The rules of the NHR status non-habitual resident in Portugal,

This means that foreign expats can potentially receive pensions, rental income, real estate capital gains, interest, dividends and non-Portuguese source salaried income by being exempt from tax. It is important to note that this may apply even if the income is not actually taxed in the country of origin.

Pension income (category H): Retirement pensions

This may concern you directly: pension income. Private sector pensions are the only ones accepted to benefit from the NHR status in Portugal.

It is possible to benefit from a fixed rate of 10% if:

If they are taxed in the State of origin in accordance with the double taxation agreement concluded between Portugal and that State. ;

Or provided that the income cannot be considered as obtained in Portugal under domestic law.