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How to Calculate 2017 Louisiana 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 2017 Louisiana 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 Louisiana small businesses here.
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Louisiana State Tax Tables



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2018 Louisiana State Tax Witholding Table
2017 Louisiana State Tax Witholding Table
2016 Louisiana State Tax Witholding Table
2015 Louisiana State Tax Witholding Table
2014 Louisiana State Tax Witholding Table
2013 Louisiana State Tax Witholding Table
2012 Louisiana State Tax Witholding Table
2011 Louisiana State Tax Witholding Table
2010 Louisiana State Tax Witholding Table


IRS released the new 2018 tax tables on Jan 11, 2018. Employers should implement the 2018 withholding tables as soon as possible, but not later than February 15, 2018.

Current ezPaycheck software clients and ezAccounting software clients can download the latest version for free to update 2018 tax tables.

Tax rate used in calculating Louisiana state tax for year 2017

State Abbreviation:

LA

State Tax Withholding State Code:

22

Acceptable Exemption Form:

L-4

Basis For Withholding:

State Exemptions

Acceptable Exemption Data:

S, M, 0 / Number of Dependents

TSP Deferred:

Yes

Special Coding:

None

Additional Information:

None





Withholding Formula >(Louisiana Effective 2017)<
  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. Add taxable fringe benefits (taxable life insurance, etc.) to the adjusted gross biweekly wages.

  4. Multiply the adjusted gross biweekly wages by 26 to determine the annualized gross pay.

  5. Apply the annualized gross pay computed in step 4 to the following table to determine the annual gross tax amount.

  6. Tax Withholding Table
    Single
    (Personal Exemption Code S and 0 (zero))

    If the Amount of
    Taxable Income Is:

    The Amount of Louisiana
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $         0
    $ 12,500
    $        0
    plus
    2.10%
    $        0
       12,500
     >50,000<
      262.50
    plus
    >3.70%<
      12,500
      >50,000
     and over
     1,650.00
    plus
    5.05%
      50,000<


    Tax Withholding Table
    Married
    (Personal Exemption Code M)

    If the Amount of
    Taxable Income Is:

    The Amount of Louisiana
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $         0
    $ 25,000
    $         0
    plus
    2.10%
    $        0
       25,000
    >100,000<
         525.00
    plus
    >3.75%<
      25,000
    >100,000
     and over
      3,337.50
    plus
    5.10%
      100,000<

  7. Determine the annual exemption amount by applying the following guidelines:

  8. If the Employee Is
    Claiming Status As:

    Then the Annual Exemption
    Allowance Should Be:

    Zero - Personal Exemption Code 0 (zero)
    $       0
    Single - Personal Exemption Code S
    $ 4,500
    Married - Personal Exemption Code M
    $ 9,000

    If the employee claims any dependent exemptions, multiply each by $1,000 and add this to the annual exemption amount computed above.

    Note: The personal exemption code is based on the marital status in the first position of the exemption code recorded on the Information/Research Inquiry System (IRIS), Program IR105, State Tax, and the dependent exemptions are the last two positions of the exemption code on IRIS Program 105. For example, if the employee has an exemption code of M02, they would receive an annual exemption amount of $11,000 which is $9,000 for Married and $2,000 for the 2 dependent exemptions.

  9. Apply the annual exemption amount computed in step 6 to the following table to determine the annual tax credit.

  10. Annual Tax Credit
    Single
    (Personal Exemption Code S and 0 (zero))

    Annual Exemption

    The Amount of Louisiana
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $        0
    $  12,500
    $        0
    plus
    2.10%
    $        0
      12,500
      and over
      262.50
    plus
    >3.70%<
      12,500


    Annual Tax Credit
    Married
    (Personal Exemption Code M)

    Annual Exemption

    The Amount of Louisiana
    Tax Withholding Should Be:


    Over:

    But Not
    Over:

    Of Excess
    Over:

    $        0
    $ 25,000
    $        0
    plus
    2.10%
    $        0
      25,000
    and over
      525.00
    plus
    >3.45%<
      25,000

  11. Subtract the annual tax credit computed in step 7 from the annualized gross tax amount computed in step 5 to determine the annual Louisiana tax withholding amount.

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

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