Business
Invoice Number Generator
- Browser-based
- No signup
Browser-based
Choose a prefix, optional date, and sequence number to generate a consistent invoice number such as INV-20260705-0042.
How to use this tool
1. Set a prefix such as INV or your company code. 2. Choose whether to include today’s date. 3. Enter the next sequence number. 4. Click Generate. 5. Copy the invoice number into your invoice or ERP system.
Worked example
Example: prefix INV, date included, sequence 42 → INV-20260706-0042 for a consistent numbering scheme.
How it works
Set a prefix, optional date, sequence number, and zero-padding to build a consistent invoice number such as INV-20260705-0042. Formatting runs locally in your browser.
Limitations
Generated numbers are for convenience only. Follow your accounting or legal numbering requirements.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Important notice
Generated numbers are for convenience only. Follow your accounting or legal numbering requirements.
Frequently asked questions
Will invoice numbers stay unique?
Uniqueness depends on your sequence counter. Increment the sequence for each new invoice and avoid reusing numbers.
Can I include a date in the number?
Yes. Enable the date option to embed YYYYMMDD between the prefix and sequence for daily batches.
What format should I use?
Use a short prefix (INV, company code) plus a zero-padded sequence so numbers sort correctly in spreadsheets.
Part of these workflows
This tool is one step in a longer job. Jump straight to your step or open the full workflow guide.
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