Currency Exchange in Phuket: How to Check the Rate and Avoid Getting Shortchanged
"Better than the bank" is a low bar тАФ compare to the market, not the bank
Almost any street exchanger or private rate beats a bank тАФ that's a low bar, banks traditionally take a bigger cut. The real comparison point isn't the bank, it's the interbank rate for that specific day (easy to check on xe.com or Google) and 2-3 other exchangers or private offers nearby.
If a quoted rate is noticeably (by several percent) better than every other option around, that's a reason to be cautious, not pleased тАФ a rate that good often hides a fee that appears once the total is recalculated, or a short count on the bills.
The recalculation trick and the invisible fee
A common pattern: a good rate is quoted verbally, then at the actual payout an "operation fee" gets added or the total is rounded against you тАФ on a larger sum the difference can add up.
Ask for the final amount you'll receive stated in full, in Thai baht, before you hand over any money тАФ not in parts or percentages, an actual number.
Count the bills on the spot, before you walk away
Count the bills you receive with a witness present or on your phone camera at the moment of the handover, not after you've stepped away тАФ proving anything after the fact is nearly impossible. This is a standard, reasonable request; no honest exchanger takes offense to it.
A safer way to exchange
Making a request through a vetted contact instead of a random street seller removes some of the risk: the rate and payout amount are agreed in writing beforehand, before the in-person meeting тАФ if something doesn't match what was promised on-site, you have the written agreement as proof.