Money Transfer

United Kingdom · API / SPI

Money transfer platform for UK payment institutions

Send money from the UK to the rest of the world under your own brand, priced by corridor and currency. Start as a small payment institution and keep the same platform when volumes push you into full FCA authorisation.

  • Corridor and currency pricing
  • Batch payouts with approvals
  • Faster Payments, CHAPS, SWIFT, SEPA
  • Same platform from SPI to API
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Back-office dashboard with accounts and balances
Mobile banking app in your brand

Case Studies

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Multipass is a financial services provider offering global business accounts, multi-currency payments, and cross-border transaction solutions.

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Multipass Case study
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Paysend & Crassula - a banking solution for international companies

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LuxPay is at the forefront of providing advanced financial services, designed to meet the needs of modern businesses and consumers alike.

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Wickie offers secure and scalable fiat and cryptocurrency payment solutions, providing users with digital wallets and seamless financial services across multiple platforms.

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What you can run as a UK payment institution

Consumer remittance

Customers pay in by Faster Payments and the money goes out to the recipient's bank over SWIFT, SEPA or a local scheme through your connected provider.

Business payouts

Upload a file to pay suppliers, contractors or sellers in one run, with templates and maker and checker approval.

Your FX margins

Spot exchange with a mark-up per currency pair set in price lists, so you can price a busy corridor differently from a niche one.

Mobile banking app with a branded Visa card added to Apple Wallet
Mobile banking app home screen with balance, Add money and Send buttons

Routing by corridor

Each payment goes through the provider you pick for that corridor and currency, based on cost and delivery time.

Recipient management

Saved counterparties, BIC lookup and transfer drafts that a customer can check before confirming.

What this licence does not cover

  • Stored-value wallets. Balances that customers keep for later spending are e-money and need an EMI authorisation.
  • Account information or payment initiation as a small payment institution. Open banking services need full authorisation.
  • Paying interest on funds you hold, or lending them out. A PI can hold money only to execute payments.
  • Serving EEA customers from a UK authorisation. UK firms lost passporting after Brexit, and an SPI registration never included it.

What the regulator asks about your IT

Each requirement, what the platform gives you for it and who owns it after launch.

Flow diagrams from customer pay-in to payout, per rail and per provider, drawn from your live configuration.

You, with our material

Records of what is owed to each customer while a transfer is in flight, exported for reconciliation against your safeguarding account.

Your finance team

Customer and recipient data captured at onboarding and on each transfer, client limits per customer, data feeds for your screening and monitoring providers.

Your MLRO

2FA on customer and staff logins, role-based access and an audit trail in the back office.

Crassula runs it, you approve the policy

Service description, contract terms, audit and access rights, and an exit plan that hands back transfer history.

You, with our input

Backups, recovery set-up and our incident process, so you can describe how payments resume after an outage.

Shared

Reporting on payment volumes over any period, so you can see the 12-month average and plan the move to full authorisation.

Your finance team
Compliance documents card with created, sent, verification and accepted steps

Payment rails and providers

Rails your customers can use

Faster PaymentsCHAPSBacsSWIFTSEPASEPA Instant
ClearBank

ClearBank

UK clearing bank for regulated firms, direct member of Faster Payments, Bacs and CHAPS, holding GBP client funds at the Bank of England.

Clear Junction

FCA-authorised EMI whose clients include remittance and FX firms, offering GBP and EUR accounts and named virtual IBANs for reconciliation.

24/7
real-time processing, no batch window
60+
payment and provider integrations connected
150+
companies run on Crassula
15+
languages the platform speaks

Dates to plan around

Rules that change what you have to build, in the order they apply.

7 May 2026

CASS 15 safeguarding rules apply to authorised PIs, and to small PIs that choose to safeguard: daily reconciliation and a monthly return to the FCA.

21 Apr 2026

HM Treasury confirmed it will close the Payment Systems Regulator and move its powers under the PSRs 2017 to the FCA. Primary legislation is still needed.

6 Oct 2026

Consultation on folding the PSRs 2017 and EMRs 2011 into FCA rules closed. The capital and SPI thresholds in this page come from the current regulations.

Registering or applying with the FCA as a payment institution? We cover the tech.

The FCA asks the same questions of a two-person remittance start-up and a payout company moving millions: how money moves, who holds it and what happens if a system fails. We help you answer the technical ones.

01

A platform you can demonstrate

A configured environment with your corridors and pricing to show the regulator, not slides.

02

The technical part of your application, prepared

IT systems, security policy, outsourcing and business continuity sections of your SPI registration or API application.

03

Providers lined up

UK accounts, safeguarding and payment rails through partners including ClearBank and Clear Junction.

Talk to us about your application

Crassula provides technology and documentation support. We do not provide legal or regulatory advice and cannot guarantee the outcome of an application.

Policy document prepared for a licence application
Transfer routes with country flags and delivery times

From SPI to authorised PI on one platform

A London team sends money to families in Poland and Romania. They register as a small payment institution, launch with two corridors and set a separate FX margin for each. Customers pay in by Faster Payments, and payouts go over SEPA through their provider.

Eighteen months later their reports show the 12-month average heading towards the EUR 3 million cap, and business clients want bulk payouts. They apply for full authorisation with the same platform described in the file, switch on batch payouts and add corridors, while the existing customers keep their app and history.

Planning the licence first? Read our UK small PI guide, the UK authorised PI guide and how to start a money transfer business.

Read the licence guides

FAQ

The monthly average of payment transactions over the previous 12 months must not exceed EUR 3 million, including your UK agents. New firms use their projections. The figure is set in euros in regulation 14 of the PSRs 2017.

EUR 20,000 if you only offer money remittance. If you also run payment accounts or other services in paragraphs 1(a) to (e) of Schedule 1, the minimum is EUR 125,000, and payment initiation needs EUR 50,000. The highest applicable amount applies.

No, safeguarding is mandatory for authorised PIs and optional for SPIs. An SPI that chooses to safeguard follows the same CASS 15 rules on reconciliation and returns. Many banking partners prefer to see it either way.

The PSRs 2017 give the FCA three months from a complete application and up to twelve months from an incomplete one, for both authorisation and SPI registration. Plan the build to run in parallel.

Only to execute payments. Money that customers store for later use is e-money and needs an EMI authorisation. If you plan wallets, see digital banking for UK EMIs.

No. The same accounts, corridors and customer history carry over. You switch on features such as batch payouts or new rails when your authorisation allows them.

Create a digital bank in a matter of days

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