You can edit any of your deduction entries by going to the Tax Savings tab of your app, tapping on the entry, and editing it to include the proper deduction details.
You can edit delete a drive or expense by taking these steps:
1. On your Tax Savings screen, click "View all transactions"
2. Swipe left on the transaction you'd like to delete until you see the red "Delete" option, and then click "Delete"
You can also delete your records by clicking into the specific expense, clicking "Edit," and then clicking the red "Delete" button at the bottom of the screen.
Unfortunately you cannot edit a recorded drive. You'll need to delete the incorrectly recorded drive, and then manually add in the drive with the appropriate mileage!