Exempt supplies
Healthcare, training, insurance… with the correct exemption reason in the record, not a generic “exempt”.
Every invoice is born with its chained hash and its verification QR code, ready to be filed with the AEAT in real time, and leaves your returns —Modelo 303, 130, 390, 347…— all but finished.
No lock-in · cancel whenever you like · your data always exportable

The real app, not a mock-up.
“Three hours of consultancy at ninety euros for Metro de Madrid.” Factuza fills in the draft, you check it and issue it. The invoice comes out with its hash, its QR code and its chained record.
No artificial intelligence: dictation uses your own phone's speech recognition and an interpreter built on fixed rules. Same words, same result. Every time.

Drafts of Modelo 303 and Modelo 130 where every box explains where it came from: whether it is your own figure, a calculation by the engine or a rule from the tax catalogue, with its version.
Modelo 390, 347, 202, 349, 115 and 111 arrive during 2026. They are already in the product and they tell you they do not calculate yet: we would rather you read it here than discover it mid-quarter.
Factuza never files on your behalf. It calculates, explains and warns you of the deadline; the signature stays yours or your adviser's. That is a design decision, not a limitation.

How much you have invoiced and how that compares with last year. Who owes you and since when. And VAT recovery on bad debts, with the article 80.Cuatro deadlines watched for you.
Expenses go in by photograph: the reader pulls out supplier, net amount and VAT. If a legally required field is missing it tells you — but you decide whether to carry on.
Factuza
Almost any program can issue an ordinary invoice. These are the ones we have genuinely solved, with the legislation behind them.
Healthcare, training, insurance… with the correct exemption reason in the record, not a generic “exempt”.
Construction, scrap metal, intra-Community: no output VAT and the exact legal wording.
Fees and costs paid on the client's behalf: outside the net amount, outside the withholding.
5.2 · 1.4 · 0.5 % applied automatically when the recipient is on that scheme.
VAT falls due when you are paid, with the hard cut-off of 31 December the following year.
Only for recipients with a Spanish NIF, and outside the VeriFactu hash, exactly as the rules require.
Business or consumer, goods or services: every combination has its own treatment. Including the trap — an EU consumer is charged Spanish VAT.
XAdES-EPES validated against the official schema, for invoicing the public sector.
Prices per month, VAT not included.
The first 20 clients pay €6/month for the first year (€12/month thereafter).
Live issuing as soon as we open, free until 31 December 2026. You reach the January 2027 deadline with a year of practice behind you.
I have spent years building software on Microsoft technology for companies that cannot afford it to fail. Factuza came out of watching, at close quarters, what VeriFactu was about to mean for people who invoice from their phone, on a building site or between appointments.
There is no support team working shifts: I answer the email myself. And if one day Factuza stops being any use to you, you take your invoices in one click and go — no lock-in and no need to ask anyone's permission.
— Edu
And what happens if something breaks
The detail is in Privacy and the Legal notice, with our tax number and registered address.
One email a week with what actually affects you: VeriFactu, deadlines, grants for the self-employed and small businesses, and new obligations. If there is nothing worth saying that week, there is no email.
Next up: the countdown to VeriFactu. What has to be done before 1 January 2027 if you are a company, and why July 2027 is going to catch a lot of self-employed people out.
Double opt-in and unsubscribe in one click. We use your email address for the newsletter and nothing else; we never pass it on. Privacy.
No lock-in and no strings: if it does not convince you, export everything and go.