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| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | |||
| 1Damrong Rajanubhab DayDamrong Rajanubhab Day | |||||||||
| 2 | 3 | 4Thai Environment DayThai Environment Day | 5National Father's DayNational Father's DayNational Father's Day H.M. King Bhumibol Adulyadej's BirthdayH.M. King Bhumibol Adulyadej's BirthdayH.M. King Bhumibol Adulyadej's Birthday | 6 | 7 | 8 | |||
| 9Withholding Income Tax Return for Nov’19Withholding Income Tax Return for Nov’19The Dec’19 (Monthly) Withholding Income Tax Return is for revenue generated in Nov'19. (Por. Ngor. Dor. 1,2,3,53,54, Por. Por. 36) | 10Thailand Constitution DayThailand Constitution DayThailand Constitution Day | 11 | 12 | 13 | 14 | 15 | |||
| 16National Sports DayNational Sports Day Monthly VAT and/or SBT Tax Return for Nov’19Monthly VAT and/or SBT Tax Return for Nov’19The Dec’19 (Monthly) VAT and/or SBT Tax Return is for the tax generated in Nov’19. (Por. Por. 30, Por. Thor. 40) Alternate Date for Withholding Tax Return (E-Filing)Alternate Date for Withholding Tax Return (E-Filing)Alternate date for E-filing the Dec’19 (Monthly) Withholding Income Tax Return if first deadline missed. No fines or penalties are assessed. (Por. Ngor. Dor. 1, 2, 3, 53, 54, Por. Por. 36) Alternate Date for Withholding Tax Return (E-Filing)Alternate Date for Withholding Tax Return (E-Filing)Alternate date for E-filing the Apr’20 (Monthly) Withholding Income Tax Return if first deadline missed. No fines or penalties are assessed. (Por. Ngor. Dor. 1,2,3,53,54, Por. Por. 36) Monthly VAT and/or SBT Tax Return for Mar’20Monthly VAT and/or SBT Tax Return for Mar’20The Apr’20 (Monthly) VAT and/or SBT Tax Return is for the tax generated in Mar’20. (Por. Por. 30, Por. Thor. 40) | 17 | 18 | 19 | 20 | 21 | 22 | |||
| 23Alternate Date for VAT and/or SBT Tax Return (E-Filing)Alternate Date for VAT and/or SBT Tax Return (E-Filing)Alternate date for E-filing the Dec’19 (Monthly) VAT and/or SBT Tax Return if the first deadline is missed. No fines or penalties are assessed. (Por. Por. 30, Por. Thor. 40) | 24 | 25ChristmasChristmas | 26 | 27 | 28King Taksin Memorial DayKing Taksin Memorial Day | 29 | |||
| 30 | 31New Year’s EveNew Year’s Eve | ||||||||
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