Send a refund for a purchase

You can send refunds within 60 days of receiving a payment. Refunds are available only for transactions involving the purchase of goods and services.

It’s flexible

You can send a full or partial refund.

It’s affordable

Your original transaction fee is credited to you. When issuing partial refunds, a portion of the fee is credited.

It's easy.

1.Log into your PayPal account
2.Click the History subtab.
3.Find the purchase payment you would like to refund and click Details.
4.Click the Issue Refund link.
5.Enter the refund amount and click Submit.
6.Confirm the amount and click Submit.

For more information, download our Website Payments Standard Integration Guide (PDF, 4.6 MB, March 2008)

Source: https://www.paypal.com/hk/cgi-bin/webscr?cmd=xpt/Marketing/bizui/SendRefund-outside