@Frangipani ******

they wont track, you decide what money is assesable or non assesable. Any money you had before 2024 is non assesable regardless of when you bring it to Thailand in the future. (You need documentation showing your balance as of end of 2024). Anything added to those monies is assesable if you transfer it , its upto you to seperate it best you can. If you live off of post 2024 interest its assesable, if you live off of pre 2024 capital its not assesable. You have to be able to prove its pre 2024 money (or pre tax residency) if and when asked, not them. If you cant, then you would need a tax consultant to sort out the liabilty. For the post 2024 assesable earnings you just prove for the last tax year you have paid taxes already in that year as part of the tax return.

@Jim *******

i'm afraid i am, Thailand has the right to tax any individual who resides here more than 180 days on any assesable income remitted to Thailand. This right has always been in place. Tax residency in another country has no bearing to my knowledge unless its in the DTA, which it is not for UK citizens (the OP is British). Be careful with the word income, a tax resident has to declare assesable remitted money would be a better description, as lots of people equate income to wages only, not pensions, capital gains etc (where not excluded in a dta).

@Jim *******

please correct me where you feel i'm wrong, remember the OP is asking about a bank transfer of 800k only.

If you bring it to Thailand in a year that you aren't a tax resident, then its non assesable. If its from cash in the bank that was held prior to /24 again its non assesable. Pretty much everything else is treated as assesable income, and if your country has a DTA (the country where the money is transfered from), you can use tax already paid as a credit to negate the tax owed in Thailand. Beware of becoming a tax resident, then making a capital again abroad and then remiting the money, as there maybe more tax owed than tax previously paid ddpending on your countries tax rules.

The stage your at you shouldn't need any documentation, other than your passport (which should have your 90 day report receipt in it, if applicable). For the extension, Brandon has supplied the checklist.

@Jim *******

if you call 12 years new, i haven't disagreed with you at any point, and have agreed that its a good visa if you travel, and if you can constantly travel within 90 days you would never need to report.

While the window for 90 day reporting is -14 to plus 7, to maintain a full 180 stay between bounces and only do 1 report you have to report on the 90th day or later. If you use mail the report date will always before the 90th day.

@Jim *******

i agreed if your a frequent traveller, its a good visa. But your initial comment read as if you could retire here, and just leave and return at 180 days. In that scenario the situation is as i described, although you correctly pointed out you could use registered mail, but this would usually mean a second report required as your first will be shy of 90 days depending on the date received and processed.

@Jim *******

agree, but you were describing bouncing every 180 days (which you also wouldn't need to do if you were a frequent traveller). So your pattern is arrive, register TM30, at 90 days go to IM to report (first time in person), at 180 days bounce, register tm30, at 90 days go to IM report (first time in person), at 180 days bounce, rinse and repeat.

@Jim *******

and visit IM every 180 days or so to do 90 day report.

And you need to keep more than 400k in the bank just in case you get any bank charges that would otherwise take it below 400k.