Moving a Large One-Off Sum Into Thailand: Inheritance, a House Sale, or Business Proceeds

Inheritance money. The proceeds of a house sold back home. A business wound down overseas. These are different situations with one thing in common: a single large transfer landing in Thailand all at once, rather than the steady trickle of a pension or a monthly remittance. That changes what your bank asks for, and — since 29 December 2025 — it changes the Bank of Thailand's own documentation requirements too.

The $200,000 threshold that now applies to inbound transfers

A Bank of Thailand circular effective 29 December 2025 tightened source-of-funds documentation for inbound foreign-currency transfers of USD 200,000 or more, specifically where the inflow falls into one of four scrutiny categories: real estate investment, digital-asset proceeds, non-intercompany capital transfers, and a catch-all “miscellaneous / unclassified” bucket. Full source-of-funds verification now applies to any transfer in those categories at that size.

This sits alongside — and is separate from — two older, lower thresholds that still apply: the long-standing USD 50,000 mark above which banks automatically issue an FET form (or Credit Advice) and report the transfer to the Bank of Thailand, and a domestic AMLO reporting threshold around THB 5 million (roughly USD 150,000) for large transactions generally. A lump sum in the low hundreds of thousands of dollars can trip all three at once — that's not a red flag by itself, just the normal paperwork for a transfer this size.

Which provider actually handles a transfer this size well

Everything else on this site is written for transfers in the hundreds to low thousands of dollars. A six-figure lump sum is a different problem: the provider needs a large-transfer desk, a way to lock in a rate while the paperwork is sorted, and — just as important — documentation that cleanly shows the money's foreign origin.

• OFX routes Thailand transfers as genuine international SWIFT wires rather than through a Thai domestic intermediary, so the paper trail showing foreign origin stays clean — the exact thing the new $200k rule wants to see. No published transfer maximum; negotiated rates available through a dedicated contact for transfers at this size.
• Xe has a dedicated large-transfer desk for amounts above roughly $50,000 a year and offers forward rate orders up to 24 months out — useful if the sale or estate settlement is itself going to take months and you want to lock a rate now.
• CurrencyFair is a reasonable peer-to-peer option for mid-size transfers, but we haven't yet confirmed its per-transaction cap at this size directly with the provider — worth checking before relying on it for a genuinely large sum, rather than assuming it scales the same way as a smaller transfer.
• Wise is excellent for the transfers covered elsewhere on this site, but it's a specific liability here: Wise often pays out via a Thai intermediary bank, which can make the receiving bank's documentation show the deposit as domestic rather than foreign in origin — exactly the ambiguity the new $200k documentation rule is designed to catch. Worth avoiding for this specific scenario even though it's a fine choice for smaller transfers.
• WorldRemit is ruled out outright — its own published cap on bank transfers into Thailand is a flat ฿49,999 per transaction, far below anything relevant here.

Read the full OFX review and Xe review for the detail behind each of these, or the Wise review if you're moving part of the sum as a smaller, separate transfer where the intermediary-bank issue doesn't matter.

Three different Thai tax questions — don't let them blur together

A large lump sum raises tax questions that are easy to conflate but are actually three separate regimes, each with its own trigger:

1. Gift tax. Applies to living-donor gifts, with thresholds of ฿10 million (gifts from non-close relatives) or ฿20 million (from parents, spouse, or children) before tax applies to the excess. This is a receiving-side, Thailand-tax-resident concept.
2. Inheritance Tax Act. Applies to Thai-situated assets left to a single heir above ฿100 million — a threshold that generally doesn't catch an inheritance from a foreign estate being transferred into Thailand, since the assets themselves were never Thai-situated.
3. Foreign-income remittance rules. These tax assessable income brought into Thailand by a tax resident. Inheritance and gifts generally aren't “assessable income” and shouldn't be swept up by this rule — but this is a genuinely unsettled area in practice, especially once inherited funds get commingled with other, taxable income after they arrive. See our remittance tax guide for the broader rules this sits inside.

What actually causes problems, based on forum reports

A recurring pattern across ASEAN NOW and r/Thailand discussion of large transfers: people who keep documentation on hand and land the money in its own, separate account report far fewer follow-up questions than people whose lump sum arrives into an account that's also handling everyday spending, where it gets commingled almost immediately. The second pattern makes it much harder, months later, to point to a specific inflow and say “that's the inheritance, here's the executor's letter.”

One thing we'd actively advise against, despite seeing it suggested online: splitting a large transfer into several smaller ones specifically to stay under a reporting threshold. This is structuring, and it's a well-known red flag to banks and regulators precisely because it looks like an attempt to avoid scrutiny — it tends to invite more questions, not fewer, and can trigger an anti-money-laundering review that a single, well-documented transfer wouldn't have.

A practical checklist before you wire it

• Call your Thai bank's international transfers desk before initiating the transfer and tell them what's coming — the amount, the source (inheritance, property sale, business wind-down), and ask what documentation they'll want on arrival.
• Gather source documents in advance: the executor's letter or grant of probate for an inheritance, the sale contract for a property, or wind-down/dissolution paperwork for a business.
• Use a provider built for this size — OFX or Xe, not an app-based service designed around smaller, frequent transfers.
• Let the funds land in a separate, clearly-labeled account rather than your everyday spending account, at least until the paper trail is settled.
• Get a short tax consultation before the transfer, not after, if there's any chance the funds could be read as assessable income rather than a gift or inheritance.

If the lump sum is actually the reverse of this — money leaving Thailand rather than arriving — the rules and the provider shortlist are different; see our guide to repatriating money from Thailand.