Idaho State Tax Commission

Idaho State Tax Commission

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tax.idaho.gov/taphelp

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FAQs on "zero" 910 forms and uploading certain withholding documents are listed below. They'll be added to our withholding guide soon.

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UL02   What format is required to upload an EFW2 file?

Your data file must be in text format that follows the Social Security Administration's Publication #42-007 and includes the state-specific records defined in our W-2 e-file specifications. You can find specifications for the EFW2 file layout on our Software Developers page.

Last updated 11-11-2017

Page last updated July 3, 2018. Last full review of page: July 3, 2018.

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.