Opening activity with the Tax Authority: 5 rules to start right as a self-employed worker

Opening activity is quick and free, but two choices you make on that form – your activity code and your expected turnover – decide how much IRS you pay, whether you charge VAT and how much is withheld from each invoice. These are the five rules to get it right first time.
Self-employed (recibos verdes): 5 things to check before the end of the year

If you work on recibos verdes under the simplified regime, December is the time to review your expenses, VAT and Social Security. An hour of review now avoids paying too much income tax in 2027 and surprises in January.
NISS in Portugal: What It Is and When You Need It

If you’re going to work in Portugal, sooner or later someone will ask for your NISS. It’s the number that connects you to the Portuguese Social Security system — and without it, starting a job or working as a freelancer becomes complicated. The good news: there are two ways to get it — online or in person. Here’s how each one works and which is best for you.
Portugal’s Tax & Social Security Demystified

Navigate Portugal’s tax and social security nuances effortlessly with our concise guide for self-employed professionals.
Portugal’s Tax & Social Security Demystified (with step-by-step instructions)

Empower yourself with a comprehensive DIY solution. Navigate reporting requirements independently with our easy-to-follow guides, templates, and resources, ensuring compliance and control over your business finances.