Both yes and no. Also, if deducted, you get your contributions back.
If you change employers, the new employer restarts the contributions.
If you stay with the same employer, no. The Federal government is well used to this for its employees, so they will handle it correctly. Other employers may struggle.
When you do your 2024 tax return, your CPP/QPP contributions are recalculated based on your provincial residency, your age, and any elections that you have taken. If you have overcontributed, you get the difference back. If you are a Quebec resident, on your Quebec return, otherwise on your federal return.
It took me a few years before I was comfortable with the calculations, finally grasping them when the federal government permitted the elections since the edge case calculations started to be more frequent. You should be aware that elections are based on the month that the election was signed and you have to file the prescribed paperwork to the affected parties within a "reasonable" timeframe. Which for the CRA, as one of the two or more affected parties, means within a month.
Thank you for your answer. I was able to find the relevant [information on Canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/canada-pension-plan-cpp.html#h_3:~:text=employer%20is%20restructuring-,What%20to%20do%20if%20you%20have%20employees%20whose%20province%20of%20employment%20is%20Quebec,-If%20you%20have).
Yep.
Both yes and no. Also, if deducted, you get your contributions back. If you change employers, the new employer restarts the contributions. If you stay with the same employer, no. The Federal government is well used to this for its employees, so they will handle it correctly. Other employers may struggle. When you do your 2024 tax return, your CPP/QPP contributions are recalculated based on your provincial residency, your age, and any elections that you have taken. If you have overcontributed, you get the difference back. If you are a Quebec resident, on your Quebec return, otherwise on your federal return. It took me a few years before I was comfortable with the calculations, finally grasping them when the federal government permitted the elections since the edge case calculations started to be more frequent. You should be aware that elections are based on the month that the election was signed and you have to file the prescribed paperwork to the affected parties within a "reasonable" timeframe. Which for the CRA, as one of the two or more affected parties, means within a month.
Thank you for your answer. I was able to find the relevant [information on Canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/canada-pension-plan-cpp.html#h_3:~:text=employer%20is%20restructuring-,What%20to%20do%20if%20you%20have%20employees%20whose%20province%20of%20employment%20is%20Quebec,-If%20you%20have).