Today, I paid a $1000 bill with a credit card that has a $1500 credit limit. (Note, I have changed the numbers slightly here, but the ratios are roughly correct.) The bill has not yet been posted to my account. Can I add $1000 to my account now, knowing that that $1000 bill will show up soon?
The reason for wanting to do this: I understand that it can hurt your credit to carry a balance on a credit card that exceeds 20% of your total credit limit. From this answer I understand that it's a good idea to pay off your bill multiple times per month to keep this ratio low (I've been doing that for years anyway). I'm considering buying a house within the next few months, so I'm being extra paranoid about my credit rating.