The 2026 UK Budget included several measures affecting crypto investors. Here’s a summary and what they mean for you.
Key Changes
| Change | Details |
|---|---|
| CGT allowance | Remains at £3,000 |
| CGT rates | Remain at 10% / 20% |
| Trading allowance | Remains at £1,000 |
| DeFi tax rules | Codified into legislation |
| CARF implementation | OECD framework enacted |
| Staking guidance | Confirmed in legislation |
CGT Allowance (No Change)
| Year | Allowance |
|---|---|
| 2025-26 | £3,000 |
| 2026-27 | £3,000 (confirmed) |
| 2027-28 | Expected to remain £3,000 |
The allowance was halved twice in 2023-24. No further changes announced.
DeFi Legislation
The Budget confirmed legislation codifying HMRC’s DeFi guidance:
| Aspect | Legislation |
|---|---|
| Deposits into pools | Not a disposal |
| Withdrawals | Not a disposal (if same tokens) |
| Lending and staking | Income treatment confirmed |
| Effective date | April 2026 |
This provides legal certainty for DeFi users.
OECD CARF Implementation
From 2026, the UK will receive data from:
| Source | What’s Shared |
|---|---|
| UK exchanges | Transaction data (already active) |
| EU exchanges | Under CARF from 2026 |
| Other signatory countries | From 2027 |
Staking Tax Legislation
Staking rewards are now explicitly legislated as:
| Activity | Tax Treatment |
|---|---|
| Staking rewards received | Income at market value |
| Solo staking | Income |
| Pool staking | Income |
| Exchange staking | Income |
What Wasn’t Announced
| Possible Change | Status |
|---|---|
| CGT allowance reduction | Not happening |
| New crypto-specific tax | Not announced |
| VAT on crypto | No change |
| Windfall tax on crypto gains | Speculation only |
Planning Implications
| Action | Why |
|---|---|
| Use your £3,000 CGT allowance | It’s not changing |
| DeFi transactions have clarity | No ambiguity on deposits/withdrawals |
| CARF means more data sharing | Report accurately |
| Stake with confidence | Treatment is now law |
Bottom Line
The 2026 Budget confirmed CGT allowance stays at £3,000, codified DeFi tax rules, and enacted CARF for international exchange data sharing. No negative surprises for crypto investors. Use your allowance, report accurately (data sharing is expanding), and take advantage of the new legal clarity on DeFi. Keep records as before — nothing fundamental changed.
What the Budget means for crypto holders
The 2026 UK Budget brought more clarity than change for crypto investors. Here are the key points:
- CGT allowance stays at £3,000 — no further reduction was announced, so use your full annual exempt amount before realising gains above the threshold.
- DeFi tax rules are now law — the Budget codified HMRC’s guidance into legislation effective April 2026, giving legal certainty on deposits, withdrawals, lending, and staking.
- CARF means international data sharing — the OECD framework is now enacted, so exchanges across dozens of countries automatically report UK-resident user data to HMRC.
- Staking rewards are income under legislation — this confirms HMRC’s existing position and removes any ambiguity about how staking is taxed.
- No negative surprises — no new crypto tax, no windfall tax, and no CGT allowance reduction. The Budget was broadly neutral for crypto holders.
Budget measures relevant to crypto investors
The most significant concrete change in the Budget is the codification of DeFi tax rules into legislation. Previously, HMRC’s Cryptoassets Manual provided guidance — useful, but not statutory. From April 2026, the rules on deposits, withdrawals, lending, and staking have the force of law. For individual investors this means fewer grey areas: if you deposit into a pool and receive the same tokens back, that is definitively not a disposal. If you earn staking rewards, that is definitively income. The practical impact is that you can plan DeFi activity with confidence rather than hedging against potential reinterpretation.
The CARF implementation is the second major development. The UK was already receiving data from domestic exchanges, but CARF extends this to international platforms — EU exchanges from 2026, and other signatory countries from 2027. For crypto investors who have used offshore exchanges without reporting the activity, this significantly increases the likelihood of HMRC identifying discrepancies. The planning implication is straightforward: report accurately now, because the data HMRC holds is about to become far more comprehensive.
UK-specific planning steps
For UK crypto investors, the Budget creates a clear to-do list. First, use your £3,000 CGT annual exempt amount each tax year by realising gains up to that threshold — it is a use-it-or-lose-it allowance with no carry-forward. Second, if you are active in DeFi, ensure your records capture every deposit, reward, and withdrawal with dates and pound values at the time of each transaction. The new legislation means HMRC will expect compliance with rules that are now explicit rather than guidance-based. Third, review your exchange usage in light of CARF: if you hold assets on platforms in EU countries or other signatory jurisdictions, those exchanges will report your activity automatically from 2026. Make sure your Self Assessment reflects what they will report.
Nothing in this Budget requires panic or dramatic portfolio changes. The best response is to tighten your record-keeping, use your allowances fully, and take advantage of the legal clarity that DeFi users now have for the first time.