12% of UK adults now own crypto, according to the FCA. With HMRC sending 65,000 crypto nudge letters and crypto formally recognised as property, forward-thinking accountants are using Self Assessment season to grow business. Here are 5 questions you’re likely to hear, plus tips to streamline reconciliations and find your edge.
1. “How do we make sure I’m not paying more tax than I need to?”
Clients want tax minimisation, but the answer isn’t clever loopholes. It’s about getting accurate numbers, spotting genuine tax-saving opportunities and being able to stand behind every figure if HMRC ever asks.
The right tools, such as specialised crypto tax software, help you turn a vague “can you keep my tax down?” into a structured advisory conversation rather than a rushed spreadsheet exercise in the last week of January.
Summ (formerly Crypto Tax Calculator) is built with that in mind. The online crypto tax platform applies UK matching rules for you and gives you practical ways to make the work pay:
- Guided reconciliation: Review tools to maximise deductions, reconcile large transaction histories without losing track and one click “similar transactions.”
- Flexible for firms: Summ is free for accountants. You get unlimited clients, a client management dashboard (manage both business and individual clients accounting in one place), plus priority support. Either the client or your firm can then pay for a client’s subscription that covers multiple tax years, and is based on the number of transactions.
- Frictionless migration: If clients are already using other crypto tax software, Summ can help migrate your client base over for free.
2. “I’ve used loads of exchanges and wallets… and I’m doing DeFi, NFTs, staking and airdrops. Can you handle all of that?”
Clients are increasingly turning up with activity spread across multiple exchanges, wallets, DeFi protocols, and NFTs.
The data can be messy, incomplete and sometimes full of spam or dust transactions that can impact overall calculations. Summ pulls all of that into a single view with:
- Broad integration coverage: Over 3,500 integrations across CEXs, DEXs, wallets and chains. Full support for DeFi, NFT, staking and airdrops, plus clear treatment for income vs capital gains.
- Cleaner data: Unique spam filtering controls help strip out junk tokens and fake outgoings so spam doesn’t corrupt gains and losses.
- Easier data collection: Optional invitations let clients connect their own exchanges and wallets without sharing passwords, so you spend less time chasing CSVs.
3. “Is this HMRC-compliant? I don’t want any surprises later.”
With the UK rolling out the OECD’s Crypto-Asset Reporting Framework (CARF), crypto exchanges will start collecting detailed data from 1 January 2026 and reporting it to HMRC from 2027. No wonder clients are nervous about getting their numbers right.
It’s easy to make mistakes in spreadsheets or generic gain/loss tools. You need software built specifically around UK crypto regulations. Again, Summ has a dedicated UK rules engine aligned with HMRC guidance. The platform makes it easy by:
- Applying the UK rules for you: Summ automatically handles Same Day, 30-day Bed and Breakfast and Section 104 share pooling, so disposals are matched correctly and gains and losses are calculated on the right basis.
- Provides smart suggestions for accuracy: Supports DeFi, NFT, staking and airdrops, with clear treatment for income and capital in line with HMRC’s view.
- Prepares HMRC-ready reports: Summ lays out results in a way that makes it easier to map numbers to SA100 and SA108 entries and explain your workings if HMRC ever asks.
4. “Can we also fix past tax years? I may not have got this right previously.”
With CARF on the way and the HMRC sending reminders — clients might share that past years were under-reported, guessed or based on incomplete exchange summaries.
You can correct the record now and be ready with proper evidence if HMRC ever asks.
- Cost-effective coverage: Unlike some providers, Summ’s subscription model is based on transaction volume, not tax years .Under the one plan subscription price you can download unlimited reports each year, perfect for users who need to make adjustments or are filing for multiple years at once, providing a more cost-effective way to go back as far as you need.
- Correct historic treatment: Recalculate multiple tax years in one place, with historic HMRC rules applied correctly for each year. Make sensible use of capital losses that were missed or not fully utilised. Summ offers Tax Year Locking, equipping you with full control over tax treatments for transactions spanning multiple financial years.
5. “How can we make this easier next year?”
Instead of a painful one-off clean-up each year, the goal is for crypto to slot into the annual Self Assessment process without rebuilding the picture from scratch every January.
- Built for ongoing relationships: Summ is not just DIY retail users. An updated client dashboard makes it easier to see who’s in, who’s pending and which high-volume clients need attention first.
- Smooth, proven workflow: Help your team move through complex crypto clients with confidence rather than fighting the software. That’s why Summ is an official tax partner of Coinbase and MetaMask, and seriously loved by users (4.6 / 5 stars on Trustpilot).
Want to learn more? Contact our UK team to ask a question or book your no-obligation 1-1 Summ demo call.
