Thai Baht (THB): Complete Guide for Visitors and Investors

The Thai Baht (THB, ฿) is one of the most stable and well-managed currencies in Southeast Asia, and Thailand is one of the easiest countries in the region to handle money in. Whether you're a tourist bouncing between Bangkok and the islands or a long-term resident, understanding the baht and the local payment landscape will save you meaningful money.

A brief history

The baht is one of the oldest currencies in active use, with roots going back to the silver coinage of the Sukhothai era over 700 years ago. The modern baht was formalized in 1897 under King Chulalongkorn. For most of the 20th century the baht was pegged to the US dollar, but the 1997 collapse of that peg triggered the Asian Financial Crisis — an event still central to Thai economic policy today.

The Bank of Thailand

The Bank of Thailand (BOT), founded in 1942, is the central bank. Since 2000 the BOT has run an inflation-targeting framework with a managed-float exchange rate. The baht typically trades in a band of roughly 30-37 per US dollar over multi-year cycles, with the BOT leaning against rapid moves. Tourism inflows, electronics exports, and gold imports are major drivers of baht strength.

Stability vs other Southeast Asian currencies

Compared to the Vietnamese dong (managed crawling peg) or the Indonesian rupiah (more volatile float), the baht sits in a sweet spot — relatively free-floating but managed enough to avoid violent swings. For long-term planning (relocations, property purchases, recurring transfers), the baht's predictability is a genuine advantage.

Where to exchange in Bangkok

• SuperRich (orange and green branches). Widely considered the best cash exchange rates in Thailand — often within 0.3-0.5% of mid-market. Multiple branches around Bangkok including Chidlom, Pratunam, and the major BTS stations.
• Vasu Exchange. Strong rival to SuperRich, especially around Sukhumvit. Comparable rates.
• Major banks (Bangkok Bank, Kasikorn, Krungsri). Solid rates, fully official, but typically 0.5-1.5% worse than SuperRich.
• Hotel front desks and airport kiosks. The usual warning — markups of 5-10% are normal. Avoid except for small emergency amounts.

ATMs and the 220 baht fee

Almost every Thai ATM charges foreign cards a flat 220 baht fee (~$6) on top of any fees from your home bank. This is set by Thai banks, not your bank, and there's no way around it. The fix: withdraw larger amounts less often. Pulling 20,000 baht once is much better value than 5,000 baht four times.

Tipping and cash usage

Tipping isn't deeply ingrained but is appreciated. Round up taxi fares, leave 20-50 baht for good restaurant service, and tip massage therapists 50-100 baht. Cash is still common for street food, markets, and small vendors, though card and digital payment acceptance has exploded in the last few years.

PromptPay and TrueMoney

Thailand has built one of the most successful real-time payment systems in the world: PromptPay. It links bank accounts to phone numbers and national ID numbers, enabling instant, free transfers via QR code. Nearly every restaurant, market stall, and taxi in Bangkok accepts a PromptPay QR.

TrueMoney Wallet is the dominant e-wallet, useful for topping up phones, paying utilities, and small online purchases. Both services typically require a Thai bank account, so they're more relevant for residents than tourists, though some PromptPay-linked prepaid travel cards now exist.

Tourist tax and other considerations

Thailand has periodically discussed introducing a small per-visitor tourist tax (around 300 baht), though implementation has been repeatedly postponed. Current visitors should still budget for the airport departure tax (typically already bundled into airline tickets) and any 7% VAT on consumer purchases — VAT refunds are available for goods over 2,000 baht purchased at participating retailers.

Verify rates before you exchange

For any meaningful exchange, pull up the xchangepro.app converter on your phone and compare the SuperRich rate against the live mid-market rate. Thailand is one of the few countries where you can routinely get within 0.5% of mid-market in cash, so don't settle for hotel or airport rates. For the full toolkit of how to handle money abroad, see our traveler's guide to currency conversion.

The takeaway

The baht is stable, well-managed, and easy to handle. Use SuperRich or Vasu for cash, withdraw larger ATM amounts to amortize the 220 baht fee, and embrace QR payments wherever they're available. If you're also visiting Vietnam on the same trip, our Vietnamese Dong profile covers the very different cash culture next door.