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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Productivity

How to submit your quarterly Social Security declaration in October 2026

SFSimple.fi Team26 October 20263 min read

Freelancer using a computer to handle Social Security matters — Photo from a free public source (Unsplash, Pexels, Wikimedia Commons). To be swapped for a topic specific one.

If you are a freelancer, October is a decisive month for your contribution obligations. You have until the 31st to submit your quarterly declaration regarding July, August, and September 2026.

What you need to declare now

In this quarterly declaration, you must indicate the total income you received during the months of July, August, and September 2026. These values are essential, as they will serve as the basis for calculating your contributions for October, November, and December.

Step-by-step submission

Access the Social Security Portal
Select the Work option
Click on Remunerations and contributions
Choose Independent Workers
Select Submit quarterly declaration

Important note: this procedure must be carried out exclusively online. Make sure to confirm the values before submitting to avoid errors in calculating your contribution base.

Why meeting the deadline matters

Meeting the October 31st deadline ensures your contribution status is regularized. Failure to submit can lead to difficulties in correctly calculating your monthly contributions and potential fines for non-compliance with reporting obligations.

Remember that after submission, you can check the amounts to be paid and issue the necessary payment documents directly in the same area of the portal.

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.

Simple.fi tool · Tax calendar

Never miss a deadline again

With Simple.fi, you receive automatic alerts about Social Security and VAT dates, keeping your accounting always up to date.

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