21 minutes ago, SamSpade said:

It might help if you stated which country you're from but in the UK you need to spend a minimum of 16 days in the UK to be Tax Resident but this goes up to 121 days depending on how long you've been Non Tax Resident and how many "Ties" you have to the UK.

NB Just because you pay tax in your home country, doesn't mean you're Tax Resident there as things like Property Rental Income is typically taxed in the country where the property is.

I'm from Belgium, and they know I'm living and be tax resident in Thailand.

My pension is taxed in Belgium.

1 hour ago, brewsterbudgen said:

So confusing! I've lived and worked in Thailand since 2005. I used to complete a UK Self-assessment return as I was renting a property in the UK. I sold this property (my main UK home) in 2008 and HMRC advised me I no longer needed to complete a Self-assessment return. Now I get a private pension which is taxed via PAYE and soon I will get a UK state pension, which I assume will also be taxed. I also have UK savings and investments which, I'm told are subject to tax. Yet, I haven't lived in the UK since 2005.

Your State pension will go into your "Pot" 1st & will be taxed but at 0% because of your Personal Allowance. Your private pension is then added on top of this so you will pay more tax on it because you'll have used up most of your Personal allowance on the State Pension.

UK Investments & Interest can be treated as "Disregard Income" BUT you will lose your Personal Allowance so you need to work out whether the additional tax you're paying on Investment Income is greater than £2,514 (20% of 12,570), might be worth getting an accountant to do your SA for you, costs approx. £250.

Link to HMRC Non-Residents and Investment Income guidelines

https://www.gov.uk/government/publications/non-residents-and-investment-income-hs300-self-assessment-helpsheet/hs300-non-residents-and-investment-income-2023

2 minutes ago, SamSpade said:

Your State pension will go into your "Pot" 1st & will be taxed but at 0% because of your Personal Allowance. Your private pension is then added on top of this so you will pay more tax on it because you'll have used up most of your Personal allowance on the State Pension.

UK Investments & Interest can be treated as "Disregard Income" BUT you will lose your Personal Allowance so you need to work out whether the additional tax you're paying on Investment Income is greater than £2,514 (20% of 12,570), might be worth getting an accountant to do your SA for you, costs approx. £250.

Link to HMRC Non-Residents and Investment Income guidelines

https://www.gov.uk/government/publications/non-residents-and-investment-income-hs300-self-assessment-helpsheet/hs300-non-residents-and-investment-income-2023

Thanks, that's clear. I don't get the state pension yet (9 months to go) but PAYE still take out tax from my Company pension every month, even though I'm sure I haven't used up my Personal Allowance. Maybe it will be automatically adjusted, as the code keeps changing.

2 minutes ago, brewsterbudgen said:

Thanks, that's clear. I don't get the state pension yet (9 months to go) but PAYE still take out tax from my Company pension every month, even though I'm sure I haven't used up my Personal Allowance. Maybe it will be automatically adjusted, as the code keeps changing.

Assuming it's the 1st tax year that you've started recieving the pension, then as you've been out of the PAYE system for so long you won't have a Tax Code so they would start you of an Emergency Tax Code probably 125X which means you have the 12,570 Personal Allowance & this is the 1st PAYE taxable income you've recieved.

1st month they would multiple the amount by 12 and tax you as though that is the amount you're going to be earning for the rest of year which is obviously wrong unless your pension started on the 6th April!

After the 1st month HMRC should amend your Tax Code to (Probably) 125L & adjust the amount of Tax you're paying to reflect the fact that you paid too much the previous month, ideally this would straighten things out but if your pensions started late in the Tax Year you may have overpaid quite a lot of Tax.

Can check your Tax Code here: https://www.gov.uk/check-income-tax-current-year

If you're still owed Tax & it's been paid via PAYE, HMRC should send you a "P800 Tax Calculation Letter" which would show how much Tax you've overpaid then you can reclaim it via Self Assessement. Might be worth doing an SA even if you haven't recieved a P800.

Edited June 11Jun 11 by SamSpade

21 hours ago, CallumWK said:

Every Thai is resident for tax purposes, regardless how many days he stays in Thailand.

I stay in Thailand 365 days a year, yet in my home country I'm still a tax resident for income in my home country.

Well your home country sucks - most of the rest of the world is not like that. Raw deal!