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How to Calculate 2018 Georgia 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 2018 Georgia 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 Georgia small businesses here.
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Georgia State Tax Tables

Tax rate used in calculating Georgia state tax for year 2018

State Abbreviation:

GA

State Tax Withholding State Code:

13

Acceptable Exemption Form:

G-4 or W-4

Basis For Withholding:

State Exemptions

Acceptable Exemption Data:

S, M, N, H / Number of Exemptions

TSP Deferred:

Yes

Special Coding:

Determine the Total Number Of Allowances field as follows:
First Position - S = Single; H = Head of Household; M = Married, Filing Joint Return-One Spouse Working; N = Married, Filing Separate Returns or Joint Return-Both Spouses Working.
Second and Third Positions - Enter the total number of allowances claimed. If less than 10, precede with a zero.

Additional Information:

None



Withholding Formula (Georgia Effective 2018)
  1. Subtract the biweekly Thrift Savings Plan contribution from the gross biweekly wages.

  2. Subtract the nontaxable biweekly Federal Health Benefits Plan payment 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. Single-S
    or
    Head of Household
    -H

    Married-N
    (Filing Separately or
    Joint Return - Both Spouses Working)

    Married-M
    (Filing Joint Return -
    One Spouse Working)

    $ 2,300
    $ 1,500
    $ 3,000

  7. Determine the personal exemption allowance by applying the following guideline and subtract this amount from the result of step 5.

    Personal Exemption for self and spouse = $3,700 x Number of Personal Exemptions Claimed if married


    Personal Exemption for self = $2,700 x Number of Personal Exemptions Claimed if not married

  8. Determine the dependent exemption allowance by applying the following guideline and subtract this amount from the result of step 6.
  9. Dependent Exemption Allowance = $3,000 x Number of Dependents

  10. Apply taxable income computed in step 7to the following table to determine the annual Georgia tax withholding.

  11. Tax Withholding Table
    Single

    If the Amount of
    Taxable Income Is:

    The Amount of Georgia
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $       0
    $      750
    $    0.00
    plus
    1%
    $      0
         750
         2,250
          7.50
    plus
    2%
         750
      2,250
         3,750
        37.50
    plus
    3%
      2,250
      3,750
         5,250
        82.50
    plus
    4%
      3,750
      5,250
         7,000
      142.50
    plus
    5%
      5,250
      7,000
     and over
      230.00
    plus
    6%
      7,000


    Married
    (Filing Separately or Filing a Joint Return - Both Spouses Working)

    If the Amount of
    Taxable Income Is:

    The Amount of Georgia
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $       0
    $       500
    $   0.00
    plus
    1%
    $      0
         500
          1,500
         5.00
    plus
    2%
        500
      1,500
          2,500
       25.00
    plus
    3%
      1,500
      2,500
          3,500
       55.00
    plus
    4%
      2,500
      3,500
          5,000
       95.00
    plus
    5%
      3,500
      5,000
      and over
      170.00
    plus
    6%
      5,000


    Married
    (Filing a Joint Return - One Spouse Working)
    or
    Head of Household

    If the Amount of
    Taxable Income Is:

    The Amount of Georgia
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $        0
    $    1,000
    $    0.00
    plus
    1%
    $       0
        1,000
          3,000
        10.00
    plus
    2%
       1,000
        3,000
          5,000
        50.00
    plus
    3%
       3,000
        5,000
          7,000
      110.00
    plus
    4%
       5,000
        7,000
        10,000
      190.00
    plus
    5%
       7,000
      10,000
      and over
      340.00
    plus
    6%
      10,000

  12. Divide the annual Georgia tax withholding by 26 to obtain the biweekly Georgia tax withholding.

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