Libros registro are structured VAT record books built from your invoices and expenses. See how to use tax reports and how to generate a libro registro for related workflows.

Open record books
- Select Record Books in the left navigation.
- Filter by book type and fiscal year if you are looking for an earlier period.
Generate a book
- Select Generate book.
- Choose the book type, period type, and fiscal year.
- Pick the month or quarter when the period type requires it.
- Confirm generation and wait for the summary to appear in the list.
Review and export
- Open a generated book to inspect row counts and VAT totals.
- Read warnings when source records need correction before filing.
- Export CSV, Excel, PDF, or SII XML when your advisor needs the file.