The line 43700 (Total income tax deducted) on your income tax return is the total income tax deducted from all your income sources. 

As per the CRA: Income tax deducted at source will be shown on the following information slips:

Box 22 

• T4 slip, Statement of Remuneration Paid
• T4A slip, Statement of Pension, Retirement, Annuity, and Other Income
• T4A(OAS) slip, Statement of Old Age Security
• T4A(P) slip, Statement of Canada Pension Plan Benefits
• T4A-RCA slip, Statement of Distributions from a Retirement Compensation Arrangement (RCA)
• T4E slip, Statement of Employment Insurance and Other Benefits

Box 28 

• T4RIF slip, Statement of Income from a Registered Retirement Income Fund

Box 30 

• T4FHSA slip, First Home Savings Account Statement 
• T4RSP slip, Statement of RRSP Income

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