Free PromptPay QR generator
To generate a PromptPay QR code for an exact amount, enter your PromptPay ID (phone number, national ID, or e-wallet account) and the desired amount in Thai baht into the generator. The tool creates the QR entirely offline, encoding both your account identifier and the precise payment amount directly into the QR code. When a client scans it, they pay that exact amount straight into your own account — no intermediary, no fees, and BillsOS never sees the funds. An amount is optional; if omitted, the payer enters the sum themselves when they scan.
Enter your PromptPay ID (phone / national ID / e-wallet) and an optional amount to get a QR instantly. Generated fully offline into your own account — BillsOS never sees the funds and charges no fee.
A single static QR works for everyone, but the payer types the amount (and can mistype). BillsOS embeds an EXACT-amount PromptPay QR on every invoice, so the client scans and pays straight into your own account.
Put exact-amount QR on every invoice →
No credit card required — start on the free plan.
Why exact-amount QR matters
Encoding the amount means clients do not type the sum, which cuts typos and speeds payment — funds still go straight to your PromptPay account; BillsOS is not a payment intermediary.
Read more: PromptPay for business · Verify a transfer slip.
BillsOS only formats and computes documents for you. This is general information, not tax advice — please confirm with the Revenue Department or your accountant.