Carrying cash from Singapore to Thailand
Two separate rules apply to any cash journey: one where you leave, one where you arrive.
Do you need to declare?
Yes: and on both legs of the journey. Leaving Singapore, Immigration & Checkpoints Authority requires a declaration above SGD 20,000. Entering Thailand, Bank of Thailand (exchange control) requires a declaration above THB 450,000. The two rules are independent: satisfying one does not satisfy the other.
The two legs
| Leg | Limit | Form | Authority |
|---|---|---|---|
| Leaving Singapore | SGD 20,000 | CBNI declaration (via the Singapore Arrival Card or the official app) | Immigration & Checkpoints Authority |
| Entering Thailand | THB 450,000 | no form | Bank of Thailand (exchange control) |
The same declaration is required when leaving.
No limit applies to bringing baht or foreign currency into Thailand. A customs declaration is required above THB 450,000, or above USD 15,000 in foreign currency banknotes.
If you do not declare
Singapore: An offence under the Corruption, Drug Trafficking and Other Serious Crimes (Confiscation of Benefits) Act 1992.
Neither threshold on this route is a cap: you may carry more, but above it the duty is to report the cash, not to keep under the figure. Failing to report is the offence.
Currencies
Singapore uses SGD; Thailand uses THB.
Sources: rules as of 22 September 2026. This is general information, not legal advice; always check the official authority before travelling.