How do I check my Starbucks Card balance?
Go to Starbucks.com/card, enter the 16-digit Starbucks Card number and 8-digit Card Security Code (CSC), then select "Check Balance."
If your Starbucks Card is registered, sign in to your Starbucks account, go to My Cards and select the Card you wish to view the balance on.
From the Starbucks Mobile app for iPhone®: Refresh your balance by going to the "Pay" shade, tap "Manage" and then tap the Refresh Balance icon to the right of the Card name and balance.
From the Starbucks Mobile app Android™: Refresh your balance by tapping on the “four lines” to the top left of the screen, then tapping on the “Refresh Balance” option when it pops up.