Count On Sheep
HMRC, UK Crypto Tax 2025/26

Crypto Tax Help for UK Investors

HMRC-ready reconciliation for your accountant or Self Assessment

The short answer

Count On Sheep is a digital-asset reconciliation service for UK crypto investors. We rebuild your full crypto and DeFi history, then produce HMRC-ready gains and income figures, including your SA108 cryptoassets numbers, for your accountant or your own Self Assessment. We reconcile the numbers. You or your accountant file.

A crypto tax service built for UK investors

Count On Sheep is a specialist crypto tax service for the UK. Whether you trade on a single exchange or run a multi-chain DeFi portfolio, we rebuild the full picture and produce figures HMRC will accept. We work either directly with you if you file your own Self Assessment, or alongside your existing accountant. The outcome is the same: clean, defensible numbers, and a clear audit trail behind every one.

Four step process showing connect, reconcile, HMRC-ready figures, then your accountant files
We reconcile, you file. We rebuild your full history and hand over HMRC-ready figures; your accountant or Self Assessment files the return.

Why crypto needs more than a standard accountant

A great UK accountant knows tax. What most are not built for is reconstructing thousands of on-chain transactions across many wallets, exchanges and DeFi protocols, valuing each one in pounds, and applying the UK pooling and matching rules correctly. That reconstruction is a specialist job, and it is the part that goes wrong when crypto is handled like ordinary share trades.

We sit alongside your accountant, not in place of them. We do the heavy reconciliation and hand over clean, defensible figures. They do what they do best and file the return.

How it works

1
Connect everything

You grant read-only access or share CSV exports and wallet addresses for every exchange, chain and protocol you have touched.

2
We reconcile

We rebuild your full transaction history, value every disposal in GBP, apply Section 104 pooling and the same-day and 30-day rules, and classify staking, mining, airdrops and DeFi correctly.

3
You get HMRC-ready figures

You receive reconciled gains and income totals, your SA108 cryptoassets numbers, and the workpapers behind every line, ready to file.

4
Your accountant files

Your accountant or your own Self Assessment completes the return. We stay out of filing so the numbers stay independent and defensible.

What you get

  • Reconciled capital gains and income totals for the tax year, in GBP.
  • Your SA108 cryptoassets figures, ready to enter on the return.
  • Staking, mining, airdrop and DeFi income classified on the correct UK basis.
  • Full reconciliation workpapers behind every number, in case HMRC asks.
  • A clear record of assumptions where cost basis had to be reconstructed.
One ledger, every source
Exchanges, self-custody wallets, hardware wallets, Layer 2s and DeFi protocols are pulled into a single reconciled ledger. No gaps, no guesses left undocumented.
Grid of deliverables, gains and income totals, SA108 figures, classified income, workpapers, documented assumptions, one ledger
Your deliverable: reconciled totals, SA108 cryptoassets figures, classified income, workpapers and documented assumptions.

What it costs

There is no single sticker price for crypto tax work, and any firm that quotes one before seeing your activity is guessing. Cost scales with complexity: the number of transactions, how many exchanges and wallets you have used, whether DeFi is involved, and how many tax years need rebuilding.

  • Single exchange, one tax year: the lightest engagement, priced accordingly.
  • Several exchanges and wallets: more sources to reconcile into one ledger.
  • DeFi, staking and multiple chains: the most involved, because every leg is valued and matched individually.
  • Prior years to fix: each year is rebuilt in order so a disclosure stands up.
Fixed price, agreed up front
We scope the work from a short brief about your activity, then quote a fixed price before anything starts. You know the cost and the scope before you commit.

Why investors trust the figures

Our deliverable is built to survive scrutiny. Every gain and income figure traces back to a source transaction, valued in GBP at the right moment, with the UK pooling and matching rules applied in order. We document every assumption where cost basis had to be reconstructed, so your accountant and HMRC can both see exactly how a number was reached. Because we never file the return ourselves, the reconciliation stays independent of the filing, which is how it should be.

Understand the rules first

Want the detail behind the numbers? Start with the UK Crypto Tax Guide for 2025/26, estimate your bill with the UK crypto tax calculator, or read how HMRC sees crypto through exchange data and the CARF rules.

Get HMRC-ready figures for your accountant

Count On Sheep is a universal digital-asset reconciliation service. We rebuild your full crypto and DeFi transaction history across every exchange, wallet, and chain, then produce HMRC-ready figures your UK accountant or your Self Assessment return can rely on. We do not file UK tax returns. We are the reconciliation layer that hands clean, defensible numbers to the tax professional who completes your return.

Book a free call

UK crypto tax FAQs

Do you file my UK tax return?

No, and that is deliberate. Count On Sheep is a digital-asset reconciliation service. We rebuild your full crypto and DeFi history across every exchange, wallet and chain, then produce HMRC-ready figures, including your SA108 cryptoassets numbers. Your accountant or your own Self Assessment files the return. Staying out of filing keeps the engagement clean and the workpapers independent.

Do you work with UK clients from the US?

Yes. Count On Sheep is a US-based crypto reconciliation firm that serves UK clients during UK business hours (GMT/BST). We handle the full calculation across DeFi, exchanges and wallets, then deliver HMRC-ready, SA108-ready figures to you or your UK accountant. We do not file UK returns; your accountant or your own Self Assessment completes the filing.

Can my UK accountant use your reports?

Yes, that is exactly the point. Most UK accountants are excellent on tax but are not set up to reconstruct on-chain history across dozens of wallets and DeFi protocols. We hand them clean gains and income totals, the SA108 cryptoassets figures, and the reconciliation workpapers behind every number so they can file with confidence.

I do my own Self Assessment. Can you still help?

Yes. If you self-file, our deliverable gives you the exact figures to enter into the SA108 cryptoassets boxes and the income side of your return, with workpapers that back up every line if HMRC ever asks.

What do you need to start?

Read-only access or CSV exports from your exchanges, the wallet addresses for every chain you have used, any prior-year returns that touched crypto, and a short brief on your DeFi activity. We scope the work from there.

Do you cover DeFi, staking and NFTs?

Yes. DeFi is where most software and generalist accountants get vague. We map each position to its actual transaction pattern, decide whether a disposal occurred, value every leg in GBP, and treat staking, mining, airdrops and NFTs on their correct UK basis.

How much does a crypto tax accountant cost in the UK?

Pricing for crypto tax work in the UK usually scales with the number of transactions, exchanges, wallets and DeFi protocols involved, and how many tax years need rebuilding. A simple single-exchange year is far less work than several years of multi-chain DeFi. We scope every engagement up front and quote a fixed price before any work starts, so there are no surprises. Send us a short brief and we will price it.

How long does a crypto tax reconciliation take?

A straightforward single-year, single-exchange reconciliation can turn around quickly. Multi-year, multi-chain DeFi histories take longer because every leg has to be valued and matched in the right order. We give you a realistic timeline when we scope the work, and we prioritise jobs with a filing deadline approaching.

More UK crypto tax guides

UK crypto tax calculatorEstimate your 2025/26 Capital Gains TaxHow much crypto is tax free in the UK?Allowances, thresholds and when you payDoes HMRC know about your crypto?CARF and exchange reporting in 2026DeFi tax UKLending, liquidity, staking and yieldUK Crypto Tax Guide 2025/26The full HMRC pillar guide