Circular No. 72-Income Tax Rates of income-tax for the assessment year 1971-72 3. The rates of income-tax for the assessment year 1971-72 in the case of all categories of taxpayers, corporate as well as non-corporate, are specified in Part I of the First Schedule to the Finance (No. 2) Act, 1971. These rates – summarised in Annexure I to this circular – are the same as were specified in Part III of the First Schedule to the Finance Act, 1970,