The fruit shake near Siem Reap's Old Market costs two dollars. You hand over a five. The vendor smiles, gives you back one US dollar, and then counts out a fan of riel notes, four thousand here, a thousand there, until you are holding a small paper bouquet you cannot price in your head. You say thank you, walk away, and quietly wonder whether that was right. It probably was. Cambodian vendors are, in my experience, scrupulously fair about this. But you will do that same mental exercise fifteen times a day, and by day three you have a pocket full of small riel notes that no one, including you, particularly wants to count.
This is the part of Cambodia money advice that guidebooks undersell. The question is not just "how do I avoid ATM fees in Cambodia." It is "how do I avoid living inside a two-currency arithmetic problem for my entire trip."
One country, two currencies, and the math you never stop doing
Cambodia runs on US dollars and Cambodian riel at the same time. Menus in Phnom Penh often show dollars. The night market in Battambang might quote you riel. Big amounts tend to be in dollars, small amounts and change tend to be in riel, and the unofficial conversion everyone uses in their head is a round number that is close enough for street level life.
For visitors this creates three recurring headaches. First, you are constantly converting twice: your home currency to dollars, then dollars to riel, often mid-sentence while a tuk tuk driver waits. Second, riel has no coins in everyday circulation, so every small transaction generates more small notes. Third, the condition of your dollar bills matters. A torn or heavily creased US note can get politely refused, which is a uniquely Cambodian way to discover that the cash in your money belt is not as liquid as you thought.
The ATM run costs you three separate times
Now layer the ATM on top. Pulling cash in Cambodia as a foreigner typically means a fee from the local machine, possibly a foreign transaction charge from your home bank, and an exchange rate that may or may not be the one you would have chosen. If the machine offers to convert to your home currency on screen, that convenience usually comes with its own worse rate baked in.
And here is the Cambodia-specific twist: most ATMs dispense US dollars, often in larger bills. So after paying to get cash, you then face the small-change economy with a fifty dollar note that a coconut vendor genuinely cannot break. You end up buying things you do not need just to split bills, and every one of those purchases hands you more riel change. The ATM did not solve your money problem. It gave you a new denomination problem.
KHQR: the sticker that quietly fixed Cambodian payments
While visitors were busy fanning out riel notes, Cambodia built one of the cleaner QR payment systems in Southeast Asia. It is called KHQR, it runs on the Bakong system, and the red and white QR sticker is now taped to counters everywhere: coffee shops in BKK1, market stalls in Psar Thmei, guesthouses in Kampot, the lady selling num pang sandwiches from a cart. One standard code works across the banks and wallets locals use, which is why you will see Cambodians of every age scanning for amounts as small as a bag of fruit.
For locals, KHQR solved the exact problems that plague visitors. No change to count. No worrying whether a bill is too worn. No ambiguity about whether the price is in dollars or riel, because the amount shows on the screen before anyone confirms. Watch a Cambodian pay for lunch and you will notice the whole exchange takes about four seconds and involves zero paper.
Getting into that system as a foreigner
The catch, historically, was that joining the KHQR world meant having a Cambodian bank account or a local wallet, which is paperwork most travelers and even many expats never do. This is where Moreta Pay earns its spot on your phone. You top up the wallet from home, through a US bank connection, SEPA in Europe, UK Faster Payments, a Canadian e-Transfer, or an international card, all in your own currency. Then you scan the same KHQR sticker the locals scan. The app shows the merchant name, the amount, and the exact FX rate before you confirm, so the dollars-or-riel question stops being your problem. The merchant gets paid instantly in their currency, and you get a clean record of what you actually spent.
That pre-confirmation screen matters more in Cambodia than almost anywhere else, precisely because of the dual currency. Instead of squinting at a price and doing two conversions, you see one number in terms you understand, every time. It is the same transparency that makes QR life pleasant in neighboring countries, something we covered when looking at spending two weeks in Thailand without an ATM, except Cambodia arguably benefits even more because cash there is twice as confusing.
It also smooths out transport. Cambodian drivers often prefer settling up front, and a QR scan makes that painless instead of awkward (there is a whole logic behind why drivers here ask you to pay before the ride). Scan, confirm, show the screen, go.
Where a little riel still earns its place
Honesty time: do not go fully cashless in Cambodia. Keep a modest stash of small riel notes for the moments QR has not reached. Temple donation boxes. A remote stall out past the Angkor circuit where the vendor's phone is at home. Restroom attendants. A tuk tuk driver in a small town who works purely in paper. The goal is not zero cash, it is flipping the ratio, so cash becomes the rare backup instead of the daily grind, and so your riel pile stays a thin fold instead of a brick.
A sensible rhythm for a Cambodia trip in 2026 looks like this: pay everything you can by scanning KHQR, keep the equivalent of a few dollars in small riel for edge cases, and skip the airport exchange counter entirely. If you booked rooms or activities online through platforms like Agoda or Trip.com, QR-based checkout can cover those too, which means even your pre-trip spending avoids the hidden foreign transaction fee trap.
Let the riel stack stay small
Cambodia is an easy country to love and a surprisingly fiddly country to pay in, until you join the system locals already use. The KHQR sticker is on nearly every counter you will stand at, and the only thing standing between you and it is a wallet that speaks Bakong. Set up Moreta Pay and top up before you land, and your first fruit shake can end with a scan and a smile instead of a handful of mystery notes. Get your wallet ready before Cambodia, and leave the riel arithmetic to someone else.
