Services · Mobile app development · Subscription billing software
Codeeo handles subscription billing software development UK businesses can run on their own terms: plans, Direct Debit mandates, card renewals, VAT invoices, dunning and a customer app for changing or cancelling a plan. We build it around the rules that actually govern recurring payments in Britain, from the Bacs scheme to strong customer authentication and the new subscription contract regime, so finance, support and product teams work from one record of every customer and every charge.
Off the shelf billing tools suit many firms. A custom build makes sense when your pricing, your mix of consumer and business customers, or your reporting needs have outgrown what a template product allows, and when you want to own the logic that decides what each customer pays.
200+ companies servedFrom a first store to an ADX listed developer
What the platform covers
Recurring revenue looks simple on a pricing page and gets complicated the moment a customer upgrades halfway through a month, a card expires, or a Direct Debit comes back unpaid. A UK billing platform also has to respect several national frameworks at once: Bacs scheme rules for bank collections, the Payment Services Regulations and FCA technical standards for card authentication, HMRC rules for VAT invoices and digital records, UK GDPR for customer data, and consumer law on how subscriptions are sold, renewed and ended. We design the platform so each of these is handled by a specific part of the system rather than by staff remembering to do it. Below are the components most of our UK builds include, in the order money moves through them. Not every business needs all of them in the first release, and we help you decide which belong in version one. Custom subscription billing software development UK companies commission from us always starts with this list, because it decides cost far more than screen count does: each payment method, migration source and integration adds testing work, while extra screens add comparatively little.
Monthly, annual, tiered, per seat and usage based plans, with add-ons, introductory periods and contract terms held as data rather than code. Finance can launch or retire a plan without a release, and old plans keep billing existing customers correctly until they move.
Pricing changes become a settings task, not a development ticket.
Online mandate setup with the Direct Debit Guarantee shown correctly, advance notice of each amount and date (ten working days unless the customer agrees a different period), and automatic handling of the Bacs reports that tell you about cancelled mandates and unpaid collections. We work with your own Service User Number or a payment provider that collects under its own.
Bank collections that follow scheme rules without manual checking.
The first payment is authenticated through 3-D Secure, then later renewals run as merchant initiated transactions. When an issuer still asks for authentication, the customer gets a prompt to approve it in the app or by email, and the subscription waits rather than failing silently.
Fewer renewals lost to authentication challenges.
Invoices carry your VAT number, the tax point, a sequential number, rates and totals. Mid term upgrades and downgrades produce pro rata charges or credit notes, and the records feed bookkeeping software that submits returns under Making Tax Digital.
VAT records your accountant can reconcile without rework.
Reminder notices before renewals and before a free or discounted trial ends, a cancellation route as easy as the signup, and tracking of cooling off windows, built ready for the regime the government has said starts in January 2027.
Consumer contract duties handled by the system, not by memory.
Retry schedules tuned separately for cards and Direct Debit, polite reminders, grace periods before access is restricted, and a clear record of every attempt so support staff can answer a customer straight away.
More failed payments recovered before a customer churns.
A web and mobile account area where customers change plans, update payment details, download invoices, pause where you allow it and cancel in a few taps. Every change is priced on screen before they confirm.
Fewer support tickets about plans, payments and invoices.
Connections to the bookkeeping, CRM and data tools you already use, such as Xero, Sage, QuickBooks, Business Central or HubSpot, through their published APIs, with a reconciliation report that flags any mismatch between billed, collected and recorded amounts.
Finance closes the month from data it trusts.
Monthly recurring revenue, deferred revenue, failed payment rates, cohort retention and plan movement, broken down by region and channel so you can compare performance across the nations and regions you sell in.
Decisions based on live subscription data rather than spreadsheets.
Who this is for
Subscription billing touches almost every team, so the right build depends on what you sell, who pays and how they pay. Most of the UK businesses we speak to fall into one of the four situations below. Each needs a different first release, and the order of work changes with it. If you recognise yourself in more than one, that is common, and discovery is where we decide which problem to solve first.
Your customers want invoices with purchase order numbers, annual prepayment options, seat changes during the year and VAT handled properly for overseas buyers where the reverse charge applies. We build the quoting, contract and invoicing logic around how your sales team actually closes deals, and connect it to the product so access matches what each account has paid for.
Entitlements and invoices stay in step.
Members and donors often pay by Direct Debit, renew yearly and expect clear notice before money leaves their account. We build mandate handling, renewal notices and membership records together, with Gift Aid declarations captured where they apply, and reporting your trustees can read. Some cultural and heritage memberships are being taken out of the new subscription regime, which we check against final guidance with you.
Scope of the new rules is confirmed case by case.
Boxes, apps, clubs and services sold to the public carry the heaviest consumer law duties. We design signup, reminder and cancellation flows that meet the coming subscription contract rules, keep marketing messages separate from service notices under PECR, and handle delivery regions across Great Britain and Northern Ireland.
Consumer rules shape the design, not the other way round.
Many established businesses bill recurring customers from a mix of spreadsheets, an old desktop package and manual bank uploads. We map every live customer, mandate and price, migrate them without asking customers to sign up again where scheme rules allow mandate transfer, and run the old and new systems side by side until totals match.
Migration is planned before any code is written.
How we work together
Codeeo has no UK office. Our team of 80+ works from Dubai, Riyadh and Karachi and serves UK clients remotely, with discovery, design reviews and release demos run by video call. Most clients start with a fixed scope first release covering the plans and payment methods they need now, then keep a monthly retainer for new pricing models, integrations and regulatory changes. Larger organisations sometimes take a dedicated team that works inside their own planning process for a longer programme. Choosing a subscription billing software development company UK finance teams can rely on comes down to how well it understands money movement, so we spend the first conversations on your collections, refunds and month end close rather than on screens. Across 200+ projects delivered in the UAE and the US, the same lesson holds: billing faults cost trust faster than any other bug.
A defined build with a deadline
We agree what the product has to do, write it down with a price and a date, and build exactly that. Changes are priced before they are made, not discovered on the invoice.
A product that keeps evolving
Named engineers who work your hours, join your standups and stay on the codebase. You direct the backlog; we own the quality of what ships.
Something live that needs looking after
A monthly block of hours for improvements, fixes and the small requests that otherwise wait months. Unused hours carry for a quarter.
Technology
We choose the stack around your payment providers, accounting software and the team who will maintain the platform. Typical builds use a typed backend, a relational database with full audit history, and React or native mobile apps for the customer account area.
01Mobile
02Data and cloud
03Marketing and tracking
It depends mainly on payment methods, migration and the number of pricing models.
A platform that bills cards for a handful of plans is a much smaller job than one that also collects Direct Debit, migrates thousands of existing mandates and invoices business customers on contract terms. We give you a timeline after discovery, once we know which payment providers you use, how messy your current data is and which reports finance needs on day one. Dates are written into the plan before design starts, and each release has a defined scope so you can see progress against it. Our subscription billing software developers UK clients work with also plan time for testing renewals across a full billing cycle, because some faults only appear on the second charge.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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