Tools disclaimer
The tools on this site are free, indicative simulations. They help you explore scenarios. They are not, on their own, a basis for a decision.
Not advice
The results are not tax, legal, financial, accounting or investment advice, and they are not a recommendation to buy, sell or keep any asset. They are not a property valuation and do not replace the work of a qualified professional.
Assumptions and limits
Each tool uses simplified rules and the assumptions described in its notes. It does not cover every situation, exemption or special regime. Tax rates and tax law in Portugal and in the United States change often, and a tool may not reflect the latest changes.
Your figures
The results depend entirely on the values you enter. The calculations run in your browser. Nothing you type is sent to Duomaris or stored, and it is cleared when you close the page.
Responsibility
Duomaris takes reasonable care to keep the tools correct, but does not guarantee that the results are accurate, complete or up to date. To the extent permitted by law, Duomaris accepts no liability for any loss or damage arising from decisions made on the basis of these tools.
Before any decision, check the figures with an accountant, a tax adviser or a lawyer.
Use
You may use the tools for personal and information purposes. Using them does not create a client relationship with Duomaris. If you would like help with a specific decision, write to [email protected].
Last updated 14 November 2026.