Simplified or full invoice: which one each sale needs
In Spain, a sale to a private customer can usually be invoiced as a simplified invoice. How it differs from a full one, and when the customer will ask for the other.
AloManagerPublished Oct 11, 2026 · 1 min read

Most counter sales are to private customers who do not need an invoice with their details. For those there is the simplified invoice: quicker to issue and fully valid.
Main differences
| Aspect | Simplified | Full |
|---|---|---|
| Customer details | Not needed | Name, tax ID and address |
| Series | Its own | The invoice series |
| Usual use | Sale to a private customer | Companies and professionals |

When the customer asks for a full one
If a freelancer or a company asks for an invoice with their details, issue a full one from the start: it saves correcting it later.