Issue an invoice

From draft to issued invoice, the difference between an invoice and a simplified invoice, and what NaPa does when you issue.

In Invoices, press New invoice.

1. Choose the type: Invoice (with the customer's details) or Simplified invoice (no identified customer, up to €400 including VAT).
2. Choose the customer and add the lines: description, quantity, price and each line's VAT (or the exemption reason). If the customer applies IRPF withholding to you, set it on the line.
3. NaPa works out the base, the VAT, the withholding and the total. You can Save draft and carry on later.
4. Press Issue. If you don't set a date, it's issued with today's.

What happens when you issue

• The invoice gets the next number in its series, with no gaps.
• It's frozen: it can no longer be edited. To fix it, issue a corrective invoice or, if it was issued by mistake, cancel it.
• NaPa creates its journal entry and records its VAT in the VAT register, which feeds Form 303.
• With VERI*FACTU, it sends its record to the AEAT (what is sent).

You can't issue with a date in a closed period.

Updated 14 October 2026