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Should We Adopt William Vickrey’S Cumulative Averaging Income Tax System? Progressivity And Simplicity In Tax Reform, Neil H. Buchanan

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This paper focuses on William Vickrey’s proposal to replace our current annual system of tax assessment with a new tax system that bases assessments on lifetime cumulative average income. After reviewing two key arguments in favor of the social goal of progressivity in taxation (a goal that Vickrey shared), I have examined whether adopting Vickrey’s cumulative averaging system would achieve a compelling change in the fairness of the tax system. While the current system undeniably creates a problem of horizontal inequity in that people with similar lifetime incomes can pay different tax rates based on the timing of those incomes, …