You can find and download your subscription and gift receipts right from your Account Settings under the Me tab > Receipts.
Subscription and SmugMug Source receipts.
Just click the word Receipt on the line item you want a receipt for and a new window with a downloadable PDF will open in your browser.
Click the save/download icon to save a copy of the receipt to your device.
If you previously subscribed using Amazon Payments, you can find a copy of your receipt here.
Order and gift receipts.
Any print orders you've placed as the logged-in account owner can also be found in your Account Settings under the Me tab > Receipts. Scroll down until you see the Gift of SmugMug and My Orders sections.
Click on an order number to open the details for that order.