An authorised payment institution (API) is a company authorised by the Financial Conduct Authority (FCA) under the Payment Services Regulations 2017 (the PSRs) to provide payment services in the UK. It is the full payments licence: there is no cap on transaction volumes and it can cover all eight regulated payment services, from money remittance to card acquiring and open banking.
An API moves money; it does not store value. It cannot issue electronic money (a prepaid balance held for the customer to spend later), which needs an electronic money institution (EMI) licence, and it cannot take deposits or lend on its own account, which are banking activities. An API may grant credit only where it is closely linked to a payment and repaid within 12 months.
The UK has four main routes for payment firms. Choosing the right one at the start avoids a second application later. Our comparison of the API, SPI, RAISP and EMI routes sets out the choice in more detail.
| Route | What it allows | Initial capital |
|---|---|---|
| Authorised payment institution (API) | All eight payment services, no volume cap | €20,000, €50,000 or €125,000 |
| Small payment institution (SPI) | Payment services up to an average of €3 million a month; no payment initiation or account information | None |
| Registered account information service provider (RAISP) | Account information services only | None (insurance required) |
| Authorised electronic money institution (EMI) | Issuing e-money plus payment services | €350,000 |
A firm needs to be authorised or registered before it provides a payment service in the UK as a regular business. Providing payment services without authorisation is a criminal offence under the PSRs, so a firm cannot trade while its application is assessed. It can build its product, hire its team and open bank relationships in the meantime.
The API is the right route when any of the following applies:
Some activities fall outside the PSRs altogether. The main exclusions are the limited network exclusion (for example, a store card usable only in one retailer's shops), the commercial agent exclusion and the electronic communications exclusion. A firm relying on the limited network or electronic communications exclusion must notify the FCA once it passes the thresholds in the regulations.
A foreign group can own a UK API. The UK company must be a genuine UK business, with its head office and registered office in the UK, real decision-making in the UK, and directors who run the regulated business day to day.
Schedule 1 of the PSRs lists eight payment services, labelled (a) to (h). The application names the exact services the firm will provide. The FCA expects every permission to be supported by the business plan, the flow of funds and the controls, so a firm should request only what it will use in its first two to three years.
The services chosen set the initial capital, the own funds method, whether safeguarding applies and the depth of the FCA's review. A remittance business with two corridors and a card acquirer serving thousands of merchants are both APIs, but they are assessed very differently.
Initial capital is the minimum paid-up capital the firm must hold at authorisation. The PSRs set it in euros in Schedule 3. Where a firm requests services in more than one band, the highest amount applies.
| Services requested | Schedule 1 reference | Initial capital |
|---|---|---|
| Money remittance only | (f) | €20,000 |
| Payment initiation services | (g) | €50,000 |
| Payment accounts, execution, card issuing or acquiring | (a) to (e) | €125,000 |
| Account information services only | (h) | None (registered as a RAISP) |
Capital must be fully paid up and held in a UK bank account in the firm's name before authorisation. Firms hold the sterling equivalent, with a margin for exchange rate movements. Firms providing payment initiation or account information services must also hold professional indemnity insurance or a comparable guarantee, sized under the European Banking Authority guidelines the FCA applies.
After authorisation, an API must hold own funds (capital that absorbs losses) at all times equal to the higher of its initial capital and a calculated requirement. The FCA tells each firm which of three methods to use and may direct an amount up to 20% higher or lower than the result. Firms that provide only payment initiation or account information services hold their initial capital only and do not run the calculation.
| Method | How it is calculated | Typical user |
|---|---|---|
| Method A | 10% of the previous year's fixed overheads | Early-stage firms with modest volumes |
| Method B | A sliding percentage of monthly payment volume (4% of the first €5 million, falling to 0.25%), multiplied by a scaling factor | Established firms with steady volumes |
| Method C | A sliding percentage of relevant income (10% of the first €2.5 million, falling to 1.5%), multiplied by a scaling factor | Firms whose income is a better measure of risk than volume |
The scaling factor is 0.5 for a firm authorised only for money remittance and 1 for a firm providing any of services (a) to (e). Under Method C the result cannot fall below 80% of the average relevant income indicator over the previous three years.
A card acquirer processes €60 million of payments in its first full year. Its monthly payment volume is €5 million, so Method B gives 4% of €5 million, or €200,000, multiplied by a scaling factor of 1. Its own funds requirement is €200,000, because that is higher than its €125,000 initial capital. A remittance-only firm with the same volume would apply a scaling factor of 0.5, giving €100,000. The financial forecasts should show own funds rising with volumes in this way, with headroom above the requirement.
Safeguarding protects customers' money if a payment firm becomes insolvent. An API that receives funds for payment transactions must keep them separate from its own money, either in a segregated safeguarding account at a bank or by covering them with an insurance policy or bank guarantee. Firms providing only payment initiation or account information services do not hold customer funds and are outside the regime.
The FCA's supplementary safeguarding rules, set out in policy statement PS25/12 and the new CASS 15 chapter of the FCA Handbook, have applied since 7 May 2026. Every applicant now shows CASS 15 compliance in its application. The main requirements are:
The safeguarding account is often the longest lead item in the project, so banks should be approached early. Our guide to CASS 15 covers each rule in detail.
The FCA must be satisfied that the firm is run by people of good repute with the knowledge and experience to manage a payments business. Each director, and each person responsible for managing the payment services, completes the PSD Individual form on the FCA's Connect system. Senior managers and certification regime approvals (SMF functions) do not apply to payment institutions; the FCA assesses these individuals through the PSD Individual form instead.
Anyone who will hold 10% or more of the shares or voting rights, directly or indirectly, is a controller and is assessed for fitness and propriety, including the source of the funds they invest. Directors and people with significant control must also have verified their identity with Companies House, which has been mandatory for new appointments since 18 November 2025.
Outsourcing parts of compliance or operations is acceptable, but responsibility stays with the API. The board must understand and oversee what is outsourced, and the UK entity must keep enough knowledge to challenge its providers.
Every API is supervised for anti-money laundering under the Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017 (the MLRs). The FCA expects a working framework at authorisation, tailored to the firm's customers, countries, products and volumes. A framework copied from a template is identified quickly in review.
Payment firms rely on third parties for onboarding, ledgers, payment execution, screening, cloud hosting and customer support. That is acceptable, provided the API shows how it selected each provider, how it monitors them and how it would exit the arrangement. Contracts for important functions should give the FCA and the firm's auditors access rights.
The Consumer Duty has applied since 31 July 2023 to firms serving retail customers, including small businesses in some cases. It requires the firm to deliver good outcomes on products, price and value, customer understanding and customer support, and the application should show how this is built into the product. A firm serving only larger corporate customers should record why it is outside scope.
APIs must handle complaints under the FCA's dispute resolution rules (DISP), respond within the payment services deadlines, and refer customers to the Financial Ombudsman Service. New complaints reporting rules from PS25/19 apply from 1 January 2027, with the first reporting period running to 30 June 2027.
Firms that send Faster Payments are part of the mandatory reimbursement scheme for authorised push payment (APP) fraud, where a customer is tricked into sending money to a fraudster. It has applied since 7 October 2024, with the cost shared equally between the sending and receiving firm and a maximum reimbursement of £85,000 per claim.
The FCA application fee is paid by card through Connect when the application is submitted. It is non-refundable, and an application submitted without the correct fee is rejected without assessment. The figures below are from the FCA's application fees page, last updated on 13 July 2026.
| Application | FCA fee category | Fee |
|---|---|---|
| API for services (f) to (h): remittance, payment initiation, account information | Category 4 | £2,820 |
| API for services (a) to (e): accounts, execution, issuing, acquiring | Category 5 | £5,640 |
| Small payment institution or RAISP registration | Category 3 | £1,130 |
| Authorised EMI | Category 5 | £5,640 |
| Variation adding payment services | Half the relevant category fee | £1,410 or £565 |
The application fee is a small part of the total. The real budget covers initial capital and own funds, the people above, safeguarding and operating accounts, transaction monitoring and screening systems, professional indemnity insurance where required, the safeguarding audit and annual accounts. After authorisation the firm also pays annual FCA periodic fees and the Financial Ombudsman Service levy, which the FCA sets each year. Our guide to what an FCA PI or EMI licence costs in 2026 breaks the budget down.
The application is made through the FCA's Connect system. The FCA allocates a case officer within a maximum of 20 working days and rejects, without assessing it, any submission that leaves questions unanswered or relies on generic template policies.
The PSRs require the FCA to decide a complete application within 3 months of receiving it, and any application within 12 months. In 2025/26 the FCA determined 93.5% of payment services authorisation applications within these statutory deadlines, according to its published operating service metrics.
In practice the clock starts once the application is complete, and the FCA's questions usually arrive in rounds. The firm plans API authorisations at 6 to 8 months from submission, with 4 to 8 weeks of preparation before that. The single largest factor within the applicant's control is how complete and consistent the pack is on the day it is submitted.
| Stage | Typical duration | Source |
|---|---|---|
| Preparation of the application pack | 4 to 8 weeks | Firm planning figure |
| Case officer allocated | Up to 20 working days | FCA published timeframe |
| Decision on a complete application | Within 3 months | PSRs 2017, regulation 9 |
| Submission to authorisation | 6 to 8 months | Firm planning figure |
Applications that move quickly share the same features. The FCA looks for a settled business model, documents that describe the same business throughout, and people who can explain it in interview.
Where the FCA has material concerns it usually invites the firm to withdraw rather than issuing a refusal. A firm that withdraws can reapply once the points raised are addressed.
Acquiring an authorised payment institution can be quicker than a new application in some cases, but the buyer acquires a regulated company, not a licence that can be detached and moved. Anyone acquiring 10% or more of an API needs the FCA's approval before completion through a change in control application, which the FCA assesses within up to 60 working days once complete.
The buyer should review the target's safeguarding, financial crime controls, complaints, regulatory returns, capital position and any open supervisory matters, and check that its permissions fit the new business model. A change to the model after acquisition may itself need a variation of permission.
Authorisation is the start of supervision. The FCA expects the controls described in the application to be running from day one and reviews them through regulatory returns, information requests and, where needed, a skilled person review. The main recurring obligations are set out below; our guide to FCA compliance for UK payment institutions covers each one.
| Obligation | Frequency |
|---|---|
| Safeguarding reconciliations | Each reconciliation day |
| Monthly safeguarding return | Monthly, within 15 business days |
| Payment fraud return (REP017) | Every six months |
| Operational and security risk report (REP018) | At least annually |
| Capital adequacy and annual financial returns | Annually |
| Safeguarding audit | Annually, unless exempt |
| Own funds above the requirement | At all times |
| Notify changes to directors, controllers, services or agents | Before or as the change happens |
An API can also appoint agents to provide payment services on its behalf, once each agent is registered with the FCA, and can later add permissions through a variation.
UK payment institutions lost their EU passporting rights on 31 December 2020. A UK API can serve customers abroad only where the local law of each country allows it, and to serve EU customers at scale a group needs a separate EU-authorised payment institution, commonly in Lithuania, Ireland or the Netherlands. Our guide to EU payment institution licensing compares the options.
In the UK, HM Treasury consulted from 14 July to 6 October 2026 on modernising payment services regulation. The main proposals are to move detailed technical rules from the PSRs and the Electronic Money Regulations into the FCA Handbook, to restructure the list of payment activities (combining the cash placement and withdrawal services, combining execution with and without a credit line, and splitting card issuing from acquiring), and to bring UK-issued stablecoins used for payments within the payments regime. The Government also asked about authentication and liability for payments made by AI agents, and about stronger senior manager accountability at payment firms and EMIs.
The Government will make the changes through secondary legislation and has said it will set out implementation details after the consultation. Until then, applications are made and assessed under the current PSRs, and a firm authorised now carries its permissions into the new framework.
The firm prepares and manages FCA payment institution applications from the first route analysis through to authorisation and the first year of supervision. That covers the business plan and forecasts, the flow of funds, CASS 15 safeguarding, the financial crime framework, governance documents, preparation of directors for FCA interview and the response to every FCA question. It also arranges safeguarding and operating accounts alongside the application, so the firm can trade on the day it is authorised. Details of the service are on our UK payment institution licence page.
The PSRs require the FCA to decide a complete application within 3 months and any application within 12 months. The firm plans API authorisations at 6 to 8 months from submission, after 4 to 8 weeks of preparation.
£2,820 for an API providing only remittance, payment initiation or account information services, and £5,640 for an API providing payment accounts, execution, card issuing or acquiring. Small payment institution and RAISP registrations cost £1,130.
€20,000 for money remittance only, €50,000 for payment initiation and €125,000 for payment accounts, execution, issuing or acquiring. After authorisation the firm must also hold own funds at or above the amount calculated under Method A, B or C.
An SPI is limited to an average of €3 million of payment transactions a month, cannot provide payment initiation or account information services and has no initial capital requirement. An API has no volume cap and covers all eight payment services.
No. Issuing electronic money needs an EMI licence, and taking deposits needs a banking licence. An API holds customer funds only for the purpose of executing payments and must safeguard them under CASS 15.
No. Passporting ended on 31 December 2020. Serving EU customers at scale needs a separate payment institution authorised in an EU member state.
Yes, where the exchange is connected to a payment service the firm provides, as an ancillary service. Foreign exchange forwards or options used for purposes other than making a payment are investments that need separate FSMA permission.
No. Authorisation has no fixed term and no renewal date. It continues while the firm meets the conditions, files its returns and pays its annual fees, and anyone acquiring 10% or more needs prior FCA approval.
Buckingham Capital Consulting has obtained FCA payment institution licences for firms including Nexpay, Orbital, Oval and Global Send since 2013, and arranges the safeguarding and operating accounts alongside the application. The team prepares the business plan, CASS 15 safeguarding and financial crime framework, and manages every round of FCA questions through to authorisation.
Speak to an expert: WhatsApp +44 7563 115980, Telegram @buckinghamcapital or info@buckinghamcapitalconsulting.co.uk.
This article is general information, reviewed against the regulator’s published requirements on the date shown. It is not legal advice; the regulator’s current publications take precedence.