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

The UK government has announced plans to defer capital gains tax (CGT) on crypto deposited into DeFi lending protocols and liquidity pools. Under current rules, simply moving tokens into a protocol can trigger a taxable disposal, even when you never actually sell. This change would remove that immediate charge, making the UK a noticeably friendlier place to participate in decentralised finance. If you've been avoiding DeFi because of the tax headache, this is the development to watch.

What the Current Rules Actually Say

Right now, HMRC treats most DeFi interactions as a disposal of the underlying asset. When you deposit ETH into a liquidity pool or lend tokens through a DeFi protocol, HMRC's position is that you have disposed of those tokens at their market value on the day of deposit. That creates a CGT event immediately, even though you haven't received any cash and you fully intend to withdraw the same (or equivalent) tokens later.

Why This Creates a Problem

The mismatch between economic reality and tax treatment is stark. You deposit tokens, you get a receipt token or LP token in return, and HMRC considers the original tokens gone. If your ETH has appreciated since you acquired it, you owe CGT on that gain right now, before you've locked in any profit. For anyone with a sizeable unrealised gain, that's a real cash-flow problem: you'd need to sell some crypto just to cover the tax on a transaction that wasn't a sale.

This position has deterred many UK holders from engaging with DeFi at all. It's also created a compliance mess, since every deposit and withdrawal technically needs to be tracked, valued, and reported. Knowing how to report crypto income under Making Tax Digital becomes even more pressing when each protocol interaction is a separate taxable event.

What the Deferral Would Change

The proposed reform would treat a deposit into a DeFi lending protocol or liquidity pool as a non-disposal event for CGT purposes. In practical terms, the clock on any gain or loss would not start ticking at the point of deposit. Instead, CGT would only crystallise when you actually withdraw your tokens and dispose of them in a meaningful economic sense, such as selling them for fiat or exchanging them for a different asset.

The Core Mechanics of Deferral

Deferral does not mean tax forgiveness. Your original cost basis carries forward. If you acquired ETH at £1,000 and it's worth £3,000 when you deposit it into a pool, the £2,000 gain doesn't disappear. It defers. When you eventually withdraw and sell, the £2,000 gain (plus any further movement during the period in the pool) becomes taxable at that later point. The key difference is timing and cash flow: you pay when you realise a genuine economic exit, not at the moment of a technical transfer.

Rewards and Yield: A Separate Question

It's important to be clear about what the deferral does not cover. Any income generated while your tokens are deployed, whether that's trading fees credited to your liquidity position, lending interest, or governance token rewards, remains taxable as it arises. The deferral applies to the CGT treatment of the principal deposit, not to the yield. HMRC's longstanding view is that crypto rewards received as income are taxable at their sterling value on the date of receipt, and that position is not expected to change. So the question of whether staking is taxable as income in the UK stays as it is: yes, it generally is, and you need to track each reward payment.

Who Is Affected and How

This change is targeted squarely at UK residents who deposit crypto into DeFi protocols: anyone providing liquidity on decentralised exchanges, lending tokens on borrowing platforms, or using yield aggregators that deploy funds into pools. It would also extend to people whose tokens are placed into staking contracts that function similarly to lending arrangements.

Individual Holders

If you're an individual UK taxpayer who participates in DeFi, the deferral means you won't face an immediate CGT liability simply for depositing tokens into a protocol. Your annual CGT allowance, currently reduced to £3,000 per tax year, doesn't get eaten up by paper transactions. That's a meaningful improvement for active DeFi users.

You still need to keep meticulous records. Because your cost basis carries forward, you need to know exactly what you paid for each token, when you acquired it, and what the market value was at the time of deposit (even if that doesn't trigger a CGT event, it may still be relevant to the eventual calculation). Good record-keeping is non-negotiable. If you're calculating crypto taxes manually across multiple protocols, the complexity is significant, and tools that help you track cost basis across wallets and protocols will remain essential.

DeFi Participants with Impermanent Loss

One of the more nuanced areas is impermanent loss. When you withdraw from a liquidity pool, the ratio of tokens you receive may differ from what you deposited, depending on how prices have moved. Under a deferral regime, the gain or loss calculation at withdrawal will need to account for the tokens you actually receive, not what you originally deposited. The mechanics of how HMRC will handle impermanent loss under the new rules has not yet been fully clarified, and this is an area to watch closely as draft legislation emerges.

Timing and Legislative Status

As of the article's publication date of 14 July 2026, this is a stated government intention rather than enacted law. The UK government has signalled its plan, but draft legislation, HMRC guidance, and a confirmed implementation date are still to follow. That means the current tax treatment remains in force until Parliament legislates otherwise.

UK crypto holders should not assume the deferral applies now. Any DeFi deposits made today are still subject to existing HMRC rules, which treat them as disposals. It would be prudent to consult an adviser before changing your DeFi strategy in anticipation of rules that have not yet come into effect. Understanding what HMRC's economic crime handbook means for your records is also worth your time, since compliance expectations around crypto documentation are tightening regardless of this reform.

What You Should Do Right Now

Waiting for the legislation to pass before getting your records in order is a mistake. Here's what makes sense to do in the interim.

Practical Steps for DeFi Users

First, compile a complete history of every DeFi deposit and withdrawal you've already made. For each transaction, you need the date, the tokens involved, the sterling value at the time, and the cost basis of the tokens you deposited. This is the information that will feed into your CGT calculation both under the current rules (for anything already done) and under the new rules (for the eventual withdrawal calculation when deferral applies).

Second, make sure you're separately tracking all yield and reward income. Each reward payment, whether it's an LP fee, a lending return, or a governance token distribution, needs a date and a sterling value at the date of receipt. These are not deferred; they are taxable as income in the tax year you receive them.

Third, if you have existing DeFi positions that triggered CGT events under the current rules, those are already locked in. The new deferral won't retroactively unwind past disposals. Your focus should be on clean records going forward and on ensuring past returns were filed correctly.

Finally, keep an eye on HMRC's official publications and GOV.UK for the release of draft legislation and updated cryptoasset guidance. The government's cryptoasset manual is the authoritative source for how HMRC interprets these rules, and it will need to be updated to reflect the deferral once it's enacted.

Frequently Asked Questions

Does the deferral mean I won't pay CGT on DeFi at all?

No. The deferral delays when CGT is due, not whether it's due. Your gain is calculated and taxed when you make a genuine disposal, such as selling or exchanging the withdrawn tokens. The cost basis from your original acquisition carries forward.

Is staking taxable in the UK under these new rules?

The deferral is specifically aimed at CGT on deposits into lending and liquidity pool arrangements. Staking rewards received as income are generally still taxable as income in the year you receive them, at the sterling value on the date of receipt. This reform doesn't change that income tax treatment.

Can I rely on this now and stop reporting DeFi deposits as disposals?

No. Until Parliament passes the legislation and HMRC updates its official guidance, the existing rules remain in force. DeFi deposits made today are still treated as disposals under current HMRC policy. Don't change your reporting approach until the law actually changes.

How will impermanent loss be treated under the deferral?

This hasn't been fully clarified yet. When you withdraw from a pool, the tokens you receive may differ in quantity from what you deposited. How HMRC will calculate the gain or loss at that point, especially where the token mix has changed, is one of the technical details that should be addressed in the draft legislation and accompanying guidance.

How is crypto taxed in the UK more broadly?

Outside of DeFi-specific rules, HMRC treats cryptoassets as capital assets for most individuals. Buying and selling triggers CGT; receiving crypto as income (from mining, staking rewards, airdrops, or employment) is generally subject to income tax. The annual CGT exempt amount is £3,000. The DeFi deferral is a targeted carve-out from the disposal rules, not a wholesale change to how crypto is taxed in the UK.

Source: Decrypt