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Frequently asked questions about Veri*factu, SIF and invoicing programmes (Part 1)
During the webinar on 4 November, some questions remained unanswered, particularly in relation to Veri*factu, Computerised Invoicing Systems (SIF) and the various invoicing programmes available on the market.
That is why we have prepared this Part 1, where you will find clear, practical and up-to-date answers on the main obligations, compatible programmes, simplified invoicing, the use of AEAT software and the management of errors or duplicates.

We answer all your FAQs about SIF and Verifactu in our latest webinar
On 4 November, our tax and accounting team organised a webinar dedicated to the new Computerised Invoicing System (SIF) and Verifactu, a session that brought together numerous professionals interested in understanding how this regulation will impact their day-to-day work.

Electronic invoicing and the new regulations on computerised invoicing systems: How does it affect your business?
From 2026, new requirements for computerised invoicing systems (SIF) will come into force. If you have a business or are self-employed, it is important to know whether this change affects you, especially if you create invoices using Excel, Word or even by hand.

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


