Areas and technologies
- saas
- invoicing
- verifactu
- nuxt
- firebase
- ios
- Invoices
Standard, simplified, corrective and recurring
- Templates
Drag-and-drop visual editor; watermarked PDFs and scheduled sending
- Payments
Stripe integration
- Accountants
A dedicated portal for the adviser
- Data
Clients and projects; Excel and CSV export
- Apps
iOS with a document scanner; Android on the way
An invoicing application for freelancers and businesses, with templates, payments and an iOS app.
Mis-Facturas is an invoicing and management SaaS for freelancers, SMEs and companies in Spain. It complies with VeriFactu, the Spanish tax agency's system for verifiable invoices. Live since 2025 and constantly evolving, with an app on the App Store.
VeriFactu
Each invoice is signed and chained to the previous one with a SHA-256 hash, carries its tax QR code and is registered (or cancelled) with the tax agency. The chain means an invoice can't be altered without it showing.
Stack
Nuxt 4 and Tailwind 4, Firebase (Hosting, Functions, Firestore and Secret Manager), Stripe, pdfmake and Amazon SES. A monorepo with the dashboard, the mobile apps and an OCR service, and separate test suites for the API, rules, VeriFactu and end-to-end. More than 3,700 commits.
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