UK Deferring DeFi Capital Gains Tax in Major Win for Crypto Users

The UK’s tax authority, HM Revenue & Customs, has delivered a landmark policy shift for the digital asset industry, confirming that depositing cryptoassets into decentralized finance (DeFi) lending protocols and liquidity pools will no longer be treated as a taxable disposal. Under the newly announced rules, any capital gains tax liabilities will be deferred until an investor makes a genuine economic disposal of the assets.

The policy update, detailed in a comprehensive policy paper published Monday, is set to take effect on April 6, 2027. The measure will formally amend the Taxation of Chargeable Gains Act 1992. According to official estimates, this regulatory pivot will directly benefit approximately 700,000 individuals and trustees who actively participate in crypto loans and liquidity pools.

This decision marks a significant departure from the tax authority’s controversial 2022 guidance. Under those previous rules, transferring tokens into a DeFi protocol was often classified as a disposal. This meant that users faced capital gains tax on paper gains before they had actually sold or liquidated their assets. Industry stakeholders quickly flagged that this framework created disproportionate administrative burdens, forcing taxpayers to track complex smart contract interactions that did not result in actual financial cash-outs. The new rules aim to resolve these frictions by aligning tax liabilities with the true economic reality of the transactions.

To achieve this, the government is introducing a “no gain, no loss” treatment that applies to three primary DeFi activities: lending a single cryptoasset, borrowing a cryptoasset, and supplying tokens to an automated market maker—the smart-contract engine that powers decentralized liquidity pools. Under the new framework, entering or exiting these arrangements using the same asset will not trigger a taxable event. Instead, a capital gains tax event will only occur when a user executes a real disposal, or if they withdraw a different quantity of tokens from a liquidity pool than they originally deposited. Furthermore, any collateral posted to secure a crypto loan will be completely disregarded for capital gains tax purposes.

The policy shift is the culmination of a multi-year collaborative process between regulators and the crypto sector, starting with a 2022 call for evidence, moving through a 2023 consultation, and culminating in a summary of responses presented at Budget 2025.

Prominent figures in the Web3 ecosystem have welcomed the news. Stani Kulechov, the founder of the leading DeFi lending protocol Aave, praised the decision on social media, calling the updated approach “the right direction.” Kulechov noted that the previous rules would have overwhelmed everyday taxpayers with excessive paperwork, and credited active industry feedback for successfully shaping the final policy.

Kulechov pointed to this development as clear evidence of the sector’s growing maturity and influence. He compared the successful advocacy to previous industry efforts regarding a proposed £20,000 cap on individual stablecoin holdings, suggesting that structured dialogue is helping build a more sophisticated regulatory environment in the UK. He also highlighted separate, ongoing plans by HM Revenue & Customs to tax stablecoins more like money, reflecting their utility as payment instruments rather than speculative assets.

While the policy has been formally announced, its final costing still requires official certification by the Office for Budget Responsibility. Because the rules will not take effect until April 2027, UK market participants and DeFi protocols have a transition window of more than a year to adapt their systems and reporting tools to the new tax regime.