Hi i got refund last year and this year i have to pay $4000.00 which i got pay the same as both.

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Because we can't see the details from your return, we can't be more specific.  But you can check in this article what is the 9 Biggest Tax Changes in 2023.

The 9 Biggest Tax Changes Canadians Need to Know in 2023 

For more information, visit Why is My Refund Lower Than Last Year? 

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