I'm going to take credit cards over the phone/fax. That means I need some kind of virtual terminal.
I contacted my bank (Bank of America) and got following quote:
I was wondering:
I think First Data would be who is really processing your transactions for BoA.
Check out Fee Fighters to find better rates. I assume that if you are just doing 1-2 transactions they are big and the few questions they ask you will help you find the best choice based on your criteria.
Something like Square is also incredibly easy to sign up for and use with no monthly fees. The rate for swiping cards is relatively high at 2.75% but still even better than BoA. "Card not present" or transactions you manually key in are higher at 3.5% so that might not be worth it for large amounts.
Authorize.NET is not a merchant account but a way to take payments through your website. Is that what you need? A.NET is the most well known but there are alternatives there too.
for the small number of transactions you are doing you can just use paypal.com
no monthly fees, no setup cost, just a pct per transaction