2 March 路 Schedule 7
RRSP deadline
Last day to put money into an RRSP and take the deduction against last year's income.
canada.caWhat to file with the CRA, when penalties begin, and how long you have to challenge a decision. Every step opens the official source.

Tax year
1 January to 31 December
When a due date falls on a Saturday, Sunday or public holiday, the CRA accepts the next business day.
2 March 路 Schedule 7
Last day to put money into an RRSP and take the deduction against last year's income.
canada.ca15 March 路 Official deadline
Quarterly instalment one, if the CRA asked you to pay by instalments.
canada.ca30 April 路 T1
File your T1 and pay any balance owing for last year. Self-employed people still pay today even though they can file later.
canada.ca15 June 路 T2125
Filing deadline if you or your spouse ran a business, and quarterly instalment two.
canada.ca15 September 路 Official deadline
Quarterly instalment three.
canada.ca15 December 路 Official deadline
Final quarterly instalment for this year.
canada.caThe date on your own notice wins. Appeal periods often start when the CRA sends that notice, not at the tax year end.
appeal
Whichever is later: 1 year after the filing due date, or 90 days after the notice date
Use the date printed on your notice of assessment. Late objections need an extension request with reasons.
Open T400A or My Account objectionfile
30 April, or 15 June if you or your spouse are self-employed
Self-employed filers still have to pay any balance owing by 30 April.
Open T1penalty
Starts the day after the filing or payment deadline
5% of the balance owing plus 1% for each full month late, and more if you were charged a late penalty in recent years.
Open Penalties and interestpay
Within 10 calendar years of the tax year concerned
Call CRA for a payment arrangement first. RC4288 asks for penalties or interest to be cancelled for reasons beyond your control.
Open RC4288 taxpayer relief requestEvery T2125 line in plain words, with CPP on self-employment, Schedule 8, and Schedule 1 for tax on split income.
Work through income, expenses and deductions, see the estimated tax, then copy the checked figures into the official filing service.
Start the step-by-step returnThe library holds the official rules behind these dates. Source checks can flag a change, but a person must approve it before Taxmiser changes a calculation.
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