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How to Calculate 2023 Missouri State Income Tax by Using State Income Tax Table

1. Find your income exemptions

2. Find your pretax deductions, including 401K, flexible account contributions ...

3. Find your gross income

4. Check the 2023 Missouri state tax rate and the rules to calculate state income tax

5. Calculate your state income tax step by step

6. If you want to simplify payroll tax calculations, you can download ezPaycheck payroll software, which can calculate federal tax, state tax, Medicare tax, Social Security Tax and other taxes for you automatically. You can try it free for 30 days, with no obligation and no credt card needed.

Learn more about the in house payroll tax solution for Missouri small businesses here.
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Missouri State Tax Tables

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2025 Missouri State Tax Witholding Table
2024 Missouri State Tax Witholding Table
2023 Missouri State Tax Witholding Table
2022 Missouri State Tax Witholding Table
2021 Missouri State Tax Witholding Table
( 2020   2019   2018   2017   2016   )

Tax rate used in calculating Missouri state tax for year 2023

State Abbreviation: MO
State Tax Withholding State Code: 29
Basis for Withholding: State exemptions and the amount of Federal Income Tax witheld each pay period.
Acceptable Exemption Form: MO W-4
Acceptable Exemption Date: S, M, N, H/Total Allowance Claimed
TSP Deferred: Yes
Special Coding:

Determine the Total Number of Allowances Claimed field as follows:
First position - S = Single;
M = Married, One Spouse Working;
N = Married, Both Spouses Working;
H = Head of Household
Second and Third Positions - Enter the total number of allowances claimed. If less than 10, precede with a zero.
Additional Information: None


Withholding Formula >(Missouri Effective 2023)<
  1. Subtract the nontaxable biweekly Thrift Savings Plan contribution from the gross biweekly wages.

  2. Subtract the nontaxable biweekly Federal Health Benefits Plan payment(s) (includes dental and vision insurance program, and flexible spending account - health care and dependent care deductions) from the amount computed in step 1.

  3. Add the taxable biweekly fringe benefits (taxable life insurance, etc.) to the amount computed in step 2 to obtain the adjusted gross biweekly wages.

  4. Multiply the adjusted gross biweekly wages by 26 to obtain the annual wages.

  5. Determine the standard deduction by applying the following guideline and subtract this amount from the annual wages.

    6. If the Employee Is: The Standard Deduction Is:
    Single >$12,950
    Married (One Spouse Working) 27,700
    Married (Both Spouses Working) 13,850
    Head of Household 20,800<

  6. Apply the taxable income computed in step 5 to the following table to obtain the annual Missouri tax withholding.

    7. Tax Withholding Table

    If the Amount of
    Taxable Income Is:

    The Amount of Missouri
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

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    Of Excess
    Over:

    $       0 $1,207 $    0 plus 0% $      0
      $1,207   2,414     0 plus 2.0%   $1,207
      2,414   3,621     24 plus 2.5%   2,414
      3,621   4,828     54 plus 3.0%   3,621
      4,828   6,035     90 plus 3.5%   4,828
      6,035   7,242   132 plus 4.0%   6,035
      7,242   8,449   180 plus 4.5%   7,242
      8,449   and over   234 plus 4.95%   8,449

  7. Divide the annual Missouri tax withholding by 26 and round to the nearest dollar to obtain the biweekly Missouri tax withholding.
 

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