UK undercuts MiCA with 1% stablecoin rule

TLDR

The UK has set a 1% capital requirement for stablecoin issuers, lower than the EUs MiCA 2% rule, sharpening regulatory competition in Europe.

1. The FCAs final crypto framework cuts stablecoin own-funds to 1% of issued value, backed by a Bank of England regime focused on sterling stability.
2. MiCA keeps a stricter 2% capital buffer and tougher reserve rules, so UK-authorised stablecoins could be cheaper to run than MiCA-compliant EU ones.
3. Over 20262027, watch which issuers base core operations in London versus the EU, and how GBP and EUR stablecoin liquidity splits across venues.

Deep Dive

1. UK Rule: 1% Capital Plus Tight Reserves

On 30 Jun 2026, the UK Financial Conduct Authority (FCA) confirmed that stablecoin issuers regulated in the UK will need own funds equal to 1% of the total value of coins in circulation, down from a previously proposed 2% and below the EUs MiCA 2% standard. This is set out in the FCAs new crypto framework, which also introduces capital and stress-testing rules for exchanges and custodians, with full implementation from 25 Oct 2027.

In parallel, the Bank of England has published a sterling stablecoin regime that requires systemic GBP coins to be backed 1:1, with at least 30% of reserves at the central bank and the rest in short-term UK government bonds, plus an optional 5% excess buffer. Systemic issuers must meet both the Banks prudential rules and the FCAs 1% own-funds floor, creating a narrow bank style model for large payment stablecoins.

2. How This Undercuts MiCA

Under the EUs Markets in Crypto-Assets (MiCA) regulation, stablecoin issuers must hold own funds equal to the higher of a fixed minimum or 2% of average reserve assets, and e-money tokens face requirements such as keeping 60% of reserves in European bank deposits. That is a more conservative capital and funding mix than the UKs 1% rule plus BoE deposits and gilt ladders.

By cutting its key capital coefficient to 1% and explicitly branding the change as making the prudential framework more proportionate for larger issuers, the FCA has positioned London as a cheaper home base for regulated stablecoins compared with MiCA jurisdictions, especially for GBP-pegged coins. In practice, this could reduce issuance costs and potentially tighten spreads or fees if competition passes savings to users.

3. Timelines, Winners, And Risks

The UK regime is not live immediately. Pre-application meetings start in Jul 2026, authorisation runs from 30 Sep 2026 to 28 Feb 2027, and the rules bite in Oct 2027. Until then, UK oversight is mainly about promotions and anti-money laundering, while MiCAs July 2026 deadline already reshapes EU stablecoin markets.

Potential winners include GBP stablecoin issuers, UK-focused exchanges, and wallets that can monetise BoE-backed reserves and lower capital costs. The main risks are operational: issuers must manage interest-rate and redemption risks in gilt portfolios and maintain robust governance, or the lighter capital buffer could prove thin in stress scenarios despite high-quality reserves.

Conclusion

The UKs 1% stablecoin capital rule deliberately undercuts MiCAs 2% buffer while compensating with strict Bank of England reserve standards, turning London into a more cost-efficient but still tightly supervised hub for payment stablecoins. Over the next two years, the real impact will show up in where issuers seek licences and how GBP and EUR stablecoin liquidity splits between UK and EU venues, creating a new layer of regulatory geography that crypto traders and builders need to factor into their choice of rails and platforms.