Game-Changer for UK Crypto: How New HMRC Rules Will Defer CGT on DeFi Lending 🇬🇧

Decentralised finance (DeFi) has long pushed the boundaries of traditional financial regulation, often leaving crypto investors trapped in messy, ill-fitting tax frameworks. For years, crypto holders in the UK who deposited tokens into lending platforms or automated market makers (AMMs) faced an frustrating tax reality: HM Revenue & Customs (HMRC) treated those deposits as taxable disposals. You could end up owing Capital Gains Tax (CGT) on paper gains without actually cashing out a single penny.

That dynamic is finally set to change. HMRC has published new policy guidance confirming that depositing cryptoassets into DeFi lending protocols and liquidity pools will no longer trigger immediate capital gains tax events. Instead, these transactions will be treated under a "no gain, no loss" framework, deferring tax obligations until you make a genuine economic sale or exit.

Why the Old Framework Created a Administrative Nightmare

Under guidance originally issued in 2022, HMRC viewed moving tokens into a DeFi protocol as a transfer of beneficial ownership. In plain terms, if you supplied Ethereum to a lending protocol like Aave or staked tokens into a liquidity pool to earn yield, HMRC viewed that transfer as selling your crypto for something new (like LP tokens or a-tokens).

This approach triggered a series of major headaches:

• Paper tax bills: Investors owed CGT on paper gains even though they hadn't converted their crypto to fiat currency or stablecoins.
• Complex tracking: Liquidity providers had to log every single deposit and withdrawal as a separate disposal, creating thousands of micro-tax events across a single financial year.
• Deterrent to innovation: UK investors were effectively penalised for engaging with modern Web3 infrastructure compared to traditional banking activities.

Acknowledging that these rules generated disproportionate administrative burdens without reflecting the true economic reality of the transactions, HMRC spent several years consulting with industry experts to reshape the framework.

What the New "No Gain, No Loss" Rules Actually Mean

Set to take effect from 6 April 2027 following amendments to the Taxation of Chargeable Gains Act 1992, the updated rules aim to bring tax policy into alignment with economic reality. HMRC estimates these changes will directly impact roughly 700,000 UK individuals and trustees who interact with crypto loans and liquidity pools.

Under the new policy, three core DeFi activities will receive "no gain, no loss" treatment:

1. Lending single assets: Depositing a single cryptoasset into a lending protocol will no longer be treated as a sale or exchange.
2. Borrowing against collateral: Posting crypto assets as collateral to borrow against them will be completely disregarded for capital gains tax purposes.
3. Supplying tokens to liquidity pools: Depositing tokens into automated market makers (AMMs) will no longer trigger an immediate tax bill.

Tax obligations will now only arise when you make a true economic disposal — such as selling the asset for fiat, swapping it for a completely different cryptoasset outside a pool, or exiting a liquidity pool with a different balance of tokens than you originally deposited due to impermanent loss or pool dynamics.

Industry Praise and the Road to April 2027

The update marks the culmination of a multi-year effort that began with a 2022 call for evidence, progressed through a 2023 consultation, and was formally outlined in the summary of responses at Budget 2025.

Prominent figures across the Web3 ecosystem have welcomed the reform. Stani Kulechov, founder of leading DeFi lending protocol Aave, highlighted the shift as a major victory for the sector, noting that it reflects the power of constructive feedback between industry builders and tax authorities. Kulechov pointed out that without this update, UK taxpayers would have been saddled with an unmanageable burden of paperwork and artificial tax liabilities.

While the measure's final costing still awaits formal certification by the Office for Budget Responsibility (OBR), the April 2027 implementation date gives UK crypto users, accountants, and protocol teams over a year to prepare. It signals a maturing approach from UK regulators, positioning the country toward a clearer, more predictable regulatory environment for decentralized finance.

To read the original news coverage and stay updated on the latest developments, visit the full report on Decrypt:

👉 UK to Defer Capital Gains Tax on DeFi Lending, Liquidity Pool Deposits

Disclaimer: This article is provided for informational purposes only, mistakes may be made, and it's not offered or intended to be used as legal, tax, investment, financial, or any other advice.