First time tax payment in 2024

I started receiving my foreign pension from August 2022.

I received my residency in November 2022. 

I got my NHR in January 2023.

In 2024, I will begin paying taxes.

For what time period will I pay my first lot of taxes in 2024?  From August 2022?  From November 2022? From January to December 2023?

Thank you in advance.

The IRS tax statement to be filed in 2024 (from 1 April to 30 June 2024) relates to income earned in the whole 2023. In your case, given your NHR status, you will benefit from this tax reduction.