Explore the self-employment tools to use and share with Taxpayers. Encourage them to come in net year prepared1
Business Mileage
From Get it Back Campaign- CASH Campaign from Maryland
Click on the image for a very simple Mileage Tracker from GOFAR. A small notebook in a car is also a great inexpensive tool. There are online apps, many charge a fee and some can crash, causing the Taxpayer lose their data.
Encourage them to find a method that works for them and stick with it.
From Keepertax.com an awesome Online Mileage Log -- in Google Sheets which can be converted to Excel (click image to open--then save a copy to your Google Drive)