Services · Mobile app development · Subscription billing software
We provide subscription billing software development London companies use to charge for software seats, data feeds, memberships and delivery plans without bending their pricing to fit a packaged tool. Usage metering, multi currency invoicing, enterprise contracts, card and Direct Debit collection and a customer account app sit on one ledger. That matters in a city where one firm may sell to a bank in the City, a startup in Shoreditch and a consumer in Croydon in the same week.
London businesses tend to reach custom billing earlier than firms elsewhere, because their buyers are international, their contracts are negotiated and their investors ask hard questions about revenue quality. The platform is built to answer those questions from data, not from a spreadsheet someone rebuilds every quarter. It also keeps London's mix of buyers apart where it should: business contracts on negotiated terms, and consumer plans under consumer law.
200+ companies servedFrom a first store to an ADX listed developer
Platform capabilities
Pricing in London rarely stays simple for long. A Shoreditch software company adds a usage tier for a large customer. A financial data publisher near Liverpool Street sells annual licences with different terms for each institution. A consumer brand runs weekly delivery plans across Zones 1 to 6 alongside a monthly digital membership. Each of these breaks the assumptions inside most billing products sooner or later. The capabilities below are the ones London clients most often need, chosen because they handle negotiated, international and high volume billing in one system. We still build every platform around UK payment rules: Bacs for Direct Debit, strong customer authentication for cards under the FCA's technical standards, and HMRC's requirements for VAT invoices. The difference on a London build is usually the commercial complexity layered on top, so we start by modelling your real contracts before we design a single screen.
API calls, data downloads, messages, storage or seats are counted from your product's event stream, rated against each customer's agreed price, and shown on a live usage page so nobody is surprised by the invoice. Late or duplicated events are handled without double charging, and customers can set alerts when they near a spending threshold they choose.
Usage pricing you can offer to any customer with confidence.
Sales teams build quotes with custom prices, ramps, minimum commitments and renewal terms, then turn a signed quote into a live subscription in one step. Every exception is recorded against the contract, not in an email thread, and renewal quotes are drafted automatically ahead of each anniversary for account managers to review.
What sales agreed is exactly what finance bills.
Customers in Europe, the US and the Gulf can be billed in their own currency at prices you set per market, while reporting converts everything to sterling at rates your finance team chooses. VAT treatment follows the customer's location and status.
International customers billed cleanly from a London base.
Annual and multi year contracts produce deferred revenue schedules that follow the policy your accountants set under IFRS 15 or FRS 102, with journals exported to your general ledger and a clear audit trail behind each figure.
Month end close and due diligence take less effort.
Single sign on for staff, role based permissions, approval steps for credits and refunds, and a full change log. These are the controls procurement and security teams at larger London buyers ask about before they sign.
Security reviews from big customers become easier to pass.
Your product asks one API what a customer is allowed to use right now, based on plan, add-ons, contract and payment status. Upgrades switch features on instantly and suspended accounts lose access on the schedule you define.
Access always matches what each account has paid for.
Cards are authenticated through 3-D Secure on signup and renewed as merchant initiated payments afterwards. Larger UK customers can pay by Direct Debit with proper advance notice, and business accounts can pay invoices by bank transfer with automated matching.
Each customer pays the way their own finance team prefers.
For plans sold to the public, the platform sends renewal and end of trial reminders, records cooling off periods and offers a simple online exit, configured for the subscription contract rules due in January 2027.
Consumer plans ready for the new regime when it lands.
Recurring revenue, net revenue retention, expansion, contraction and churn by cohort and segment, calculated from the ledger itself so the numbers in a board pack match the numbers in the accounts. Many London scale-ups face investor due diligence at short notice, and a ledger that explains itself saves weeks of reconciliation.
One version of the truth for founders, boards and investors.
Who this is for
London has every kind of subscription business, but the requests we see cluster into a few patterns. The four below are the most common. Each one changes what goes into the first release and which integrations matter most, so we use them to frame the opening discovery call. If your situation sits between two of them, that is a useful finding in itself, because it usually points to the part of your billing that hurts most. Whichever pattern fits, the first release covers the revenue that matters most today, and the rest follows once that is billing correctly and finance trusts the numbers coming out of it.
You started on a hosted billing tool and it worked until enterprise deals arrived with custom terms, usage tiers and procurement demands. Now finance maintains side spreadsheets and sales promises things the system cannot bill. We rebuild billing around contracts and usage, keep the parts of your old setup that still work, and give finance revenue schedules they can hand to auditors. Product teams get an entitlements API, so launching a new tier no longer needs changes in three places.
Contracts and usage drive the design.
Institutional clients buy licences by user, desk or entity, renew annually and negotiate hard. Billing errors damage relationships that took years to build. We model licence terms precisely, automate renewal quotes ahead of each anniversary, and connect entitlements to your delivery platform so access ends or extends exactly as the contract says. Account managers see upcoming renewals for every institution weeks ahead, with usage history to support the conversation.
Accuracy matters more than speed here.
Meal plans, fitness memberships, cleaning services and delivery clubs depend on smooth signup and an honest cancellation route. We build card and Direct Debit flows, delivery zone pricing across the boroughs, pause and skip options, and the reminder and cancellation steps the new consumer subscription rules expect.
Consumer law shapes every flow.
If you are authorised by the FCA, billing for your own service still has to sit cleanly beside regulated activity, with clear records and controls your compliance team can review. We keep subscription charges, customer money and regulated flows separate in the design, document the controls, and leave decisions about your permissions and reporting to your compliance team, whose sign-off we build into the plan. The FCA's offices are in Stratford, but our work with you runs entirely by video call.
Your compliance team reviews the design early.
Working with us
We do not have a London office. Codeeo's team of 80+ is based in Dubai, Riyadh and Karachi, and we work with London clients remotely, holding discovery sessions, design reviews and release demos by video call. As a subscription billing software development company London firms can hire for a defined first release, we also stay on retainer for new pricing models and integrations, or provide a dedicated team for a longer programme. The model depends on how often your pricing changes. Firms that launch new products every quarter usually benefit from a retainer, while firms with stable pricing often take a fixed scope build and call on us only for occasional changes.
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
The stack follows your systems and your engineers. London builds often sit beside an existing product, so we match your languages and cloud provider where we can, use a relational ledger with full history, and expose billing through a documented API that your own engineers can extend after handover.
01Mobile
02Data and cloud
03Marketing and tracking
Modelling contracts, building the ledger and connecting it to your product, CRM and accounts.
Most London projects begin with pricing that has outgrown a packaged tool: usage tiers, negotiated enterprise terms or several currencies. We model those rules, build a ledger that records every charge and payment, and connect it to the systems around it. The customer account area, admin screens and finance reports come next. Custom subscription billing software development London companies commission from us is shaped by how complex the contracts are, not by the size of the company.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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