SaaS development · United Kingdom

SaaS development company for UK startups and B2B software

InnoFeature Labs is a UK-registered SaaS development company. We design and build multi-tenant subscription products for UK founders and B2B companies, from the first MVP to a platform with thousands of users.

UK products need more than a sign-up page: UK GDPR, VAT on subscriptions, Direct Debit billing and the security questions UK enterprise buyers ask. We build those in from the first sprint.

IFUK SaaS launch checklistIllustrative checklist
  • Tenant isolation tested
  • UK GDPR and DPA for customers
  • VAT-ready subscription invoices
  • Card and Direct Debit billing
  • SSO and audit logs for enterprise
  • Hosting in a UK or EU region
Ready to launch
Company
UK-registered (Ltd)
Billing
Stripe, GoCardless Direct Debit
Hosting
AWS London or another UK/EU region
Ownership
Source code yours after full payment

In short: We are a UK-registered SaaS development company that builds subscription software for UK startups and B2B businesses: multi-tenant architecture, self-serve onboarding, subscription billing with Stripe or GoCardless, VAT-ready invoices, UK GDPR-aware data handling and the security controls enterprise buyers expect, such as single sign-on and audit logs.

UK

What a UK SaaS product has to get right

UK buyers, especially larger ones, run security and data protection checks before they sign. These are the points we design for.

UK GDPR as a processor

Your SaaS usually processes your customers' personal data, so you need a data processing agreement, sub-processor list, export and deletion tools, and breach logging.

VAT on subscriptions

UK VAT on B2C digital services, reverse charge for many B2B sales, VAT numbers captured at checkout, and invoices your customers' finance teams accept.

Direct Debit billing

Many UK businesses prefer to pay by Direct Debit. We combine Stripe for cards with GoCardless for Bacs Direct Debit, including failed-payment retries.

Security questionnaires

Single sign-on, role-based access, audit logs, encryption and documented backups, plus the evidence you need for Cyber Essentials or ISO 27001 if you pursue them.

UK and EU hosting

AWS London, Azure UK South or an EU region, so you can answer the 'where is our data?' question with confidence.

UK business integrations

Xero, QuickBooks, Sage, HubSpot and Microsoft 365 connections that UK customers expect from day one.

Sources (checked October 2026): ICO: controllers and processors · GOV.UK: VAT on digital services · NCSC: Cyber Essentials
This page is general information, not legal or tax advice.

SaaS Development

SaaS development services in the UK

Every build is custom: no templates and no locked-in platform.

SaaS MVP development

Sign-up, the core feature customers pay for and billing, so you can start selling and learning.

Multi-tenant architecture

Tenant isolation, data model, roles and cloud setup designed to scale safely.

Subscription billing

Plans, trials, VAT, invoices and dunning with Stripe and GoCardless.

B2B SaaS platforms

Company accounts, team seats, approvals, SSO and white-label branding.

AI features in SaaS

Assistants, document processing and automation with usage tracked per tenant.

Turn software into SaaS

Re-architect an internal tool or single-client system into a subscription product.

How we work

How we work with UK teams

  1. 1

    Free discovery call

    Who will use the product, what it must do and which systems it connects to.

  2. 2

    Scope and estimate

    A first-release boundary, clickable prototype and an estimate before development.

  3. 3

    Build in sprints

    Working software shown at every review, scheduled in your time zone.

  4. 4

    Test and launch

    Staging, device and security testing, then a controlled release.

  5. 5

    Support and grow

    Monitoring, updates and the next features based on real usage.

Interactive demo

See how a project runs, step by step

Our main page has an interactive demo and a click-through walkthrough of a project from the first call to launch.

Open the interactive walkthrough

Frequently asked questions

FAQs

Are you a UK SaaS development company?

Yes. InnoFeature Labs Ltd is registered in the United Kingdom (registered office: 71-75 Shelton Street, London WC2H 9JQ). Discovery, sprint reviews and support run online in UK working hours.

How much does SaaS development cost in the UK?

It depends on the core features, user roles, billing model, integrations and security requirements. We define an MVP in discovery and estimate it in GBP before development starts, then scope later modules from real usage.

How do you handle VAT for a UK SaaS?

We build VAT rules into billing: UK VAT for consumers, reverse charge where it applies to business customers, VAT number capture and compliant invoices. Your accountant should confirm the treatment for your product.

Can customers pay by Direct Debit?

Yes. We integrate GoCardless for Bacs Direct Debit alongside Stripe for cards, including retries and notifications when a payment fails.

Will our SaaS pass enterprise security reviews?

We build the controls reviewers ask about: SSO, roles, audit logs, encryption, backups and documented incident handling. Certifications such as Cyber Essentials or ISO 27001 are awarded to your company, and we help you prepare the technical evidence.

Who owns the code?

For custom builds the deliverables become your property after full payment unless agreed otherwise in writing.

Next step

Building a SaaS product for UK customers?

Tell us who your first subscribers are and how they should pay. We will review architecture, billing and a realistic first release with you.

Trusted byHN TradersInventory Management SystemB&K PropertiesCRMAWERP
Source-code ownershipUnder agreed project terms
UK GDPR privacy policyHow enquiry data is handled
No per-user licence feesOn custom-built systems
Encrypted HTTPS / SSLSecure site connections