What does aftertax mean?
"Aftertax" is a financial term describing any amount — typically income, profit, or investment return — that remains after taxes have been deducted. It is the mirror image of "pretax" or "gross" figures: while a company may report strong pretax earnings, its aftertax profit shows what actually survives the tax bill, and a worker's aftertax income reflects the money genuinely available for spending and saving. The word functions as an adjective, usually modifying a noun directly ("aftertax returns," "aftertax basis"), and is frequently written with a hyphen as "after-tax," particularly in formal financial writing and British English. Because it captures real, spendable value rather than headline numbers, it carries connotations of practicality and honesty in financial discussion. Analysts, accountants, and journalists rely on it constantly when comparing options on equal footing, since two investments or salaries can look identical before tax yet differ sharply afterward.
adjective (also used adverbially)Remaining or calculated after the deduction of taxes; used to describe income, profits, returns, or figures from which taxes have already been subtracted.
- (of income, profits, or returns) calculated or remaining after taxes have been deducted
- (as an adverbial modifier) on a basis that accounts for taxes already paid
"Her aftertax income barely covered rent in the city."
"The fund reported an aftertax return of six percent for the year."
"After moving abroad, he finally saw how much of his salary had been lost to aftertax deductions at home."
The gap between your pretax salary and your aftertax paycheck is where governments quietly take their cut — and why 'aftertax' is the number everyone actually lives on.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aftertax
The word is a modern English compound formed from the preposition "after" combined with "tax." "After" descends from Old English "æfter," while "tax" was borrowed into Middle English from Latin "taxare," meaning to assess or appraise, via medieval Latin usage. The compound arose in twentieth-century financial and economic writing, as modern taxation systems made the distinction between pre- and post-tax amounts essential. It shares its components with related compounds such as "after-tax" and contrasts with "pretax," built on the same pattern with the prefix "pre-."
How aftertax is actually used
Chiefly a financial and economic term, common in both everyday personal-finance talk and formal reporting. Often written hyphenated as "after-tax," especially in British usage and formal American financial documents. It functions attributively (an aftertax gain) and occasionally predicatively, but it does not stand alone as a noun.
Easily confused with aftertax
"Pretax" describes an amount before taxes are deducted, while "aftertax" describes the amount that remains once taxes have been taken out.