ACCA-qualified · Blackfriars, London EC4Y
Crypto Accountant London
Need a crypto accountant in London? We are an ACCA-qualified firm based at 2 Tallis St, Blackfriars, a few minutes from Blackfriars station. We prepare HMRC-compliant crypto tax returns for London investors, traders, DeFi users and Web3 businesses — in person by appointment, or fully remote.
Where is your London office?
Our office is at 2 Tallis St, Blackfriars, London EC4Y 0AB, just off Temple Avenue between Blackfriars and Temple. We see clients by appointment rather than as a walk-in practice, so please call or book a slot first. If it is easier, we can do everything by video call instead.
2 Tallis St, Blackfriars
London EC4Y 0AB
Getting here
| Station | Lines | Approximate walk |
|---|---|---|
| Blackfriars | Circle, District, Thameslink | About 4 minutes |
| City Thameslink | Thameslink | About 6 minutes |
| Temple | Circle, District | About 7 minutes |
| St Paul’s | Central | About 10 minutes |
We are inside the Congestion Charge zone and on-street parking is very limited, so public transport is almost always quicker. Buses along Victoria Embankment and Fleet Street stop within a couple of minutes’ walk.
Which parts of London do you cover?
We work with clients across the whole of Greater London. Because crypto accounting is document-driven rather than face-to-face, most of the work happens remotely wherever you are based — but if you want to sit down with the person handling your return, our Blackfriars office is central and easy to reach.
| Area | How we usually work |
|---|---|
| City of London, Blackfriars, Farringdon | In person at our office, by appointment |
| Canary Wharf, Tower Hamlets, Docklands | In person or video call |
| Shoreditch, Hackney, Old Street | In person or video call |
| Westminster, Mayfair, Soho, Fitzrovia | In person or video call |
| Camden, Islington, King’s Cross | In person or video call |
| Southwark, Bermondsey, London Bridge | In person or video call |
| Kensington, Chelsea, Fulham, Hammersmith | Video call, or in person by arrangement |
| Richmond, Wandsworth, Clapham, south-west London | Video call, or in person by arrangement |
| Outer London and the Home Counties | Fully remote |
We also act for clients across the rest of the UK and overseas. If you are not in London, our UK crypto tax accountant service covers exactly the same work remotely.
Industry presence
Full time in digital assets
We work in the digital asset industry full time, not as a sideline — here at the FT Live and The Banker Digital Assets Summit.
What does a crypto accountant in London actually do?
The core job is turning messy on-chain and exchange activity into figures HMRC will accept. That means rebuilding your transaction history, applying share pooling and the 30-day rule, separating capital gains from income, and filing the Self Assessment return. Advisory work sits on top of that.
| Service | What it covers |
|---|---|
| Crypto tax returns | HMRC Self Assessment including capital gains, staking and mining income, and disposals across exchanges and wallets |
| Crypto reconciliation | Tracing missing cost bases, matching self-transfers so they are not counted as sales, and rebuilding history from closed exchanges |
| Crypto tax advisory | Planning around disposals, loss relief, timing and structure before the transaction happens rather than after |
| NFT accounting | Mints, secondary sales, royalties and marketplace fees for creators and collectors |
| Web3 CFO | Treasury policy, runway modelling and investor reporting for London-based protocols, DAOs and Web3 startups |
| Company formation | Choosing and setting up the right structure before profits are realised, plus ongoing compliance |
How much does a crypto accountant in London cost?
We quote a fixed fee before any work starts, not an open-ended hourly rate. The figure depends on how many transactions you have, how many exchanges and wallets are involved, how many tax years need filing, and whether there is DeFi or NFT activity to classify. The initial 20-minute review is free.
The honest answer is that a straightforward portfolio held on one or two mainstream exchanges is a much smaller job than four unfiled years spread across DeFi protocols, bridges and a dozen wallets — and the fee should reflect that. We will tell you which of those you are before you commit to anything.
If you just want a rough sense of the tax itself, our free UK crypto tax calculator will give you an estimate in a couple of minutes with no signup.
When should a London crypto investor speak to an accountant?
Most people leave it until January. The better triggers are earlier and more specific: a letter from HMRC, an exchange asking for identity details, a year with significant disposals, or any activity your tax software has quietly labelled as unknown.
- You have received an HMRC nudge letter or a crypto enquiry.
- Your exchange has asked for your National Insurance number under new reporting rules.
- You have more than a few hundred transactions and your software output no longer reconciles.
- You are into DeFi — staking, lending, liquidity pools, restaking or cross-chain bridging.
- You mint or sell NFTs, or earn royalties on them.
- You have earlier tax years that were never filed.
- You are moving crypto into or out of a limited company.
- You are planning your estate and crypto forms part of it.
HMRC publishes its position on digital assets in the Cryptoassets Manual, and our registration is listed in the ACCA find-an-accountant directory.
What should you bring to the first meeting?
Nothing polished. Come with whatever you have and we will tell you what is missing. The most useful starting point is a list of every exchange and wallet you have ever used, including the ones you would rather forget about.
- A list of exchanges and wallet addresses, including closed or abandoned accounts.
- Any CSV exports or API connections you already have.
- Your existing Koinly, CoinTracking or similar report, if you have one.
- Previous Self Assessment returns, if you have filed before.
- Your Unique Taxpayer Reference, if you already have one.
- Any correspondence from HMRC.
Which HMRC deadlines matter?
| Date | What it is |
|---|---|
| 5 April | UK tax year ends. Disposals after this date fall into the next year. |
| 5 October | Deadline to register for Self Assessment if this is your first year needing to file. |
| 31 October | Paper Self Assessment return deadline. |
| 31 January | Online Self Assessment return deadline, and the date any tax owed must be paid. |
Reconciliation is the slow part, not the filing. If you have several years of DeFi activity to rebuild, starting in January is starting late. There is more detail on our crypto tax FAQs page.
What do clients say?
“Everyone at Crypto Accountants was calm, professional and helpful. He has a deep technical knowledge of crypto and tax, and exactly what HMRC requires.”
Carmel Nicholson · Google review
“I had an HMRC deadline to meet which required a lot of work in a restricted amount of time. The work was thorough with high expertise.”
Jerry Ezekiel · Trustpilot, June 2026
“Excellent crypto accountants who have made this specialism their own niche. They are proactive and professional.”
Mrs Aida · Trustpilot, July 2026
You can read all of them on Trustpilot and on our Google Business Profile.
Frequently asked questions
Do I need a specialist, or will any London accountant do?
A general accountant can file a Self Assessment return. The difficulty with crypto is everything upstream of that: share pooling under section 104, same-day and 30-day matching, whether a wrapped token is a disposal, and whether your activity is investing or trading. Those judgements change the number, and most high street firms have not had to make them.
Can I actually meet someone, or is this all online?
You can meet us at the Blackfriars office by appointment. Many clients never need to, because the work is driven by exchange data rather than paperwork, but the option is there and it costs nothing extra.
Do you only work with clients in London?
No. We act for clients across the UK and internationally. London clients simply have the option of coming in.
How far back can you file?
Several years, and unfiled earlier years are common in crypto. Where returns are late or previously incorrect, disclosure is usually better handled proactively than waited on. We will explain the options before you decide anything.
Will HMRC find out about my crypto anyway?
Exchanges operating in the UK are subject to expanding reporting obligations, which is why many have started asking customers for a National Insurance number or tax reference. Assume the data reaches HMRC.
Do you work with Koinly or CoinTracking?
Yes, we work in both and in CryptoTaxCalculator. Software is the starting point, not the finished return — the value is in checking what it got wrong.
Talk to a crypto accountant in London
A free 20-minute review, either at our Blackfriars office or by video call. We will tell you what shape your position is in and what it will take to fix it.