Idaho

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Agency Information

Idaho State Tax CommissionWithholding Tax
Idaho Department of Labor – Unemployment tax

Add to existing company setup

Submit a request to your service team to add ID (withholding) and/or IDSUI (unemployment) to your company setup.  Please include the below with your request:

  • Withholding – Withholding account number and Deposit Frequency.  If you’re unsure of your deposit frequency or account number you can call the agency at 208-334-7660.
  • Unemployment – Account Number and Tax rate.  This can be found on a Tax Rate Notice or the Quarterly contribution report.  If you’re unsure of your tax rate or account number, you can call the agency at 205-332-3570.
  • Power of Attorney- POA is required, please obtain the prefilled form from your client service representative.
  • Third Party Access – TPA Access is required, please obtain the instructions from your service team.

Register a new company

Idaho  State Tax Commission

Register online at https://tax.idaho.gov/i-1159.cfm.  Please follow the prompts.  You will receive your account number and deposit frequency within 10 days.

Idaho Department of Labor

Register online at https://labor.idaho.gov/ibrs/IBR.aspx?strMenu=HOME review the instructions then select the “I am ready to register my new business” icon at the bottom of the page.  Once completed you will receive your account number within 10 days.

Third Party Registration and/or Power of Attorney Instructions

Power of Attorney

Please obtain the prefilled form from your client service representative.

Third Party Access

Please obtain the instructions from your service team.