# When is the Thai VAT return P.P.30 due?

Last updated: 25 October 2026
Country: Thailand
Category: VAT

**Quick answer:** Every month, by the 15th of the following month, even if you had no sales. Filing online through e-Filing extends it to the 23rd.

## Detailed explanation

## The rule

Section 83 of the Revenue Code requires every VAT registrant to file P.P.30 for each calendar month, with any tax due, by the 15th of the following month.

## Online

Filing through the Revenue Department's e-Filing system usually extends the date to the 23rd, as the Revenue Department announces each year.

## No sales?

You still file.

## How AccountsOS helps

Finn works out the P.P.30 figures from your books, removes VAT you cannot claim and tracks the date. AccountsOS does not submit the return.

Source: https://www.rd.go.th/english/6043.html

## Real-world examples

### October sales

October P.P.30 is due 15 November, or 23 November online.

## Common mistakes to avoid

- Skipping a month with no sales
- Filing late on paper

## Frequently asked questions

### Is there a quarterly option?

No. P.P.30 is monthly.

## Practical tips

- Upload purchase tax invoices as they arrive so the month closes quickly.

## Related questions

- [What is the VAT rate in Thailand?](https://accounts-os.com/th/questions/what-is-the-vat-rate-in-thailand)
- [Can I claim VAT and tax relief on client entertainment in Thailand?](https://accounts-os.com/th/questions/can-i-claim-vat-on-entertainment-in-thailand)