Benefits paid under the Canada Pension Plan (CPP), Quebec Pension Plan (QPP), and Old Age Security (OAS) program to a U.S. resident are taxable, if at all, only in the United States. According to the U.S. - Canada income tax treaty, taxation of these benefits is based on residence. U.S. citizens or green card holders who reside in Canada are not subject to U.S. tax on this income.

These Canadian benefits are treated as U.S. social security benefits for U.S. tax purposes. Thus, under section 86 of the Internal Revenue Code, the portion of the benefits that is taxable will depend on your income and filing status. If your modified adjusted gross income is above certain limits, a maximum of 85% of your benefits will be subject to U.S. tax. Refer to Tax Topic 423 for information about determining the taxable amount of your benefits. Any benefit under the social security legislation of Canada that would not be subject to Canadian tax if paid to a resident of Canada is not subject to U.S. tax.

Canadian benefits that are treated as U.S. social security benefits are reported on Form 1040 (PDF), U.S. Individual Income Tax Return or Form 1040A (PDF).

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