PromptPay with Bangkok Bank
Bangkok Bank, ธนาคารกรุงเทพ, is the blue one, and its mobile app is Bualuang mBanking. It is the oldest of the big Thai banks and the one many businesses hold their accounts with, which is why so many printed codes on counters are Bangkok Bank codes. PromptPay itself works identically to every other bank.
Registering the identifier
Your mobile number or a Thai national ID number is connected to one Bangkok Bank account, once, in the app, at an ATM or in a branch. Businesses typically register a tax ID instead, which is the version that keeps shop income out of a personal statement.
The label in the app changes with versions, so look for the PromptPay entry in its services or settings area. Branch registration is a reliable fallback and the usual route for a company account, which needs documents a phone cannot check.
Your QR code
The app will show a code for your account for somebody standing in front of you. For a counter, a flyer, an invoice or a chat you want the code as an image you own, and because it is a standard PromptPay payload you can have exactly that.
For a shop this matters more than it sounds: the printed code is part of the shopfront, and it should look like the shop, with the logo in the middle, rather than like a screenshot.
Reading a Bangkok Bank slip
Blue branding, then the same four lines: amount, receiver with part of the name hidden, date and time to the second, reference number.
Because so many businesses bank here, Bangkok Bank slips are the ones most often shown across a counter, and they are therefore the ones most often faked or reused. The rule does not change: confirm the money in the account, then hand over the goods.
For a business account
A company account has its own conditions for receiving payments, and the bank will tell you which apply to yours. What is worth deciding early is the identifier: a tax ID keeps business takings together and out of the owner's personal transfers.
The bookkeeping follows from that choice. Mixed accounts are the reason somebody spends the last evening of the month deciding which transfers were dinner.
Using it with SlipDee
SlipDee builds the code from the registered identifier, puts your logo or photo in the middle, and keeps every code you use in one album.
The slips the Bualuang app produces land in the gallery, where SlipDee reads them and files each against what it settled, so the month adds up without a spreadsheet.
Checklist
- Choose the identifier before registering: personal number, or tax ID for a business.
- Register to the account the money should land in.
- Keep your code as an image for counters, invoices and chats.
- Put the shop logo in the middle of a printed code.
- Confirm payment in the account before handing anything over.
- File slips against the bills they settle, the same day.
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 a business register PromptPay at Bangkok Bank?
- Yes, normally on a tax ID, and normally with documents, which makes a branch the practical place to do it.
Can customers at other banks pay my Bangkok Bank code?
- Yes. Any Thai banking app pays any Thai PromptPay code.
Where is PromptPay in Bualuang mBanking?
- In the services or settings part of the app; the wording moves between versions. An ATM or branch can register it too.
A customer showed a Bangkok Bank slip. Is that enough?
- No. Look at your own account first, then deliver. Slips are images; accounts are facts.
Should a shop use the owner's personal code?
- It works, and for a stall it is often enough. Once there are books to keep, separate identifiers save more time than they cost.
