March
14. Pay All Statutory Deductions for February (SO1)
15. File & Pay Self-Employed (SO4)/ Final Income Tax Returns (2017)
    - File estimated Self-Employed SO4/Income Tax Return (2018)
    - Pay Q1 Estimated Income Tax / Self-Employed Statutory Payments
    - Companies Files & Pay Asset Tax Return
29. File & Pay GCT Return for February

April
3. - Property Tax 2018/2019 due
   - File Employer's Annual Return (SO2) Online

16. Pay ALL Satutory Dedctions for March (SO1)
30. File & Pay GCT Return for March

May
14. Pay All Statutory Deduction for April (SO1)
31. File & Pay GCT Return for April

June
14. Pay ALL Statory Deductions for May (SO1)
15.- Pay Q2 Estimated Income Tax/Self-Employed Statutory payments
   - Pay Minimum Business Tax (1st Half)
29. File & Pay GCT Return for May

July
16. Pay ALL Statutory Deductions for June (SO1)
31. File & Pay GCT Returns for June

August
14. Pay ALL Statutory Deductions for July (SO1)
31. File & Pay GCT Returns for July

September
14. Pay ALL Statutory Deductions for August (SO1)
17. - Pay Q3 Estimated Income Tax/ Self Employed Statutory Payments
    - Pay Minimum Business Tax (2nd Half)
28. File & Pay GCT Return for August

October
16. Pay ALL Statutory Deductions for September (SO1)
31. File & Pay GCT Returns for September

November
14. Pay ALL Statutory Deductions for October (SO1)
30. File & Pay GCT Return for October

December
14. Pay ALL Statutory Deductions for November (SO1)
17. Pay Q4 Estimated Income Tax/Self-Employed Statutory payments
31. File & Pay GCT Return for November