Your full contribution, including transaction fees, is tax deductible. Your donor-advised fund contribution will be the adjusted amount after transaction fees are deducted.

Fee Schedule
Each payment method has its own fee, plus a 3% platform fee added to every transaction:

Payment Method Fees
Credit Card 2.4% + $0.30 (additional 1% for American Express)
ACH (Bank Transfer) 1% + $0.30
PayPal & Venmo 2.5% + $0.30