Case of the month April 26

April 22, 2026
Hand holding Bitcoin in front of trading chart

Case Study: Sorting a Complex Crypto Tax Return

Scenario

Mr A had been investing in crypto for a few years and things had gradually grown. What started as a bit of buying and selling developed into a much more complex portfolio, involving trading across multiple exchanges, moving coins between wallets, swapping tokens, and earning staking rewards.

When the Self-Assessment deadline  came around, he realised he had no clear way of working out what he actually owed and the transaction history was a mess.

The Issue

Crypto tax isn’t just about when you cash out into pounds. Token-to-token swaps are taxable, staking rewards can count as income, and transfers between wallets can easily be mistaken for “disposals” if the records aren’t handled properly.

Mr A’s biggest worry was getting the figures wrong and ending up with a HMRC problem later down the line. He also didn’t want to overpay tax just because the calculations were unclear.

How We Helped

We pulled together his exchange and wallet data and rebuilt the position properly.

  • Reconciled transactions across different platforms and removed wallet-to-wallet transfers that weren’t taxable
  • Identified what counted as a disposal for CGT purposes, including swaps and crypto-to-fiat sales
  • Separated staking rewards and other income from capital gains activity
  • Applied HMRC’s pooling rules and matching rules to calculate gains accurately
  • Produced clear working papers so the figures could be supported if HMRC ever asked.

Outcome

Mr A’s Self-Assessment return was filed with the correct crypto figures, backed up by proper calculations. Any allowable losses were also picked up, meaning he didn’t pay more tax than he needed to.

Client Benefit

Mr A got peace of mind that everything was reported correctly and HMRC-compliantly. He also came away with a much clearer understanding of how crypto is taxed and what records he needs to keep going forward.

Next steps

If this is a situation you are in or you have any queries do not hesitate to contact us enquiries@etctax.co.uk

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