brwill2005 said:I am not an accountant or a tax lawyer; are you?
I am a CPA
brwill2005 said:I said nothing about deducting $5000 per detail. I think if he keeps it reasonable, he should not have a problem. Again, this is only if he is using the actual expense method. I use the mileage deduction, so things such as vehicle maintenance are built into that deduction.
While I know you said you were not deducting $5000, I was simply responding to your comment where you said, "just deduct the same amount that you would charge someone for that service". My reply was that if Paul Dalton lived in the US and was to perform one is his $5000 details (which he charges customers) to his own work van, he could not write it off. The only thing you could write off is what actually came out of your pocket or your actual expenses for the supplies you used.
For example, if a CPA bills $200 an hour and it takes him three hours to do the return of his own CPA firm, he could not deduct $600 as tax preperation fee on his taxes since the $600 did not actually come out of his pocket.
The exception to this is where the IRS for simplicity says you can use a different method such as the standard mileage deduction for cars than trying to determine how much gas you used while working on client cars, what percentage of depreciation to apply to business expense etc..