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by abalone 4632 days ago
That's not really the main reason. Ecommerce interchange is higher than card present but only by maybe 15-30 basis points (0.15-0.30%).

There are online processors that offer much lower rates than 2.9% + $0.30 if you meet certain qualifications as a merchant. Amazon goes as low as 1.9%.

The main reason that certain processors have such a high rate is the lax signup requirements. It allows higher-risk and outright fraudulent merchants to use them. So yes, card-not-present has a slightly higher fraud baseline, but the key factor here in the rate is the merchant qualification.

Source: http://usa.visa.com/download/merchants/visa-usa-interchange-...