MattssonandClaude Fable 5
799fa1246a
* fix(vat): downgrade per-voucher RC basis gaps only under per-rate evidence Per-voucher RC basis gap findings (findRcBasisGaps) blocked "Skicka till Skatteverket" as ERROR even when the flagged vouchers were legitimate moms-only rattelseverifikat whose basbelopp lives in another (often reversed) verifikat. In that state no arrangement of vouchers satisfies both the per-voucher scan and the aggregate basis/moms identity, so the block was unfixable: every correction voucher joined the blocklist it was meant to clear (Orto Engineering 3DJake support case, 2026-08). The gap finding now downgrades to a non-blocking WARNING only when ALL of the following hold, otherwise the blocking ERROR stays exactly as before: - the 44xx/45xx RC basis accounts, grouped per momssats (RC_BASIS_ACCOUNTS_BY_RATE), match ruta 30/31/32 two-sided within a 0.5 kr ore epsilon per rate; - no moms box (ruta 30/31/32) is negative; - the aggregate RC_OUTPUT_MISSING check has not fired; - the caller supplied the evidence at all (older wire payloads and totals-less contexts keep the blocking behavior). A first cross-rate-sum predicate was refuted by adversarial review: a wrong-rate fiktiv moms voucher (12% moms "covered" by a 25% basis) reached parity and unblocked a 7 800 kr under-declaration, and a net-negative rate box made the summed comparison vacuous (textbook FK004 state filing). Rutor 20-24 are partitioned by purchase type, not rate, so the certificate must come from account totals; both counterexamples plus the tolerance-hole case (shortfall inside the aggregate 0.5% tolerance still blocks) are locked in as regression tests. The evidence travels as rcBasisByRate on the declaration payload (rcBasisTotalsByRate projection), consumed by the web view and the MCP completeness checks; rc-basis-gaps.ts derives its flat account set from the same rate-grouped single source so scan and evidence cannot drift. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(vat): refuse gap downgrade on non-finite evidence; pin the ore epsilon Review findings, one pass: - CodeRabbit (major): rcBasisByRate arrives as unvalidated JSON in the web view; a missing or non-numeric field made every per-rate comparison evaluate against NaN, which compares false and PASSED the predicate, relaxing the filing gate in the unsafe direction. The predicate now refuses the downgrade outright on any non-finite basis or moms figure, covering both the web and MCP callers. - CodeRabbit (nit): added a 0.51 kr drift case so a future widening of the 0.5 kr epsilon fails a test instead of slipping through green. Declined with reasons (recorded in the PR summary): requiring textual voucher-to-voucher references before downgrading (belongs to the rattelse documentation flow, and would reintroduce the unfixable block this PR removes); epsilon stacking across rates (max 1.5 kr, immaterial at whole-krona filing and below the aggregate tolerance); explicit negative-basis guard (all negative-basis paths already block via the two-sided mismatch or the negative-moms guard, now plus the finite guard). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Accounted
Open-source Swedish accounting software for sole traders (enskild firma) and limited companies (aktiebolag). Double-entry bookkeeping that complies with Swedish accounting law, built to be operated by you or by your AI agent.
Website · Hosted app · Documentation
Why Accounted?
Compliant by construction. Accounted implements double-entry bookkeeping under Swedish accounting law (Bokföringslagen). Voucher immutability, sequential voucher numbering, period locks, and 7-year document retention are enforced by database triggers, not by convention. Corrections are made the legal way, with reversal entries (storno), never by editing history. See ARCHITECTURE.md for how.
Agent-native. The full bookkeeping engine is exposed as 100+ MCP (Model Context Protocol) tools with scoped API keys, so an AI agent can do the books in Accounted: categorize transactions, draft vouchers, reconcile periods, and prepare declarations. Posting is staged for human approval, so the agent proposes and you decide.
Yours to run. AGPL-3.0 licensed and fully self-hostable with Docker and Supabase. Use the hosted version at app.gnubok.se or run your own.
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
- Payroll -- Salary runs, payslips, and AGI (arbetsgivardeklaration) employer declarations
- 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
- Agent access (MCP) -- 100+ bookkeeping tools over the Model Context Protocol, with scoped API keys and staged approvals
- 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 docs/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
See CONTRIBUTING.md for the full development workflow.
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
- User and API documentation -- Guides for using the product and the public API
- ARCHITECTURE.md -- How the system is built: bookkeeping engine, legal enforcement, tenancy, extensions, agent surface
- docs/SELF-HOSTING.md -- Full self-hosting guide (Docker, Supabase setup, migrations, optional features)
- docs/EXTENSIONS.md -- Extension development guide
- docs/DOCKER.md -- Docker deployment reference
- CONTRIBUTING.md -- Development workflow, code style, pull request process
- SECURITY.md -- Vulnerability reporting policy
Community
- Found a bug or have an idea? Open an issue
- Security vulnerabilities: see SECURITY.md, never a public issue
- Everyone interacting in the project is expected to follow the Code of Conduct
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.