If you only need to issue full invoices and stay compliant, the tax agency's own free app is the safest option and has no invoice limit. If you want something more comfortable with a mobile app, Zoho Invoice is the most complete free plan. And if your activity is tiny, Contasimple works with 12 documents a year. Every other "free" tool in this article has a catch, and each one is explained below.
From 2027 your software has to be a certified system under Verifactu, so the question is no longer what it costs but how long it will last you.
Five criteria. These are what the nine tools were judged against.
A published Verifactu responsible declaration. A website saying "Verifactu ready" proves nothing. The signed document does. If they do not publish it, ask for it in writing.
Spanish VAT and IRPF built in. If you have to set the withholding by hand on every invoice, that is where the mistakes appear.
What the free tier actually caps. There is almost always a limit: documents a year, clients, or a trial dressed up as a plan.
Whether you can export your data. The day you switch, your invoices have to be able to leave. Some tools do not allow it.
Simplified invoices. If you sell to consumers and issue tickets, not every tool can. It is the criterion people discover too late.
What it does: on 13 October 2025 the Spanish tax agency published its own free invoicing application on its electronic office. It issues invoices and sends the records straight to the tax agency under VERI*FACTU.
You reach it from the sede, under Información y servicios, IVA, Sistemas Informáticos de Facturación y VERI*FACTU.
Price: €0, with no paid tier behind it.
Verifactu: by definition. It is the tax agency's own software.
Pros
Cons
Who it suits: freelancers with low volume who invoice businesses or identified individuals, and who want to comply without paying or learning a new tool.
What it does: invoicing and expense tracking for Spanish freelancers, with VAT and withholding applied to your situation rather than configured by you.
Price: €0, with unlimited invoices and expenses. No cap on documents or clients.
Verifactu: yes.
Pros
Cons
What it does: issue and send invoices and estimates, capture expenses with the camera, track time and take payment online. Native iOS and Android apps included.
Price: €0, with no invoice limit.
Verifactu: yes, and it publishes its responsible declaration on its own site.
Pros
Cons
What it does: invoicing and accounting for freelancers and small companies. Spanish tool.
Price: Básico €0, capped at 12 documents a year, 10 clients and 5 products. The next tier is €10.95 a month on annual billing, or €12.95 quarterly.
Verifactu: yes, with a published responsible declaration.
Pros
Cons
What it does: invoice and take payment from a phone. It comes from the card reader world, so the logic is mobile first.
Price: free to activate.
Verifactu: it says it is compatible with Verifactu and TicketBAI depending on the territory. It does not publish its responsible declaration.
Pros
Cons
Included because it appears on every "free software" list and it has no free plan.
Price: 30-day trial with all features, no card required. After that, Básico €6.60 a month on annual billing or €8 monthly, Pro €14 or €17, Ilimitado €23 or €28.
Verifactu: yes, with a published responsible declaration and compliance seal. Unlimited Verifactu, Facturae and TicketBAI invoices on every plan.
Pros
Cons
What it does: open source invoicing and accounting with a Spanish community behind it.
Price: the software is free. Hosting and maintenance are not.
Verifactu: if you install it yourself, in many cases you become the one answerable for that system complying. The responsible declaration is signed by whoever produces the software, and an open project you installed does not fit cleanly into that.
Pros
Cons
What it does: the same as the above, but international in origin.
Price: free self-hosted, with paid tiers on its hosted version.
Verifactu: same problem, worse, because it is not built for Spain.
Pros
Cons
What it does: the official government application for issuing invoices in the Facturae format.
Price: free.
Verifactu: it does not solve it. It exists for invoicing public administration, which is a separate and older requirement. Do not confuse it with the tax agency app at the top of this article. They are different things.
Pros
Cons
They are not lying. The limit is placed exactly where you are going to land.
The document count. Twelve a year sounds like a plan. It is one invoice a month. Check how many you issued last year.
The client count. Several tools cap clients, not invoices. With lots of small jobs, that ceiling arrives first.
The trial dressed as a plan. Thirty days is not a free plan.
The way out. Check whether you can export before you go in, not the day you want to leave.
1 January 2027 for companies and 1 July 2027 for the self-employed. Before those dates, use is voluntary.
From your date, every invoice has to come out of a certified system that produces an unalterable record and a QR code. Word, Excel and PDF templates stop counting.
There is no official list of approved software. It works through the vendor's own responsible declaration, so "approved by the AEAT" on a marketing page means nothing.
Software without that declaration is not cheap. It has an expiry date, and the responsibility for invoicing through a valid system is yours, not theirs. The dates are in Verifactu entry into force.
The order is the same in any tool: set up your details and your withholding once, save the client, and after that you only issue.
When you pay for the tier above just to unlock one thing. If you are going to pay, compare properly instead of stepping up out of inertia.
When the tool does not prepare your returns. Reconciling form 303 by hand every quarter has a price even if it never appears on an invoice.
When a mistake costs more than the subscription. Withholding applied wrongly across four quarters is fixable, but not for free.
If you issue few invoices and all of them to identified recipients: the tax agency app. Free, unlimited and zero compliance risk. Accept that you will not be able to export.
If you want unlimited invoicing with Spanish tax rules handled: renn Copilot, which also lets you export.
If you want the most feature-complete free plan: Zoho Invoice, at the cost of configuring VAT and withholding yourself.
If your activity is tiny and you want something Spanish: Contasimple, knowing it is 12 documents a year.
If you issue tickets to consumers: neither the tax agency app nor Facturae will do. You need a commercial tool.
If you are technical: FacturaScripts, accepting that compliance becomes yours.
What not to do: pick on price without checking the responsible declaration. In 2027 a tool without one stops being an option, and the problem lands on you.
It depends on use. For compliance with no invoice limit, the tax agency app. For unlimited invoicing with VAT and IRPF already handled, renn Copilot. For more features and a mobile app, Zoho Invoice.
No. Every invoice must carry a recipient, so it cannot produce tickets.
Yes. Free and certified are not in conflict. What matters is the vendor's responsible declaration, not the price.
Until your 2027 date, yes. After that, no: the invoice has to come from a system that produces the record and the QR code.
Yes, but continue your numbering where you left it, and check first whether you can export your history. With the tax agency app you cannot.
From your 2027 date, yes, even for three. The obligation does not depend on volume.
Related: Best app for making free invoices / Verifactu entry into force / Online accounting platforms
