A full SaaS invoicing platform — secure portal, Stripe billing, and AI-powered invoicing

The Challenge
ZeroDue wanted to launch a modern invoicing platform for UK freelancers, contractors, and small service businesses. Not a brochure site — a real product. That meant a secure client portal, paid plans powered by Stripe, a fast invoicing workflow, and AI that genuinely shortens the day-to-day.
Our Solution
We designed and shipped the entire product end to end. The portal includes a dashboard, invoices, clients, estimates, recurring billing, expenses, and analytics, with secure authentication and per-business workspaces so a single user can run multiple companies. Stripe powers the Free, Professional, and Enterprise plans with self-serve upgrades and cancellations. An AI assistant sits across the portal to draft invoices, summarise activity, and answer product questions, while our Companies House integration turns invoice creation into a one-search task — type a company name or number and the UK address and registered details autofill in seconds. We also built the public marketing site at zerodue.co to land the launch.


Key Results
We wanted a real product, not just a landing page. Verosite built the portal, the Stripe billing, the AI invoice flow, and the marketing site — and shipped it as one cohesive launch.
Daniel Stoica
Founder, ZeroDue