From Longman Dictionary of Contemporary Englishregressive taxreˈgressive ˌtax noun [countable] PETa tax that has less effect on the rich than on the poor
Examples from the Corpus
regressive tax• A regressive tax structure is one in which the average tax rate falls as income level rises.• A new education bill remained unfunded, and reform of a famously regressive tax system made no progress.From Longman Business Dictionaryregressive taxreˈgressive tax [countable]TAX a tax where people with low incomes pay a larger percentage of what they earn than those with high incomesa regressive tax on the savings and retirement income of millions of Americans → tax 