Invoice Number Generator
Generate professional invoice numbers in bulk. Choose from sequential, date-based, or random formats. Copy them to use in your invoicing workflow.
Configure
Generated Numbers
Click "Generate Numbers" to see results.
Best practices for invoice numbering
Do
- Use sequential numbers for easy tracking
- Include a date component for quick reference
- Keep the format consistent across all invoices
- Start from 001, not 1 (looks more professional)
Don't
- Reuse invoice numbers (SARS requires unique numbers)
- Skip numbers without documenting why
- Use overly complex formats that confuse clients
- Start at 1 if you want to appear established