Yes, you can manually enter a credit card's information, but the fees you will be charged will go up. From Square's fees page:
"Your fee will be 3.5% + 15¢ of the total transaction amount for any of the following payment types:
The higher fee for manually entered transactions is due to a greater risk involved with these payments, as neither the payment card nor the cardholder have to be present for the payment to occur."
Here's the link to Square's fees page.
And here's a link to the page that explains how to manually enter a charged/debited sale.
Judy T Shumway
