Received from UOB bank a CRS form which I have to complete.

Been asked for tax residency. Since I permanently live in Thailand that is obviously Thailand.

Though I receive a pension in Belgium, which I never transfer to Thailand, and have to complete a tax return in Belgium. My pension is below the threshold, so tax-free.

So should I add Belgium as a tax residency on the form?

Depends whether you are officially a tax resident in Belgium under their rules. However it would do no harm to add especially as you do a tax return.

In the UK there are residency tests (mainly days spent in UK based) and I am officially non resident for tax - but still pay a sh*t load of taxes to HMRC ☹️

2 minutes ago, topt said:

Depends whether you are officially a tax resident in Belgium under their rules. However it would do no harm to add especially as you do a tax return.

In the UK there are residency tests (mainly days spent in UK based) and I am officially non resident for tax - but still pay a sh*t load of taxes to HMRC ☹️

Well I would prefer them to know as little as possible, since I have to add my Belgian TIN, which is actually the same as my national register ID, which isn't mentioned in my passport.

I just googled it, and I think to understand from the result, that I'm not a tax resident.

A Belgian citizen spending less than 180 days in Belgium is generally classified as a non-resident for tax purposes. For personal income tax, Belgium will only tax you on your Belgian-sourced income (such as rent from a Belgian property or income from a Belgian employer) rather than your worldwide income. [1]

On 7/11/2026 at 10:22 AM, CallumWK said:

Well I would prefer them to know as little as possible, since I have to add my Belgian TIN, which is actually the same as my national register ID, which isn't mentioned in my passport.

WesternEuropeans

I just googled it, and I think to understand from the result, that I'm not a tax resident.

A Belgian citizen spending less than 180 days in Belgium is generally classified as a non-resident for tax purposes. For personal income tax, Belgium will only tax you on your Belgian-sourced income (such as rent from a Belgian property or income from a Belgian employer) rather than your worldwide income. [1]

On 7/11/2026 at 10:22 AM, CallumWK said:

Well I would prefer them to know as little as possible, since I have to add my Belgian TIN, which is actually the same as my national register ID, which isn't mentioned in my passport.

WesternEuropeans

I just googled it, and I think to understand from the result, that I'm not a tax resident.

A Belgian citizen spending less than 180 days in Belgium is generally classified as a non-resident for tax purposes. For personal income tax, Belgium will only tax you on your Belgian-sourced income (such as rent from a Belgian property or income from a Belgian employer) rather than your worldwide income. [1]

Yeah, as an American, no matter where you live you must file US income tax forms and depending on foreign bank, a FBAR too and one can get credit if one does live overseas and meets the local income tax filing rules. But I am not familiar with Belgium tax regulations especially if your income comes from a Belgium source - since you do file Belgium tax forms, you might consider asking the Belgium tax authorities if you need to file or not since you meet local tax residency in a foreign country. I myself always do anything to avoid legal problems. Best of luck.

On 7/11/2026 at 10:22 AM, CallumWK said:

I'm not a tax resident.

If you were to became a "Thailand tax resident," it still may not affect your tax liabilities.

Belgium and Thailand have a comprehensive Double Taxation Agreement in place. The treaty prevents dual taxation of income and capital and is recognized by the Thai Revenue Department and Belgium's Federal Public Service Finance.

On 7/11/2026 at 10:22 AM, CallumWK said:

Well I would prefer them to know as little as possible, since I have to add my Belgian TIN, which is actually the same as my national register ID, which isn't mentioned in my passport.

I just googled it, and I think to understand from the result, that I'm not a tax resident.

A Belgian citizen spending less than 180 days in Belgium is generally classified as a non-resident for tax purposes. For personal income tax, Belgium will only tax you on your Belgian-sourced income (such as rent from a Belgian property or income from a Belgian employer) rather than your worldwide income. [1]

If you are not a Belgium tax resident, and if the form does not ask you to list places where you reside at times but are not classified as a tax resident then if not legally required to include such, and if the bank is not strong arming you - then I would say - don't list it. Listing aspects one is not legally required to list, can cause more complications than its worth - so be certain one has a good reason for adding such. Being 'strong armed' by the bank can be such a reason.

I obtain income from Canada and Europe/Germany. I file a tax return to Canada every year. I have a letter (that i am tempted to frame) from the German tax authorities noting due to the Thai-German tax agreement (and given my income) i am not required to file a German tax return. I don't file a Thai tax return in part because I am on the LTR-WP visa with no local assessable Thai income. I recall thou, when i was required to fill in the CRS form at a Thai bank, the bank manager insisted on me filing in my Canada tax ID number. They did not ask for my Germany tax ID as I don't file a tax return there any more. They accepted my pink-ID # in regards to a Thai tax-ID (frankly I think that not needed and the bank official may have been a bit overzealous).

So my view is its important to stay legal, but not offer extra information if not pushed for such. Adding too much information (that is not legally necessary) can result in incorrect interpretations by officials who don't know the law.