Exchanging Euros for Thai Baht: What to Know First

You saved up for the trip and, just to keep things simple, withdrew part of it as one large note — 500 euros. Easy to carry, barely takes up space in your wallet. In Thailand, that same note gets turned away by some exchange counters entirely, and accepted at a noticeably worse rate than a 50-euro note by others. Since 2019, the European Central Bank has stopped printing 500-euro notes altogether, specifically because of anti-money-laundering requirements — though notes already in circulation remain legal tender. Here's what that means for you.

Why a bigger bill isn't always more convenient

With US dollars, the main issue is a bill's age and condition. With euros, it's different: the main issue is denomination. Notes of 200 and especially 500 euros are accepted at the standard rate less often, because they're harder to break down for everyday spending, and a large cash denomination draws more scrutiny during source-of-funds checks on its own. That's exactly why the ECB stopped printing 500-euro notes — they became associated more with large, opaque transactions than with ordinary travel spending.

The practical takeaway is simple: the larger the bill, the less likely it is to get the rate you saw posted for smaller denominations.

What happens at an EXFM office

EXFM (Fast Money Exchange) is licensed by the Bank of Thailand under No. MC225670007. EUR exchange happens only in person, at one of the offices in the Surin, Karon, or Rawai areas of Phuket, open daily 10:00–22:00.

You bring your passport and your bills, a manager checks the notes, and confirms the exact baht amount before you agree to anything. If you're carrying 200 or 500 euro notes, it's worth messaging a manager in advance to confirm the terms for those specific bills — a couple of minutes of back-and-forth saves you a trip made on guesswork.

What rate to expect

The EUR-to-baht rate follows the market and is adjusted by denomination — 20 and 50 euro notes usually get the standard rate, while 200 and 500 euro notes are confirmed individually. EXFM tells you the exact amount before you hand over your bills, with no recalculating after the fact.

When not to exchange euros in cash

• 200–500 euro notes — confirm the rate with a manager in advance rather than assuming the posted rate for smaller notes applies.
• A large sum for rent or a property purchase — EXFM has a separate transfer and payment service for cases like this, safer than moving large bills around.
• Breaking down cash gradually through a trip — it's faster and more cost-effective to exchange your whole budget once than to make several office visits.