Steps
- Open the defaults
Go to Settings → Invoice & receipt defaults (Invoice defaults on a computer).
- Set your numbering
Enter an Invoice prefix such as INV- and the Next invoice no. Do the same for receipts with the Receipt prefix (for example RCPT-) and Next receipt no.
- Choose default payment terms
Pick Due on receipt, a Net term from Net 7 to Net 90, or Custom and enter the number of days.
- Add the text for your documents
Optionally, fill in the Invoice header and Invoice footer — for example a thank-you line or your bank details. They print on your invoice PDFs.
- Save
New invoices take the next number in sequence and a due date calculated from your terms. You can still change both on any single invoice.