If a refund I send is accepted, are the fees from the original transaction credited to my account?
You can refund the entire amount of a transaction or portions of it. The default refund period is 180 days from the transaction date.
If you refund a payment for goods or services, there are no fees to issue the refund, but the fees you originally paid as the seller are not returned to you. The amount of the refunded payment will be deducted from your PayPal account.
You can also make a full or partial refund after 180 days following the date of the original payment. You can use the Send Money feature of your account to refund someone more than 180 days after the date of the original payment.
To learn more about transaction fees, click Fees at the bottom of any PayPal page.