Yeah.., well (sfb), don't give up your day job either.., it's you, and
others like you who are "working" up into July or August of the year just to
pay taxes you never owed to begin with (smile)!!
I'm sure if you can fly (and land) an aircraft, then you're able to do a
little research on the smiple definition of "income", as in Income Tax
(grin)..!!
Sorry brother, but just Goggle that question and you can cross a rabbi's
eyes with teying to define the phrase.., and believe it or not.., various
tax codes won't do it either without a P/L..!!
To the rest of you "aviators" out there.., just go down your check list
before playing a tax you can't define. If you don't understand how to fly
an aircraft, I suggest you not fly until you do!
And if you don't understand what a tax is, who it applys to, or who is
"libel" to pay it.., then don't pay it until some taxing authority shows
you, and you do understand it..!! Enough said..!!

The old fart with the wind in the wires...!!!