On 16 July 2026, HMRC published draft legislation introducing specific rules for the taxation of stablecoins, as part of the government's Legislation Day package. The new rules take effect from 6 April 2027 — giving businesses and individuals holding or transacting in crypto assets approximately eight months to review their position and ensure their record-keeping and tax treatment are correct.
The publication of specific legislation for stablecoins is a significant step in the UK's broader effort to bring crypto assets within a clear and consistent tax framework. For business owners and individuals who hold, transact in, or accept crypto as part of their activities, this article explains what is changing, what was already the law, and what you should be doing now.
What Are Stablecoins and Why Are They Different?
Stablecoins are a category of crypto asset whose value is designed to remain stable relative to a reference asset — typically a national currency like sterling or US dollars, though some are pegged to commodities such as gold. Examples include USDT, USDC, and DAI, all of which are pegged to the US dollar, and newer sterling-denominated stablecoins issued by regulated UK payment firms following the Financial Services and Markets Act 2023's provisions for regulated stablecoins.
The reason stablecoins have attracted separate legislative attention is that their tax treatment has been genuinely ambiguous. On one hand, they behave more like cash equivalents than speculative investments — their value does not fluctuate significantly and they are increasingly used for transactional purposes, not just as store of value. On the other hand, they are technically crypto assets and have historically been treated as such for tax purposes, meaning that every transaction — every purchase, sale, payment, or exchange — could in theory give rise to a chargeable gain or allowable loss.
For businesses that accept stablecoin payments or use stablecoins for treasury management, the current regime creates an administrative burden disproportionate to the actual economic risk. If you receive a payment in USDT, hold it for three days, and convert it to sterling, the exchange rate movement in that three-day period — typically a fraction of a cent — theoretically creates a disposal for CGT purposes. Tracking this across hundreds of transactions is neither practical nor proportionate.
What the Draft Legislation Changes
The draft legislation introduces a new tax treatment for regulated stablecoins used in transactional contexts. The specific detail will be confirmed when the legislation is finalised, but the direction is clear: regulated sterling stablecoins issued by UK-authorised firms and used for payment or settlement purposes will be treated more like currency than like investment assets for tax purposes.
This means that the disposal of such stablecoins — converting them to sterling or using them to make payments — will not automatically give rise to a chargeable gain or loss. The same treatment that currently applies to foreign currency transactions in a business context would apply to regulated sterling stablecoin transactions.
The key qualifier is regulated. This treatment will apply specifically to stablecoins issued by firms authorised under the UK's regulatory framework for stablecoins, which itself only came fully into force in 2025 and 2026. Unregulated stablecoins — and there are many — continue to be treated as crypto assets under the existing rules. The distinction matters because many of the most widely used stablecoins globally, including USDT and USDC, are not yet UK-regulated, and the new treatment may not apply to them until or unless their issuers seek UK authorisation.
What Has Not Changed: The Existing Crypto Tax Rules
The new legislation applies specifically to regulated stablecoins. For all other crypto assets — Bitcoin, Ethereum, NFTs, utility tokens, governance tokens, and unregulated stablecoins — the existing HMRC guidance and rules continue to apply in full.
Under the existing rules, every disposal of a crypto asset is a chargeable event for Capital Gains Tax purposes. A disposal occurs when you sell crypto for cash, exchange one crypto for another, use crypto to pay for goods or services, or give crypto away as a gift. The gain or loss is calculated by comparing the disposal proceeds against the acquisition cost, using a pooling method similar to the one that applies to shares.
For businesses that receive crypto as payment for services or goods, the value of the crypto at the time of receipt is treated as income and is subject to Income Tax or Corporation Tax in the same way as any other trading income. Any subsequent gain or loss on the disposal of that crypto is then subject to CGT rules.
The record-keeping requirements are comprehensive. HMRC expects taxpayers to record the date of every acquisition and disposal, the sterling value at the date of each transaction, the number of units acquired or disposed of, and the running pool cost. For individuals or businesses with high transaction volumes, this requires dedicated crypto accounting software — basic spreadsheets are rarely adequate.
What Business Owners Need to Check Before April 2027
If your business accepts crypto payments, holds crypto assets, or has directors or shareholders who hold significant personal crypto positions, there are several areas worth reviewing before the April 2027 rules take effect.
Review whether any crypto assets you currently hold would qualify for the new stablecoin treatment from April 2027. If you hold UK-regulated stablecoins, the new rules may simplify your reporting obligations significantly from next April. If you hold mainly unregulated assets, the existing rules continue unchanged and you need robust records.
Check that your crypto transaction records are complete and accurate for the current and prior tax years. HMRC has been actively opening compliance checks on taxpayers it believes hold crypto assets but have not reported them, using data obtained from UK exchanges including Coinbase UK, Kraken, and Binance UK. If you have unreported crypto gains from prior years, a voluntary disclosure now — before HMRC contacts you — attracts significantly lower penalties than a prompted disclosure.
Consider whether the Autumn Budget on 28 October 2026 might bring further crypto tax announcements. The Burnham government has made no specific pre-Budget announcements on crypto, but CGT rate changes — if they materialise — would apply to crypto disposals in the same way as other asset disposals. Investors holding significant unrealised gains in crypto assets who are already considering crystallising some of those gains should factor in both the existing rules and the Budget risk.
If you use crypto for business-to-business payments or treasury management, the April 2027 stablecoin rules may create a genuine operational advantage. Switching to a UK-regulated sterling stablecoin for transactional purposes — rather than unregulated dollar-pegged equivalents — could simplify your tax accounting significantly once the new rules are in force. Plan this transition before April 2027, not after.
The Broader Regulatory Context
The stablecoin tax rules do not exist in isolation. They are part of a broader UK regulatory framework for crypto assets that has been taking shape since the passage of the Financial Services and Markets Act 2023. The Financial Conduct Authority has been developing its authorisation regime for crypto asset businesses, including stablecoin issuers, throughout 2025 and 2026. HMRC's new tax rules are designed to align with that regulatory framework — using FCA authorisation as the trigger for the more favourable tax treatment.
For UK-based crypto businesses — exchanges, wallet providers, payment firms, and stablecoin issuers — the combination of FCA regulation and aligned HMRC tax treatment creates a more predictable operating environment than has existed at any point since crypto emerged as an asset class. Whether that translates into increased UK crypto business activity remains to be seen, but the regulatory direction is clearly towards integration rather than exclusion.
CoreAcc Accountants will publish a full update on the stablecoin tax rules as soon as the final legislation is confirmed, and will cover any Budget announcements affecting crypto taxation in our 28 October Budget analysis.
Do you hold crypto assets personally or in your business, or have unreported crypto gains from prior years? Contact CoreAcc Accountants for a confidential review.
CoreAcc Accountants is an ACCA-accredited firm of Chartered Certified Accountants. This article was published on 25 August 2026 and reflects draft legislation published on 16 July 2026 and HMRC guidance in force at that date. The final legislation may differ from the draft. It does not constitute professional advice. Always seek specific advice for your individual circumstances.
