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kdeldycke /awesome-billing

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Star1k

💰 Billing & Payments knowledge for cloud platforms

finance marketplace awesome cloud telemetry accounting credit-card payments tax pricing data-engineering business-intelligence invoice awesome-list billing product-catalog metering fraud cost-management cost-forecast

UpdatedMar 10, 2025

BittyTax /BittyTax

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Star447

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

crypto bitcoin tax cryptocurrency tax-calculator hmrc cryptoasset capital-gains tax-calculations cryptotax tax-reports

UpdatedMar 14, 2025
Python

valeriansaliou /node-sales-tax

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Star316

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

sales tax vat invoice billing gst salestax vatmoss

UpdatedJan 6, 2025
JavaScript

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

privacy crypto bitcoin coinbase ethereum accounting tax cryptocurrency btc taxes eth international altcoin nft cost-basis capital-gains tax-report nfts 8949

UpdatedFeb 15, 2025
Python

reingart /pyafipws

Star307

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

python java php webservice json tourism dll visual-basic dotnet agriculture soap tax visual-foxpro cobol invoice xbase argentina dbf ocx foreign-trade

UpdatedMar 8, 2025
Python

doino-gretchenliev /revolut-stocks

Star199

A tax calculator for stocks and dividends activities.

irs tax bulgaria stocks bulgarian nap revolut bulgarian-national-revenue-agency

UpdatedApr 9, 2022
Python

azu /github-sponsors-tax

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Star166

GitHub Sponsorsの確定申告手順

github sponsors tax japan

UpdatedFeb 15, 2025

provinzio /CoinTaxman

Star154

Calculate your taxes from cryptocurrency gains

bitcoin coinbase german ethereum accounting tax germany cryptocurrency free taxation cryptocurrencies kraken binance tax-reporting bitpanda coinbase-pro steuererklaerung

UpdatedJan 2, 2025
Python

PolicyEngine /policyengine-us

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Star107

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

python tax policy economics united-states public-policy inequality poverty economic-policy

UpdatedMar 17, 2025
Python

kdeldycke /vat-rates

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Star94

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

csv tax vat-number tax-rate vat european-customers vat-rule vat-database territory european-businesses

UpdatedFeb 4, 2025

pH-7 /eu-vat-validator

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Star93

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

business company validation php7 tax eu vat-number eu-vat-validator eu-vat vies vat-validator vat-validation companies php-7 eu-api europa-api europa businesses vatin vat-valiration

UpdatedJun 25, 2024
PHP

typpo /ca-property-tax

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Star90

CA property tax visualization

politics tax election california economy hacktoberfest

UpdatedAug 29, 2022
Python

libracore /erpnextswiss

Star84

ERPNext application for Switzerland-specific use cases

tax banking erpnext erpnext-application

UpdatedFeb 26, 2025
Python

wes4m /zatca-xml-js

Star76

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

typescript xml tax invoice phase-2 phase-1 saudi zatca

UpdatedMar 8, 2024
TypeScript

spatie /tax-calculator

Sponsor

Star72

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

php tax calculations

UpdatedJul 3, 2024
PHP

eprbell /dali-rp2

Star71

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.