Invoice Numbering
Understand how automatic invoice numbering works and how to customize it.
Steps
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1
Go to Organization Settings
Click the gear icon in the user menu and select Organization Settings.
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2
Find the numbering section
Scroll to the Document Numbering section to see the current invoice number format.
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3
Understand the format
The default format is
INV-YYYYNNNNwhere YYYY is the year and NNNN is a sequential number. Each year, the counter resets. -
4
Adjust the next number
You can set the next invoice number if you are migrating from another system. Numbers always increment — you cannot go backwards.
Tips
- Invoice numbers must be sequential for tax compliance in most EU countries.
- Quotes and credit notes use separate numbering sequences.
- The number is assigned when the invoice is finalized, not when the draft is created.