wrote:
Robert M. Gary wrote:

"some companies.. including the federal gov't, already have in a
"mileage
allowance" "

Actually, this is something set by the IRS. If a company pays you more
than the mileage allowance (this is for cars) you must show receipts to
the IRS that your vehicle costs more to operate, otherwise you will be
taxes on the difference as ordinary income.


About two years ago I recall reading that there was a rate of
$0.975/mile for use of GA aircraft. Auto rate was about $0.37 at the
time. I'm not sure if this was official IRS rate or a contract rate set
by GSA or somehting similar.

DoD through the GSA defines what can be charged against a Govt contract.
http://www.dtic.mil/perdiem will get you to the current GSA site and
you can dig for "use of personal airplane". But don't bother -- it's
always limited to the customary charge on a normal scheduled airline.
Now, Southwest is charging only $39 for many flights so you're not going
to get much reimbursement.

You and your company might have an agreement that lets the company pay
for your airplane. You probably won't run afoul of the FAA if the plane
is not required for the business ("incidental") but you should check
with a CPA about whether the money from your company in excess of the
normal airline rate is taxable income if you want to get the IRS
interested in your case.