Similarly, you will probably want to create accounts for any real-world liabilities, such as a loan.
If you want to track the value of real-world assets, like a home or vehicle, you can create accounts for those, too. You should create a separate account for each of the accounts you have in real life (like your checking account, your savings account, your credit card, your 401(k), any brokerage accounts you have, and so forth). Accounts in Quicken represent the assets and liabilities you have in the real world.