Invoice numbering
Set the prefix, suffix, next number, length and restart rule of your invoice numbers, and learn why numbers never change.
Every invoice gets a number the moment it is created. The number is given once and never changes, not even when you regenerate the PDF. Two invoices can never share a number.
Change the number format
- Go to Vite Invoice → Settings → Invoice.
- Open the Numbering tab.
- Under Invoice numbers, set the parts below.
- Click Save Changes.
| Setting | What it does | Example |
|---|---|---|
| Prefix | Printed before the number | INV- |
| Suffix | Printed after the number | -2026 |
| Next number | The next invoice will use this number | 1 |
| Number length | Digits, padded with zeros (3 to 10) | 5 gives 00001 |
| Restart numbering | Start again from 1 Every year, Every month, or Never | Never |
With prefix INV-, length 5 and no suffix, the first invoice is INV-00001, the next INV-00002, and so on.
Note: A fresh install starts with the prefix
INV-, the suffix-BD, length 5 and next number 1. Clear the Suffix field if you don't want a suffix.
Use the year and month
The prefix and suffix can include [year] and [month]. They are filled in from the invoice date.
- Prefix
INV-[year]-givesINV-2026-00001. - Prefix
[year][month]-gives202611-00001.
If you restart numbering every year, the prefix or suffix must contain [year]. If you restart every month, it must contain both [year] and [month]. Otherwise numbers would repeat, so Vite Invoice won't save the setting.
Changing numbers later
Changes apply to new invoices only. Existing numbers are never rewritten.
- You can move the Next number up, for example to continue from your old invoicing system.
- You can't set it lower than the last number already issued. The message reads "The next number must be higher than the last number already issued."
Warning: There is no way to renumber or delete issued invoices. This is on purpose: tax rules in many countries expect a continuous, unchangeable series.
Regenerating keeps the number
When you regenerate an invoice, Vite Invoice makes a new PDF with the current order data and design. The invoice number and the invoice itself stay the same. The order screen says so: "Regenerating keeps the number" followed by the number.
Other documents have their own series
Pro: Credit notes and proforma invoices have their own number series, separate from invoices. A fresh install starts them at
CN-andPF-. Set them in Settings → Credit Note → Numbering and Settings → Proforma Invoice → Numbering. See More documents.