Reporting business mileage for vehicles also used for personal use

[avigo45]

I am filing a schedule c for a small business. I have two personal vehicles that I used for some driving for the business. Is there an easy way to just report the miles I drove for business? It is asking for all mileage used for personal use, etc. but I only tracked business miles when using these vehicles for that purpose. I did not track my mileage when driving the vehicles for personal use. Thanks

[DavidD66]

No, there's no way to just enter the business miles driven.  I suggest you estimate the other mileage.  The business miles is the most important, so if you tracked that and estimate the other you will be fine. 

[avigo45]

And if I used two cars I would have to do the same for both cars? Is there a reason you can't just input business mileage? Seems unnecessarily difficult 

[AnnetteB6]

Yes, you would have to do the same for both cars.  

The tax laws and IRS reporting requirements do not allow you to simply enter the business miles driven.  There must be documentation and other miles entered so that a business percentage of use can be calculated.

@avigo45