How to File Nebraska State Taxes as a Nonresident

To file Nebraska state taxes as a nonresident, submit Form 1040N together with Schedule III. Schedule III is the piece that makes the return a nonresident return: it computes tax as if you were a full-year Nebraska resident on your total income, then multiplies that tax by the share of your income that came from Nebraska sources. You owe this return any year you have Nebraska-source income and are also required to file a federal return.¹

Do You Have to File

The trigger is simple. If you earned any income from Nebraska sources and you have to file a federal return, Nebraska expects a return too.¹ There is no minimum dollar threshold that lets you skip. A single paycheck from a short assignment in Omaha or winnings from a Nebraska casino can put you on the hook.

Nebraska mirrors the federal gross income filing thresholds. If you are not required to file federally, you are generally not required to file in Nebraska.

The Military Spouse Exemption

One exception matters for military families. Under the Military Spouses Residency Relief Act and the Veterans Benefits and Transition Act, a nonresident military spouse can be exempt from Nebraska income tax on wages earned in the state when all three of the following apply:

The servicemember is stationed in Nebraska solely because of military orders.
The spouse is in Nebraska solely to be with the servicemember.
The spouse is a legal resident of the same state as the servicemember, or has elected to use the servicemember’s state of residency for tax purposes.

All three conditions must hold at the same time. A qualifying spouse should file Nebraska Form 9N with their employer each calendar year so Nebraska tax is not withheld from their pay. If the servicemember transfers away and the spouse stays in Nebraska, the exemption ends and wages become taxable.²

What Counts as Nebraska-Source Income

Nebraska taxes nonresidents on income “derived from or connected with” sources in the state. The main categories:

Wages, tips, commissions, and severance for work physically performed in Nebraska.
Rental income from Nebraska property, gains from selling Nebraska real estate, and royalties on property in the state.
Profits from a trade, business, profession, farm, or ranch operating in Nebraska.
Your share of partnership, S corporation, LLC, estate, or trust income originating from Nebraska operations.
Prizes from games conducted under the Nebraska State Lottery Act.

Income from intangible property (dividends, interest, investment gains) is taxable to nonresidents only when that property is used in a Nebraska business. Owning stock in a Nebraska-based company does not make the dividends Nebraska-source income.³

Military pay is excluded. Compensation from the United States for armed forces service performed by a nonresident is not Nebraska-source income, even if the servicemember is stationed in Nebraska.³

Nebraska’s 2026 Rates

For tax year 2026, Nebraska uses three individual income tax brackets, having eliminated its old top bracket:

Bracket one: 2.46%
Bracket two: 3.51%
Bracket three: 4.55%

The dollar thresholds for each bracket are adjusted each year for inflation using the Consumer Price Index, and the Tax Commissioner publishes the updated tables with the Form 1040N instructions.⁴ As a nonresident, these rates apply to your total income only for the purpose of computing a full-resident tax. Schedule III then scales that number down.

Filling Out Form 1040N and Schedule III

You need Form 1040N (the Nebraska Individual Income Tax Return) and Schedule III (the allocation form for nonresidents and partial-year residents). Both are on the Department of Revenue’s website.⁵

Start on Form 1040N

Enter your personal information and filing status, matching your federal return. Transfer your federal adjusted gross income and your federal deduction (standard or itemized). Nebraska uses those federal numbers as the starting point. Mismatches between the federal and state returns are one of the fastest ways to get flagged for review, so check them.

Then Work Schedule III

Schedule III is where the nonresident calculation happens. List each type of Nebraska-source income (wages, business income, rents, and so on) and total it on Line 1.⁶

Line 4 sets up the ratio that drives everything else: Nebraska adjusted gross income divided by total federal adjusted gross income. Compute it to six decimal places and round to five. If you earned $20,000 in Nebraska against $100,000 total, your ratio is 0.20000.¹ The ratio cannot exceed 100%, even when both figures are negative.

Now compute the tax you would owe as a full-year Nebraska resident on your total income. Subtract Nebraska’s personal exemption credit ($171 per exemption on the most recent forms). Multiply the result by your Line 4 ratio. That product is your Nebraska tax.⁶

The mechanic preserves Nebraska’s progressive rate structure while limiting the actual tax to your Nebraska share. Someone with $200,000 in total income and $20,000 from Nebraska pays at a rate that reflects the $200,000, applied to the $20,000, rather than the low rate $20,000 alone would generate.

Transfer the tax figure back to Form 1040N. Record any Nebraska tax withheld by a Nebraska employer. The difference is your balance due or refund.

Quarterly Estimated Payments

If your Nebraska tax after personal exemption credits is expected to exceed your withholding and other credits by $500 or more, you must make quarterly estimated payments. The rule applies to nonresidents the same as residents.⁷

This most often catches nonresidents with Nebraska rental property, business income, or pass-through income that no one is withholding Nebraska tax on. The 2026 deadlines:

First quarter: April 15, 2026
Second quarter: June 15, 2026
Third quarter: September 15, 2026
Fourth quarter: January 15, 2027

Pay the full estimate with your first voucher or split it into four equal installments. If a deadline lands on a weekend or holiday, it shifts to the next business day. Use Form 1040N-ES.⁷ Missing required estimated payments triggers an underpayment penalty on the shortfall.

How to Submit the Return

The filing deadline for 2025 tax year returns is April 15, 2026, the same as the federal date.

Nebraska’s free NebFile system is limited to full-year residents, so nonresidents cannot use it.⁸ Your options are commercial tax software that supports Nebraska nonresident returns or a preparer who can e-file for you. Electronic filing gets you faster confirmation and quicker refunds.

If you file on paper, use the correct P.O. box:

Returns with payment: Nebraska Department of Revenue, PO Box 98934, Lincoln, NE 68509-8934
Refund or zero-balance returns: Nebraska Department of Revenue, PO Box 98912, Lincoln, NE 68509-8912

Keep proof of the mailing date. A timely postmark protects you from a late-filing penalty even if the return takes days to arrive.⁹

Extensions

Nebraska honors a federal extension automatically. If you already filed a federal six-month extension, you do not need a separate Nebraska form. If you need Nebraska-only extra time, file Form 4868N by the original due date. An extension gives you more time to file, not more time to pay. Any tax you expect to owe is still due April 15, and interest runs on unpaid balances from that date.

Avoiding Double Tax With Your Home State

If your home state has an income tax, the same Nebraska earnings can look taxable in two places. The fix comes from your home state’s return, not Nebraska’s. Nebraska does not give nonresidents a credit for taxes paid elsewhere. Most home states, though, let residents claim a credit for income tax paid to another state.

Sequence matters. File the Nebraska nonresident return first so you know exactly what Nebraska charged you. Then, on your home state resident return, claim the credit for Nebraska tax paid. The credit is generally capped at what your home state would have charged on the same income, so you end up paying the higher of the two rates on your Nebraska earnings, not both stacked.

Check your home state’s specific rules. States with no income tax offer nothing to offset, so the Nebraska tax is your only state-level bill on that income. Some states apply the credit automatically when you attach the nonresident return, while others require a separate schedule.

Late Filing: Penalties and Interest

Missing the deadline without an extension triggers a failure-to-file penalty of 5% of the unpaid tax for each month or partial month the return is late, capped at 25%.¹⁰ The penalty is calculated on the tax due after any credits and payments already made before the original deadline.

Interest runs on unpaid tax on top of the penalty. For the period from January 1, 2025, through December 31, 2026, the delinquent tax interest rate is 8% per year, simple interest.¹¹ A late return with a balance due gets expensive fast. If you can’t pay in full, file on time and arrange payment; the failure-to-file penalty is far larger than the failure-to-pay cost alone.

Tracking a Refund

Nebraska’s refund status tool is at ndr-refundstatus.ne.gov. You’ll need your Social Security number, filing status, and expected refund amount. The tool only handles the current-year original return, not amended or prior-year refunds.¹²

E-filed returns with no errors take at least 30 days to process. Paper returns take at least three months. Returns filed by April 15 generally see refunds by July 15. Errors, missing information, or identity verification can extend those timelines.¹²

1
Nebraska Legislature. Nebraska Code 77-2715 – Income Tax; Rate; Credits; Refund
2
Nebraska Department of Revenue. FAQs for Military Spouses and Their Employers
3
Nebraska Legislature. Nebraska Code 77-2733 – Nonresident Individual; Income Derived From Sources Within This State
4
Nebraska Legislature. Nebraska Code 77-2715.03 – Individual Income Tax Brackets and Rates
5
Nebraska Department of Revenue. 2025 Income Tax Forms
6
Nebraska Department of Revenue. Individual Income Tax and Amended Return Booklet
7
Nebraska Department of Revenue. Nebraska Individual Estimated Income Tax Payment Vouchers
8
Nebraska Department of Revenue. NebFile for Individuals
9
Nebraska Department of Revenue. Contact Us
10
Legal Information Institute. 316 Nebraska Administrative Code Ch. 24 265 – Penalties
11
Nebraska Department of Revenue. Interest Rate Assessed on State Taxes
12
Nebraska Department of Revenue. Income Tax Refund Status