IDAHO Tax Forms and Instructions
Below are the relevant links for ID State Tax information.
Idaho State Mandate Tax preparers who have been approved by the IRS are automatically approved to submit Idaho returns electronically. There is no separate approval process for Idaho.



IDAHO Tax Forms and Instructions Information
Online Credit Card Payments
  • Offical Payments
    Or call 1-800-2PAY-TAX (Offical payments charges a nominal fee for this service)(Use Jurisdiction Code 2000 for Individual and Jurisdiction Code 2006 for Business Taxes)
Mailing Addresses
  • Return Mailing Address:
    Idaho State Tax Commission
    PO Box 56
    Boise ID 83756-0056

  • Return Mailing Address without Refund:
    Idaho State Tax Commission
    PO Box 83784
    Boise ID 83707-3784

  • Estimates Mailing Address:
    Idaho State Tax Commission
    PO Box 83784
    Boise ID 83707-3784

  • Amended Return Mailing Address:




  • Extension Mailing Address:
    If you can't file your individual income tax return by the original due date of the return (April 15, in most cases* ), you can have an automatic six-month extension without filing a form. To have a valid extension and avoid paying a penalty, the amount of tax withheld and your other payments must be at least 80% of your current year's tax liability or 100% of the total tax reported on your income tax return for the preceding tax year (if you filed one). Complete the worksheet on Form 51 to see if you meet the extension requirements.

    Internal Revenue Service
    P.O. Box 802503
    Cincinnati, OH 45280-2503

  • Electronic Filing:
    Idaho accepts Resident, Nonresident, and Part-year returns electronically. They can be transmitted with the Federal return or transmitted as a State only return
Federal Tax Information