Allow me to help and make sure your mileage is tracked accurately in QuickBooks Self-Employed.
The error you encounter typically appears when the business miles recorded for a vehicle exceed the total miles entered. To resolve this, you can review and correct the mileage entries to ensure accurate reporting.
Here's how:
Go to the Gear icon.
Select Vehicle info.
Choose the Vehicle.
Change the Tax year.
Scroll down and enter the total miles under Tax Info.
Then, click on Save.
For more information and troubleshooting steps on how you can fix the issue, check out some of the solutions from these articles: