UK HMRC adopts “no gain, no loss” tax treatment for DeFi crypto loans

1. HM Revenue & Customs announced that from 6 April 2027 crypto‑lending and liquidity‑pool disposals will be treated as “no gain, no loss”, deferring capital‑gains tax until an actual economic disposal occurs【1】. The change is aimed at reducing the administrative burden that the 2022 guidance placed on roughly 700,000 UK individuals and trustees who use DeFi protocols【4】.

Scope of the new treatment

HMRC’s policy paper outlines three scenarios that receive the “no gain, no loss” treatment: (1) lending a single cryptoasset where the interest is exchanged for the same type of asset, (2) borrowing arrangements where the borrowed crypto is valued at market price and collateral is ignored for CGT, and (3) supplying tokens to an automated market‑making (AMM) liquidity pool, with gains or losses recognised only if the withdrawal amount differs from the initial deposit【2】. This aligns tax outcomes with the economic substance of DeFi activities, addressing the “disproportionate administrative burdens” highlighted in the 2022 guidance【4】.

Impact and industry response

The measure is expected to affect about 700,000 UK crypto participants, shifting the tax liability from the moment of deposit or loan to the point of a genuine disposal【1】. Aave founder Stani Kulechov praised the change as “the right direction,” noting that alternative approaches would have imposed heavy paperwork on taxpayers【4】. While the Office for Budget Responsibility will later certify the fiscal cost, HMRC has indicated that the policy is not likely to produce a significant macro‑economic impact【2】.

What to watch

• April 6 2027 – the date the new “no gain, no loss” rules become effective.
• Policy cost certification – the OBR’s final assessment could influence future fiscal decisions.
• Further DeFi guidance – HMRC has signaled additional rules for stablecoins, which may affect broader crypto tax treatment.

The shift signals a move toward integrating DeFi activities into the traditional tax framework, reducing immediate tax liabilities for UK crypto users while placing the onus on actual disposals to trigger gains or losses. How the market responds to the deferred tax burden and whether similar approaches spread to other jurisdictions remain open questions.