Your clients trade crypto. We handle the tax calculations.
BlockBooks is a specialist crypto tax service built to work alongside accounting practices. We reconcile on-chain and exchange activity, and deliver HMRC-ready working papers directly to you — so you can serve crypto clients without building the expertise in-house.
How the partnership works
A simple, repeatable process — no crypto expertise required on your side.
- 1
Refer or onboard
Introduce your client to us, or send through wallet addresses and exchange exports directly. We handle the data collection.
- 2
We reconcile everything
Our engine processes on-chain activity, exchange data, DeFi, staking, and NFTs. Every reconciliation is human-reviewed for accuracy.
- 3
You receive working papers
We deliver a complete SA108 Capital Gains summary, income schedule, and full audit trail — ready for Self Assessment.
What your practice gets
HMRC-ready working papers
SA108 Capital Gains summary, supporting schedules, and income calculations — formatted for Self Assessment.
Full audit trail
Every transaction mapped, classified, and traceable. Your client's figures are defensible and documented.
Direct collaboration
We work alongside your team. Questions, anomalies, and scope changes are discussed before they become surprises.
Broad coverage
Trading, DeFi, staking, NFTs, bridging, liquidity pools — we handle the full range of on-chain and exchange activity.
Scope agreed upfront
Clear pricing based on wallets, exchanges, and transaction volume. No surprises for you or your client.
Retain the client relationship
We handle the crypto complexity. You stay in control of the client engagement and the filing.
Built by someone who speaks your language
BlockBooks is led by Tim Whitehouse. Tim began his career as an audit graduate trainee at EY, progressing to Manager in the Transaction Support team — performing acquisition due diligence and deep-diving into complex balance sheets. After leaving the Big Four, he founded one of the early online accounting practices built on Xero, later selling it to a larger firm.
The challenge of crypto — reconciling on-chain activity, classifying DeFi transactions, and navigating HMRC's evolving guidance — brought him back to accounting. Every BlockBooks reconciliation is completed personally and reviewed to the standard you'd expect from a Big Four-trained professional.
Connect with Tim on LinkedInReady to discuss a partnership?
Let's talk about how BlockBooks can support your practice with crypto tax reconciliations.