MattssonandClaude Fable 5
9ad3908ed0
* fix(salary): state percentage skatteavdrag in whole kronor (SFF 22 kap. 1 §) calculateJamkningTax and calculateSidoinkomstTax returned öre-precision amounts; skatteavdrag is stated in whole kronor with öretal dropped (SFF 2011:1261 22 kap. 1 §), the same rule taxForRate already applies to percent brackets. The two inline flat-30% branches in calculation-engine.ts (unverified F-skatt, no-table fallback) had the same defect and now route through calculateSidoinkomstTax. Computed in integer öre and hundredths of a percent: flooring the raw float product loses a whole krona when float noise lands an exact result just below an integer (1000 * 0.007 === 6.999999999999999). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(salary): pick the lower tax table at exactly ,50 per Skatteverket rule Math.round sent a total municipal rate of 32,50 to table 33; Skatteverket's rule is that a fractional part of at most 50 öre picks the lower table and 51 öre or more the higher. Compared in hundredths so float noise cannot decide the boundary. Latent today (no kommun sits exactly on ,50 for 2026) but the code now matches the comment above it, which already stated the correct rule. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(salary): reject two-week rows in the monthly tax table import parseLine only checked position 3 for B/%, so a two-week table row (14B29) would silently merge into the monthly fallback data if the wrong Skatteverket file were used as input. The day-count prefix must now be 30; a 14-row throws loudly. main() is guarded behind a direct-execution check (same pattern as generate-crontabs.ts) so parseLine is importable by tests. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(salary): truncate toward zero, not floor, in whole-krona skatteavdrag Skeptic refutation: taxable income can go negative when deductions exceed pay, and Math.floor rounds negatives away from zero, so a payslip 1 öre negative would book a full krona of negative withholding (calculateSidoinkomstTax(-0.01) gave -1 instead of -0). Öretal bortfaller truncates toward zero: Math.trunc, with -0 normalized to 0. 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.