How long does the 800,000 baht need to season for a Thai retirement visa?

The seasoned-funds period is typically two months before a first application and three months before an annual renewal, though it varies by office — verify with the immigration office handling your case. The balance must stay at or above the requirement throughout.

Can the exchange rate drop my balance below 800,000 baht?

The balance itself is held in baht, so it does not change with the rate once deposited. The risk is at funding time — if you send a fixed number of dollars, a stronger baht buys fewer baht, so you can land below 800,000 if you did not leave a buffer.

How big a buffer should I leave?

There is no official figure, but many applicants keep several percent above the requirement so normal rate moves and any bank fees never pull the balance under the line during seasoning.

The 800k seasoning trap — how the exchange rate can drop you below the line

Because the 800,000 THB retirement-visa deposit must sit in your account for months before you file, a strengthening baht can quietly pull a dollar-funded balance below the line — so you should fund it with a buffer and watch the rate during the seasoning window.

Last updated 2 July 2026

The 800,000 THB retirement-visa deposit is not a payment — it is money you hold in a Thai bank account and let season before you file. That seasoning window is where a quiet, avoidable mistake lives.

Why the rate matters even though the deposit is in baht

Once the money is in your Thai account it is denominated in baht, so day-to-day exchange-rate moves don’t change the balance. The risk is entirely at funding time.

If you think in dollars and send a fixed dollar amount to hit 800,000 THB, the number of baht you receive depends on the rate that day. Fund it with no margin at a moment when the baht is weak, and a later conversion, a bank fee, or simply having cut it too fine can leave you sitting at 799,000-something — under the line — right when the officer looks.

The requirement is fixed in baht; your funding is in dollars. That mismatch is the trap.

The seasoning window

The deposit has to remain at or above the requirement for a set period before you apply. As a rule of thumb it is around two months before a first application and three months before an annual renewal, but it varies by immigration office, so confirm the exact rule for the office handling your case. Fall below the requirement at any point during that window and the clock can reset — or the application can be refused.

How to avoid it

Fund with a buffer. Aim comfortably above 800,000 THB — many applicants keep several percent of headroom — so ordinary rate moves and fees never pull you under.
Convert at the mid-market rate. The less you lose moving the money, the smaller the buffer you need. See how to fund the deposit the cheapest way.
Top up early, not late. If the balance drifts toward the line during seasoning, add funds well before you file, not the week of.
Keep the paper trail. A credit advice showing the money arrived from abroad, plus statements covering the whole seasoning window, are what the office wants to see.

What today’s figure looks like

To see the current dollar cost of the 800,000 THB deposit at the mid-market rate — the number your buffer sits on top of — use how much is 800,000 baht in USD, and the full breakdown on the retirement visa cost in USD page.

Sources: Thai Ministry of Foreign Affairs , Bank of Thailand .

Questions & answers

How long does the 800,000 baht need to season for a Thai retirement visa?: The seasoned-funds period is typically two months before a first application and three months before an annual renewal, though it varies by office — verify with the immigration office handling your case. The balance must stay at or above the requirement throughout.
Can the exchange rate drop my balance below 800,000 baht?: The balance itself is held in baht, so it does not change with the rate once deposited. The risk is at funding time — if you send a fixed number of dollars, a stronger baht buys fewer baht, so you can land below 800,000 if you did not leave a buffer.
How big a buffer should I leave?: There is no official figure, but many applicants keep several percent above the requirement so normal rate moves and any bank fees never pull the balance under the line during seasoning.