QuickBooks - Business runs better with QuickBooks, the #1 accounting solution for small business.
Grisbi - Accounting for everyone !
TurboCASH - TurboCASH Accounting Free and Open Source Accounting Software for Small to Medium Business.
Finice - Finice is a sophisticated Money Tracker that aims to bring together all your finances in a single place.
Xero - Xero is online accounting for your small business.
Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.