Open-Source-Tax-Tooling
Research on open source bookkeeping tools as inputs for US consumer tax software, with a hledger prototype.
What it does
Research asking whether open source bookkeeping tools can feed US consumer tax software: five tools, hledger among them, are evaluated on APIs, CLIs and file formats, with a report and comparison matrix. A Python adapter around hledger turns a synthetic freelancer CSV into normalised facts. A 2026 internship project: synthetic data only, no tax calculation, forms or filing; not tax advice.
Where it fits on the map
Not on the map: a demo and for individual taxpayers.
The map places maintained projects for a company tax department or a tax authority, without a demo or paid-service flag. Everything else stays on the list with its label.
Similar projects
Of the same kind, for a shared jurisdiction or tax area. Not a ranking.
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- caseflowTariff classification with legal reasoning for Nigeria's ECOWAS common external tariff and the US HTS.
- CFO StackBeancount accounting run through Claude Code, with jurisdiction packs for Canada, the US, Taiwan and China.For individual taxpayers
- DaLI for RP2Data loader that turns exchange and wallet records into input files for the RP2 crypto tax calculator.For individual taxpayers
- fatca-ides-phpPHP library that converts bank client data into FATCA XML packages for the IRS IDES gateway.
- hs-code-lookup (AccioWork)HTML tool to find 6-digit HS and 10-digit HTS codes for 15 or more product categories, with 2026 rates.
Maintain this project?
Link to this page from your README, so readers find the facts, the notes and where it fits. The badge is a small SVG served from this site.
[](https://tax-oss.com/projects/open-source-tax-tooling/)