PromptPay with Kasikornbank
Kasikornbank, ธนาคารกสิกรไทย, is the green one, and its app K PLUS is one of the most used banking apps in Thailand. For PromptPay it behaves like every other Thai bank, because PromptPay is a national system: the identifier is registered once to your account, and from then on your code can be paid from any bank's app.
Registering the identifier
Registration connects an identifier (your mobile number, or a Thai national ID number) to one specific KBank account. It happens in K PLUS, at a KBank ATM or in a branch, and it is a one-time step: afterwards anybody can pay you by scanning or by entering that identifier.
Menus move between app versions, so the honest instruction is to look for the PromptPay entry in the app's settings or services area rather than to trust a screenshot from last year. What does not change is the requirement: the account has to be yours, and the number has to be one you control, because confirmation goes to it.
Where your QR code is
K PLUS can show a QR code for your account, which is the fastest route when somebody standing in front of you wants to pay. It lives in the app, which is the limitation: it is there when you open the app and nowhere else.
Because the code is a standard PromptPay payload, it can also exist as an image you keep: in a chat, on a page, printed for a counter. That is the difference between showing a code and having one.
Reading a KBank slip
The green header gives the bank away immediately. Underneath, a KBank slip carries the same four things that matter on any Thai slip: the amount, the receiver with part of the name hidden, the date and time to the second, and a reference number for the transaction.
Check the receiver line even when the bank is familiar: a genuine slip paid to the wrong person looks exactly as convincing as one paid to you. And because transfers are instant, a slip timed several minutes ago with no money in your account has already told you what you need to know.
Paying other banks
A KBank customer can pay any Thai QR code, whatever bank issued it, and a KBank code can be paid from any other Thai app. Nobody needs to be at the same bank as anybody else, which is the whole purpose of a national scheme.
The one thing to check in the app is your own daily limit, which is a per-customer setting rather than a bank rule. It is worth knowing the number before the day you need to pay a deposit.
Using it with SlipDee
SlipDee builds your PromptPay code from the identifier you registered, puts your photo or logo in the middle so it can be told apart from every other code, and keeps it in an album with the rest.
The slips that K PLUS produces end up in your photo gallery like everybody else's. SlipDee reads them there and files each one against the bill it settles, which is how a month of transfers becomes a list you can actually read.
Checklist
- Register the identifier to the KBank account you want the money in.
- Use a mobile number you intend to keep.
- Save your code as an image too, not only inside K PLUS.
- Put your photo or logo on the code so it is recognisable.
- Check your daily transfer limit in the app before a big payment.
- Keep the slips K PLUS generates, filed against what they paid for.
Make your own PromptPay QR
Your code with your photo on it, so friends can see who they are paying. Free, in the browser, and it works with every Thai bank.
Open SlipDeeFrequently asked questions
Can I register the same number at KBank and another bank?
- No. An identifier points at one account, so registering it at KBank takes it away from the other bank. That is deliberate: a transfer to your number has to have one destination.
Is a KBank QR code only payable from K PLUS?
- No. It is a national PromptPay code and any Thai banking app can pay it.
Where exactly is PromptPay in K PLUS?
- In the settings or services part of the app, and the exact label changes between versions. If you cannot find it, a KBank ATM or a branch can register it as well.
Does a KBank slip prove the money arrived?
- No slip does. It is the sender's receipt; your own account is the proof, and it is instant, so checking takes seconds.
Can I use my KBank code for my shop?
- You can, and many stalls do. Once there is bookkeeping, a business identifier keeps shop income out of your personal transfers.
