Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Will a credit card issuer cancel an account if it never incurs interest?
Technically, yes but, in practice, no.  I use a card for everything and pay it off every month. Sometimes, several times a month depending on how the month is going. In the last 10 years, I've paid a total of $8 in interest because I legitimately forgot to pay my balance before the statement came out when I was out of town. I wasn't late, I just didn't beat the statement and had a small interest charge that I couldn't successfully argue off.  In the same time period, I've had one card cancelled at the banks request. The reason was that I hadn't used it in two years so they cancelled me.  I never pay annual fees, I get cards with great rewards programs and I (almost) never pay interest. If your bank cancels your card because you're too responsible, find a better bank.