Open Source Tax Software.
Every project is a real GitHub repository, stats refreshed from the source. One listing per repo, reviewed by the community, claimed by its maintainer.
Free and Open Source Enterprise Resource Planning (ERP)
A source-available invoice, quote, project and time-tracking app built with Laravel
A portfolio tracking, analytics, accounting and management application that protects your privacy
A Python library to provide functions to handle, parse and validate standard numbers.
Crypto-currency tax calculator with support for all popular wallets, exchanges, explorers and migration from other crypto tax platforms
Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)
USA Federal Individual Income and Payroll Tax Microsimulation Model
OpenFisca core engine. See other repositories for countries-specific code & data.
The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.
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