UK HMRC adopts no‑gain‑no‑loss tax for crypto lending and liquidity

1. The United Kingdom’s tax authority announced that deposits into crypto lending protocols and automated market‑making pools will no longer trigger an immediate capital gains tax charge, with the “no gain, no loss” rule taking effect on 6 April 2027 and deferring tax until a true economic disposal occurs【1】.

Scope of the new rules

HMRC’s policy paper outlines three scenarios that receive the new treatment. First, a single‑asset lending arrangement where a user swaps crypto for the same type of asset will be taxed only when the underlying crypto is economically disposed of. Second, borrowing arrangements will value borrowed crypto at market price at the time of borrowing, ignoring any collateral for CGT purposes. Third, participants in automated market‑making (AMM) pools receive no‑gain‑no‑loss status so long as they withdraw the same quantity of the original token; any excess or shortfall triggers a gain or loss. The measure directly addresses the administrative burden created by HMRC’s 2022 guidance, which treated token deposits into DeFi as taxable disposals【3】.

Impact and market reaction

HMRC estimates the reform will affect roughly 700,000 UK crypto users, a sizable cohort given the country’s growing DeFi participation. By deferring CGT until an actual disposal, the rules align tax liability with economic reality, potentially reducing paperwork and improving clarity for participants. Analysts note that the change could boost confidence among UK DeFi investors, though the Office for Budget Responsibility has yet to certify the fiscal impact【2】. The policy follows a multi‑year consultation process that began with a 2022 call for evidence, continued with a 2023 consultation, and was summarised at Budget 2025【1】.

Industry response

DeFi builders have welcomed the shift. Aave founder Stani Kulechov praised the move as “the right direction,” arguing that earlier tax treatment would have imposed heavy reporting burdens on users【3】. The reform also signals HMRC’s broader intent to integrate crypto assets into existing financial frameworks, as evidenced by parallel plans to tax stablecoins more like fiat currency【3】.

What to watch

• April 6 2027 – Implementation date; market participants will need to adjust reporting practices.
• Policy costings – Final fiscal impact to be reviewed by the Office for Budget Responsibility at a future budget event.
• Further DeFi guidance – HMRC may issue additional rules on stablecoins and other emerging crypto services.

The UK’s no‑gain‑no‑loss approach removes an immediate tax hurdle for DeFi participants, but the real test will be whether the deferred liability translates into higher on‑chain activity and broader adoption of crypto lending and liquidity provision.