How to Open Recibos Verdes Activity at Finanças (2026)
Exact walkthrough of opening freelance activity at Portal das Finanças. Activity codes (art. 151 or CAE), IVA decisions, the 12-month SS exemption, what to do same-day.
Contents
Opening freelance activity (início de atividade) at Portal das Finanças is the single act that converts you from “person with a NIF” to “person who can legally invoice clients in Portugal”. It’s free, takes about 15 minutes online, and triggers two automatic benefits that save €5,000-€10,000 in the first year.
This guide is the exact step-by-step process for 2026, with screenshots of the key screens.
What “opening activity” actually does
The single registration triggers four things automatically:
AT registration
Cat B
You can issue recibos verdes
SS registration
Auto
Communicated by AT to Segurança Social
12-month SS exemption
Free
Automatic if first time
First IRS year-1
−50%
Reduces taxable base if you're not a Cat A taxpayer
You don’t need to file separate paperwork at Segurança Social or anywhere else. The AT registration is the only entry point.
The 8-step walkthrough
Log in at Portal das Finanças ↗
Go to portaldasfinancas.gov.pt and click “Aceda ao Portal” in the top-right. Use your NIF + password.
If you don’t have a password: click “Pedir senha”, fill the form, and AT will mail it physically to your registered address (~5 working days). There’s no email or SMS option - it’s mail-only. Plan for this delay.
Aceda ao Portal
NIF
Número de identificação fiscal
Senha
••••••••
Schematic - actual UI may differ. Illustrates layout, not exact pixels.
Navigate to 'Início de Atividade'
Once logged in, search “Início de atividade” in the top search bar (or navigate via Cidadãos → Início de Atividade). Click “Entregar Declaração” to start the form.
This is the same form used for both new freelance activity and re-opening (re-início). If you’ve had freelance activity in the past 5 years, the system will detect it and your year-1 IRS reduction won’t apply - but the form is the same.
Choose your activity code (art. 151 table or CAE)
This is the most consequential decision, and it isn’t a free choice: the code has to describe what you actually do.
- If your profession is on the art. 151 table - the CIRS list of professions, from programmers and designers to consultants, engineers, translators, doctors and teachers - you register under that 4-digit code. Its income goes in Anexo B field 403 and 75% of it is taxable (the 0.75 coefficient).
- If it isn’t on the table, you register with a CAE code instead. Services then count at 0.35 (field 404); sales, restaurants and hotels at 0.15. See the recibos verdes guide for how the coefficients work.
- 1519 “Outros prestadores de serviços” is the table’s catch-all, for purely service work that no specific code describes. Using it when a specific code exists is a wrong registration.
The profession behind the code also decides whether your income can qualify for IFICI (see the HVAA list).
Codes expat freelancers use most (all 0.75):
- 1332 - Programadores informáticos (software, web and mobile developers)
- 1313 - Analistas de sistemas (systems analysts)
- 1336 - Designers (graphic, UX/UI, product and web design)
- 1320 - Consultores (management, business and IT consultants)
- 1334 - Tradutores (translators)
- 4013 / 4014 - Contabilistas / Economistas
- 8011 / 8012 - Formadores / Professores (trainers and teachers)
Not sure which one matches your work? The art. 151 code finder takes a job title in English and returns the code and its coefficient. If you do several things, pick the code for your main activity; you can add secondary ones on the same form.
Cidadãos › Atividade › Início de atividade
Atividade exercida
Código CIRS (tabela do art. 151.º)
1332 - Programadores informáticos ▾
Código CAE
-
Atividades secundárias (opcional)
-
Data de início
01-01-2026
Schematic - actual UI may differ. Illustrates layout, not exact pixels.
Set your expected annual income
AT asks for an expected gross annual income (volume de negócios previsível). This determines:
- Whether you’re below the IVA exemption threshold (€15,000 for 2026)
- Initial Social Security contribution base estimate
Be realistic but conservative. You’ll declare actual income quarterly to Segurança Social anyway. Most first-time freelancers underestimate their first year - that’s fine, the contribution base is recalculated each quarter based on actual income.
Choose your IVA (VAT) regime
Three options:
- Isento (Article 53) - VAT-exempt because you’re below €15,000 expected gross. Simplest. Default choice for most starting freelancers.
- Sujeito a IVA com possibilidade de renúncia à isenção - register for VAT voluntarily even if below threshold. Useful if your clients are businesses who can deduct the VAT.
- Sujeito a IVA - required if expected income exceeds €15,000.
If you’re uncertain, start with Isento (Article 53). You can re-register for VAT later if your income grows.
Select 'Regime Simplificado' (simplified regime)
Two regime choices:
- Regime simplificado - what 95% of freelancers under €200k use. Presumed 25% expenses by formula; minimal bookkeeping.
- Contabilidade organizada - full accounting with a contabilista. Required above €200k gross or by election.
Pick Regime simplificado unless you specifically need contabilidade organizada (very high earners with documented expenses
25% of gross).
Provide your IBAN for refunds
Enter the IBAN of your Portuguese bank account. AT uses this for:
- IRS refunds at year-end settlement
- IVA refunds (if VAT-registered)
- Any other AT-side overpayment returns
Foreign IBANs technically work for SEPA but cause delays - use a Portuguese account if you can.
Review and submit
AT shows a summary of all your selections. Verify:
- The activity code (art. 151 or CAE) matches what you actually do
- Expected income is realistic
- VAT regime is what you want
- IBAN is correct
Click “Submeter”. You’ll get a comprovativo (receipt) PDF immediately - save it. Activity is now live as of the date you submit.
Cidadãos › Atividade › Início de atividade
Atividade aberta com sucesso ✓
Data de início
01-01-2026
Atividade
1332 - Programadores informáticos (art. 151.º CIRS)
Regime
Simplificado
Regime IVA
Isento (Art. 53 CIVA)
Comprovativo
Disponível para descarga
Schematic - actual UI may differ. Illustrates layout, not exact pixels.
What happens next (automatically)
In the days following submission:
| Day | What happens |
|---|---|
| Same day | Activity is open at AT. You can issue recibos verdes immediately. |
| 1-5 days | AT communicates to Segurança Social. You’re enrolled in the self-employed regime. |
| 2-7 days | SS sends a confirmation letter to your registered address with your inscription number. |
| Month 1 | First Quarterly Income Declaration form appears in SS Direta - but contributions are zero (12-month exemption). |
| Month 13 | First non-exempt SS contribution due. |
You don’t need to do anything during this window besides start invoicing clients.
Coming up for recibos verdes
- SS quarterly declaration (Jul-Sep 2026) · Recibos verdes (self-employed)
- IVA Q3 declaration (payment by Nov 25) · VAT-registered freelancers and businesses (trimestral regime)
- Last day to contest your 2025 IRS assessment (reclamação graciosa) · Anyone whose 2025 IRS assessment looks wrong or too high
Get a reminder a week before each one.
One short email a week before each deadline on this calendar (Segurança Social quarterly, IVA, IRS, IMI), with the walkthrough for that step, plus a note when the rules change. Usually one to three emails a month; unsubscribe any time.
Common mistakes
Wrong activity code. Picking a “close enough” code that doesn’t match your activity can cost you IFICI eligibility or trigger AT inquiries, and it changes the coefficient. Registering a profession that’s on the art. 151 table under a CAE code taxes 35% of your income instead of 75% - an under-declaration AT can correct later, with interest. Going the other way overpays IRS for years. And 1519 is only for work no specific code describes.
Forgetting to opt for IVA exemption. Default behavior for incomes above €15k is to register for VAT. If you’re unsure of your first-year income but expect to stay below €15k, explicitly select Article 53 isenção.
Opening activity before getting paid. You can only legally invoice after the activity is open. If a client wants to pay you for work done before registration, you can’t issue a fatura with their NIF - costs you the deduction on their side and looks unprofessional.
Re-opening within 5 years of a previous closure. Re-opens reset many benefits. The year-1 IRS reduction has a 5-year prior-activity exclusion; the SS first-year exemption has a 3-year exclusion. If you closed activity in 2023 and re-open in 2026, you don’t get year-1 benefits.
Closing activity (cessação)
If you stop freelancing, close the activity at Portal das Finanças within 30 days. Failing to close means SS keeps assessing contributions based on your last declared income, even when you’re not earning.
Process is the inverse: same menu, “Cessação de Atividade”, same form flow. Closure is also free. Full walkthrough in the close activity (cessação) guide, including the 5-year reset clock for re-opening later.
What to do same-day after opening
Once the activity is live:
- Update your invoicing workflow - start issuing recibos verdes via the AT portal (see Issuing a Recibo Verde guide)
- Confirm SS Direta access - register at seg-social.pt if you don’t have an account; you’ll need it for quarterly declarations
- Check Portal e-Fatura settings - make sure your NIF is set up to capture business expenses for the 15% justification rule
Then run your first-year tax estimate in the calculator - toggle Year 1 + the 12-month SS exemption checkbox to see what you’ll keep.
Sources
Try the numbers for your situation
See your freelancer net - IRS, IVA and Segurança Social.
Same engine that powers the examples in this article.
Open calculator →Stay ahead of the quarterly SS + IRS deadlines.
Once you're issuing recibos verdes, quarterly Segurança Social declarations and the annual IRS filing kick in. Get a plain-English email before each deadline. No drip campaign.
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