The tax benefits of being an NHR (Non-Habitual Resident) in Portugal include:

A flat tax rate of 20% on foreign-source income, rather than being subject to progressive tax rates.

Tax exemptions on certain types of income, such as dividends, rental income, and capital gains.

Access to double tax treaties with other countries, which can help to reduce the overall tax burden.

The ability to take advantage of Portugal's favourable tax regime for a period of 10 years.