The new tax year is barely a day old and the government is already asking fundamental questions about how crypto fits into the UK tax system. This time, the target is stablecoins — and the implications could be significant for anyone using USDT, USDC, or their sterling equivalents.
On 26 March, HMRC published a call for evidence on the taxation of stablecoins. The consultation runs until 7 May 2026, and it’s not just a technical tidying-up exercise. The government is openly considering whether certain stablecoins should be treated as exempt assets for Capital Gains Tax purposes. If that happens, it would be the most significant change to UK crypto tax treatment since HMRC first published its cryptoasset guidance in 2019.
The Problem They’re Trying to Fix
Here’s the absurdity of the current rules. If you hold a sterling-denominated stablecoin — one that’s designed to always be worth £1 — every time you use it, you’ve technically made a “disposal” for CGT purposes. You need to record the acquisition cost, the disposal proceeds, and calculate any gain or loss. On a coin designed to never move in value.
The gain will almost certainly be zero. Or perhaps a fraction of a penny if the peg wobbled momentarily. But you still have to track it. And once your aggregate disposal proceeds from all assets exceed £50,000 in a tax year, you may need to report those transactions to HMRC regardless.
This isn’t a theoretical problem. Stablecoins are the plumbing of the crypto ecosystem. They’re used to move in and out of positions, to park funds between trades, to make cross-border payments. A moderately active crypto user might make hundreds of stablecoin transactions in a year. Each one is technically a disposal. Each one needs a record.
The government’s own call for evidence acknowledges this creates “administrative burdens for individuals and businesses.” That’s civil service understatement for “the current rules are unworkable.”
What’s Actually on the Table
The consultation floats several options, and they’re worth understanding because they signal where policy is heading:
For individuals (CGT):
- Exempt asset treatment. This is the big one. If certain stablecoins were classified as exempt assets, disposals wouldn’t be chargeable events at all. No tracking, no computation, no reporting. For sterling-denominated stablecoins where gains are negligible anyway, this would simply remove pointless paperwork.
- Reporting threshold. A lighter-touch option: keep stablecoins as chargeable assets but remove the self-assessment reporting requirement for transactions below a certain threshold.
The government explicitly asks whether non-sterling stablecoins (like USDT or USDC) should also benefit from any reforms. This is where it gets interesting. A dollar-denominated stablecoin will fluctuate against sterling due to exchange rate movements, so genuine gains and losses do arise. Exempting those is a bigger policy call.
For companies (Corporation Tax):
The government is considering bringing more stablecoin transactions within the scope of the loan relationship rules. This would mean treating certain stablecoins as money, or as a money debt, for corporation tax purposes. It’s a pragmatic approach — if a stablecoin behaves like money, tax it like money.
Interest-like returns:
Some stablecoins generate yield (think lending protocols, or staking returns on stablecoin deposits). The consultation asks whether these returns should be treated as interest for tax purposes, which would bring them within the existing framework rather than requiring bespoke rules.
Why This Matters Beyond Crypto
This consultation is significant for three reasons that go beyond the immediate stablecoin question.
First, it signals regulatory maturity. The UK’s new financial services regulatory regime for cryptoassets is expected to come into effect in late 2027, with the FCA finalising rules before the end of 2026. The concept of a “qualifying stablecoin” — one that’s properly backed and offers guaranteed redemption — is being baked into the regulatory framework. Aligning the tax rules is a logical next step. You don’t regulate something as a payment instrument and then tax it as a speculative asset.
Second, it’s part of a broader pattern. This call for evidence sits alongside the government’s earlier work on DeFi taxation (the “no gain, no loss” approach for crypto lending and staking) and the Crypto Asset Reporting Framework (CARF) that went live in January 2026. The direction of travel is clear: bring crypto into the mainstream tax and regulatory framework, reduce friction for compliant users, and tighten information-sharing to catch those who aren’t.
Third, the competitiveness angle is real. The consultation explicitly references the government’s Financial Services Growth and Competitiveness Strategy. Other jurisdictions are moving on stablecoin regulation — the EU’s MiCA framework is already live, Singapore has its own regime, and the US is debating stablecoin legislation. The UK needs tax rules that don’t actively discourage legitimate stablecoin use if it wants to attract digital asset businesses.
What CFOs and Finance Directors Should Do
If your business touches stablecoins — whether for payments, treasury management, or as part of a broader digital asset strategy — this consultation is worth engaging with. The deadline is 7 May 2026, and responses can be sent to digitalassets@hmrc.gov.uk.
More practically, here’s what to consider:
Review your current treatment. If your business holds or transacts in stablecoins, check how they’re being accounted for. Are stablecoin transactions being tracked as disposals? Are the record-keeping obligations being met? If you’re not tracking them at all, that’s a compliance gap you should close before the rules change, not after.
Watch the corporation tax angle. If stablecoins move into the loan relationship rules, the accounting and tax treatment for corporate holders could change materially. The computational rules, the matching rules, the hedging rules — they’re all different under loan relationships compared to chargeable gains. Talk to your tax adviser now about the potential impact.
Consider the DeFi interaction. If your business uses stablecoins in lending or liquidity protocols, the interaction between this consultation and the earlier DeFi proposals could be complex. The government has acknowledged this and is considering how the two sets of changes fit together, but you shouldn’t wait for them to figure it out.
The Bottom Line
The current tax treatment of stablecoins is a relic of a time when crypto was niche and stablecoins barely existed. The rules weren’t designed for a world where stablecoins process billions in daily volume and are being integrated into mainstream payment systems.
The government is right to ask these questions, and the direction of travel — treating stablecoins more like money and less like speculative assets — is sensible. Whether the consultation delivers meaningful reform or gets bogged down in definitional arguments about what counts as a “qualifying” stablecoin remains to be seen.
But for now, the window to influence the outcome is open. If you have views, use it.
Tanous Limited advises PE-backed businesses and portfolio companies on financial strategy, tax planning, and regulatory compliance. If your business needs guidance on digital asset tax treatment or the implications of these proposed changes, get in touch.