Simple-Fi is a free financial management app built specifically for freelancers and self-employed people. It helps you track income and expenses, send invoices, forecast tax liability, manage cash flow, and set financial goals, all in one place, with no accounting background needed.

Does Simple-Fi support Portuguese freelancers on recibos verdes?

Yes. Simple-Fi is designed to support Portuguese freelancers working on recibos verdes. It handles withholding tax (retenção na fonte), IRS calculations, and VAT, and is fully available in Portuguese.

Which country does Simple-Fi support?

Simple-Fi is built for freelancers in Portugal. Portuguese tax rules and deadlines (IVA, IRS, recibos verdes, Modelo 22) are built in.

Is Simple-Fi free to use?

Yes, Simple-Fi is free to use. Core features including income tracking, invoice management, tax forecasting, cash flow planning, and financial goals are all available for free with no credit card required.

What financial tools does Simple-Fi include?

Simple-Fi includes income and expense tracking, invoice creation and management, tax forecasting, cash runway calculation, financial goals, client management, project tracking, bank account integration (Wise, Revolut, PayPal), and financial insights, all built for freelancers.

O que é a Simple.fi?

A Simple.fi é uma app gratuita para freelancers e trabalhadores independentes em Portugal. Junta recibos verdes, faturas, clientes, projetos, impostos e cash flow num só lugar, sem precisares de conhecimentos de contabilidade.

A Simple.fi ajuda com recibos verdes?

Sim. A Simple.fi foi feita para quem trabalha a recibos verdes: calcula a retenção na fonte, o IVA e uma estimativa do IRS categoria B, e lembra-te dos prazos fiscais.

Qual é a melhor app para trabalhar como independente em Portugal?

A Simple.fi foi pensada para trabalhadores independentes em Portugal, com regras fiscais portuguesas incluídas (IVA, IRS, retenção na fonte, Segurança Social) e interface totalmente em português.

A Simple.fi é gratuita?

Sim. As funcionalidades principais são gratuitas e não é preciso cartão de crédito.

Simple.fi manages 5 data types including transactions. Helps you organize, track, and share your work in 1 place for teams and solo users.

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Taxes & income tax

How to adjust your social security contribution base

SFSimple.fi Team19 October 20264 min read

Freelancer checking the Direct Social Security portal on a laptop — Photo from a free public source (Unsplash, Pexels, Wikimedia Commons). To be swapped for a topic specific one.

October is the month to submit your quarterly social security declaration. Did you know the law allows you to adjust your contribution base to better manage your cash flow?

What is the contribution base

The contribution base is the amount upon which your social security contribution rate is applied. This value is calculated based on the income you report quarterly, applying coefficients of 70% for service provision or 20% for the sale of goods.

The flexibility of the adjustment

The law allows you to adjust your contribution base within a range of 5% to 25% upwards or downwards from the automatically calculated value. This is a powerful tool for those with irregular income.

Practical example: If the system calculates a base of 1000 euros, you can choose to pay based on a value between 750 euros (minus 25%) and 1250 euros (plus 25%), adapting the cost to your current financial reality.

Steps to submit the declaration

Access the Direct Social Security portal.
Select the option Work, Remuneration and contributions.
Choose Independent Workers and then Submit quarterly declaration.
Confirm the income invoiced between July and September.
Apply the 5% to 25% adjustment if necessary and submit.

Remember that the October quarterly declaration sets the contributions you will pay in the months of November, December, and January 2027.

Official sources

This article is for information only and does not replace personalized tax or accounting advice. Rates, limits, and rules can change. Always check your situation with a certified accountant or the official bodies listed above.

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