A balance transfer check is a check issued by your credit card company that allows you to shift debt from one account to another. These checks are similar to regular checks, but instead of drawing funds from a bank account, they draw from your available credit limit. You can then use the funds to pay off or reduce debt on one account, and it will be added to the account you draw from.
Today, balance transfer checks are less common. Transferring balances online or over the phone is more common and typically faster. Still, some card companies issue balance transfer checks. For example, you can request Chase balance transfer checks and make it out to yourself.
View these checks as a strategy for managing or reducing high-interest debts rather than a form of short-term loan. However, remember that the lower rate is usually a promotional offer and can increase after a specific time frame.