Paterson & Company Professional Corporation - Chartered Professional Accountants
August
1st - Quarterly HST Return for calander year filers (Apr/May/June)
10th - Source Deductions Due Threshold 1
15th - July Source Deductions Due
25th - Source Deductions Due Threshold 1
 
September
11th - Source Deductions Due Threshold 1
15th - August Source Deductions Due
- Quarterly Income Tax Installment for 2017
25th - Source Deductions Due Threshold 1