Changing the country on an AdSense account is usually difficult. Google expects the account country to match the owner’s real residence, payment profile, and tax information. When a country change is requested, Google often asks for official documents to verify the new location, and without valid proof the account can face limitations or suspension.
If the account was created or purchased in a different country, modifying it later can be risky. In many cases, Google does not allow country changes at all, so opening a new AdSense account that fully complies with Google’s policies in the correct country is often the safer long-term solution.