It means "Something" too although one as an "Indivudual" can look their own "Situation" & "Evaluate" that then put other "Adjusments" into play.
Truthfully 4 me was an "Accountant" Old Guy he looked over everything told me what I needed 2 do and been much better off since as well I hadda "Pay Him" too but like most people I dont understand that kinda stuff nor do ya see the "Whole Picture"
Our Tax Code itself fills entire pallets page 4 page stacked up.
Every Politician & Lobbyist on "K-Street" has "Their" CARVE OUT in there.
"FLAT TAX" people just a "Percentage" Across the Board and ya can file ya Income Tax on a Buisness Card too.
But "No" cant be that simple oh no