HT4895: Using your Apple ID for Apple servicesLearn about Using your Apple ID for Apple services
Currently Being ModeratedFeb 12, 2013 8:27 AM (in response to cassiedawson25)
With your current Apple ID you can't.
If you create a new Apple ID following Apple's directions to the letter, you can have an account that does not require a payment method.
Creating an iTunes Store, App Store, iBookstore, and Mac App Store account without a credit card -Mac mini, OS X Mountain Lion (10.8.2), iPad 4, iPhone 5 (iOS 6.1)