Cessação de Atividade
Closing Your Freelance Activity
The formal process of deregistering your self-employment activity with the Portuguese tax authority (AT). Closing activity has a 30-day deadline and triggers a final IRS declaration, a final Social Security reporting obligation, and (if you were VAT-registered) a VAT deregistration.
Cessação de atividade is the official notification to the Portuguese tax authority that you have stopped operating as an independent professional. Until you file it, AT considers you active, with all the IRS, VAT, and Social Security obligations that come with it.
The 30-day deadline
You must file within 30 days of your last day of activity (Art. 33 CIRS). The clock starts from the date you issued your last Recibo Verde, not from when you mentally "decided" to stop. Filing late is possible but constitutes a regulatory infraction and carries the risk of a coima (fine).
The process is on the Portal das Finanças: Cidadãos → Início / Cessação de Atividade. No notary, no accountant required. The portal walks you through a short form.
What closing triggers
IRS. You still file a Modelo 3 for the year activity ends. The declaration covers income from 1 January to your cessation date. The same simplified regime coefficients apply with no prorating. If your Art. 151 code had a 0.75 coefficient, 75% of every euro earned that year remains taxable regardless of how many months you were active.
Social Security. You owe contributions for every calendar quarter in which you had at least one active day. Your final Declaração Trimestral covers the quarter of cessation. Submit it by the 20th of the following month after the quarter ends. The base for that final quarter is your income from two quarters prior (the standard lookback, not an annualised estimate). If you earned nothing in the lookback period, the minimum base applies.
VAT. If you were VAT-registered, you must also file a VAT deregistration request through the portal and submit a final Declaração Periódica for the period up to the cessation date. If you were under the Article 53 exemption, no VAT action is needed.
Certified invoicing software. Once you close activity, you cannot issue further Recibos Verdes. If you use AT-certified software like Descodify, the software prevents you from issuing new invoices after the cessation date.
The 5-year reopening rule
If you close your activity and reopen a similar one within 5 years, you do not get the first-year IRS simplified regime discount again. The progressive entry (37.5% taxable in year 1, 56.25% in year 2, 75% in year 3+) is designed for genuine first-time registrations, not for cycling activity status. If you wait more than 5 years, the entitlement resets.
Common situations
Relocating abroad. You may need to close your Portuguese activity even if you intend to keep invoicing the same clients. If your tax residency moves, your AT registration should reflect it. Closing your Cat. B activity does not close your NIF; your NIF stays for life.
Switching to a company (Lda). Many sole traders close their individual activity when they form a Lda. The two are separate legal entities; the Lda needs its own CAE and VAT registration, which does not inherit from your personal activity.
Pausing, not closing. AT does not have an official "pause" mechanism. If you stop invoicing but do not formally close, you remain active and Social Security will compute minimum contributions based on the minimum base for quarters with zero income. Closing and reopening is the clean path for a genuine break.
Frequently asked questions
How do I close my freelance activity in Portugal?
Log in to the Portal das Finanças, go to Cidadãos > Início / Cessação de Atividade, and submit the cessação de atividade form. You have 30 days from your last day of activity to file. The process is online and does not require a notary.
What happens if I miss the 30-day deadline?
AT can declare the cessation retroactively from the date of your last invoice if you submit late. Missing the deadline is a regulatory infraction and may result in a coima (fine). If you stopped issuing invoices but never officially closed, you may still be considered active and liable for minimum Social Security contributions.
Do I still need to file an IRS return for the year I close?
Yes. You file a Modelo 3 for the year activity ends, covering income from January 1 to the cessation date. The same simplified regime coefficients apply to that partial-year income. There is no prorating of the coefficient: the 0.75 applies to every euro earned under code 1332 or other Art. 151 activities regardless of how many months you were active.
What happens to Social Security contributions when I close?
You owe Social Security for every calendar quarter where you had any active days. Your final quarterly Declaração Trimestral covers the quarter in which you ceased activity. Submit it by the 20th of the month following the quarter end. The base is calculated on your income in the reference period (two quarters prior).
If I plan to reopen as a freelancer in Portugal later, can I?
Yes. There is no penalty for reopening, but the first-year IRS simplified regime discount (37.5% taxable in year 1, 56.25% in year 2) does not restart if you already used it and you reopen a similar activity within 5 years of closing it. Reopening more than 5 years after closing resets the entitlement.
Related terms
The process of registering as a self-employed worker (trabalhador independente) with the Portuguese tax authority, officially starting your freelance activity.
Trabalhador IndependenteSelf-Employed WorkerThe Portuguese term for an independent worker or sole entrepreneur, the equivalent of a freelancer or sole trader in other countries.
Regime SimplificadoRegime Simplificado de Tributação · Simplified Tax RegimePortugal's simplified tax regime for solo entrepreneurs and small businesses, where taxable income is calculated using fixed coefficients applied to gross revenue.
Recibo VerdeGreen ReceiptA combined invoice-receipt (fatura-recibo) issued by solo entrepreneurs in Portugal through the Portal das Finanças when they receive payment for services.
IVAVATImposto sobre o Valor Acrescentado, Portugal's value-added tax, charged on most goods and services. The standard rate on the mainland is 23%.