Idaho State Tax Commission

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Withholding Guide updated with W-4 Worksheet for Idaho

Employers:  We’ve updated A Guide to Idaho Income Tax Withholding as of June 20 to include the new 2018 W-4 Worksheet for Idaho.  Employees should use the worksheet to estimate their Idaho allowances and any extra state withholding.  The worksheet is also available at recommend that all employees update their W-4s using the worksheet.

No changes have been made to the withholding tables. 



Posted 06-21-2018
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.