Principal Changes

Refer to the pages below to learn about filing changes for the RL-1 slip and RL-1 summary for 2017, and calculation changes for source deductions and contributions for 2018.

Information about changes to source deductions and contributions is published in the Tax News section of our website. You can subscribe to our RSS feed or to one of our notification lists to be alerted whenever a new Tax News article is posted online.

You can also read all the Tax News articles about source deductions and contributions for the following years:

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