Carrying cash from Thailand to Japan
Two separate rules apply to any cash journey: one where you leave, one where you arrive.
Do you need to declare?
Part of this route is a hard limit, not paperwork. Leaving Thailand, Bank of Thailand (exchange control) caps what you may carry at THB 50,000, a prohibition, not a form. Entering Japan, Japan Customs requires a declaration above JPY 1,000,000. The two rules are independent: satisfying one does not satisfy the other.
The two legs
| Leg | Limit | Form | Authority |
|---|---|---|---|
| Leaving Thailand | max THB 50,000 | no form | Bank of Thailand (exchange control) |
| Entering Japan | JPY 1,000,000 | Declaration of Carrying of Means of Payment | Japan Customs |
Thai baht banknotes may be taken out up to THB 50,000 per person, rising to THB 2,000,000 for travel to Cambodia, Laos, Malaysia, Myanmar, Vietnam and the Yunnan province of China. Foreign currency banknotes may be taken out only up to the amount bought from an authorised bank or money changer. A customs declaration is required above THB 450,000 or USD 15,000 equivalent.
Required when the total exceeds ¥1,000,000 or its equivalent. The threshold falls to ¥100,000 if you are travelling to or from North Korea.
If you do not declare
Japan: Penalties under the Foreign Exchange and Foreign Trade Act.
There is no limit on how much you may legally carry in either direction, the duty is to report it, not to keep under it. Failing to report is the offence.
Currencies
Thailand uses THB; Japan uses JPY.
Sources: rules as of 22 September 2026. This is general information, not legal advice; always check the official authority before travelling.