If you have dual-citizenship, do you have to pay taxes to both countries?

-Canada and Ireland would be the specific countries.No, you only pay income tax on the country you earn the income in.



I could be wrong, but I think some countries like the US expect you to pay income tax on any income you earn regardless of wear. But in the specific example of Canada and Ireland, you only pay in the country you earn the money.Citizenship is not normally an issue for income taxes. All countries tax their residents on their world-wide income.



In your case, you pay taxes to your country of residence. Citizenship is immaterial.



The US is unique in that it requires all citizens to file an income tax return. However, if you're a non-resident, and earn no US source income, there is no tax.
No, you only pay tax in the country you are working/living in.