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Important information for income tax filing

The tax filing season for the year 2018 is open. The information provided below will help you to prepare documents for timely submission of documents.

Documents necessary for filing your income tax declarations

Type of income or expenseRemitting bodyCanadaQuebecDate of reception
EmploymentEmployerT4RL-1Until end of February
BursaryAide financiere au etudesT4ARL-1Until end of February
PensionRegie de rentes du QuebecT4APRL-1/RL-2Until end of February
PensionService CanadaT4AOASRL-1/RL-2Until end of February
UnemploymentService Canada/Regie de rentes du QuebecT4ET4E/RL-6Until end of February
RRSPBank/ financial institutionT4RSPT4RSPUpon payment
Interest incomeBank/ financial institutionT5RL-3Until end of February
Employment in construction industryEmployerT5018—-Until end of February
StudiesEducational institutionT2202RL-8Until end of February
WelfareMinistere de solidarite socialeT5007RL-5Until end of February
Prepayment for child care servicesMinistere de Revenu du Quebec—-RL-19Until end of February
Childcare expensesChildcare provider—-RL-24Until end of February
Medical expensesClinics, doctors, pharmaciesReceiptsReceiptsUpon receipt
Rental slipLandlordRL-31RL-31Until end of February
Amounts that are considered income for tax purposesAmounts that are not considered income for tax purposes
Self-employed income;
interest and investment income
student bursary;
sale of revenue property;
french immersion courses bursary;
foreign income.
Rent allowance;
insurance payouts;
children alimony;
sale of private property;
Solidarity tax credit;
GST credit;
Lottery wins;
Union lockout pay;
Child allowance ;
TFSA income;
Student loan

When to file your corporation income tax return

File your return no later than six months after the end of each tax year. The tax year of a corporation is its fiscal period.

  • When the corporation’s tax year ends on the last day of a month, file the return by the last day of the sixth month after the end of the tax year
  • When the last day of the tax year is not the last day of a month, file the return by the same day of the sixth month after the end of the tax year. Example
  • If your tax year ends March 31, your filing due date is September 30
  • If your tax year ends August 31, your filing due date is February 28.
  • If your tax year ends September 23, your filing due date is March 23.

When to pay your corporate balance due

Generally, all corporation taxes (except Part III and Part XII.6) charged under the Income Tax Actare due two months after the end of the tax year

When to file and pay your GST/QST

Monthly – One month after the end of the reporting period
Quarterly – One month after the end of the reporting period
Annually (except for individuals with a December 31 fiscal year-end and business income for income tax purposes) – Three months after fiscal year-end
Annually (individuals with a December 31 fiscal year-end and business income for income tax purposes) – June 15 April 30

When to file your slips and summaries

You have to file the slips information return on or before the last day of February following the calendar year to which the information return applies. If the last day of February is a Saturday, a Sunday, or a public holiday, your information return is due the next business day

When to file your personal income tax return

Generally, your return has to be filed on or before April 30, 2019.


If you don’t file your return, your GST/HST credit (including any related provincial credit), Canada child tax benefit payments (including related provincial or territorial payments), and old age security benefit payments may be delayed.

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