Verisello - VeriFactu invoicing & tax SaaS, Spain

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WHAT IT ISVerisello is a LIVE SaaS (open beta at verisello.com) that gives Spanish freelancers (autonomos) the full tax + invoicing loop: issue a VeriFactu-compliant invoice, snap a receipt photo on WhatsApp, AI extracts the data, all quarterly and annual declarations are auto-computed and exportable in the official AEAT format.WHY NOWSpain's VeriFactu regulation (effective July 1, 2027) requires every freelancer to use certified invoicing software with tamper-evident records. Fines up to 50,000 EUR. Captive market: 3.3M autonomos forced to adopt in the next 12 months.WHAT WORKS (live in production)VeriFactu hash-chain invoicing: SHA-256 chain at DB level, Facturae 3.2.2 XML, XAdES-BES signing, AEAT QR codesWhatsApp receipt capture: user sends a photo, AI (Claude vision) turns it into a categorized expense - killer feature, works via Twilio or Meta Cloud APIAI expense categorization with deductibility % per Spanish tax rulesAll 6 tax declarations (Modelo 303/130/111/390/347/100) auto-computed + official AEAT BOE fixed-width exportCuota calculator (RDL 16/2025 brackets) + tax calendar with deadline remindersPSD2 bank sync integration built (GoCardless API, auto-matching payments to invoices/expenses) - buyer plugs in own provider credentialsBilingual landing (ES/EN), responsive app, illustrated brandSTACKNext.js 15 - React 19 - Fastify 5 - TypeScript - PostgreSQL - Redis - BullMQ - Anthropic Claude - Turborepo - Vitest - Playwright - GitHub Actions CI - deployed on RailwayINCLUDEDGitHub repo (full history) - verisello.com domain - logo + brand assets - live production handover - 30 days founder supportWHY SELLINGPivoting to a different vertical. Product is live and feature-complete - better in the hands of an operator who will grow it into the July 2027 regulatory window.