Note: Tax rates include normal tax of 3 percent plus applicable surtax, and the maximum effective tax rate on net income was 77 percent. Reductions for 1949 were 17 percent of total normal tax and surtax up to $400, 12 percent of tax from $400 to $100,000, and 9.75 percent of tax in excess of $100,000. Last law to change rates was the Revenue Act of 1948."