Official guide · 5 min

From the AEAT app to Cofactu once it stops being enough

The AEAT's free VERI*FACTU app works perfectly well for minimal volumes — we mean that sincerely. But its own official listing documents that it doesn't allow exporting records to continue on other software. This guide explains the honest transition: your invoices stay with the AEAT with full legal validity, your series continues, and your new history starts on Cofactu.

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During the migration

Migrate with peace of mind — nothing gets lost along the way

Nothing to lose — literally

Your invoices issued in the AEAT app are already where they need to be: with the AEAT. They remain viewable in the portal with full legal validity. The transition doesn't erase or invalidate anything; it just changes where you issue invoices from now on.

Guaranteed series continuity

You set up the series to continue where you left off (2026-0015 after 2026-0014). Correlativity intact, a new VeriFactu chain starting clean — the standard procedure the regulation anticipates when changing invoicing software.

Decide at your own pace (and go back if you want)

30 days free to see if the management layer is worth €15/month to you. If you decide it's not — because your volume is still minimal — go back to the AEAT app at no cost. And with Cofactu you do get to take your data with you, as a ZIP export.

Step by step

Bring your data from AEAT free app

AEAT free app doesn't expose a public API: export your lists as Excel/CSV and our parser, tailored to its exact format, reads them.

Only method

Excel/CSV export from AEAT free app

Don't export anything — you can't (and that's fine)

~ 0 min

The AEAT's official listing documents it: records can't be exported to another SIF.

Your issued invoices remain viewable in the AEAT's online portal with full legal validity — Hacienda already has them, which is what matters. There's no need to re-issue them, duplicate them, or 'rescue' them. The only thing you need to note down: the last number of each series you used.

Add your clients to Cofactu

~ 5-10 min

Create your free account and add your regular clients (or upload them via CSV if there are many).

In the AEAT app you typed the recipient into each invoice. In Cofactu you add them once — with NIF validation included — and it auto-fills forever after. If you have just a few regular clients, this takes minutes.

Set up your series to continue the numbering

~ 1 min

Settings → Series → enter the last number issued in the AEAT app.

If your last invoice was 2026-0014, Cofactu issues 2026-0015. The regulation requires correlativity within the series, not that the whole history live in the same software. Cofactu's VeriFactu chain starts fresh with that first invoice, exactly as RD 1007/2023 anticipates when changing SIF.

Issue your first invoice with real management behind it

~ 2 min

Same VeriFactu validity you had — plus payments, recurring invoices, tax forms, and reconciliation.

If half your invoices go to the same client every month, turn it into a recurring invoice and forget about it. Mark payments, reconcile with your bank via PSD2, and file your quarterly VAT return (Modelo 303) from the same place where you invoice.

After migrating

What you get in Cofactu that you didn't have in AEAT free app

Before · AEAT free app

Payments under control
Recurring invoices that issue themselves
Tax forms built from your own data
Room to grow, no ceiling

Now · Cofactu

Payments under control

The AEAT app doesn't flag whether an invoice is paid, pending, or overdue — that tracking happens in a separate spreadsheet. In Cofactu every invoice has a payment status, due dates, reminders, and automatic reconciliation with your bank via PSD2.
Recurring invoices that issue themselves

A monthly fee to the same client becomes a recurring template that generates and sends itself, with its own VeriFactu record. In the official app every invoice is created by hand, one by one, authenticating with Cl@ve or a certificate each time.
Tax forms built from your own data

The quarterly VAT return (303), the 130, or the 111 are calculated from your actual invoices and expenses and filed with the AEAT from the same app. With the free app, invoicing and filing are separate worlds: you (or your accounting firm) put the forms together on the side.
Room to grow, no ceiling

Counter tickets (simplified invoices the official app doesn't issue), inventory, quotes, expenses with OCR, payroll, accounting all the way to the balance sheet. The day your business grows, the software is already there — no switching systems again.

Clean chain

Your VeriFactu hash chain starts clean with your first new invoice

Invoices you already sent to the AEAT from AEAT free app keep their CSV — we don't touch them. From your first invoice in Cofactu, the SHA-256 hash chain links up whole, signed, and verifiable, with no baggage from the past.

AEAT free app history imported and searchable
New chain linked and signed from day 1
Automatic repair if an invoice breaks the chain (error 4171)

Once you've migrated

File your AEAT tax forms directly from Cofactu

Where AEAT free app makes you download the file and upload it manually to the AEAT portal, Cofactu files it directly. Covers all 7 forms with the official CSV saved in an immutable audit log.

303 Quarterly VAT 111 IRPF withholdings 130 IRPF installment payment 115 Rental withholdings 190 Annual IRPF summary 347 Third-party transactions 349 Intra-EU transactions

FAQ

Preguntas frecuentes

The most common questions when migrating from AEAT free app to Cofactu.

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Is it really true I can't export my invoices from the AEAT app?

No, you can't — and we're not the ones saying it, it's documented in the AEAT's own official listing: 'It is not possible to export records to continue invoicing on another invoicing software system.' It's a known design limitation. The good news: you don't need to export them, because they're already on record with the AEAT with full legal validity.

Do I have to re-issue or duplicate my old invoices?

No. Re-issuing them would be incorrect (you'd be duplicating income). They stay where they are, viewable in the AEAT's portal. On Cofactu you only need to continue your series numbering and, if you want your history at hand for reference, save the PDFs you downloaded at the time.

Is it legal to switch software mid-year?

Yes, completely. The VeriFactu regulation (RD 1007/2023) anticipates a change of SIF: it requires correlativity within each series and that each system keep its own chain of records. Continuing the series on the new software and starting a clean chain is the standard procedure.

What if my volume is still minimal? Is it worth it for me?

Maybe not — and we'd rather tell you upfront: if you issue 2-3 invoices a month to regular clients, with no recurring invoices, no tickets, and no need to track payments, the AEAT's free app is a perfectly reasonable choice. Cofactu pays off once manual management starts costing you hours: recurring invoices, payments, tax forms, banking.

How long does it take to get up and running?

Less time than it takes to create an invoice in the AEAT app with Cl@ve: account signup (2 min), regular clients added (5-10 min), series configured (1 min), and your first invoice issued with a VeriFactu record. All in one sitting.

Can my accounting firm access my data?

Yes — invite your accounting firm with an accountant role and they can see your invoices, expenses, and tax forms without asking you for anything by email. In the AEAT app, third-party access goes through formal power-of-attorney procedures (IZ862/IZ863) and there's no multi-client panel for the firm.

Shall we get started?

Create your free account and start migrating from AEAT free app in under 5 minutes. If you get stuck at any step, we'll help you over chat.

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