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    How to Calculate 2016 Idaho 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 2016 Idaho state tax rate and the rules to calculate state income tax

    5. Calculate your state income tax step by step

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      IDAHO STATE TAX TABLES



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    2026 Idaho State Tax Witholding Table
    2025 Idaho State Tax Witholding Table
    2024 Idaho State Tax Witholding Table
    2023 Idaho State Tax Witholding Table
    2022 Idaho State Tax Witholding Table
    (2021  2020  2019  2018  2017  )

    Tax rate used in calculating Idaho state tax for year 2016

    State Abbreviation:

    ID

    State Tax Withholding State Code:

    16

    Acceptable Exemption Form:

    W-4

    Basis For Withholding:

    State or Federal Exemptions

    Acceptable Exemption Data:

    S, M / Number of Exemptions

    TSP Deferred:

    Yes

    Special Coding:

    None

    Additional Information:

    If a state income tax certificate has not been processed or if a valid state exemption code is not present, the Federal exemptions will be used in the computation of state tax.


    Withholding Formula >(Idaho Effective 2016)<
    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 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 times 26 to obtain the annual wages.

    5. Determine the exemption allowance by applying the following guideline and subtract this amount from the annual wages to compute the taxable income.

      6. Exemption Allowance = >$4,000< x Number of Exemptions

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

      7. Tax Withholding Table
      Single

      If the Amount of
      Taxable Income Is:

      The Amount of Idaho
      Tax Withholding Should Be:


      Over:

      But Not
      Over:

      Of Excess
      Over:

      $       0
      $ >2,300
      $    0.00
      plus
      0.0%
      $        0
         2,300
         3,752
            0.00
      plus
      1.6%
         >2,300
         3,752
         5,204
           23.00
      plus
      3.6%
          3,752
         5,204
         6,656
           75.00
      plus
      4.1%
          5,204
         6,656
         8,108
         135.00
      plus
      5.1%
          6,656
         8,108
         9,560
         209.00
      plus
      6.1%
          8,108
         9,560
        13,190
         298.00
      plus
      7.1%
          9,560
        13,190
        and over
         556.00
      plus
      7.4%
        13,190


      Married

      If the Amount of
      Taxable Income Is:

      The Amount of Idaho
      Tax Withholding Should Be:


      Over:

      But Not
      Over:

      Of Excess
      Over:

      $        0
      $  >8,600
      $      0.00
      plus
      0.0%
      $        0
          8,600
           11,504
              0.00
      plus
      1.6%
        >8,600
          11,504
         14,408
            46.00
      plus
      3.6%
          11,504
        14,408
         17,312
          151.00
      plus
      4.1%
        14,408
        17,312
         20,216
          270.00
      plus
      5.1%
        17,312
        20,216
         23,120
          418.00
      plus
      6.1%
        20,216
        23,120
         30,380
          595.00
      plus
      7.1%
        23,120
        30,380
         and over
          1110.00
      plus
      7.4%
        30,380

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