IRS Preparation & Filing
We prepare and submit your Portuguese income tax return, ensuring accuracy, full compliance, and proper use of available deductions — whether your income is from Portugal, abroad, or both.
Individuals
Individual Tax Declaration
02/09
Filing a personal income tax return (IRS) in Portugal can be a complex task, especially if you have income from multiple sources, live abroad, or benefit from special tax regimes. We offer precise, personalised support to ensure your obligations are met with clarity, compliance, and peace of mind.
Whether you're declaring income earned in Portugal, abroad, or both, we help you navigate the process, optimise your position, and avoid costly errors or penalties. Our team combines fiscal expertise with international insight, so you can file with confidence.
Request information →What we do
Foreign Income & Double Taxation Relief
We help you declare foreign income correctly and apply the relevant tax treaties to avoid double taxation. From pensions and remote work to dividends and rental income, we ensure you don't overpay.
Special Regimes & Tax Benefits
We assist with the application of special tax regimes like the Non-Habitual Resident (NHR) or IFICI, ensuring you meet eligibility criteria and benefit from all available exemptions.
IRS Review & Second Opinion
Unhappy with the outcome of your IRS return? We analyse your previously submitted declaration, search for missed deductions or benefits, and assess whether a correction could reduce your tax liability or increase your refund.
Rectifications & Voluntary Corrections
If your IRS declaration was submitted with errors or missing information, we prepare and submit the necessary amendments — quickly, discreetly, and in your best interest.
Why Frontier