Where to Mail Your Idaho State Tax Return and How to Track It
Learn where to mail your Idaho state tax return, how to track its status, and what to include to ensure accurate processing and timely confirmation.
Filing your Idaho state tax return correctly ensures that your documents are processed without delays. If you’re mailing a paper return, knowing the correct address and including all required paperwork helps avoid complications. Tracking your return’s status can also keep you informed about processing times and any potential issues.
Required Documents for Mailing
To avoid delays, include all necessary documents when mailing your Idaho state tax return. The most important is the completed and signed tax form: Form 40 for full-year residents, Form 43 for part-year residents and nonresidents, or another applicable Idaho income tax form based on your filing status.
Supporting documents are also essential. If you’re claiming tax credits, deductions, or income adjustments, attach the required schedules or worksheets. For example, if claiming the Idaho Grocery Credit, ensure that section is completed correctly. If itemizing deductions, include Schedule A from your federal return.
Attach all W-2s, 1099s, and other income statements, especially if Idaho state taxes were withheld. These verify reported income and taxes paid. If you had multiple income sources, include all relevant forms to avoid discrepancies that could delay your refund or trigger an audit.
Correct Mailing Address for Returns
The mailing address for your Idaho tax return depends on whether you’re including a payment.
If you owe taxes and are submitting a check or money order, send your return to:
Idaho State Tax Commission
PO Box 83784
Boise, ID 83707-3784
If no payment is required, mail your return to:
Idaho State Tax Commission
PO Box 56
Boise, ID 83756-0056
Using the correct address prevents delays. If sent to the wrong location, your return must be rerouted internally, which can take longer, especially during peak tax season.
Consider using USPS Certified Mail or another tracking service to confirm delivery. If your return is postmarked by the filing deadline, it will be considered on time, even if it arrives later.
Separate Payments and Attachments
If making a payment with your return, ensure it is correctly applied to your account. Checks or money orders should be made payable to the Idaho State Tax Commission and include your Social Security number or taxpayer identification number to prevent misapplied payments.
If submitting a payment separately—such as an estimated tax payment or a balance due after e-filing—use the appropriate form:
– Form 910 for business income tax payments
– Form 41ES for estimated payments by fiduciaries
For faster processing, consider paying online through the Idaho State Tax Commission’s QuickPay system instead of mailing a check.
Return Submission for Different Residency Status
Idaho’s tax filing requirements depend on residency status, which affects the forms you submit and the income subject to taxation.
– Full-year residents must report all income, regardless of where it was earned.
– Part-year residents and nonresidents are taxed only on income sourced from Idaho.
If you moved into or out of Idaho during the tax year, you must allocate income accordingly. For example, if you lived in Idaho for six months and earned wages both in and out of the state, only income earned while living in Idaho (plus any Idaho-source income earned while living elsewhere) is taxable.
The Idaho State Tax Commission provides guidelines on prorating income and deductions. If needed, use an income allocation worksheet to ensure compliance with Idaho tax laws governing part-year and nonresident individuals.
Confirmation and Tracking
Once you’ve submitted your Idaho tax return, confirming receipt and tracking its progress can help avoid unexpected delays.
The Idaho State Tax Commission’s “Where’s My Refund?” tool allows you to check your refund status online. You’ll need your Social Security number and the exact refund amount listed on your return. E-filed returns with direct deposit are processed faster than paper returns.
If you mailed a payment, verify its processing by checking when your check clears your bank. If you paid electronically through QuickPay, you should receive an email confirmation. If your return is under review, the state may request additional documentation, which could extend processing times.
Handling Address Changes
Keeping your address updated with the Idaho State Tax Commission ensures you receive important correspondence, including refund checks and tax notices.
If you’ve moved since filing your last return, update your address before submitting your current return to avoid delays. You can update your address through:
– The TAP (Taxpayer Access Point) online portal
– Form 850 (Change of Address Request)
– Calling the Idaho State Tax Commission directly
If a refund check is sent to an outdated address, it may be returned to the state, requiring additional steps to request reissuance. If receiving a refund via direct deposit, address changes won’t affect the deposit, but keeping records current is still recommended. If you need to update your address after filing, contact the Tax Commission as soon as possible to prevent issues.