Idaho State Tax Commission

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Withholding Guide Updated May 31

The Guide to Income Tax Withholding was updated and published to our website May 31, 2018.

Key changes include:

  • Changes to the calculation in the Percentage Computation Method (page 20); the employer's requirement to "add 2" was eliminated
  • Revisions to the single tables using the Wage Bracket Method (beginning on page 26)

The Guide will be updated once more by June 11, 2018. We'll include a worksheet and instructions to employees to calculate their own Idaho withholding allowances for their form W-4.


Posted 05-31-2018
tax pros general

This information is for general guidance only. Tax laws are complex and change regularly. We can't cover every circumstance in our guides. This guidance may not apply to your situation. Please contact us with any questions. We work to provide current and accurate information. But some information could have technical inaccuracies or typographical errors. If there's a conflict between current tax law and this information, current tax law will govern.