Tax filing made simple for autónomos
Prepare your quarterly and annual filings in minutes. Facturaz calculates each modelo and generates the official AEAT file, so you upload it and file in seconds.
Q1 2026 Tax Summary
January - March 2026
IVA Breakdown
Automatic calculations
IVA and IRPF calculated automatically from your invoices and expenses.
Never miss a deadline
Get reminded before every tax deadline. All AEAT dates built in.
Ready-to-file AEAT file
Facturaz generates the official .txt for every modelo. Upload it to the AEAT and you're done in seconds.
Store filing proofs
Upload AEAT confirmations and keep all tax docs in one place.
Everything you need
From calculation to the file you upload at the AEAT.
Tax calendar with reminders
See all deadlines at a glance with email and in-app reminders.
Tax Calendar
2026All modelos supported
303, 390, 130, 111, 190, 115, 180, 347 and 349, plus 200 and 202 for SLs.
Modelos calculados
Q1 2026También 190, 180, 347 · SL: 200 y 202
Download the file, file in seconds
Get the official AEAT .txt for any modelo and upload it at the AEAT.
Archivos para la AEAT · Q1 2026
.txt oficial, listo para subir
Audit agent
30 automatic checks on invoices, expenses and contacts before you file.
Audit T2 2026
3 findingsStore filing proofs
Upload and store your AEAT confirmation receipts.
Filing Proofs
Loved by autónomos and businesses
See what other autónomos say about invoicing with Facturaz.
"I use Facturaz mainly for my invoices and everything runs smoothly."
Amanda
"I really like that with Facturaz I can easily download the tax forms."
Raoul
"What I like most about Facturaz is how easy it is to upload expenses."
Elena
"GestorIA helps me understand what's really happening in my business, not just the totals."
Julio M.
Frequently asked questions
Everything you need to know about taxes in Facturaz.
Facturaz supports the main forms for autónomos: 303 and 390 (IVA), 130 (IRPF), 111, 190, 115 and 180 (withholdings), and 347 and 349 (informativas). For SLs it also generates 200 and 202 (Impuesto sobre Sociedades). For each one, Facturaz creates the official AEAT file, ready to upload.
Yes, you need a digital certificate (FNMT or another Spanish certificate) to file on the AEAT website. You log in to the AEAT with your certificate and upload the file Facturaz generated. Facturaz prepares the file but does not submit on your behalf.
Facturaz validates your data and warns you about potential issues before you file. If you need to correct a filed return, regenerate the file for the complementary or substitutive return in Facturaz and upload it at the AEAT.
Forecasts are based on your actual invoices and expenses, so they're as accurate as your data. As you add more transactions, forecasts update in real-time. They're great for planning, but final amounts depend on actual activity.
Yes, if you manage multiple businesses or clients, you can handle tax filings for each separately within Facturaz. Perfect for asesores managing multiple autónomos.
Ready to simplify your taxes?
Join others who file their taxes stress-free with Facturaz. Free until you start filing.