Quickbooks self-employed is suddenly excluding my vehicle mileage when calculating taxes. How can this be fixed?

To resolve this issue, we need to ensure the system is tracking the correct timeframe.

Here's how to check:

1. Go to the Taxes menu.
2. Select the Annual taxes tab, and check the year dropdown at the top to ensure it matches the year of your trips.

Next, verify that the business start date is set to on or before the earliest tracked trip for the year. You can find this information in the Vehicle Info section.

Additionally, confirm that all your trips are categorized as Business and not Personal. You can check this in the Mileage section by scrolling down to view your trips.

If the issue continues, we can perform troubleshooting steps for your browser to determine if it is causing the problem.

 by accessing your account through a private or incognito window. You can open this window using Ctrl + Shift + N for Google Chrome, Ctrl + Shift + P for Mozilla Firefox and Microsoft Edge, or Command + Shift + N for Safari. Alternatively, consider switching to a different supported browser to ensure full compatibility and uninterrupted functionality.

Let us know if you have any other questions. We’re here to help.

Check if your mileage rate got reset in the latest update. Go to Settings → Taxes → Deductions and make sure your vehicle expense method is still set to "Standard Mileage Rate" with the correct IRS rate. Sometimes updates revert this to "Actual Expenses" which would exclude your mileage from the auto-calculated deduction.

Also verify that your trips are still being categorized as business (not personal). If a recent update flipped any of your saved trips to personal, those miles won't count toward the deduction. You can batch-edit them back to business in the mileage log.

The tax estimate recalculates based on what QBO thinks is deductible, so if mileage dropped off for one of these reasons, the quarterly estimate would jump noticeably.