How do tax rates differ between the U.K. and Thailand for expats?

After 180 days you are automatically a 'tax resident' in Thailand. However, you only have to register for tax purposes if you remit into Thailand an 'assessable sum'. What is assessable is determined by the double tax agreement. A UK State pension is assessable.

UK and Thailand have a double taxation agreement. Talking to a professional is the right move, but in laymans terms - you are only ever a tax resident of one country (unless you are American... they practice citizenship based taxation, no matter where your are resident).

I can't speak for the Thai side, but the UK side...

Once you are UK non-resident, you only pay tax on UK source income.

Any tax you do pay in the UK can be claimed as a foreign tax credit on your Thai return. That's an offset. If you aren't liable for any tax in Thailand, you don't get that back as refund.

The UK paperwork is actually pretty easy - can be done online with HMRC self-assessment.

James you still have to pay uk income tax at 20% if you relocate to Thailand uk tax allowance is reduced. In Thailand income tax is 5 or 7 % hope that helps

If you are more than 180 days in any country you are liable to pay tax... if you are not in a country for 180 days, you pay zero tax in that country.... you actually, legally dont have a choice in this, however any country will just take your tax if they can.

Income tax is world wide.

I think that all those people that claim that you have to pay tax in Thailand should do us a massive favour and show their Thai tax returns

No real problem on £18k?!

Nonsense. There are very clear rules as in UK. Only nuts deny this

If this will open, take a look at it as it will tell you all about HMRC and how they know you have left the UK. Goes into tax residency etc.

Your U.K. pension is U.K. sourced income so will always be subject to U.K. tax whether or not you are resident there. So if you become tax resident in Thailand you will be taxed in the U.K. on your U.K. sourced income then claim treaty benefits so that it isn’t taxed in Thailand as well. Any other income might be subject to Thai taxes.

Have to pay tax in uk if over 12,500 pounds per year , I do , then send money to my thai wife account for living no pay tax I ok to 2029 , money come from savings

Anything you pay tax on in the UK in non taxable in Thailand as you have already paid tax on it. If you have any income that hasn't been taxed on in the UK including savings you pay tax in Thailand if you have been in the country for more than 180 days

I strongly suggest that you have a word with

Carl turner and his team do an excellent job and have informative videos and blog posts.

You can't just opt out of UK tax. Even if you are not resident for tax purposes you will still have to pay tax on most of your UK derived income. If you transfer income to Thailand in a year you are a Thai tax resident you will also have to complete a Thai tax return, although not necessarily pay tax particularly as there's a Dual Tax Agreement between the UK and Thailand. If you are over 65 and single you can claim at least 250k baht in allowances, then the 1st 150k is exempt. There are other allowances you may or may not be able to claim for health insurance etc. That gets you to 400k baht plus before you claim a credit for tax already paid on the money you bring in. Make sure whoever you speak to understands dual tax agreements

if your income is UK based then you are taxed in the UK

If your interest is earned on a UK bank, you'll be paying UK taxes.

150,000thb tax free brought in annually January to January.

Additional 150,000thb if married to Thai.

Additional 30,000thb if have a child here with you.

Wife can also bring in150,000thb so if you can live off then amount then all good and no taxes to pay but if you need more to come over here then the next 150,000thb is taxable starting at 5%. If you have no rent to pay then this is possible with no taxes to pay here

Go pull up the tax tables.