See this article for detail on Pledge's fees.
It summarizes the charges for:
Payment card processing
- Pledge covers payment card fees for donations less than $1,000 for Pledge-owned and -hosted products: Donation Forms, Fundraiser Pages, and our Donations by Pledge Zoom App.
otherwise 2.9% + 30¢ per charge are deducted from the donation to pay our service providers
One of the following usually applies, although there are exceptions if the costs are sponsored or the donor elects "cover our costs:"
- tips, if enabled. Tips are optional and adjustable by the donor.
- if tips are not enabled, there is a 3% technology fee (if the donation form was not configured for optional tips)
disbursement-related fees
$5 per payout if gross payout is over $20
additional fee for disbursements to organizations outside the U.S