DeFi & NFT Tax in the UK: A Plain-English Guide

DeFi and NFTs are where UK crypto tax gets genuinely hard. The same transaction can be income or capital depending on the fine detail, and a single 'click to confirm' can hide several taxable events. This is a plain-English guide to the general principles HMRC sets out — not personal tax advice.

Read this first

Why DeFi and NFTs are the hard part

Most people get their heads around the basics fairly quickly: you buy crypto, you sell it later, and any profit can fall under Capital Gains Tax. DeFi and NFTs break that simple picture. A single action in a DeFi app — supplying liquidity, wrapping a token, bridging to another chain — can trigger one or more taxable events that aren't obvious from the wallet screen. If you're new to the territory, our explainers on what DeFi is and what an NFT is set the scene.

The core difficulty is that HMRC does not have a single, simple rule that says 'all DeFi is income' or 'all DeFi is capital'. Instead, the treatment depends on the nature of the return and what is actually happening at a transaction level. That means the labels an app uses ('earn', 'yield', 'rewards') don't decide the tax — the underlying substance does.

DeFi: income or capital gain?

HMRC's guidance treats DeFi returns (from lending and staking-style activity within protocols) as either income or a capital gain depending on the nature of the return. It points to factors such as whether the return is known up front or speculative, whether it's paid like interest over time, and the overall economic reality of the arrangement. There is no shortcut here — it genuinely is a case-by-case judgement.

Lending and 'earn' products

When you lend crypto through a protocol and receive a return, that return might be income (taxed when it arises) or capital (relevant when you later dispose of the asset). A separate question is whether transferring your tokens to the protocol is itself a disposal — HMRC's view is that this depends on whether you keep beneficial ownership of the tokens. If you don't, putting them in may be a disposal for Capital Gains Tax purposes, even though it doesn't feel like a 'sale'.

Liquidity pools and LP tokens

Adding to a liquidity pool often means handing over two tokens and receiving an LP token in return. Depending on the arrangement, that swap can be a disposal of the tokens you put in. The same can happen in reverse when you withdraw. This is one of the most common ways people accidentally rack up disposals they never recorded.

Because staking and similar reward mechanics overlap heavily with DeFi, and because every protocol is structured differently, the table above lists *possible* outcomes only. The right answer for your specific transactions depends on the detail. For the underlying mechanics, see our explainer on what staking is.

Wrapping, bridging and 'invisible' disposals

Two actions catch people out repeatedly because they feel like admin rather than trades:

• Wrapping — converting a token into a wrapped version so it works on a particular protocol. Depending on the facts, swapping token A for wrapped token A can be a disposal.
• Bridging — moving an asset from one blockchain to another. Again, whether this is a disposal depends on what's really happening to ownership, not on the fact you 'still have the same coin' in your head.

Remember that under HMRC's general approach, swapping one crypto for another is a disposal — you can owe Capital Gains Tax even though no pounds changed hands. We cover that core idea in more depth in do you pay tax swapping crypto in the UK. DeFi simply stacks lots of these swaps together, sometimes inside a single transaction.

NFTs: two disposals hiding in one purchase

NFTs are often bought with crypto, and that's where the surprise sits. Buying an NFT with crypto is a disposal of that crypto — you've effectively sold (say) the ETH you spent, so any gain on that ETH since you acquired it can be within Capital Gains Tax. Then, separately, selling the NFT later is a disposal of the NFT. One round trip can therefore involve gains to think about at both ends.

1. You buy an NFT using ETH — this is a disposal of your ETH, so work out the gain or loss on that ETH.
2. You hold the NFT — no disposal while you simply hold it.
3. You sell the NFT (for crypto or pounds) — this is a disposal of the NFT, so work out the gain or loss on the NFT.
4. If you bought it with crypto and sell for crypto, you may also be acquiring a new asset to track from that point.

For most people, NFT gains sit under Capital Gains Tax in the same way other crypto disposals do, and you'd follow the usual capital gains calculation approach including the pooling and matching rules. But NFTs can also raise harder questions — for example whether very frequent trading looks more like a trade (income) than investment, or how royalties received as a creator are taxed. Those are exactly the situations where professional advice earns its keep.

Records: the only thing that makes this survivable

The practical reality of DeFi and NFT tax is that you cannot reconstruct it from memory. Protocols generate dozens or hundreds of on-chain events, values move minute to minute, and the GBP value at the moment of each transaction matters. Good records are not optional admin — they're what stands between you and a guess at filing time.

• Wallet addresses and the protocols you've interacted with
• Date and time of each deposit, withdrawal, swap, wrap, bridge and claim
• The GBP value of each asset at the time of each event
• Any fees paid (gas and protocol fees), which can affect your figures
• NFT purchase price (in crypto and its GBP value), sale price, and any royalties

Because the volume is so high, most people in this area lean on tax software to pull transactions from chains and wallets and apply HMRC's pooling and matching rules automatically. We compare options in the best UK crypto tax software, and the general principles still trace back to the overview in crypto taxes in the UK. Whatever tool you use, sense-check the output — DeFi edge cases are exactly where automated tools can disagree.

Frequently asked questions