Idaho State Tax Commission

Tax Update for Winter 2019

Welcome to the Winter 2019 issue of Tax Update—our newsletter for the business community. This edition features articles on the new Idaho W-4, income tax changes, refunds, office moves, new tax guides, and more!

New Idaho W-4 calculates state paycheck withholding

The Tax Commission has launched the first Idaho-specific W-4 form to help taxpayers more easily calculate how much state income tax their employers should withhold from their paychecks.

The goal is getting Idahoans who haven't yet updated their withholding since last year's historic tax reforms to use Form ID W-4 and get their calculation right for 2019.


We've mailed or emailed you a copy of the Idaho W-4. It's also available on the Tax Commission website at We urge you to encourage your employees to update their Idaho and federal W-4s.

We've also updated A Guide to Idaho Income Tax Withholding with the new form, and we've issued a new flyer for you to share with employees. Both are available on our W-4 page at

W-4 help me!

We urge you to follow the steps below to update your paycheck withholding. Save yourself from an unexpected tax bill.

Steps to take NOW:

  1. Use the withholding calculator at to calculate your federal withholding. Update the federal Form W-4 with that information.
  2. Use page 2 of the Form ID W-4 to calculate your Idaho withholding. Fill out Form ID W-4 with that information.
  3. Give both W-4 forms to your employer.

Changes for 2018 income tax returns

You'll see big differences when you file your income tax return this year due to recent changes to tax laws. Here are some highlights:

Individual income tax changes:
  • Standard deductions increased to:
    • $12,000 for single filers
    • $18,000 for head-of-household filers
    • $24,000 for married-filing-jointly filers
      Note: These deductions increase each year based on IRS calculations.
  • Personal and dependent exemptions eliminated.
  • Itemized deductions capped or eliminated.
  • A new, nonrefundable Idaho child tax credit of $205 added for each qualifying child.
  • Income tax rates reduced by 0.475 of a percentage point. The top rate for individuals now is 6.925 percent.
Business income tax changes:
  • Corporate tax rate reduced by 0.475 of a percentage point. The rate for corporations now is 6.925 percent.
  • Internal Revenue Code (IRC) Section 179 expense limit increased to $1 million.
  • Employee transportation and parking reimbursement repealed. Employee commuting and parking expenses are no longer allowed.
  • IRC Section 199A – Most pass-through income reduced by 20 percent on the owner's income tax return.
    Note: Idaho doesn't conform to bonus depreciation.

For more information on the changes, see our Conformity webpage.

Use Quick Pay to pay your income taxes

Thumbs up to QuickPay

Pay your income taxes online without creating an account through our Quick Pay service at

With Quick Pay, you authorize the state to take a certain amount of money from your checking or savings account. The service is free.

Use Quick Pay if you make only a few payments a year. It's a great option if you want to spread out payments for your income taxes between now and the April 15 due date.

Income tax refunds — What to expect

Want to know where your refund is or how long it will take to get it? Here are some refund facts to help you out.

Track Your Income Tax Refund Progress 24/7

Visit to get the most up-to-date information about your income tax refund. The refund status graphic tracks your return's progress through four stages.

Typical Refund Time Frames

The time frames below are general and don't apply to every refund.

  • E-filers: Expect your refund about seven to eight weeks after an acknowledgment that we have your tax return.
  • Paper filers: Expect your refund about 10 to 11 weeks after we receive your return. We must manually enter information from paper returns into our database.
Refund Exceptions:
hand with money
  • First-time filers: It takes about three weeks to enter a first-time filer into the system. Until that time, we'll report your return as "not entered in system." Add those three weeks to the estimates above to determine your refund time frame.
  • If you received a letter from us asking for more information: Your refund will be delayed until we get the requested information. It then will take about six more weeks to finish the process.
Rapid Response = Faster Refund

All income tax returns go through fraud-detection reviews and accuracy checks before we issue any refunds. The Tax Commission might send you letters asking you to:

  • Verify that you filed a return
  • Verify your identity
  • Provide more information

Please respond quickly to our letters so we can review your information and send your refund as soon as possible.

For more refund information, visit

Pocatello, Boise offices to move in 2019

moving van

Two of our offices will be moving this year. The Pocatello office will move in February and close for two days as we transition to our new office space. The Boise office will move in the summer. We won't have any interruption in taxpayer service during this move.

Check for information about when the moves will occur and for the new office addresses. You also can follow us on social media or subscribe to our newsletters to get move updates.

New TAP service for filing reminders

We've launched a reminder service through Taxpayer Access Point (TAP). As a TAP account owner, you can opt to receive emails that remind you to file your tax returns. The reminders cover only those returns you file through TAP.

Employers: Form 967, W-2s due January 31


As an employer, you must file your Form 967 and W-2s with the Tax Commission by January 31. Any 1099 forms are due by the last day of February. If you need to file 1099s, you have these two options:

  1. File Form 967, W-2s, and 1099s by January 31, or
  2. File Form 967 and W-2s by January 31, and file 1099s by February 28. Please follow our online instructions for this option.

The final Form 910 for 2018 also is due in January. Use TAP for the fastest and easiest way to file your withholding forms.

New online tax guides

We've transformed more brochures to tax guides and updated them for easier reading. Check them out!

Sales tax
Income tax

New tax hubs on the website

tax hubs

We've organized links to tax-specific information into one place on our website. These hubs make it easier for you to find the resources you need.

You can find links to the hubs on our website's homepage.

Income tax filing dates

Tax Time!
  • January 28, 2019 – The day we begin processing 2018 Idaho individual income tax returns.
  • April 15, 2019 – The deadline to file your 2018 Idaho individual income tax return. (This also is the federal due date.)

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Published January 24, 2019

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.