Payment Institution vs EMI in the UK: Regulatory Differences, Capital, and Which Licence to Seek

The distinction between a UK Payment Institution and an Electronic Money Institution is not merely technical — it determines what the firm can do, what capital it must hold, how client funds are protected, and what regulatory framework governs its operations. Many fintech founders and businesses entering the UK payments space conflate the two or assume the cheaper option is always preferable. Understanding the substantive differences enables a more informed licence selection decision, which is genuinely consequential: applying for the wrong licence type wastes time, regulatory capital, and FCA application fees, and may require a variation of permission later at additional cost.

The Regulatory Frameworks

Payment Institutions are authorised under the Payment Services Regulations 2017 (PSRs 2017), which implement the revised Payment Services Directive (PSD2) in the UK (as retained and amended post-Brexit). Electronic Money Institutions are authorised under the Electronic Money Regulations 2011 (EMRs 2011), which implement the Second Electronic Money Directive (2EMD). Both regimes are supervised by the FCA. Both involve regulated firms subject to FCA authorisation, ongoing supervision, SM&CR, and AML obligations under MLR 2017. The key substantive differences lie in the permitted activities, the e-money issuance question, and the capital and safeguarding requirements.

Permitted Activities: The Core Difference

A Payment Institution is authorised to provide payment services — money remittance, payment initiation, account information, acquiring, execution of payment transactions — but it cannot issue e-money. This means a PI cannot hold client funds in a stored-value account that the client can draw on as needed. A PI receives funds for the purpose of executing a specific payment transaction and must transmit those funds promptly. It cannot operate a float — receiving funds that are held by the PI on behalf of the client and used for multiple subsequent transactions.

An EMI can issue e-money — monetary value stored in an account that the client can use for multiple transactions over time. This enables EMIs to offer business accounts where clients maintain a balance, make multiple payments from that balance, receive incoming payments to the balance, and access it like a bank account (without the credit product dimension). For businesses that want to offer a stored-value wallet, a prepaid card programme, or a multi-currency business account product, an EMI licence is required. A PI cannot offer these products.

Capital Requirements

Initial and ongoing regulatory capital requirements differ between the two licence types, and within each type between the authorised and small (registered) versions. For a full Authorised Payment Institution, the minimum initial capital ranges from £20,000 to £125,000 depending on the payment services being provided (Schedule 3 PSRs 2017). For a full Authorised EMI, the minimum initial capital is €350,000 (approximately £300,000). Small Payment Institutions and Small EMIs have lower thresholds but operate under activity volume caps (£3 million per month average monthly payment transactions for small PIs) and have more limited capabilities.

Ongoing capital must be maintained at the higher of the initial capital requirement or the amount calculated under the relevant method (Method A, B, or C under the respective regulations). For businesses with significant payment volumes, ongoing capital calculations under the percentage-of-payment-volume methods can produce ongoing capital requirements substantially above the initial minimum. The capital planning requirement — maintaining adequate capital as the business scales — is an important commercial consideration in the licence selection decision.

Safeguarding

Both PIs and EMIs that hold client funds are required to safeguard those funds. Under PSRs 2017 Schedule 2, PIs that hold client funds overnight must safeguard using segregation or insurance. Under EMRs 2011 Regulation 21, EMIs must safeguard the entire e-money float. The safeguarding obligation for EMIs is generally more extensive than for PIs because EMIs hold client balances on an ongoing basis rather than transiently for specific transactions. This creates a larger safeguarding compliance burden for EMIs, including daily reconciliation requirements, designated safeguarding account management, and the annual safeguarding audit requirement.

Which Licence Is Right?

The decision rule is reasonably straightforward: if the business model requires holding client money in a stored-value account that the client controls and uses over time — a business account, a multi-currency wallet, a prepaid product — an EMI licence is required. If the business model involves transmitting specific payments or providing payment initiation without a stored-value component, a PI licence may be sufficient. Most businesses building a specialist banking alternative or a multi-product payment infrastructure will need an EMI licence. PIs are more appropriate for remittance businesses, payment gateways, or payment initiation services that do not hold client funds on an ongoing basis.