
Two separate problems get tangled together here, and untangling them saves people a lot of money.
The first is moving money cheaply. That one is solved, and the answer is boring.
The second is moving money in a way immigration will accept as evidence. That one is not solved by the same answer, and it is where people come unstuck at renewal.
The 800,000 baht rule, as it is actually applied
For the annual extension of stay based on retirement, there are three qualifying routes.
The lump sum. ฿800,000 in a Thai bank account in your sole name. The seasoning periods are the part people get wrong:
| Stage | Requirement |
|---|---|
| Before your first application | ฿800,000 held for two months |
| Before each annual renewal | ฿800,000 held for three months |
| After permission is granted | ฿800,000 must stay for a further three months |
| The rest of the year | Balance must never fall below ฿400,000 |
Read that as a cycle rather than a rule. Eight hundred thousand in for three months before the appointment, eight hundred thousand in for three months after it, then no lower than four hundred thousand for the remaining six, then back up again.
We should be honest about one thing. The underlying Police Order says “the past three months” with a sixty-day exception for the first year, and the 2019 amending order as quoted by Thai law firms says “at least two months prior to filing date” without distinguishing first application from renewal. Those two readings genuinely conflict, and we could not find a current Immigration Bureau text settling it. Treat three months as the safe assumption for renewals. Nobody is ever penalised for seasoning the money too long.
The income route. ฿65,000 a month. This used to be evidenced with a letter from your embassy. The United States stopped issuing those on 1 January 2019, on the grounds that it has no mechanism to verify individual incomes. The United Kingdom stopped on the same date, with the last applications taken on 12 December 2018. Australia and Denmark are widely reported to have followed, though we could not confirm that from either embassy directly.
What replaced it is twelve months of Thai bank statements showing monthly credits of at least ฿65,000, ideally visibly arriving from abroad.
The combination. Twelve times your monthly income, plus your Thai bank balance, must reach ฿800,000. Whatever deposit you use is subject to the same seasoning.
The account must be in your name alone. Joint accounts are sometimes accepted, but immigration presumes half the balance is your spouse’s regardless of who deposited it, which means holding double to prove the same thing.
If you are extending on a Thai spouse rather than retirement, the figures halve: ฿400,000 in the bank for two months, or ฿40,000 a month in income. The mandatory three-month hold after approval does not appear in the marriage clause of the order, although some practitioners report offices applying one anyway.
Why “it has to come from abroad” is not quite a rule
Immigration officers in some provinces want to see that the ฿800,000 arrived from overseas rather than being borrowed baht cycled through a Thai account.
This is not written into the Police Order. It is office-level practice, best documented for Chonburi and Jomtien, and we could not establish whether Prachuap Khiri Khan Immigration, which covers Hua Hin, enforces it. Assume they might.
What Thai banks issue as proof:
A Foreign Exchange Transaction Form, still widely called a Thor Tor 3, is generated for inbound transfers of USD 50,000 or more. Below that threshold, the bank issues a credit advice — a letter confirming a specific credit and its overseas origin. Either document shows the foreign currency amount, the baht amount after conversion, the sender, the receiver and the purpose.
Ask for it at the time. Reconstructing a credit advice for a transfer from eighteen months ago is a bad afternoon.
Moving the money: what it costs
We ran live quotes on 6 August 2026 for a ฿10,000-equivalent transfer.
| Sending | Fee | Cost |
|---|---|---|
| £10,000 via Wise | £64.18 | 0.64% |
| $10,000 via Wise | $66.85 | 0.67% |
| €10,000 via Wise | €75.57 | 0.76% |
| £10,000 via Wise, paid by debit card | £95.67 | 0.96% |
Wise applies the mid-market rate, so the stated fee is the whole cost. A UK high-street SWIFT wire is a sending fee of £15 to £25 plus an exchange-rate margin of two to five per cent, which puts the same transfer somewhere between two and five per cent all in. On £10,000 that is a difference of roughly £150 to £450.
Then there is the charge nobody budgets for. Thai banks take a receiving fee on inbound foreign currency. Bangkok Bank, SCB and Krungsri all charge 0.25 per cent with a minimum of ฿200–300 and a maximum of ฿500. The cap is the useful part: on a large arrival it is trivial, about 0.11 per cent on ฿442,000. On a ฿65,000 monthly pension transfer, the ฿200–300 minimum is 0.31 to 0.46 per cent, every month.
Revolut is worse than it looks for this purpose. On the free plan only £1,000 a month of currency exchange is fee-free, then one per cent. And there is a weekend markup from Friday evening to Sunday evening — reported at two per cent on baht, which is classed as an exotic currency. Do not move your visa money on a Saturday.
Western Union and Remitly are built for small remittances. Neither publishes an all-in cost at ฿10,000 scale, both embed an undisclosed exchange margin, and both have tiered limits. We would not use either for a visa lump sum.
The cheapest transfer produces the worst paperwork
Here is the trap.
Wise is explicit about how it works: it uses Thai banking partners to pay you locally. In its own words, the money “doesn’t cross any borders.” Wise also states plainly that it is not authorised by the Bank of Thailand to issue a confirmation of international fund transfer.
The practical result is that a Wise transfer can land in your passbook as a domestic credit — something like “Deposit/Transfer via e-Channels IB” — rather than as an incoming international payment. If your immigration office wants to see foreign-origin funds, that line does not show it.
A SWIFT wire, for all that it costs three to six times more, posts as an international credit and generates a credit advice automatically.
There is also a limit worth knowing: Wise transfers into Thailand cap at somewhere between ฿500,000 and ฿2,000,000 depending on the receiving bank. An ฿800,000 lump sum may need splitting, which means two credit advices to chase.
So the sensible split for most people is this. Use Wise for living costs, where nobody will ever ask where the money came from. Use a SWIFT wire, once, for the money that has to satisfy immigration — and accept the extra two per cent as the price of a clean paper trail. Or use Wise and go to your Thai branch afterwards and request a credit advice in person.
Pensions
The UK State Pension is frozen in Thailand. Annual increases are paid only to residents of the European Economic Area, Switzerland, or countries with a reciprocal social security agreement permitting uprating. Thailand is on neither list. Your pension is fixed at the rate in payment when you moved, and it stays there. Successive UK governments have declined to change this for over seventy years, and there is no sign of that shifting.
Work out what that means over twenty years before you assume the sums work. It is the single most under-modelled number in a retirement-to-Thailand budget.
You can have it paid into a Thai bank account or a UK one. Paid abroad it goes out every four or thirteen weeks, converted at the rate on the day, with a conversion charge of 0.39 per cent. That charge is competitive, and paying into a Thai account has a second benefit: it produces regular, visible, foreign-origin credits, which is exactly what the ฿65,000 income route needs.
US Social Security is payable in Thailand. Thailand is on the Social Security Administration’s Country List 4, and there is a Thailand-specific direct deposit form, SSA-1199-OP107. Payments are converted to baht automatically. The receiving account must be baht-denominated. Note that nonresident aliens have thirty per cent withheld from eighty-five per cent of the benefit, an effective 25.5 per cent, unless a treaty exemption applies; this does not apply to US citizens abroad.
On QROPS, and we are deliberately brief because this is regulated advice we are not qualified to give: transfers to a Qualifying Recognised Overseas Pension Scheme attract a twenty-five per cent UK overseas transfer charge unless an exclusion applies, the most relevant exclusion being that you and the scheme are in the same country. We could not confirm that any Thailand-based scheme sits on HMRC’s list, which would mean that exclusion is not available to you. Talk to a regulated adviser in your home jurisdiction. We are not one.
Thai tax on money you bring in
This changed in 2024 and people are still working from the old rules.
What is in force. If you are a Thai tax resident, foreign income you bring into Thailand is assessable in the year you bring it in, regardless of the year you earned it. The old approach of leaving income offshore for a calendar year and then remitting it tax-free is gone.
The carve-out that most current retirees rely on. Foreign income earned before 1 January 2024 is not caught, whenever you remit it. Capital and income accumulated before that date can be brought in without Thai tax. To use it, you need to be able to evidence when the money was earned, not just when it was sent. Keep the statements.
What is not in force, despite being widely discussed. A draft exemption for income remitted in the year it was earned or the following year has been proposed since mid-2025 and, as of July 2026, has still not been published in the Royal Gazette. A separate draft would tax Thai residents on worldwide income whether or not it is remitted, by amending Section 41 of the Revenue Code. Neither is law. Neither has a published timetable. Do not plan around either.
Residency is not optional for a retiree. You are a Thai tax resident if you are here more than 180 days in a calendar year. Somebody on an annual retirement extension is here for essentially all of it. There is no realistic way to hold the visa and avoid the threshold.
Notice the tension the two systems create. The visa requires you to bring ฿800,000, or ฿65,000 a month, into Thailand. The tax rule taxes remitted post-2024 foreign income. Those rules point in opposite directions, and the pre-2024 carve-out is what stands between most retirees and a bill.
Thailand has double tax agreements with the UK, the US, Germany and Sweden, among fifty-odd others, so tax paid at home can generally be credited against Thai liability. But commentary on the UK treaty suggests the State Pension gets no specific relief and is fully assessable in Thailand when remitted. We could not read the treaty text to verify that. If this affects you materially, pay an accountant.
What actually gets applications rejected
Not the amount. The paperwork.
The bank letter being too old. Sources say seven days, others say three; offices differ. Get it the day before, or the same morning.
The passbook not being updated. Go to a branch and update it the same day or the day before.
The account being joint, or the name not matching your passport exactly.
The balance dipping below ฿400,000 during the protected window. That one bites at the next renewal, not the current one, which is why people do not notice until it is too late.
Credits that show as domestic when the officer wanted to see foreign.
Take the passbook, the bank letter, a full printed statement covering the seasoning period, and the credit advices. Over-prepare. The cost of a wasted trip to immigration is a day; the cost of a refused extension is considerably more.
What to do next
Open the Thai account first — see our guide to opening a Thai bank account — then move the visa money in one clean SWIFT wire well before the seasoning clock needs to start.
If your route is the ฿65,000 monthly income, set the pension to pay directly into the Thai account and leave it running for twelve months before you need to prove anything.
And if you are still deciding between the lump sum and the income route, our retirement visa guide covers the trade-off. Send us your rough position and your timeline and we will tell you which one is less work in your situation, and where the dates get tight.
Not sure where to start?
Thirty minutes on a call, no obligation. We will tell you what is realistic for your timeline and what to do first.
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