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How to report OAS and CPP/QPP pensions from Canada

Lyane

I receive Old Age Security (OAS) and Quebec Pension Plan (QPP) from Canada. These are GOVERNMENT pensions and I believe they are considered as Social Security according to the treaty between Canada and the USA. I pay tax only in the USA as I am a resident alien of the USA and a non-resident of Canada.

I read that OAS and QPP should be added to my Spousal Social Security on line 6a and the whole amount put in line 1 of the SSA worksheet to determine the taxable amount in 6b. Is this correct?

My previous accountant entered OAS and QPP as pensions on line 5a, fully taxable on line 5b. Was he mistaken?

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Accepted answers

MatthewD

Hi,

You're correct, and your previous accountant's approach was not the proper treaty treatment for these benefits.

To enter your OAS and QPP in our software, go to Income > Social Security Benefits (SSA-1099). You can enter your Canadian benefits there alongside any U.S. spousal Social Security, and the software will run the SSA worksheet to calculate the taxable amount on Line 6b.

Under Article XVIII(5) of the U.S.-Canada income tax treaty, benefits paid under the Canada Pension Plan (CPP), Quebec Pension Plan (QPP), and Old Age Security (OAS) to U.S. residents are treated as U.S. Social Security benefits for U.S. tax purposes. IRS Publication 597 confirms this: "Canadian benefits that are treated as U.S. social security benefits are reported on Lines 6a and 6b on Form 1040." (https://www.irs.gov/publications/p597)

This means the full amount goes on Line 6a, and the taxable portion — determined by the Social Security worksheet — goes on Line 6b. Depending on your total income, generally up to 85% of the benefits may be taxable. This is typically more favorable than treating them as fully taxable pension income on Lines 5a/5b, which is what your prior accountant did.

All comments

MatthewD

Lyane

Thank you for a very clear and precise answer. I really appreciate that you quoted the U.S.-Canada income tax treaty and IRS Publication specific articles. It will be useful for my amended 1040X.

One last precision: you say to enter my Canadian benefits alongside any U.S. Social Security. There is only one SSA-1099 in the software and no possibility to add a NR4 from Canada as I filed electronically. I am concerned that adding the total on line 6a might trigger a red flag since this amount will not be the same as what is on my official SSA-1099. Should I worry? 🤔

Taylor

Hello Lyane,

If it is taxable in the U.S., generally the NR4 and SSA-1099 amounts will be added together and entered as a total in the SSA-1099 screen. If the IRS needs additional information, and requests that you send them a copy of the NR4, they will request this by mailing a letter to the address listed on the 1040.

Lyane

Thank you for your prompt answer. It sure clears up things for me. Much appreciated.

KU_Canada

Would you know how to add the CPP/OAS specifically for Massachusetts? I believe the state taxes CPP/OAS as a pension for 2025, but there is no way to add a pension in the state section, if the CPP/OAS has been entered as Social Security in the Federal section. Does anyone have a workaround?

JanaA

Hello KU_Canada! Since you entered your CPP/OAS as Social Security on the federal return, our software will carry that income to the Massachusetts return as Social Security income, not as pension income. We do not have a workaround to change this in the state section.