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T1 - Federal Tax guide index by line numbers

Federal Income Tax and Benefit Information - 2025

Before you file

Who has to file a return

Which tax package is for you

Due dates

Penalties and interest

Ways to file your return

Get help doing your taxes

Gather your documents

Completing your return

Step 1 - Identification and other information

Residency information for tax administration agreements

Elections Canada

Foreign property

Step 2 - Total income

Step 3 - Net income

Step 4 - Taxable income

Step 5 - Federal tax

Part A - Federal tax on taxable income

Part B - Federal non-refundable tax credits

NEW! Line 34990 - Top-up tax credit

Part C - Net federal tax

Step 6 - Refund or balance owing

Supporting documents

After you file your return

Notice of assessment

Processing time

Tax reviews

How to change a return

Digital services for individuals

My Account

Receive your CRA mail online

My Payment

For more information

Retirement income summary table