I have declared my income taxes back home as a Non-Resident.

So I need to fill out an online form with one of my banks.

It's asking if I am a tax resident of another country.

Should I click Yes or No?

I clicked Yes, and it's asking me which country and for a TIN.

I clicked "I don't have a TIN" and I got this popup:

So should I click NO (ie I am not a tax resident of another country)?

Or do I need to get a TIN from Thailand and declare taxes here?

And how would I do that? Hire an accountant?

I don't really want to provide any false information to my country's tax folks and have any problems.

Any help is appreciated if you've had a similar issue.

Has the law forcing foreigners to file taxes in Thailand been implemented?

Realistically, how many foreigners have a TIN here and are reporting income from back home?

Edited August 13Aug 13 by save the frogs

Banks seem overrated. I’m not sure why anyone bothers with them. And then all these questions about TIN. Rubbish. I keep it simple. All my money is in an empty 5 lb whey protein container in the back of my clothing closet, on the third shelf, right behind my boxer shorts. Nobody will ever know it’s there, let alone guess it.

I even put a lock on the closet door for extra security. I keep that simple too. The combination is 1, 2, 3, 4, 5. Nobody would ever guess that. It’s far too obvious. If anyone did manage to find the lock, they wouldn’t even try it.

They want a TIN because you say you aren't resident for tax so where are you paying tax, by saying you don't have a TIN you are saying you aren't paying tax elsewhere, can't do both

Ok, so I need to go see an accountant here and they will give me a TIN?

This topic has to be a windup. Nobody would ask such pedestrian questions. How could someone not know where to get a tax ID number from? Or not know that foreigners have been required to pay taxes in Thailand since 2024 on any income brought into the country. Don't take the bait.

I've seen people in other threads mention they are not paying taxes in Thailand ... YET ... so I assumed the law wasn't in place yet.

Or they may not be doing everything on the up and up.

Or they may be structuring it differently back home. I went the Non-Resident route.

So I got confused.

Are you resident in Thailand for more than 180 days each year? If yes, you are a tax resident so you need to pay here. If no, you are a tax resident elsewhere (probably your original home country).

Go to your local Revenue Department office to get a TIN. Just ask the friendly staff, it's a harmless procedure.

I used an accountant to help agree what I should declare on my annual tax declaration. The accountant cost me 1,800 baht. My tax bill was less.

Any other questions, just ask.

22 hours ago, save the frogs said:

I've seen people in other threads mention they are not paying taxes in Thailand ... YET ... so I assumed the law wasn't in place yet.

Or they may not be doing everything on the up and up.

Or they may be structuring it differently back home. I went the Non-Resident route.

So I got confused.

If you reside in Thailand for more than 180 days you are considered a tax "resident" in Thailand and may be subject to paying Thailand's Personal Income Tax (PIT) on "assessable" income remitted to Thailand. Thailand has Dual Tax Agreements (DTAs) with over 60 countries. The DTA between Thailand and USA notes that retired Federal employee's pensions and Social Security payments are taxable only in the USA - thus they are not assessable income for PIT. However, company pensions and other income are most likely taxable in Thailand for any portion remitted to Thailand during the calendar year (this went into effect for remittances of income received beginning in 2025).

The Pattaya City Expats Club has an entire section on the subject including links to the Thailand Revenue Department's webpages. Technically anyone who is considered a Tax Resident in Thailand is supposed to have a Tax Identification Number (TIN). I used a local law firm to obtain mine rather than go through the hassle of visiting a Revenue office here in Pattaya.

Here is a link to the PCEC's main webpage on the subject: https://pcec.club/Expat-and-Thai-Income-Tax

23 hours ago, save the frogs said:

Ok, so I need to go see an accountant here and they will give me a TIN?

You need to go to your local tax office to get a TIN.

23 hours ago, scubascuba3 said:

They want a TIN because you say you aren't resident for tax so where are you paying tax, by saying you don't have a TIN you are saying you aren't paying tax elsewhere, can't do both

Just for clarity, the "TIN" that they are asking you for is your tax reference in your home country. In the UK, it's your national insurance number. In the US, it's your social security number.

They are asking because of the Common Reporting Standards (or FATCA, if you're from the US). National tax authorities can now swap information with other countries so, for example, if you declared that you're not tax resident in Thailand, the TIN that you submit for the country where you are a tax resident can be used to check the records.

In light of this information, it might be worth reviewing the "Are you resident in Thailand for more than 180 days each year" question and correcting the answer if you were initially confused.

2 minutes ago, IsaanT said:

Just for clarity, the "TIN" that they are asking you for is your tax reference in your home country.

I think it's the Tax ID in Thailand.

That's how my govt back home will cross-reference if I paying taxes in Thailand.

I need to speak to an accountant here to sort it out.

11 minutes ago, soisanuk said:

Technically anyone who is considered a Tax Resident in Thailand is supposed to have a Tax Identification Number (TIN). I used a local law firm to obtain mine rather than go through the hassle of visiting a Revenue office here in Pattaya.

THanks for detailed response.

Yes, I am pretty sure the TIN they are asking me is the Tax Id Number in Thailand, which I guess I can get from an accountant.

17 minutes ago, IsaanT said:

Go to your local Revenue Department office to get a TIN. Just ask the friendly staff, it's a harmless procedure.

I used an accountant to help agree what I should declare on my annual tax declaration. The accountant cost me 1,800 baht. My tax bill was less.

Accounting firm just got back to me.

They want to charge me 3000 Baht JUST for the TIN and another 3000 for the tax declaration.

So you're saying I can get the TIN for free if I go myself to the Revenue Department? Thanks, you saved me 3000 Baht.

But your rate of 1800 Baht is much lower. I need to shop around for a cheaper accountant.

18 minutes ago, IsaanT said:

Just for clarity, the "TIN" that they are asking you for is your tax reference in your home country. In the UK, it's your national insurance number. In the US, it's your social security number.

No, TIN is definitely the Thailand Tax ID.

https://pcec.club/Pattaya-Tax-Professionals

Triple 888 Law charges a fee of 1,500 baht for obtaining a TIN.

My UK bank sent a similar questionnaire recently.

I got down to 'In which Country are you tax resident?'

Factually correct answer: 'Thailand'.

Next question: 'To which country do you pay income tax?'

Factually correct answer 'The United Kingdom'.

Except 'The United Kingdom was NOT on the list of possible answers. Neither was 'other'.

In order to get out of this 'Catch 22' situation I had back up and lie about my tax residency.

Someone obviously didn't think that one through.

That was about 3 months ago and no comeback so far. And I doubt if their will be.

10 minutes ago, save the frogs said:

Accounting firm just got back to me.

They want to charge me 3000 Baht JUST for the TIN and another 3000 for the tax declaration.

So you're saying I can get the TIN for free if I go myself to the Revenue Department? Thanks, you saved me 3000 Baht.

But your rate of 1800 Baht is much lower. I need to shop around for a cheaper accountant.

Yes. If you don't speak Thai (I don't, yet), take your partner or a Thai-speaking friend, just in case. I was asked my name and address, etc., then was issued with a TIN a few minutes later.

The accountant I used was in Roi Et. He advised what I should put on the online self-assessment tax form and completed it for me. It was very simple so I might do it myself next year.

I repeat my advice from earlier, assuming I understood your circumstances correctly: you declared that you are non-resident for tax in Thailand so the Thai authorities now want to understand what you have paid in another country; to do that they have asked for your tax identification for the country where you are a tax resident. They don't know the country so they can't ask for your NI number or your social security number so they will use their generic "TIN" identification.

1 minute ago, IsaanT said:

Yes. If you don't speak Thai (I don't, yet), take your partner or a Thai-speaking friend, just in case. I was asked my name and address, etc., then was issued with a TIN a few minutes later.

Do you need to show any official documents to prove where you live?

3 minutes ago, save the frogs said:

Do you need to show any official documents to prove where you live?

I would have something for them to see - it's tax matters, after all. I expect my partner would have had our house book with her.

On 8/13/2026 at 4:06 AM, save the frogs said:

So should I click NO (ie I am not a tax resident of another country)?

Or do I need to get a TIN from Thailand and declare taxes here?

And how would I do that? Hire an accountant?

I don't really want to provide any false information to my country's tax folks and have any problems.

Any help is appreciated if you've had a similar issue.

In principle YES, if you stay more than 180 days in Thailand within a calendar year.

What income tax you might be due to pay depends on any Double Taxation Agreement (DTA) between you home country and Thailand. Some income transferred into Thailand do not need to be stated, according to other threads in AN, while other income might be taxable here, but foreign deducted taxes can be subtracted in Thai income tax, if the income is included in a DTA.

5 hours ago, IsaanT said:

"Are you resident in Thailand for more than 180 days each year"

Just a nuance that the 180 days each year are cumulative days and not necessarily consecutive.

5 hours ago, IsaanT said:

I would have something for them to see - it's tax matters, after all. I expect my partner would have had our house book with her.

Likely work permit if applicable and visa.

On 8/13/2026 at 9:04 AM, save the frogs said:

I have declared my income taxes back home as a Non-Resident.

So I need to fill out an online form with one of my banks.

It's asking if I am a tax resident of another country.

Should I click Yes or No?

I clicked Yes, and it's asking me which country and for a TIN.

I clicked "I don't have a TIN" and I got this popup:

Are you tax resident in Thailand? Doesn't matter if you file taxes, you are or you are not.

If you aren't filing taxes (yet), you don't need a TIN.

You will apply when you need to file, unless you have a pink ID, which is your TIN.

Notice the text of the option:

"Have applied for, or will apply for, a TIN and will provide it once received.

Honest and legal, you will apply for a TIN when needed for filing, and will provide it once received.

If you don't feel comfortable with that, you can apply for a TIN at the tax office giving the reason as file for refund of interest tax withholding, and you've satisfied the requirement.

On 8/13/2026 at 9:04 AM, save the frogs said:

I have declared my income taxes back home as a Non-Resident.

So I need to fill out an online form with one of my banks.

It's asking if I am a tax resident of another country.

Should I click Yes or No?

I clicked Yes, and it's asking me which country and for a TIN.

I clicked "I don't have a TIN" and I got this popup:

Apply for a pink card and you got your TIN. It's the number on the card.

Very easy.

6 hours ago, Hamus Yaigh said:

You need to go to your local tax office to get a TIN.

Or go for the pinch card. TIN is on it. It's good to have, in case you can't remember the number

52 minutes ago, newbee2022 said:

Apply for a pink card and you got your TIN. It's the number on the card.

Very easy.

Not according to "Thaiger"/AI!

5 minutes ago, scottiejohn said:

Not according to "Thaiger"/AI!

Sorry. I got my pink card many years and used the tax number for many years

1 hour ago, newbee2022 said:

Apply for a pink card and you got your TIN. It's the number on the card.

Very easy.

If you have a Thai pink ID card, the 13-digit number on it can become your Thai TIN. However, this is not automatic. You need to visit the tax office and have them add your Thai ID card number to the tax system as your TIN. Simply having a pink ID card does not mean the number can automatically be used for tax purposes.

3 minutes ago, MoneyPenny said:

If you have a Thai pink ID card, the 13-digit number on it can become your Thai TIN. However, this is not automatic. You need to visit the tax office and have them add your Thai ID card number to the tax system as your TIN. Simply having a pink ID card does not mean the number can automatically be used for tax purposes.

3 minutes ago, MoneyPenny said:

If you have a Thai pink ID card, the 13-digit number on it can become your Thai TIN. However, this is not automatic. You need to visit the tax office and have them add your Thai ID card number to the tax system as your TIN. Simply having a pink ID card does not mean the number can automatically be used for tax purposes.

Whatever procedure you favor, the Number on your pink card is your TIN, indeed.