Thai Monthly Tax Deadlines — PP.30, PND.1/3/53
These deadlines recur every month. The figures mirror our guides and can change — always confirm the current deadline with the Revenue Department (www.rd.go.th / hotline 1161) before filing.
Paper deadline by the 7th of the next month — online filing extends to ~the 15th
Paper deadline by the 15th of the next month — online filing extends to ~the 23rd
Add to your own calendar
Download the .ics calendar file and import it into your calendar app for automatic monthly reminders — we never email or push reminders for you.
Download reminder calendar (.ics)Frequently asked questions
What is the PP.30 (VAT) deadline?
By the 15th of the following month. Filing online earns an extension, typically to around the 23rd. Confirm the current deadline with the Revenue Department.
When must I remit withholding tax (PND.1 / 3 / 53)?
Within 7 days of the end of the month in which payment was made (i.e. by the 7th of the following month). Online filing earns an extension. Confirm the current deadline with the Revenue Department.
How can I get a reminder for these deadlines?
Download the calendar file (.ics) on this page and import it into your own calendar app — it adds recurring monthly reminders there. (BillsOS does not email or push reminders for you.)
Let BillsOS total your tax figures
Issue tax invoices that calculate VAT and withholding automatically, with monthly totals to help you file. (The filing itself is still done in the RD e-Filing system.)
Start free →Reviewed 2026-06-08. This page is general information, not specific tax advice. Deadlines may change — verify with the Revenue Department or your accountant before relying on this.