Deductions
Amounts subtracted from your income before your tax is worked out.
6 articles in this topic
T4 boxes 44 to 56: dues, donations and pension adjustment
Boxes 44, 46, 50, 52, 55 and 56 of a T4 cover union dues, payroll charitable donations, your pension plan number, the pension adjustment and Quebec parental insurance.T4 slipDeductionsCreditsT4 other information boxes: the codes at the foot of the slip
The six spaces at the bottom of a T4 hold two-digit codes for taxable benefits, commissions, retiring allowances and other amounts. Here is what the common codes mean.T4 slipIncomeDeductionsCPP contributions on your return
Your CPP contributions are split on the T1: the base part is a credit on line 30800 and the enhanced part, with all of CPP2, is a deduction on line 22215.CPP and EICreditsDeductionsT4 box 16A: second CPP contributions (CPP2)
Box 16A reports the second tier of CPP contributions on 2026 earnings between CA$74,600 and CA$85,000. It is fully deductible on line 22215 of your T1.CPP and EIT4 slipDeductionsDeductions Hypertax handles
A deduction lowers the income your tax is worked out on. The pension, RRSP, union dues, CPP and moving-expense deductions Hypertax can claim on a T1.DeductionsCreditsWhat Hypertax coversCredits Hypertax handles
A credit comes off the tax itself. This page lists the credits Hypertax can claim on a Canadian T1, the ones it refuses, and why a benefit is not a credit.CreditsDeductionsWhat Hypertax covers