Invoice Number Generator
Generate invoice number formats.
Keep or share the finished result
Copy or share after running the tool. Saved tools and settings stay in this browser.
What would you like to do next?
Generate invoice numbers
Consistent invoice numbers make records easier to search and reconcile. Enter a prefix, customer code and sequence number to generate a formatted invoice number and nearby examples. It is useful for freelancers, agencies, small businesses and finance operations.
Use a consistent pattern
The generator creates a date-based invoice number format that is easy to scan.
Frequently asked questions
What format is used?
Prefix, date, customer code and four-digit sequence.
Can I use this in accounting software?
Check your accounting system before changing invoice number formats.
Does it store numbers?
No. It only generates text in your browser.