Instead of QuickBooks

Invoicing, expenses and books for small businesses.

Partly

Invoicing is solved. Bookkeeping that an accountant will accept is a harder sell, and the answer depends on your accountant.

You lose: Your accountant's familiarity, and the tax filing integrations.

Start here

Invoice Ninja

Elastic-2.0an eveningactive

Invoices, quotes and payments. Not full double-entry books.

github.com/invoiceninja/invoiceninja invoiceninja.com

A compose file, a domain and a reverse proxy.

Also worth a look

Firefly IIIAGPL-3.0an eveningactive
Proper accounting, no invoicing workflow.
github.com/firefly-iii/firefly-iii firefly-iii.org
ERPNextGPL-3.0a projectactive
Everything, including the payroll and the consultant.
github.com/frappe/erpnext frappe.io/erpnext

Facts checked 8 November 2026. Licences, activity and archive status come from each project's own repository; the verdict and the cost lines are the desk's.