2021 Legislative Session


The following changes are effective for the tax year beginning January 1, 2021, and will be reflected on the 2021 Missouri Individual Income Tax Returns.

Due Date

The due date for the 2021 Missouri Individual Income Tax Return is April 18, 2022. The extension due date for the 2021 Missouri Individual Income Tax Return is October 17, 2022.

Tax Rate Changes – Indexed for Inflation

    If the Missouri taxable income is...
    The tax is...
    $0 to $108 $0
    At least $109 but not over $1,088 1.5% of the Missouri taxable income
    Over $1,088 but not over $2,176 $16 plus 2.0% of excess over $1,088
    Over $2,176 but not over $3,264 $38 plus 2.5% of excess over $2,176
    Over $3,264 but not over $4,352 $65 plus 3.0% of excess over $3,264
    Over $4,352 but not over $5,440 $98 plus 3.5% of excess over $4,352
    Over $5,440 but not over $6,528 $136 plus 4.0% of excess over $5,440
    Over $6,528 but not over $7,616 $180 plus 4.5% of excess over $6,528
    Over $7,616 but not over $8,704 $229 plus 5.0% of excess over $7,616
    Over $8,704 $283 plus 5.4% of excess over $8,704

     

Missouri Standard Deduction

Missouri’s standard deduction is equal to the federal standard deduction. Below are the standard deduction amounts that changed for the 2021 tax year:

  • Single - $12,550
  • Married Filing Combined - $25,100
  • Married Filing Separate - $12,550
  • Head of Household - $18,800
  • Qualified Widow(er) - $25,100

Revision to Current Income Tax Deduction

  • The Home Energy Audit Expenses deduction expired December 31, 2020.

Long-term Dignity Savings Account Income Tax Deduction

  • This deduction allows individual taxpayers to establish and contribute to a long-term dignity savings account to help fund expenses they may incur in the future as a result of being in a long-term care facility. The contributions to the savings account may then be deducted on the Missouri individual income tax return beginning with tax year 2021. The deduction may not exceed the Missouri adjusted gross income and is limited to $4,000 per taxpayer ($8,000, if married filing combined). FAQs are located here.

New Subtraction from Federal Adjusted Gross Income

  • Beginning with tax year 2021, 100 percent of any retirement benefits received by any taxpayer as a result of the taxpayer's service in the Armed Forces of the United States, including reserve components and the National Guard of this state, may be subtracted from the federal adjusted gross income.

Capitol Complex Tax Credit

  • The new Capitol Complex Tax Credit will be administered by the Missouri Department of Economic Development. Under subsection 4 of Section 620.3210, RSMo, a taxpayer can take 50 percent of an eligible monetary donation to the Capitol Complex Fund as a tax credit, not to exceed the tax liability. The credit can be carried forward four years or refunded to the taxpayer. Under subsection 5 of Section 620.3210, RSMo, a taxpayer can take 30 percent the value of an eligible artifact donation to the Capitol Complex Fund as a tax credit, up to the tax liability. The credit can be carried forward for four years, but cannot be refunded.

Trust Funds

  • The Missouri National Guard Foundation trust fund was sunsetted on December 31, 2020, terminated on September 1, 2021, and is no longer available for donations.