Subscription Renewal Receipts

Why is it so hard to search for my iCloud Renewal Receipts? I know they are emailed to my account once the credit card is charged but I don't think about saving or printing it out right away. And then come March/April, I need a copy of the receipt for tax purposes. This is the only time I think about printing it. But I don't know where to find it. Please help. I'm sure I'm not the only one who's having a problem.