For each Invoice2go payment transaction, a fee will be deducted from the amount your customer pays you.
Payments fees for the United States include 2.9% + 30¢ per transaction paid with a debit or credit card. When accepting payments from international cards, including American Express, international fees are the same as domestic, 2.9% + 30¢ per transaction.
For example, for a payment of $100 from your customer, you would pay $3.20 for processing, and Stripe would deposit the remaining $96.80 to your bank.
Because Stripe processes all Invoice2go payments, Stripe collects all payment transaction fees. Check your Stripe Dashboard to see all payments fees collected by Stripe from your transactions.