Tax_Reduction_and_Simplification_Act_of_1977
The Tax Reduction and Simplification Act of 1977 was passed by the 95th United States Congress and signed into law by President Jimmy Carter on May 23, 1977.[1]
It replaced the percentage standard deduction and minimum standard deduction with a single standard deduction of $3,200 (joint returns) and temporarily extended the general tax credit (maximum of $35/capita or 2% of $9,000 income) through 1978.