UK defers crypto lending tax until disposal

TLDR

The UK will defer capital gains tax on many crypto lending and liquidity pool deposits until disposal, using a new "no gain, no loss" regime from April 2027.

1. HMRC will treat specified lending, borrowing and automated market maker arrangements as "no gain, no loss", so same-asset deposits and withdrawals no longer trigger capital gains events.
2. UK DeFi users still owe tax on yields when received, but capital gains arise only when they sell, swap, spend, or withdraw a different amount than originally deposited.
3. The change takes effect on 6 April 2027 and sits alongside wider UK plans on stablecoin taxation and stricter FCA authorization for crypto businesses.

Deep Dive

1. What Has Changed

HM Revenue & Customs (HMRC) has published a policy that reclassifies many crypto lending and liquidity pool transactions as "no gain, no loss", deferring capital gains tax until an economic disposal of the assets. Under the new rules, lending a single cryptoasset, borrowing one, or supplying tokens to an automated market maker will not create a taxable disposal if you later exit in the same asset and quantity.

A gain or loss will instead be recognized only when there is a genuine disposal, or in liquidity pools if you withdraw more or fewer tokens than you deposited. Collateral posted to borrow will also be disregarded for capital gains tax. The change amends the Taxation of Chargeable Gains Act 1992 and is due to start on 6 April 2027, affecting roughly 700,000 UK users, according to HMRC and reports such as this policy overview.

2. How It Affects UK Crypto Users

For UK individuals, the key shift is timing. Previously, HMRC guidance could treat moving tokens into a DeFi loan or liquidity pool as a disposal, potentially triggering capital gains tax before you had sold anything. From 2027, those entry and exit steps are tax neutral if the asset and amount match.

However, this does not remove tax entirely. Rewards or yield from lending or pools remain taxable as income in the year received, and standard capital gains rates (currently 18% for basic-rate and 24% for higher-rate taxpayers) still apply when you actually dispose of the tokens.

3. Wider Regulatory Context And What To Watch

The lending and liquidity pool change arrives alongside broader UK digital asset reforms. HMRC is also proposing to treat some qualifying stablecoins more like cash, with returns taxed as savings income rather than capital gains from around 2027, and the FCA is rolling out a full authorization regime for UK crypto firms.

Between now and April 2027, draft legislation and detailed guidance will be finalized, and HMRC may refine which arrangements qualify for "no gain, no loss". Industry voices, including Aave founder Stani Kulechov, have welcomed the move as reducing administrative burden, but implementation details will matter for edge cases such as complex multi-token pools.

Conclusion

By deferring capital gains tax on many crypto lending and liquidity pool deposits until true disposal, the UK is aligning tax treatment more closely with the economic reality of DeFi. This reduces friction for UK users who want to supply liquidity or lend tokens without triggering tax on every protocol interaction, while keeping yields and genuine disposals within the tax net. The opportunity is a more DeFi-friendly environment, but the practical impact will depend on how consistently HMRC and the FCA apply these rules once they come into force in 2027.