How do I change the app store to australian on my ipad??

Question

I have just received my first ipad, however when i try buy an app it says my australian apple ID can not be used to purchase from an American store
Does anyone know how to change the store!???
Thanks

Answer 1

"Although you can browse the iTunes Store in any country without being signed in, you can only purchase content from the iTunes Store for your own country. This is enforced via the billing address associated with your credit card or other payment method that you use with the iTunes Store, rather than your actual geographic location. You can use the iTunes Store in all countries of which you’re a resident, but you’ll either need a separate iTunes Store account for each one, or you’ll need to continually be switching the billing information on your single account. Generally, it’s simpler just to set up an alternative account for these situations, although it’s worth nothing that features like iTunes in the CLoud and iTunes Match are designed to work best when using a single iTunes Store account, as you can only switch accounts with these services every 90 days."
From here > The Complete Guide to Using the iTunes Store | iLounge Article