Q: I use QuickBooks for property management. I currently owe late fees and back interest on a mortgage. How do I record these amounts in QuickBooks?
A: When repaying a loan, you pay the principal amount (what you borrowed) and interest (a percentage of the principal that you have committed to pay). Back interest are interest amounts that you owe from a previous statement. Pick a date from one of the statements. Create a liability account and enter the owed amount as the opening balance.
Depending if the property is a rental or a flip, your accounts could be expense, asset or liability.