car mileage expense for self employed

[jimmmk]

My wife does home healthcare for the same person, she drives the same distance round trip 6 days a week. What is the simplest way to file this? Do you needs to attach a mileage log? It comes out to about 7500 miles a year.  so can we use a C-EZ? 

Basically we never did this before, I have done a 1099 with no deductions but never one with a deduction.

[MaryK1]

Yes, you can deduct the mileage- see the article below and please start keeping a mileage log (in your case it will not be difficult- that shows the days and odometer reading).  You do not have to send the IRS the information with your tax return, but if you are audited (and this is happening more) you will have to show them the records.  You can use the C-EZ if the total expenses are less than $5,000.

Can I deduct mileage? - TurboTax® Support