I built a fully local accounting + tax filing software for Japan
I built a fully local accounting and tax filing software for Japan.
- No external APIs
- JSON-based data flow
- Generates e-Tax XML
- Supports an end-to-end pipeline from accounting to tax filing
The system is designed to be simple, private, and extensible.
Current status:
- Accounting software: completed
- Tax filing (Form 1 / Form 2 / Consumption tax): completed
- XML generation: in progress
I'm building this as a solo developer.
Feedback is welcome.
