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Corporate Tax Calendar

This calendar summarizes some of the more significant filing dates for corporations and shareholders which
operate on the basis of a December fiscal year end.


January 10 Source deduction deadline if “average” remittance exceeds $15,000
    Source deduction deadline if “average” remittance is less than $15,000
  31 Corporate Tax Installment
    Prior year Fourth Quarter GST Return (Quarterly filer)
    Prior year Fourth Quarter GST Installment (Annual filer)
February 28 T4 and T4 summaries reporting annual payroll information
    T5 and T5 Summaries reporting annual investment income
    Corporate Tax Installment
    Remainder of prior year’s tax liability if total taxable income of associated group exceeds $200,000 for preceding year
March 1 Deadline for RRSP Contributions deductible in prior year
  15 Personal Tax Installment
    Workers’ Compensation Return
  31 Corporate Tax Installment
    Remainder of prior year’s tax liability if total taxable income of associated group is less than $200,000 and corporation is a Canadian Controlled Private Corporation
    GST Return for Annual filers other than individuals
    Annual Partnership Information Return
April 30 Corporate Tax Installment
    Personal Tax Return
    First Quarter GST Return (Quarterly filer)
    First Quarter GST Installment (Annual filer)
May 31 Corporate Tax Installment
June 15 Personal Tax Installment
    GST Return for annual filers who are individuals
    Personal Tax Return for self-employed individuals
  28 Deadline for payment of accrued salaries and directors’ fees
  30 Federal and Provincial Corporate Tax Return filing deadline
    Corporate Tax Installment
July 10 Source deduction deadline on accrued salaries and directors’ fees if “average” remittance exceeds $15,000
  15 Source deduction deadline on accrued salaries and directors’ fees if “average” remittance is less than $15,000
  31 Corporate Tax Installment
    Second Quarter GST Return (Quarterly filer)
    Second Quarter GST Installment (Annual filer)
August 31 Corporate Tax Installment
September 15 Personal Tax Installment
    Corporate Tax Installment
October 31 Corporate Tax Installment
    Third Quarter GST Return (Quarterly filer)
    Third Quarter GST Installment (Annual filer)
November 30 Corporate Tax Installment
December 15 Personal Tax Installment
    Contact DNTW to determine salaries (directors fees)/dividends for the year
  31 Corporate Tax Installment