Important Due Dates

31-Jan
WSIB Q4 filing

28-Feb
T4 slips filings
T5 slips filings

15-Mar
First personal income tax instalment

30-Apr
Employees personal income tax return filings
Self employed and business owners income tax and GST
WSIB Q1 filing

15-Jun
Filing of self employed and business owned income tax and GST returns
Second personal income tax instalment

30-Jun
T5018 statement of contract payments for calendar year filings-

31-Jul
WSIB Q2 filing

15-Sep
Payment of third personal income tax instalment

31-Oct
WSIB Q3 filing

15-Dec
Payment of last personal income tax instalment

Other Important Dates

Quarterly - last day of month
GST payments
Personal tax instalments

Monthly - last day of following month
WSIB payments

Monthly - last day of month
Corporate tax instalments

Monthly - 23 of the month
PST payments

Monthly - 15 of each month
ETD (Employee Payroll Tax)deductions

Penalties and Interests

Late PST filings
10% on tax collectible on sales, 5% on tax payable for own use

Late ETD payroll tax fillings
10%

Late T4, T5 and T5018 return filings
$25 per day to a maximum of $2,500

Late GST payments
$250 + 1% + 0.25% monthly penalties and Interest at 6-8%

Late income tax payments
Interest at 6-8%

Late income tax return filings
5% penalty plus 1% per month interest (both penalties and interest double if not first offender)

Late  WSIB filings
10.5%/Year interest plus penalty