptocurrency Taxation

MMBA provides practical crypto tax and accounting support for individuals, traders and businesses across the UK. Our team can assist with self assessment tax returns, capital gains tax calculations, income tax treatment for staking, mining, DeFi and rewards, undeclared crypto gains, HMRC disclosure support, wallet and exchange reconciliation, company crypto accounts and audit-ready records.

Our role is to help you understand the tax and accounting position, prepare accurate figures and maintain records that can support HMRC reporting, business accounts or audit work.

Why Do I need to Pay Tax on Cryptocurrency in UK?

Cryptoassets can create taxable gains or income in the UK. Tax may apply when crypto is sold, exchanged for another cryptoasset, used for purchases, gifted, or received through activities such as mining, staking, employment, lending or DeFi.

The main issue is not simply whether crypto has increased in value. The issue is whether a taxable event has taken place and whether the records support the figures reported to HMRC. MMBA can help identify taxable events, calculate gains or income, review historic records and advise on the correct reporting route.

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Find the MMBA Crypto Accountant UK Near You

If you are looking for a crypto accountant near you, MMBA supports clients across the UK from our London office, Preston office, Cambridge office and Luton office. We work locally and remotely, helping clients with self assessment, historic disclosures, company crypto accounts and audit-ready records.

Expert Crypto Audit Support by MMBA

For businesses that hold or accept cryptoassets, audit work depends on reliable evidence, reconciliations and clear financial reporting. MMBA supports the accounting and audit-readiness side of digital asset work, including wallet evidence, exchange statements, valuation support and disclosures, and can assist where crypto balances sit within a statutory audit. For in-scope firms, this work also supports preparation for the FCA regime.

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Leading Crypto Audit Solutions by MMBA in the UK

MMBA supports businesses that hold, accept or transact in cryptoassets and need clear audit evidence, reliable accounting records and accurate financial reporting. This can include companies holding crypto on the balance sheet, businesses accepting crypto payments, mining operations, digital asset businesses and organisations preparing accounts where crypto activity affects the financial statements.

Our crypto audit support can cover wallet and exchange records, ownership evidence, custody information, valuation support, reconciliations and financial statement disclosures. Where cryptoassets affect a company’s accounts or audit file, we help prepare records that are easier to review, explain and support.

If your organisation needs a crypto-related review, audit-ready records or a statutory audit involving digital assets, MMBA can provide the specialist accounting and assurance support required to report clearly and confidently.

Crypto Tax Resources and Knowledge Base

The MMBA Accountant offers a fantastic opportunity to stay updated with the most recent news and guidance.

Frequently Asked Questions

What does crypto accountants do?

A crypto accountant helps organise digital asset records, calculate gains and losses, identify income events, prepare tax returns and support HMRC-compliant reporting. This can include wallets, exchanges, staking, mining, DeFi, NFTs and company crypto accounts.

The cost depends on the number of transactions, the number of wallets and exchanges, the quality of records and whether you need self assessment, company accounts, disclosure support or audit work. Simple cases cost less, while complex multi-year or business cases require more detailed review.

MMBA does not manage crypto investments or provide regulated investment advice. We provide tax, accounting, reporting and audit support for cryptoasset activity. If you need investment management, you should speak to a properly authorised financial adviser.

You calculate gains and losses from taxable disposals, include the figures on your self assessment return where required, and pay the tax due to HMRC. The calculation should be supported by records showing acquisition costs, disposal proceeds, fees, dates, sterling values and pooled costs.

Depending on your activity, crypto may create capital gains tax, income tax, corporation tax or other reporting issues. Selling or exchanging crypto often creates capital gains tax considerations, while mining, staking, employment rewards and some DeFi activity may create Income Tax issues.

You can benefit from a crypto accountant if you use multiple wallets or exchanges, have staking or DeFi activity, hold crypto through a company, have missing records, or need to correct historic gains. Specialist support can reduce reporting errors and help prepare records that stand up to HMRC review.

If taxable crypto income or gains are not reported, HMRC may charge tax, interest and penalties. MMBA can help review your records, calculate the position and advise on the correct disclosure route.

You do not list every transaction separately on your tax return, but you need enough records to calculate taxable disposals and income correctly. HMRC may ask to see records during a compliance check, so accurate transaction records are important.

HMRC can receive information from crypto platforms, and reporting frameworks such as CARF are increasing visibility over cryptoasset activity. This makes accurate records and correct reporting more important.

CARF is the Cryptoasset Reporting Framework. It requires certain cryptoasset service providers to collect and report user and transaction data to HMRC. Individual investors may not report under CARF directly, but the framework increases HMRC visibility over crypto activity.

The FCA’s new regime is mainly relevant to businesses carrying out regulated cryptoasset activities. For investors, the immediate issue is accurate tax reporting and record-keeping. For crypto businesses, the regime increases the need for stronger records, reconciliations, controls and financial reporting.

If you report crypto gains on self assessment, HMRC says the figures should be entered in the cryptoasset section in pound sterling, and that section is available on returns for the 2024 to 2025 tax year onwards.

Yes. HMRC has a disclosure route for unpaid cryptoasset tax, and undeclared amounts can attract extra interest and penalties. MMBA can review historic transactions, calculate gains or income, and prepare figures for disclosure.

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