Guides

Money, Currency and Cards for Regional Trips

A hand tapping a contactless card on a payment terminal at a market stall
Short answer

Short trips use three currencies - Malaysia's ringgit (MYR), Indonesia's rupiah (IDR) and Thailand's baht (THB). A practical mix is local cash for hawkers and markets, with a card or wallet for malls, hotels and transport.

Short trips from Singapore mostly use three currencies - the Malaysian ringgit (MYR), the Indonesian rupiah (IDR) and the Thai baht (THB). You don’t need anything fancy to handle them well; a sensible mix of cash and card covers almost every situation. This is general information to help you plan, not financial advice, and we don’t recommend specific products.

Currencies at a glance

Know which currency you’ll use, and keep a rough mental conversion so prices make sense.

Card listing the ringgit, rupiah and baht and Singapore’s S$20,000 cash declaration threshold

Currencies and the Singapore cash-declaration threshold. Source: ICA; Singapore Police Force, October 2026.

Cash or card?

A practical approach for the region:

  • Carry some local cash for hawker stalls, wet and night markets, small shops, taxis and tips - many small vendors are cash-only or prefer it.
  • Use a card or mobile wallet at malls, chain restaurants, hotels and for transport where contactless is accepted, which is increasingly common in cities.

Where to change money

You can change money before you leave (money changers in Singapore are widely used for ringgit and common currencies) or on arrival. Compare rates rather than taking the first counter, and be wary of airport-counter markups. Withdrawing local cash from an ATM abroad is an option too, but check your bank’s foreign-transaction and ATM fees first.

Two things that quietly cost you

The other easy miss is your card itself: notify your bank of travel if your card has fraud blocks, and carry a backup card in case one is declined.

Singapore’s cash declaration rule

This one is a legal requirement, not a tip. If you carry physical currency and bearer negotiable instruments (CBNI) worth more than S$20,000 (or the foreign-currency equivalent) into or out of Singapore, you must file a CBNI declaration (Form NP 727) - online within 72 hours before you travel, via ICA’s channels. There is no cap on how much you can carry; the rule is simply to report above the threshold.

Sources

  1. Taking Cash In and Out of Singapore (CBNI) — Immigration & Checkpoints Authority (ICA) (as of October 2026)
  2. Cross-border cash movement reporting — Singapore Police Force (as of October 2026)