Browse free open source Accounting software and projects for Windows below. Use the toggles on the left to filter open source Accounting software by OS, license, language, programming language, and project status.
Personal and small-business finance manager
Open source ERP and CRM web software for business
uniCenta oPOS - dynamically evolving POS project
SME Accounting package, General Ledger, Debtors, Creditors, Stock
Free Desktop book-keeping software for small-businesses & freelancers
A full ERP system - moved to GitHub. See full description for details.
Free & Open Source Invoice App for Freelancers & Small Businesses
Calculates income tax form entries, helps do your taxes.
Accounting & Best Practice Business Administration System
Accounts35.zip is a MS Excel VBA Software of Financial Accounting
Online Accounting Software
A portfolio tracking, analytics, accounting and tax reporting app
Accounting system for smaller companies written in GnuCobol.
jBilling is a web-based enterprise billing system.
Free and Open Source Invoicing, Expenses & Time-Tracking
Free and Online Accounting Software
Enterprise project management replacement for Project Server