This typically means they agree you don't get double charged (so you can claim taxes paid in one back in the other) but they both still want you to complete the paperwork regardless. Saves money, not time.
Don't get double-taxed on income, specifically. You may still get double-taxed on investments, property, wealth, etc depending on which pair of countries
Don't get double-taxed on income, specifically. You may still get double-taxed on investments, property, wealth, etc depending on which pair of countries