HB 1719 -- Income Tax Deduction for Social Security Taxes Sponsor: Bivins Currently, a taxpayer can deduct the amount withheld for Social Security and federal Medicare taxes before determining his or her Missouri taxable income only if the taxpayer itemized his or her deductions on the federal return. This bill authorizes an additional income tax deduction for the amount of Social Security and federal Medicare taxes withheld whether or not the taxpayer itemized his or her deductions on the federal return. The provisions of the bill will expire six years from the effective date.Copyright (c) Missouri House of Representatives