The AEAT app may be enough
You issue 2–3 invoices a month and your adviser handles the rest.
You work alone and need no POS, integration, collections management or connected accounting. The free option does that narrow job well.
The AEAT's free app.
Scope and limits.
The free application of the AEAT, Spain's tax agency, generates compliant VeriFactu invoices. The question is not whether it works: it is what happens when that invoice has to live alongside the rest of your work.
Yes: the AEAT app is VeriFactu compliant.
It may be enough if you issue very few invoices and need nothing else.
Free · Official invoicing tool
The same invoice in the AEAT app and in Cofactu
- 01 The common task Invoice F-2026-0143 Estudio Norte SL · €2,480.00 · QR code · verifiable record
- 02 AEAT app Free Issue → send → compliant invoice. The journey ends here.
- 03 Cofactu Issue → collect → book. The same invoice carries on.
Same action.
Different consequence.
Both paths start from the same obligation. Read each row as a continuation of that same invoice, not as a list of isolated features.
| Task | AEAT free app | Cofactu | What changes |
|---|---|---|---|
| 01 · Issue an invoice | Compliant invoice · Hash, signature and QR code · VeriFactu submission to the AEAT | Compliant invoice · Hash, signature and QR code · VeriFactu submission to the AEAT | For this essential task, both options work. |
| 02 · Follow the transaction | The invoice is issued · No expenses or collections · No general journal | Collections and expenses connected · Journal entry from the transaction · General journal you can query | The difference appears when the invoice needs context after it is issued. |
| 03 · Work and prepare the quarter | Individual use · No POS or API · No tax returns | Team and accounting firm · POS, API and integrations · Tax returns and reminders | Cofactu covers a connected operation; the AEAT app focuses on invoicing. |
Both tools can generate compliant records. The AEAT app is not an incomplete version of VeriFactu: it is a different tool, focused on issuing invoices.
No column wins.
There is a context to serve.
| Job | AEAT app | Cofactu |
|---|---|---|
| 01 · VeriFactu document | Invoice, chained SHA-256 hash, electronic signature, QR code and submission in VeriFactu mode. | The same conformity pieces, built into Cofactu's invoicing flow. |
| 02 · Operations around it | No accounting or general journal; no management of expenses and collections, POS, customers or basic CRM either. | Includes accounting, expense and collection management, POS and customers within the same operation. |
| 03 · Scale and connection | No multi-user access for a team or accounting firm, no API and no automated recurring invoicing. Invoice customisation is limited. | Includes multi-user access, an API, recurring invoicing and brand customisation on invoices. |
| 04 · Tax follow-up | It does not prepare Modelo 303, 130 or 111 (Spanish tax returns), nor give automatic alerts on certificates and tax deadlines. | Prepares tax returns and gives alerts on certificates and tax deadlines. |
Price: the AEAT app is free. Cofactu has a free plan with unlimited invoices and plans from €39/month with banking, tax returns and a team.
The right option depends on what happens next.
Cofactu fits when
The invoice has to keep working inside your business.
You need accounting, tax returns, expenses, collections, payroll, a team, an accounting firm, POS, e-commerce or automations without keying the same data twice.
See electronic invoicing →
A free option is good
when it is genuinely enough.
The AEAT's application means no taxpayer is left without a way to comply with VeriFactu for financial reasons. There is no need to discredit it: if you invoice very little and need no more operations, it may be the right option.
Cofactu is designed for a different case: an invoice that feeds accounting, taxes, collections, the team and the accounting firm in the same system.
The questions that matter
before you choose.
Back to the VeriFactu guide → Is the AEAT's free invoicing app VeriFactu compliant?
Yes. The free invoicing application of the AEAT (Spanish Tax Agency) generates VeriFactu-compliant records: chained SHA-256 hash, electronic signature and a QR code on every invoice. It is an official reference for meeting the regulation.
Who is the AEAT app enough for?
For very low-volume taxpayers who only need to issue 2-3 invoices a month and need nothing else. If you need accounting, tax returns, expense management, teamwork or integration with other tools, the AEAT app does not cover them.
Can I use the AEAT app and Cofactu at the same time?
Technically yes, but it is not advisable. The VeriFactu hash chain is per series of invoices. Mixing two systems in the same series could cause inconsistencies in the chaining. The sensible approach is one system per invoice series.
Does the AEAT app have an invoice limit?
The AEAT does not publish an explicit invoice limit for its free application. It is, however, designed for low-volume taxpayers. For businesses with more activity, specialised software offers more functionality and a better experience.
What is the difference between the AEAT app and the SII?
They are different systems. The AEAT's free app is an invoicing tool for low-volume taxpayers, based on VeriFactu. The SII (Suministro Inmediato de Información, the Immediate Supply of Information) is the real-time VAT reporting system for large companies (mandatory above €6 million turnover), which are exempt from VeriFactu.