T4 slip

Every box on the Canadian Statement of Remuneration Paid, including box 16A.

9 articles in this topic

• T4 boxes 10 to 18: pay, CPP and EI

  Boxes 10 to 18 of a T4 hold your province of employment, your SIN, your employment income, and the CPP, CPP2 and EI amounts taken from your pay.

  T4 slipIncomeCPP and EI

• T4 boxes 20 to 29: pension, tax deducted and earnings bases

  Boxes 20 to 29 of a T4 report your registered pension plan contributions, the income tax already deducted in box 22, the earnings CPP and EI were charged on, and any exemptions.

  T4 slipTax already taken offCPP and EI

• 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 slipDeductionsCredits

• T4 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 slipIncomeDeductions

• Your T4 slip, box by box

  What a T4 Statement of Remuneration Paid contains, when it must reach you, and a map of every box with a link to the article that explains it.

  T4 slipUploading documentsIncome

• More than one job or slip

  Two jobs in 2026 means two T4s and one return. Entering every slip is what recovers the CPP, CPP2 or EI you overpaid across those jobs.

  IncomeT4 slipFixing problems

• Tax already taken off your pay

  Your employer sends tax to the CRA out of every pay cheque. It appears in box 22 of your T4, and your return settles the difference either way.

  Tax already taken offT4 slip

• T4 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 slipDeductions

• Your T4 is wrong

  What to do when a box on your T4 does not match your records: how to ask the employer for a correction, how long to wait, and how to file if it never comes.

  Fixing problemsT4 slip

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