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How to Calculate 2021 Kansas 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 2021 Kansas 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 Kansas small businesses here.
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Kansas State Tax Tables

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

Tax rate used in calculating Kansas state tax for year 2021

State Abbreviation:

KS

State Tax Withholding State Code:

20

Acceptable Exemption Form:

>K-4<

Basis For Withholding:

>State< Exemptions

Acceptable Exemption Data:

>S, M / Number of Exemptions<

TSP Deferred:
Yes

Special Coding:
>Determine the Total Number Of Allowances Claimed field as follows:
First Position - S = Single; M = Married.
Second and Third Positions - Enter the total number of allowances claimed. If less than 10, precede with a zero.<

Additional Information:

>If an invalid state exemption code is present, SINGLE will be used in the computation of state taxes.<


Withholding Formula >(Kansas Effective 2021)<
  1. Subtract the 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. Multiply the adjusted gross biweekly wages times 26 to obtain the annual wages.
  4. Determine the exemption allowance by applying the following guideline and subtract this amount from the result of step >3< to compute the taxable income.

    Exemption Allowance = $2,250 x Number of Exemptions Claimed on Federal Form K-4

  5. Apply the taxable income computed in step >4< to the following table to determine the Kansas tax withholding.

    6. Tax Withholding Table
    Single
    or
    Head Of Household

    If the Amount of
    Taxable Income Is:

    The Amount of Kansas
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:
    $        0
    $   3,000
    $      0.00
    plus
    0.00%
    $        0
        3,000
       18,000
            0.00
    plus
    3.1%
        3,000
      18,000
     33,000
     465.00
    plus
    5.25%
      18,000
      33,000
     and over
     1252.50
    plus
    5.7%
      33,000


    Married

    If the Amount of
    Taxable Income Is:

    The Amount of Kansas
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:
    $         0
    $   7,500
    $      0.00
    plus
    0.00%
    $        0
         7,500
       37,500
            0.00
    plus
    3.1%
        7,500
       37,500
     67,500
      930.00
    plus
    5.25%
      37,500
       67,500
     and over
      2505.00
    plus
    5.7%
      67,500

  6. Divide the annual Kansas tax withholding by 26 to obtain the biweekly Kansas tax withholding.

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