Your question is nonsensical, why would you pay tax after retirement? What amount of income triggers taxes? What is alot compared to a moderate amount? Please be more precise to get a relevant answer to your question.

Apply outside…

No you don’t have to inform anyone that you don’t pay tax in Thailand. Please however be aware of the Singaporean tax residency rules, you are fine for 2025 but even though you are Singaporean you will lose tax residency if you don’t spend enough time(183 days) in Singapore in a tax year. Obviously if you are maxing out the DTV you lose the protection of the DTA in 2026 when Thai tax residency will apply and you may be required if you qualify to file Thai personal income tax.

@Julien *******

you clearly have trouble understanding what I am saying. To repeat myself for the third time, the fact that you have a DTV is completely irrelevant to your tax residency status. Repeating myself again, you need to meet qualifying criteria in order to file a tax return. Just being in country for 180 days or more does not in itself enable you to file taxes. The Revenue Dept issue a Certificate of Tax Residency that some tax regimes ask for as proof of residency. To get one you must have filed a tax return for the most recent tax year. Alternatively when tax resident you can apply for a TIN which is an official document that again some tax regimes accept as official documentation showing your tax residency. Other tax regimes simply require your TIN number as proof.

@Julien *******

ok so let’s just forget about the Thai end of your question and go straight to the real issue. How to lose your current home country tax residency? That is a matter for your home country tax laws in combination with any relevant DTA. As you don’t specify which country you are from it’s impossible to answer. For some people it is not possible e.g American citizens.

@Greg *******

that too was always my experience up until my last visit.

None, go in morning and pick up passport after 14:00hrs. Very easy…

@Simon ********

that is correct but if you’re standing in front of an Immigration Officer wanting a service guess who is going to be paying that fine…..

@Julien *******

from your statements you clearly do not understand the concept of tax residency. It is not a question of wanting to officially become tax resident, it’s black and white, and automatic, 180 days in the Kingdom in a calendar year makes you tax resident, the visa you are on is irrelevant. There is no “validation” of tax residency. If you were tax resident in 2024 and met the qualifying criteria for tax filing you have until the end of March 2025 to file your tax return, a little longer if you do it online.

@Simon ********

Eh??

There is no daily fine and it is not 4K baht. Section 77 Immigration Act 1979 is specific: failing to comply with TM30 reporting is punishable by a fine not exceeding 2k. If the failure was from a hotel manager fine is between 2k-10k.