Hi there, @jskotnicki.
You can manually enter the mileage in your QuickBooks Online (QBO) account through the mileage menu. The option to import mileage data is only available in QuickBooks Self-Employed (QBSE) through a CSV file.
Here's how to manually track mileage in your QBO account:
- Go to Mileage.
- Click on Add Trip.
- Add the trip date, starting/ending locations, distance, and trip purpose.
- Select Save once you're done.
You'll learn more in these links on how to track mileage in QBO:
Should you have more questions about mileage, feel free to message us again. We're always glad to help.