The Hauser Curve shows that raising the highest income tax rate rarely raises much revenue.

The Hauser Curve shows that raising the highest income tax rate rarely raises much revenue.

Higher tax rates encourage tax avoidance and slow down the economy.

The best way to turbo-charge the economy and enhance tax collections is with a @SteveForbesCEO flat tax. pic.twitter.com/M6W0bgASzQ

— Stephen Moore (@StephenMoore) September 23, 2026