Supplier invoice items store vat_rate as a decimal fraction (0.25) while customer invoices use integer percent (25). The shared Zod schema accepted 0-100, so a percent-shaped vat_rate silently booked 2500 % VAT via line_total * vat_rate, and the MCP inbox-conversion path staged the AI extraction's percent-integer vatRate straight into the decimal column with per-line vat_amount 0. Part of #310. - CreateSupplierInvoiceItemSchema.vat_rate is now a literal union of the statutory decimal set (0, 0.06, 0.12, 0.25) with a unit-hint error, covering the cookie route, the invoice-inbox convert route, and /api/v1 (whose runtime ALLOWED_SV_VAT_RATES guard stays as defense in depth). - New shared normalizeVatRateToDecimal() in lib/vat: percent-shaped values (25, 12, 6) divide by 100, results snap to the legal Swedish set, and anything else (foreign 19/20, non-finite) maps to 0. - gnubok_create_supplier_invoice_from_inbox normalizes vatRate at the extraction boundary and derives per-line vat_amount when the extraction carries none, so the staged header vat_amount is honest. - The pending-operation executor normalizes staged vat_rate on insert, so rows staged before this fix cannot book percent-scaled VAT. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Accounted
Open-source Swedish accounting software for sole traders (enskild firma) and limited companies (aktiebolag).
What is Accounted?
Accounted implements double-entry bookkeeping compliant with Swedish accounting law (Bokforingslagen). It supports the BAS 2026 chart of accounts, handles VAT declarations (momsdeklaration), SIE import/export, and enforces 7-year document retention. Built for sole traders and limited companies operating in Sweden.
Features
- Double-entry bookkeeping -- BAS 2026 chart of accounts, draft/commit workflow, sequential voucher numbering
- Invoicing -- Create, send, and track invoices with mixed VAT rates and PDF generation
- Bank reconciliation -- PSD2 bank connection via Enable Banking, 4-pass automatic matching
- VAT declaration -- SKV 4700 form mapping, per-rate breakdown, EU/export handling
- Tax reports -- NE-bilaga, INK2, SRU export for Skatteverket
- Supplier invoices -- Registration, payment tracking, input VAT deduction
- Document archive -- SHA-256 integrity, 7-year retention enforcement, full archive ZIP export
- SIE import/export -- Standard Swedish accounting interchange format
- Extension system -- Opt-in plugins for AI categorization, receipt OCR, email, calendar, and more
Self-Hosting
git clone https://github.com/erp-mafia/accounted.git
cd Accounted
./setup.sh # Prompts for Supabase credentials, generates .env
docker compose up -d
You need a Supabase project and must apply the database migrations before first use. See SELF-HOSTING.md for the full step-by-step guide, including Supabase setup, auth configuration, optional features (AI, email, push notifications), and troubleshooting.
Development Setup
Prerequisites: Node.js 20+, a Supabase project.
npm install
npm run dev # Start dev server (auto-generates extension registry)
npm test # Run tests
npm run build # Production build
npm run lint # ESLint
Tech Stack
- Framework: Next.js 16 (App Router), React 19, TypeScript (strict)
- Database: Supabase (PostgreSQL + Row Level Security + email/password auth + TOTP MFA)
- Styling: Tailwind CSS 4 + shadcn/ui
- Integrations: Enable Banking (PSD2), Anthropic SDK, LangChain, OpenAI, Resend, JSZip
Documentation
- SELF-HOSTING.md -- Full self-hosting guide (Docker, Supabase setup, migrations, optional features)
- CLAUDE.md -- Architecture, bookkeeping engine, database conventions, extension system
- CONTRIBUTING.md -- Development workflow, code style, pull request process
- SECURITY.md -- Vulnerability reporting policy
Contributing
Contributions are welcome. See CONTRIBUTING.md for the full guide.
All commits require a DCO sign-off (git commit -s).
License
AGPL-3.0-or-later with an extension exception: third-party extensions that interact solely through the documented Extension API may be licensed under any terms, including proprietary. See LICENSE for details and NOTICE for third-party attributions.