Frequently asked questions about Veri*factu, invoicing regulations and registration criteria (Part 2)

Taxation
WRITTEN BY Jaume Raventós i Jané
18 Nov, 2025 — 3 min
Frequently asked questions about Veri*factu, invoicing regulations and registration criteria (Part 2)

We continue with the second part of the questions that were left pending in the webinar on 4 November. In this article, we answer questions about issue dates, VAT registration, simplified invoices, deadlines, numbering, reverse charge and other common scenarios that affect day-to-day invoicing.

Below you can consult the FAQs with the answers to the most frequently asked questions during the webinar:

1. An invoice with an issue date of 2/11 and a transaction date of 31/10, is it recorded in the VAT register for October or November?

The company issuing the invoice must declare it according to the transaction date (October). The company receiving the invoice records it according to the date of receipt, which cannot be earlier than 2/11.

2. Is there a maximum amount for simplified invoices?

It is the same figure as before: €400.00 including VAT, and in certain cases it rises to €3,000.00 including VAT. To find out what these are, contact your advisor.

3. Can a transaction on the 1st be invoiced on the 30th? Is it 15 days or 1 month?

According to the Invoicing Regulations (RD 1619/2012), the company must issue the invoice before the 16th day of the month following the month in which the VAT became payable, if the recipient is another business or professional. Therefore, a transaction on the 1st can be invoiced on the 30th of the same month.

4. Is it advisable to check invoices received from suppliers?

Yes, they should always be checked, especially to verify that the information is correct and recorded properly. With Veri*factu, you can also check whether the invoice has been generated and/or communicated to the AEAT. Beyond this check, it does not involve any additional work.

5. How should I send the invoices to my advisor?

It will depend on the communication channel offered by your advisor. We recommend that you contact them to clarify any doubts.

6. Can invoices with reverse charge follow the same numbering?

Yes, they can follow the same numbering and date, although they can optionally be separated into different series if deemed appropriate, in order to have greater internal control.

With this second part, we conclude the compilation of questions from the webinar. We trust that the answers will help you manage your invoicing with legal certainty and in accordance with the Invoicing Regulations.

If you have specific cases or need a personalised review of your invoicing system, we are at your disposal to advise you.

Complete this guide on Veri*factu and invoicing regulations with Part 1, where we answer questions about obligations, compatible programmes and managing errors or duplicates.

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