Tax related question

Hi all,

I recently started my first project and am looking for the most efficient way to manage taxes on this new income.

I am a dual citizen based in Canada, but my other citizenship has a significantly lower tax rate. When I initially signed up on Mercor, I remember being asked where I wanted to be taxed and I selected Canada.

Does anyone know if it's possible to change this tax reporting to my other citizenship, or how residency and tax obligations generally work in this scenario?

Any help is appreciated !