Nebraska tax deadlines in 2026: filing dates and estimated payments
Deadlines that fall in calendar 2026: the 2025 return and the 2026 estimated payments. Different year? See Nebraska 2025 →
Nebraska deadlines in 2026
| 2025 individual return due | April 15, 2026 |
|---|---|
| Extended filing deadline | October 15, 2026 |
| Payment due | April 15, 2026, extension or not |
| Final 2025 estimated payment | January 15, 2026 |
| 2026 estimated payments | April 15, 2026 · June 15, 2026 · September 15, 2026 · January 15, 2027 |
Conforms to the federal deadline.
Nebraska estimated tax payments in 2026
Every resident and nonresident must make estimated income tax payments if their Nebraska income tax, after personal exemption credits, is expected to exceed their income tax withholding and other credits by $500 or more.
| Q1 (2026 tax year) | April 15, 2026 |
|---|---|
| Q2 (2026 tax year) | June 15, 2026 |
| Q3 (2026 tax year) | September 15, 2026 |
| Q4 (2026 tax year) | January 15, 2027 |
| Voucher | Form 1040N-ES, Nebraska Individual Estimated Income Tax Payment Vouchers |
| Underpayment safe harbor | Payments including withholding must equal at least 90% (66 2/3% for farming, ranching, and fishing) of the current-year tax after credits, 100% of the prior-year Nebraska tax if federal AGI was $150,000 or less, or 110% of the prior year's tax if prior-year federal AGI exceeded $150,000. |
| Pay online | revenue.nebraska.gov |
Farmers, ranchers and fishermen (two-thirds of gross income) may pay in full by January 15, 2027, or file and pay by March 1, 2027 and skip estimates. Online payments must be confirmed before 5:00 p.m. Central on the due date.
Source: revenue.nebraska.gov, read September 3, 2026. “The estimated tax may be paid in full with the first payment, or in equal installments on or before April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027.”
All 51 jurisdictions in one table: state estimated tax payment dates for 2026.
Nebraska extensions
Every state's rule in one table: which states accept the federal extension in 2026.
| Does Nebraska accept the federal extension? | Yes. A federal extension is honored; no state form. |
|---|---|
| State extension form | Form 4868N |
| Original due date | April 15, 2026 |
| Extended due date | October 15, 2026 |
| Payment | Still due April 15, 2026. The extension is to file, not to pay. An extension does not stop interest from accruing on unpaid tax from the original due date. |
| How to get it | Attach a copy of federal Form 4868 (or a schedule with your federal confirmation number) to Form 1040N when filed; file Form 4868N by April 15 only if you are making a tentative payment or did not request a federal extension. |
The Form 4868N requirement is waived when the return is e-filed through a paid preparer.
Source: revenue.nebraska.gov, read September 3, 2026. “DOR accepts the federal extension of time to file. It is only necessary to file a Nebraska extension of time if you are making a tentative tax payment or when a federal extension is not filed.”
Federal deadlines in 2026
| 2025 Form 1040 | April 15, 2026 · extension October 15, 2026 |
|---|---|
| 2025 S-corp (1120-S) & partnership (1065) | March 16, 2026 |
| 2025 C-corp (Form 1120) | April 15, 2026 |
| 2026 federal estimated payments (1040-ES) | April 15, 2026 · June 15, 2026 · September 15, 2026 · January 15, 2027 |
Source: IRS Publication 509 and Form 1040-ES instructions, irs.gov.
Frequently asked questions
When are Nebraska state taxes due in 2026?
Your 2025 Nebraska individual income tax return is due April 15, 2026. If that date falls on a weekend or legal holiday, the deadline moves to the next business day. An extension moves the filing deadline to October 15, 2026, but any tax owed is still due on the original date.
When are Nebraska estimated tax payments due in 2026?
Nebraska estimated payments for the 2026 tax year are due April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027. Use Form 1040N-ES, Nebraska Individual Estimated Income Tax Payment Vouchers or pay online. The final installment for 2025 was due January 15, 2026.
Does Nebraska accept the federal extension?
Yes. A federal extension is honored; no state form. The state form is Form 4868N. The extended filing deadline is October 15, 2026, and tax is still due by April 15, 2026.
Does a Nebraska extension give me more time to pay?
No. An extension extends the time to file, not to pay. To avoid penalties and interest, pay what you expect to owe by April 15, 2026.
Dates are the statutory deadlines that fall in 2026 and move to the next business day when they land on a weekend or holiday. Each section links to the source it was checked against. Always confirm with the Nebraska tax agency or the IRS before relying on a date. This is general information, not tax advice.