Discovering that you are a Canadian citizen by descent may raise questions about potential tax responsibilities to Canada. However, under the new citizenship law effective December 2025, many Americans became eligible without facing immediate tax obligations to Canada, unless they decide to relocate.

It is essential to note that Canada’s tax requirements are primarily tied to residency rather than citizenship status. The Canada Revenue Agency (CRA) enforces tax obligations based on your residency status, irrespective of your citizenship.

The possession of a Canadian citizenship certificate does not alter tax obligations for most American-Canadians residing in the United States. If you were a US citizen before acquiring dual citizenship with Canada and continue to reside in the US post-acquisition, your tax responsibilities are expected to remain consistent.

When evaluating your residential ties for tax purposes, the CRA considers factors such as your primary residence, spouse or partner, and dependents, with Canadian citizenship playing a role in this assessment.

For individuals falling into one of four common scenarios, the tax implications are summarized as follows:

Your Situation	Likely Position	Tax Outcome
Stay in the US, no Canadian income or ties	Citizenship alone creates no Canadian filing obligation	File US taxes as usual
Stay in the US, but have Canadian income or property (investments, rent, a sale)	Canadian tax or withholding may apply to that income	Review treaty treatment before you receive or sell
Hold a Canadian TFSA or FHSA as a US taxpayer	Tax-free in Canada, but may be taxable and reportable in the US	Get cross-border advice before opening one
Move to Canada and establish residential ties	Canada taxes worldwide income while resident; US filing continues	Coordinate both returns

Note: This content is for informational purposes only. Individual tax obligations in cross-border situations may vary based on specific circumstances and agreements.