A low-interest credit card allows you to pay your rent, even if you do not have the funds readily available in your bank account. You can pay off your credit card over a longer period of time.
Many low-interest credit cards allow you to get cash back or other rewards and incentives for the money that you spend on your rent, as well. That means you receive payments from the credit card company for using its card to pay your rent. This ensures that you are able to get the most bang for your buck while you meet your financial obligations.