💰 Billing & Payments knowledge for cloud platforms

Crypto-currency tax calculator with support for all popular wallets, exchanges, explorers and migration from other crypto tax platforms

💰 International sales tax calculator for Node (offline, but provides optional online VAT number fraud check). Tax rates are kept up-to-date.

Factura Electrónica AFIP y otros servicios web (proyecto software libre) — Interfases, tools and apps for Argentina's gov't. webservices (soap, com/dll simil-ocx, pdf, dbf, xml, json, etc.) #python

Privacy-focused, free, open-source cryptocurrency tax calculator for multiple countries: it handles multiple coins/exchanges and computes long/short-term capital gains, cost bases, in/out lot relationships/fractioning, and account balances. It supports FIFO, LIFO, HIFO and it outputs in form 8949 format. It has a programmable plugin architecture

A tax calculator for stocks and dividends activities.

GitHub Sponsorsの確定申告手順

Calculate your taxes from cryptocurrency gains

The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.

💰 A simple and clean PHP library that validates EU VAT registration numbers against the central ec.europa.eu database (using the official europa API) 🇪🇺

💸 {Digital,Cloud,Electronic,Online} Services VAT Rate Database

CA property tax visualization

ERPNext application for Switzerland-specific use cases

A set of interfaces and methods to clean up your application's tax calculations

An implementation of Saudi Arabia ZATCA's E-Invoicing requirements, processes, and standards in TypeScript.

Sales Tax API Client for PHP 5.5+

DaLI (Data Loader Interface) is a data loader and input generator for RP2 (https://pypi.org/project/rp2), the privacy-focused, free, open-source cryptocurrency tax calculator: DaLI removes the need to manually prepare RP2 input files. Just like RP2, DaLI is also free, open-source and it prioritizes user privacy.

Parse Robinhood 1099 Tax Document from PDF into CSV

prepare German tax statement with Tastyworks transaction history

Parses App Store Connect (formerly iTunes Connect) financial reports and splits sales by their legally accountable Apple subsidiaries