QuickBooks is the most widely used small business accounting software in North America. It handles invoicing, expense tracking, bank reconciliation, tax preparation, and payroll. The online version connects to your bank accounts and automatically categorizes transactions.

QuickBooks has been around since 1983 and dominates the US market with over 7 million customers. Most accountants and bookkeepers know it, which makes collaboration easy. The downside is a cluttered interface that has accumulated decades of features, and Intuit regularly raises prices on existing customers.