interest charge account

Happy to help, @Eve2019.

Tracking finance and interest is super easy to do in QuickBooks Desktop. Check it out:

1. Click on Lists, then Chart of Accounts.
2. Find and double-click the appropriate credit card account.
3. At the blank line at the bottom of the register, select the Payee field and choose the credit card company.
4. In the Charge column, enter the amount.
5. Select the Account drop-down and choose the expense account you want to use for tracking annual, finance, and other bank service charges. 
6. Select Save.

If you haven't setup the expense account, you can do so by following these quick steps:

1. Go to Lists at the top menu, then Chart of Accounts.
2. Click the Account drop-down at the bottom, then New to create a new account.
3. Select an account type, then Continue.
4. Enter the account details.
   1. Select the Subaccount of checkbox if it's a child account.
   2. From the drop-down, choose the parent account.
5. Select Save & Close.

That's it! For more information on tracking credit card accounts, check out: Set up, use, and pay credit card accounts

Come back if you have any other questions. I'm only a reply away.