In the UK, HMRC taxes RWAs under normal rules rather than a special crypto regime. Broadly, selling a tokenized asset for a profit is subject to capital gains tax, and yield or distributions are subject to income tax. You have an annual capital-gains exemption, after which gains are taxed at your CGT rate. The exact rates and the shrinking annual exemption change over time, so treat the figures as the shape, and confirm the current numbers with HMRC or an adviser.

Capital gains on disposals

When you sell, swap, or otherwise dispose of a tokenized security for more than it cost, the profit is generally a chargeable capital gain. Gains above your annual exempt amount are taxed at the applicable CGT rate.

Note that "disposal" is broad - it can include swapping one token for another, not only cashing out to pounds. Each disposal is a potential CGT event you need to record.

Income tax on yield

Income you receive - interest from a tokenized treasury, rental distributions from a property token, or similar yield - is generally taxable as income, not as a capital gain.

The distinction matters because income and capital gains have different rates, allowances, and reporting. Separate the two in your records: what you earned as yield versus what you made on disposal.

The annual exemption and reporting

The UK gives individuals an annual capital-gains exemption, though it has been reduced in recent years. Gains within it are tax-free; above it, you report and pay. You generally report through Self Assessment, and HMRC expects accurate figures.

Because the exemption and rates shift, check the current year's numbers. The principle is stable; the thresholds are not.

Keeping records HMRC accepts

Keep the date, amount, and value of every acquisition, every disposal with proceeds and cost basis, and all income received. HMRC can request this, and on-chain activity is traceable, so good records are both compliance and protection.

The US-focused mechanics in the global tax cluster illustrate the same gains-versus-income logic. For your actual UK position, use HMRC guidance or a professional.

The current numbers (and a 2026 change)

Treat these as the 2026 shape, not permanent law. The annual CGT exempt amount is now £3,000 - cut hard from £12,300 in 2022/23 - and it cannot be carried forward. Since the October 2024 Budget, crypto and most asset gains are taxed at 18% where they fall in your unused basic-rate band and 24% above it, up from the old 10%/20%. Income - staking rewards, interest from a tokenized treasury, rental distributions - is taxed at your income-tax band of 20%, 40%, or 45%.

Two mechanics catch people out. HMRC uses Section 104 "pooling" for cost basis - you average the cost of identical tokens rather than tracking each lot - with special 30-day matching rules that block wash-sale-style timing. And from 1 January 2026 the UK applies the OECD Crypto-Asset Reporting Framework: platforms collect your data this year, with the first reports to HMRC due by 31 May 2027. In practice, assume HMRC will receive your exchange records, so file as if it already has them.

You report through Self Assessment by 31 January, and HMRC also runs a real-time CGT service for one-off disposals. One edge case to know: if HMRC judges your activity to be a trade - rare for individuals but possible at very high frequency - the profits fall under income tax rather than CGT, taxed at your 20%, 40%, or 45% band instead of the 18%/24% CGT rates.

Where to go next

• Next: tokenizing an asset under UK law.
• The concepts: the global tax cluster.
• Glossary: yield.

Sources: HMRC Cryptoassets Manual (gov.uk/hmrc), as of 2026.