Do you pay tax on cryptoassets? How to report and pay it

Almost one in 10 people in the UK own cryptoassets, but HMRC suspects tens of thousands are failing to pay tax on them properly.According to the Financial Conduct Authority (FCA), 8% of UK adults held cryptoassets in 2025, up from 4% in 2021.However, there’s concern some crypto investors don’t understand the tax implications of receiving, holding and selling these assets.HMRC sent out 81,000 warning letters to crypto investors it suspected of underpaying tax in 2025/26, according to