SMARTAX Reviews 3

Written by the company

Filing your Portuguese IRS doesn't have to be confusing. SmarTax is a web app that helps residents in Portugal prepare and submit their annual IRS (income tax) declaration — without needing an accountant for straightforward cases. Here's how it works: you import your tax data directly from Portal das Finanças, and SmarTax breaks down your income in plain language. You see exactly how your tax is calculated — step by step, based on the official AT methodology. No black boxes, no guesswork. For couples, SmarTax calculates both joint and separate filing options side by side, showing the difference in euros so you can make an informed decision. For freelancers and self-employed workers, SmarTax handles Category B income including the simplified regime and crypto assets. When you're done, you download a ready-to-submit declaration file — in the exact format the Finanças portal accepts. SmarTax is built for expats, freelancers, and families with mixed income types who want to understand what's happening with their money before they file. We don't make decisions for you. We give you the numbers, the breakdown, and the clarity to decide with confidence. SmarTax does not provide tax advice. For complex situations, consult a certified accountant (contabilista certificado).See more