Invoice Number Generator
Generate professional invoice numbers (INV-2026-001, CLIENT-2026-0001, YYYYMMDD-001, or custom prefix). Keep numbers sequential, unique, and easy to audit.
This tool is for informational purposes only. It is not accounting, tax, or legal advice. Always verify CRA, Revenu Québec, and provincial rules before invoicing.
Numbering
Generate an invoice number
Best practices
Use one sequence per business, never reuse numbers, and avoid gaps that look like missing invoices. Just Invoice assigns sequential numbers automatically when you create invoices in the app.