Green Receipts in Portugal: How to Issue Them, Calculate IRS, VAT and Social Security

Working freelance in Portugal means handling three tax obligations that catch most newcomers off guard: IRS, VAT and Social Security. Each one has its own logic, deadlines and traps. This guide lays them out in order, with the official 2026 figures and practical examples. No motivational filler.

What is a green receipt and who needs to issue one?

"Green receipt" (recibo verde in Portuguese) is the popular name for the invoicing document used by independent workers in Portugal. The official term is fatura-recibo (invoice-receipt) and it's issued directly through the Tax Authority's online portal, Portal das Finanças.

Definition and purpose of the fatura-recibo

The fatura-recibo serves two purposes in one document: it proves a service was rendered and that payment was received. Without it, the transaction doesn't exist for the Tax Authority.

• Proves service delivery to the client
• Forms the basis for IRS and VAT calculation
• Mandatory whenever you receive payment for services
• Automatically registered in your Portal das Finanças account and available to the client

Who qualifies as an independent worker?

Any individual who carries out a professional activity on their own account, without being bound to an employer by a labour contract, counts as a trabalhador independente. This covers:

• Freelancers in general (designers, developers, copywriters, consultants)
• Regulated liberal professionals (lawyers, architects, doctors, psychologists, certified accountants)
• Service providers working occasionally or on retainer
• Workers combining employment with independent activity
• Artists, trainers, translators, photographers, content creators

The key question: are you receiving money from a client for services, without a labour contract? Then you need to issue green receipts.

Isolated act vs. opening an activity

Not every freelancer needs to formally open an activity. For genuinely occasional, low-value services, the isolated act (ato isolado) allows issuing a one-off invoice through Portal das Finanças without a formal activity registration. If you plan to work regularly with clients, open the activity from day one. The isolated act is a fallback, not a strategy.

Isolated act vs. registered activity

Opening your activity as an independent worker

The process is fully online, takes under 30 minutes, and costs nothing.

What you need before you start

• Active NIF (Portuguese tax identification number)
• Access to Portal das Finanças (password or Chave Móvel Digital)
• CAE activity code or CIRS article for your professional category
• Portuguese bank IBAN for refunds
• Updated fiscal address

Step-by-step registration

1. Log into Portal das Finanças (portaldasfinancas.gov.pt)
2. Navigate to Cidadãos → Entregar → Declarações → Início de Atividade
3. Select activity type and IRS taxation regime
4. Choose VAT regime (Article 53 exemption or standard regime)
5. Confirm address and IBAN
6. Submit — your activity is active immediately

Simplified regime vs. organised accounting

One of the most consequential choices at registration. Most new independent workers enter the simplified regime, which applies fixed coefficients to gross income to determine taxable income. You stay in this regime while annual turnover stays below €200,000. Above that — or above €250,000 in a single year (more than 25% over the threshold) — you're moved into organised accounting in the following year.

Simplified regime vs. organised accounting

VAT regime: exempt or standard?

If your annual turnover stays below €15,000, you benefit from the Article 53 CIVA exemption. Your invoices show the mention "VAT — Exempt under Art. 53 of the CIVA". You don't charge VAT to clients but you also can't deduct VAT on your own professional expenses.

Note the rule introduced by Decree-Law 35/2025 (in force since 1 July 2025): if your turnover in the current civil year exceeds the threshold by more than 25>#/strong### (i.e. €18,750), you switch to the standard VAT regime immediately. The invoice that crosses that line must already include VAT, and you have 15 working days to file a regime-change declaration.

You can also opt voluntarily into the standard regime — useful when input VAT on significant expenses is worth claiming back.

How to issue green receipts in Portal das Finanças

The process is entirely online. No software to install, no paper forms.

Access the invoicing area

1. Log in to Portal das Finanças
2. Go to Cidadãos → Serviços → Faturação → Emitir Documento
3. Select Fatura-Recibo (paid on the spot) or Fatura (paid later)

Invoice or invoice-receipt?

• Fatura-recibo: use when you deliver the service and receive payment in the same moment
• Fatura: use when you deliver the service but payment is pending. When payment arrives, issue a separate Recibo

Most freelancers use the fatura-recibo. It covers both moments in one document.

Essential fields to fill

• Client's NIF: mandatory above €1,000 (recommended always)
• Service description: be specific. "Digital marketing consulting — March 2026" beats "Services"
• Gross amount: the agreed value
• VAT: applicable rate or exemption reason
• Withholding tax: if applicable

IRS withholding tax

Withholding is performed by the client when they have organised accounting (typically companies). The client deducts the withholding amount from your payment and pays it directly to the Tax Authority on your behalf. The 2026 rates under Article 101 CIRS:

• 23>#/strong### — professions listed in Article 151 CIRS (lawyers, doctors, architects, engineers, economists, certified accountants and others). This rate was reduced from 25% to 23% by the 2025 State Budget and held at 23% in 2026.
• 16.5>#/strong### — intellectual or industrial property income, or technical information
• 11.5>#/strong### — other activities not in the Article 151 table, and isolated acts
• 20>#/strong### — non-residents with scientific, artistic or technical activities

If your predicted annual income falls below the legal exemption threshold, you can request non-withholding by providing a written declaration to your client (Article 101-B CIRS). See the current 2026 IRS tax tables for the exact threshold.

Taxes and contributions: IRS, VAT, Social Security

Three obligations, three different logics. They don't overlap.

IRS - Category B under the simplified regime

Self-employment income falls under Category B of Portuguese IRS. In the simplified regime, your taxable income equals your gross income multiplied by a coefficient:

• 0.75 - general service provision (you pay IRS on 75% of what you invoiced)
• 0.35 - specific activities listed in Article 31 CIRS
• 0.15 - sales of goods, restaurants, hotels and similar

Progressive IRS brackets then apply to this taxable income. If you also earn employment income (Category A), both categories are added together — potentially pushing you into a higher marginal bracket. For the impact on take-home pay, see our guide on net salary in Portugal in 2026.

VAT - charge, declare, remit

Under the standard VAT regime, you must:

• Charge VAT on every invoice issued to clients
• Keep records of input VAT paid on professional expenses
• File the periodic VAT return (monthly or quarterly depending on turnover)
• Pay the difference between VAT charged and VAT recovered

VAT rates in Portugal (2026)

Social Security contributions

This is where most independent workers get lost. The logic comes down to three steps:

1. Quarterly relevant income = 70% of service revenue invoiced in the previous quarter (20% for goods sales, restaurants or hotels)
2. Monthly contribution base = quarterly relevant income ÷ 3
3. Monthly contribution = contribution base × 21.4>#/strong###

Worked example:

A consultant invoiced €5,400 in services in the previous quarter. How is the monthly contribution calculated?

• Relevant income: €5,400 × 70% = €3,780
• Monthly contribution base: €3,780 ÷ 3 = €1,260
• Monthly contribution: €1,260 × 21.4% = €269.64/month

In 2026, the contribution base has two legal limits:

• Minimum: contribution cannot fall below €20/month
• Maximum: contribution base cannot exceed 12 × IAS, i.e. €6,445.56/month (IAS 2026 = €537.13). Maximum contribution = €1,379.35/month

You can voluntarily adjust your contribution base by ±25% in 5% increments — useful for smoothing payments during slow months.

File quarterly income declarations through Segurança Social Direta (seg-social.pt) by the end of January, April, July and October. Monthly contributions are paid between the 10th and 20th of the month following the one to which they refer.

Tax deadlines you cannot afford to miss

Independent worker's tax calendar

The quarterly Social Security declaration

The most-forgotten obligation among new independent workers. Each quarter, you report the income earned in the previous three months. Social Security uses these values to recalculate your monthly contributions. Missing it doesn't just trigger a fine — it can distort your contribution basis and generate unexpected debt.

The annual IRS declaration — Annex B or C

Simplified regime → Annex B. Organised accounting → Annex C. Keep every issued invoice throughout the year — they form the basis for filing and any future audit.

Specific situations you need to know

Combining employment with independent activity

Legal and common in Portugal. What changes:

• For IRS, Category A (employment) and Category B (self-employment) income are combined — this can push you into a higher marginal bracket
• For Social Security, you can be fully exempt if your monthly relevant income from independent activity is below 4 × IAS (€2,148.52 in 2026) and your employment salary is at least 1 × IAS
• When contributions are due, the contribution base is reduced by 4 × IAS, and the 21.4% rate applies only to the excess
• The withholding tax deducted from your salary may not cover total IRS owed — run advance simulations

For the full picture, consult our complete guide on workers' rights in Portugal.

Services to foreign or EU clients

Cross-border services have specific VAT rules:

• B2B intra-EU: reverse charge mechanism applies. You don't charge Portuguese VAT — the client accounts for it in their member state. The invoice must show both EU VAT numbers and the mention "VAT reverse charge"
• Services to non-EU clients: as a rule, exempt from Portuguese VAT
• B2C intra-EU: complex rules depending on service type — sometimes you charge Portuguese VAT, other times special regimes apply (OSS)

Correcting a green receipt issued in error

Wrong amount or wrong NIF? You can't delete — you cancel. In Portal das Finanças, find the document, select Anular and state the reason. The cancelled document stays in the system with no tax effect. Issue the corrected document immediately afterwards.

Financial management as an independent worker

Set aside tax money from day one

The most common mistake: spending every euro that comes in. Every time you issue an invoice, set aside a percentage for taxes and contributions. Practical rule for a service provider in the simplified regime: reserve 30 to 40% of the gross amount. That covers IRS, VAT (when applicable) and Social Security in most situations.

Documents to keep (minimum 5 years)

• Invoices for professional expenses (computer, software, travel, training, telecoms)
• Rent payment records if you work from home (a fraction may be deductible)
• Bank statements showing received payments
• Notifications and communications from the Tax Authority and Social Security

Useful tools

• Portal das Finanças: invoice issuance, document history, returns
• Segurança Social Direta: quarterly declarations, contribution history
• Withholding simulator available on Portal das Finanças, to estimate IRS and SS before invoicing
• Personal finance apps to separate personal and professional accounts

Rights and social protection for independent workers

What Social Security covers

Those who contribute regularly access social protection:

• Sickness benefit: after 6 months of contributions and a waiting period, you receive compensation during sick leave
• Parental benefit: maternity and paternity leave
• Unemployment benefit (involuntary cessation): accessible under specific conditions — not equivalent to the unemployment benefit available to employees
• Old-age and disability pensions: contributions build proportional pension entitlement

First-year Social Security exemption

In your first civil year of activity, you're automatically exempt from Social Security contributions — 12 months, provided you haven't had independent activity in the previous three years. You can voluntarily waive the exemption (by filing a quarterly declaration) to start building contribution history sooner. Check current conditions in Segurança Social Direta, as the rules have been adjusted in recent years.

Frequently asked questions about green receipts

Can I issue green receipts if I'm already employed?

Yes, no legal restriction. You must open an activity at the Tax Authority and declare income from both sources in your IRS return. Social Security contributions as an independent worker may be fully exempt under specific conditions — namely if your monthly relevant income is below 4 × IAS (€2,148.52 in 2026) and your employment salary is at least 1 × IAS.

What is the VAT exemption threshold in 2026?

€15,000 of annual turnover. Workers starting an activity are exempt in the first year if the projected annual figure stays below this level. Note: if you exceed €18,750 (the 25% buffer) during the current year, the transition to the standard regime is immediate — the invoice crossing that line must already include VAT.

Do I have to apply withholding tax on every green receipt?

No. Withholding tax only applies when the client has organised accounting (typically companies). If you invoice individuals, there is no withholding. The rate for most professions listed in Article 151 CIRS is 23% in 2026 (reduced from 25% by the 2025 State Budget). For other activities, the rate is 11.5%.

What is the "relevant income" for Social Security?

For services, it equals 70% of revenue invoiced in the previous quarter. Divide by 3 to get the monthly contribution base, then apply the 21.4% rate. In 2026, the minimum contribution is €20/month and the maximum €1,379.35/month (maximum base = 12 × IAS = €6,445.56).

How do I know whether I'm in the simplified regime or organised accounting?

By default, anyone invoicing up to €200,000/year who didn't explicitly opt in to organised accounting is in the simplified regime. Confirm your current status on Portal das Finanças under "Os seus dados".

Can I cancel a green receipt after it has been issued?

Yes. In Portal das Finanças, locate the document, select "Anular" and state the reason. The document is marked as cancelled but produces no tax effects. Issue the corrected document right after.

What are Portugal's VAT rates in 2026?

Mainland: 23% standard, 13% intermediate, 6% reduced. Azores: 16% / 9% / 4%. Madeira: 22% / 12% / 5%. The applicable rate depends on where the operation occurs, not on the provider's address.

Sources and official resources

• Portal das Finanças — Tax Authority (AT)
• Social Security — Independent Workers
• Article 53 CIVA — VAT exemption regime
• Article 28 CIRS — Category B taxation regimes
• Order of Certified Accountants (OCC)
• gov.pt — VAT in Portugal