Invoice Number Generator (Free)

How it works

1. 1
   Choose your numbering format

   Select from common formats like sequential (001, 002, 003), date-based (2024-001), or custom patterns with prefixes and suffixes.

2. 2
   Set your starting number

   Enter the number where you want to begin your sequence. The generator will increment from this starting point.

3. 3
   Customize with prefixes/suffixes

   Add prefixes like 'INV-' or suffixes like '-2024' to create branded invoice numbers that match your business style.

4. 4
   Generate the sequence

   Click generate to create a list of invoice numbers following your chosen pattern and starting point.

5. 5
   Copy and use

   Copy the generated numbers and use them in your invoices, spreadsheets, or accounting software to maintain consistency.

Frequently asked questions

• Do I need an account to use invoice tools?

  No. Most invoice tools are designed to work without signup.

• Can I add my logo and branding?

  Yes. Where supported, you can add a logo and business details for a professional look.

• Are totals calculated automatically?

  Generators and Excel templates handle calculations; always review before sending to clients.

• Can I edit the files later?

  Yes. Word/Excel templates are editable, and you can regenerate PDFs anytime.

• Is this compliant in my country?

  Invoice requirements vary. Add any legally required fields for your region.