SaaS / FinTechMay 2026

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

SaaS Product DesignNext.js Full-Stack BuildStripe Billing IntegrationAuthentication & Multi-tenancyAI Assistant & InvoicingMarketing Site
Visit Live Site
ClientZeroDue
LocationRemote
TimelineFull product build
IndustrySaaS / FinTech
ZeroDue — 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.

The ZeroDue portal — dashboard, invoices, clients, estimates, recurring billing, expenses, and analytics in one workspace.
The ZeroDue portal — dashboard, invoices, clients, estimates, recurring billing, expenses, and analytics in one workspace.
AI-powered invoice creation — search Companies House by name or number to autofill UK business details, or enter them manually.
AI-powered invoice creation — search Companies House by name or number to autofill UK business details, or enter them manually.

Key Results

StripePaid plans with self-serve billing
AI-poweredInvoicing via Companies House lookup
Multi-tenantPer-business workspaces with secure auth

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

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