Top Up

Select "FAST Transfer".
You'll be presented with a summary of your top up details. Press "Make Payment" to continue, or "Change Top-up Method" to top up via another method instead.
Open your online banking app, and make a transfer of the desired amount to the account details given in step 3. Your account will be credited instantly.

Select "PayNow QR".
You'll be presented with a summary of your top up details. Press "Make Payment" to continue, or "Change Top-up Method" to top up via another method instead.
Press "Save QR to Photos", or take a screenshot of the QR code.
Open your online banking app and make a "Scan & Pay" payment by uploading the screenshot of your QR code from your photo album. Your account will be credited instantly.
Top tip: Most online banking apps give you the option to upload a screenshot of a QR code. Also note that the QR code changes for each top up.
If you are using PayNow, make sure to screenshot the QR code on your phone to make the payment from your banking app

Select "GrabPay QR".
You'll be presented with a summary of your top up details. Press "Make Payment" to continue, or "Change Top-up Method" to top up via another method instead.
You'll be redirected to your Grab app - enter your login details and press "Next".
Enter the PIN number sent to you via SMS.
Click "Pay" and enter your Grab PIN number. Your account will be credited instantly.
Top tip: Make sure your Grab wallet has sufficient funds before you top up your card.