Русско-англо-русский юридический словарь

In a tax system and in economics, the tax rate describes the ratio (usually expressed as a percentage) at which a business or person is taxed. (Wikipedia)

More than 70% of high earners paid 50% tax rate (BBC News)

The Budget Bill’s technical corrections to last year’s corporate income tax reform include changes to the economic nexus, tax base and income classification, tax rate (including clarifications to rules applicable to certain taxpayers, such as qualified New York manufacturers), apportionment, combined reporting, net operating loss and tax credit provisions. (insidesalt.com)

tax burden. The amount of income, property, or sales tax levied on an individual or business. Tax burdens vary depending on a number of factors including income level, jurisdiction, and current tax rates. Income tax burdens are typically satisfied by deductions from an individual's paycheck each time he or she is paid. Depending on the amount of allowances claimed by the individual, a tax burden may exceed the total amount of money deducted during the taxable period. (investorwords.com)