IRS filing
File your IRS yourself this year
If you invoice through Descodify, your income data is already here. No manual re-entry, no spreadsheets. Walk through each step, get your completed declaration, and upload it to the AT portal yourself. Free for Anexo B (simplified regime) during early access.
Your invoicing data, pre-filled
Income you invoiced through Descodify flows straight into your IRS values. No copy-pasting, no re-entry.
Free for simple cases
Anexo B, simplified regime, no foreign income. Free during early access. The published rate is €49.
IRS is one part of the year
The same platform handles your invoicing, VAT, and Social Security all year. IRS filing connects to what you already track.
How it works
Every step is free during early access. No feature gates, no delivery charge.
Upload your previous declarations
Upload 1-3 comprovativos de entrega (the official PDFs from AT). See every field explained - what it means and what to do. 100% browser-based - your file never leaves your device.
Free
Compare years
See what changed between years: income deltas, new or dropped annexes, inconsistencies. If your filings are structurally identical, that's a strong signal you can file yourself.
Free
Confirm your situation
Quick questionnaire: same address? Same activity? Marital status? Dependents? New income sources? Descodify gives you a confidence score based on how much changed.
Free
Enter your values
Fill in your income, expenses, and other details for the current tax year. If you invoice through Descodify, your income figures are already here - no manual re-entry. Otherwise Descodify guides you through each field.
Free
Get your completed declaration
Descodify generates your completed Modelo 3 XML - download and upload directly to the AT portal. Not comfortable with XML? Use the guided walkthrough instead: every field shows its pre-filled value with a one-click copy button. Copy individual fields or copy your entire declaration at once. Step-by-step AT portal navigation included for both paths.
Free during early access · €49 published rate
Why file yourself?
<30 min
for a standard Anexo B declaration - from upload to done
0
tax knowledge required - every field explained, no jargon
Free
during early access - no payment required to complete your declaration
Learn more about IRS
Do I need an accountant for my Portuguese IRS?
Honest answer: it depends. Here's how to figure out which you are.
How to file your IRS in Portugal: step-by-step
Annexes, Portal das Finanças navigation, and what trips people up.
IRS 2025: what changed for freelancers in Portugal
IRS Jovem expansion, IFICI replaces NHR, IAS increase. What matters.
The IRS cycle nobody told you about
7 phases across 12 months - most happen before April.
How to read your comprovativo
Every field explained - what the PDF actually says.
IRS tax brackets 2025/2026
Progressive rates from 14.5% to 48%.
IRS annexes explained
Which annexes apply and what each one contains.
Start with last year's declaration
Upload your comprovativo and see what was filed. It takes 2 minutes and it's completely free.
Upload your comprovativo