Working as a trabalhador independente is Portugal’s standard route for many freelancers, consultants and independent service providers. You normally open activity with the Tax Authority (Finanças), invoice through the electronic recibos verdes system and deal with IRS, IVA and Social Security in your own name. This is not the same as creating an Lda. company.

In one sentence: if you regularly work for yourself as an individual, open activity before starting, choose the correct activity and tax settings, issue invoices/receipts through Portal das Finanças and then keep up with tax and Social Security obligations.

Trabalhador independente, ENI or company?

A trabalhador independente provides services or carries on qualifying activity personally. An Empresário em Nome Individual (ENI) is a business form and is not simply another name for a freelancer; gov.pt’s dedicated independent-worker guide explicitly separates company/ENI situations. An Lda. or unipessoal is a separate company structure. If you are choosing between them, first read our guide to Portuguese business legal forms.

1. Open activity with Finanças

If the work is regular rather than genuinely one-off, submit a declaração de início de atividade before you begin. You can do this through Portal das Finanças; gov.pt also provides a direct open-activity service guide.

You will be asked for information including your activity code, expected turnover and tax/VAT position. Choose the activity that describes what you actually do. Depending on the work, this may involve a CAE code and/or a professional activity code under Article 151 of the IRS Code. Check SICAE and the Finanças guidance rather than copying another freelancer’s code.

2. Simplified regime or organised accounting?

For IRS, many people starting out use the regime simplificado. Under this system, taxable income is calculated using statutory coefficients rather than simply treating every euro received as taxable profit. Contabilidade organizada uses formal accounts and requires a certified accountant. According to current gov.pt guidance, organised accounting is mandatory when annual income exceeds €200,000, although a person below that level can opt for it.

Do not interpret “simplified” as “no records needed”. Your activity code, type of income, validated expenses and personal circumstances can affect the IRS result. For substantial income, mixed activities or cross-border work, professional tax advice can easily be worthwhile.

3. What exactly is a recibo verde?

Recibos verdes are the electronic documents used by independent workers in Portal das Finanças. The terminology matters:

  • Fatura: issue this when you bill the client but have not yet been paid.
  • Recibo: records the payment after an earlier invoice.
  • Fatura-recibo: use when invoicing and receiving payment at the same time.

In Portal das Finanças go to the invoices/receipts area and choose the appropriate document. The current government guide gives a step-by-step explanation: tax and contribution obligations for independent workers.

4. IVA (VAT): do you add it?

Do not assume that every green receipt has 23% IVA. The answer depends on the service, turnover, customer and place-of-supply rules. Some activities can be exempt by their nature under Article 9 CIVA. The small-business exemption under Article 53 CIVA can also apply when its conditions are met; the government’s current 2026 guide states a €15,000 annual turnover threshold for this regime.

If you are in the normal IVA regime, you generally charge the applicable IVA and submit periodic IVA returns. Mainland Portugal’s normal rate is 23%; Madeira and the Azores have their own rates. Always check the current official IVA guide.

5. Foreign clients and EU clients

Foreign clients do not make the income invisible to Portugal. For an EU business customer, B2B place-of-supply/reverse-charge rules commonly mean Portuguese IVA is not charged when the conditions are satisfied; validate an EU VAT number through VIES and use the correct transaction classification. B2C, digital services and special categories can work differently. Clients outside the EU also require the correct place-of-supply treatment. Use the current Finanças/gov.pt rules for the actual transaction rather than applying “foreign client = no VAT” as a blanket rule.

6. IRS withholding is not the final tax bill

A receipt may require retenção na fonte (IRS withholding), depending on the payer, activity, income and applicable exemption. Withholding is an advance payment toward annual IRS, not a separate final tax. The annual IRS return reconciles your actual liability. Select the withholding option that legally applies to the transaction rather than treating the Portal’s dropdown as a personal preference.

7. Social Security: the first year is special

Opening activity with Finanças is communicated to Social Security. For a person’s first-ever period as an independent worker, compulsory coverage generally starts on the first day of the 12th month after the month activity began. You can request earlier coverage at a quarterly declaration point. This is a postponement of compulsory contributions, not a permanent “first-year discount”, and choosing not to contribute during that period means those months do not build the corresponding contribution record.

Once covered, most independent workers report relevant income through quarterly declarations in January, April, July and October and pay monthly contributions. Some people combining self-employment with qualifying salaried employment can be exempt from independent-worker contributions if the statutory conditions are met. Check your own position in Segurança Social Direta and the Social Security independent-worker information.

8. One genuinely isolated job: ato isolado

If you perform only a genuinely isolated transaction rather than an ongoing independent activity, an ato isolado may be possible instead of opening regular activity. Current official guidance distinguishes this from recurring freelance work. Do not repeatedly use isolated acts as a substitute for opening activity when the work is habitual.

9. Expenses and records

Ask suppliers for invoices with your NIF and keep business records. Under the simplified IRS regime, expenses do not operate exactly like company bookkeeping or organised accounting, but correctly classifying and validating invoices can still matter. Keep contracts, invoices, receipts and evidence for foreign transactions as well as the documents generated in Portal das Finanças.

10. Closing or changing activity

If you stop freelancing, do not simply stop issuing receipts. Submit the appropriate cessation of activity to Finanças. If your activity, address, codes or tax circumstances change, file an alteration where required. This prevents an activity from remaining open while declarations or other obligations continue.

A practical first-week checklist

  1. Confirm that independent work is the right legal route and that immigration/residence status permits the activity where relevant.
  2. Get/access your NIF and Portal das Finanças credentials or Chave Móvel Digital.
  3. Choose the correct CAE/CIRS activity code.
  4. Estimate turnover realistically.
  5. Understand whether Article 9, Article 53 or normal IVA applies.
  6. Choose simplified or organised accounting as appropriate.
  7. Open activity before regular work begins.
  8. Learn the difference between fatura, recibo and fatura-recibo.
  9. Check Segurança Social Direta and note when your contribution coverage begins.
  10. Put quarterly/annual tax and Social Security deadlines in your calendar.

Useful official links

Last verified: 2 October 2026. Tax thresholds, contribution values and filing rules change. Cross-border VAT and mixed salaried/self-employed situations are particularly fact-specific, so verify the current Finanças and Segurança Social treatment before invoicing.