Generally the SAP threshold means $150,000, however refer to FAR 13.5, Test Program for Certain Commercial Items, which permits the acquisition of commercial supplies and services up to $6,500,000 using SAP.
A: The Democratic Party. Prior to 1984, income derived from Social Security benefits was exempt from taxation. Amendments to the Social Security Act passed by Congress in 1983 allowed for 50% of Social Security benefits to be considered taxable income for taxpayers whose total income exceeded specified thresholds.
When Did Congress Start Taxing Income: The First Taxes. The Revenue Act of 1861 became the first tax on individual incomes. Congress passed the act to aid in funding the Civil War. Any person living in the United States paid the tax, which was collected from any income derived from any profession.