Pick an invoice number you won’t regret in six months

The best sequence is boring: unique, readable and easy to continue. A prefix plus a padded number works for many solo businesses.

Start with a plain sequence

INV-0001, INV-0002 and INV-0003 sort properly and leave room to grow. Don’t put private client information in the number.

If you include the year

A format such as INV-2026-001 can help with filing. Decide whether the final counter resets in January, then use the same rule every time.

Correct mistakes without creating a duplicate

Keep a record of the original number and follow the accounting rules that apply to your business. Local requirements differ, so this page isn’t legal or tax advice.

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Your details
Client details
Line items

Your business
invoiceINV-0001
Issued2026-08-28
Due2026-09-11
FromYour business
Bill toClient
DescriptionQtyRateTaxAmount
Subtotal$0.00
Discount$0.00
Tax$0.00
Total$0.00