Contact

This is a small, independently run site — there's no support line or live chat, but a real person reads email sent here.

Get in touch

Email hello@cardprocessingcalculator.com for:

• Corrections — especially to the reference interchange rates behind the interchange-plus calculation, which are sourced and dated and can go stale as the card networks update their schedules.
• Bugs in the calculator itself, or a case where its numbers don't make sense.
• Privacy questions, or anything else about how the site works.

This isn't the place to ask for a processor recommendation — see what happens when you ask for processing quotes for why, and to know what to expect (or not expect) from emailing in.