Amex lowered their fees in 2015 through their Optblue program. They're still a little bit higher than Visa/MC, but much closer than they were. If you're still g

Amex lowered their fees in 2015 through their Optblue program. They're still a little bit higher than Visa/MC, but much closer than they were. If you're still getting high Amex (3.5% or more) your processor is pocketing the difference between that and the lower costs.