Nebraska (NE)
April 15, 2026
October 15, 2026
✓ Automatic w/ Federal
NE — NebraskaNebraska Personal Income Tax Extension — What You Need to Do
If you have a federal extension (Form 4868) and aren’t making a Nebraska tax payment with it, your Nebraska filing deadline is automatically extended to October 15, 2026 — no separate Nebraska form needed. You only need to file Form 4868N if you’re making a tentative tax payment or don’t have a federal extension.
Nebraska Extension Checklist — 2026
Two things to handle. Whether you need Form 4868N depends on whether you’re making a payment or have a federal extension.
April 15, 2026
Pay Any Nebraska Tax Due (File Form 4868N If So)
Check with Form 4868N Nebraska Department of Revenue
PO Box 94818
Lincoln, NE 68509-4818
Must be filed by the original due date to be valid.
October 15, 2026
File Federal + Nebraska Return
File your federal return now and add your Nebraska state return — Form 1040N — in the same session. Filing sooner means a faster refund. Your Nebraska extended deadline is October 15.
Start Federal + Nebraska Return →
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Nebraska Late Filing & Payment Penalties — What It Costs to Wait
Nebraska’s late-payment penalty is a flat one-time charge, separate from the monthly-accruing late-filing penalty.
| Charge Type | Rate | Cap | Trigger |
|---|---|---|---|
| Late Filing Penalty | 5% of unpaid tax per month (or part) | 25% | Return filed late without valid extension coverage |
| Late Payment Penalty | 5% of unpaid tax (one-time, flat) | N/A — flat charge | Tax unpaid after April 15, 2026 |
| Interest | 8% per year (2025–2026) | No cap | Accrues from April 15 on any unpaid balance |
Nebraska State Extension Details
| Extension Type | Automatic with Federal Extension |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Extension Period | 6 months (federal-aligned) |
| Extension Form | Form 4868N — only required if making a tentative payment, or if you don’t have a federal extension |
| Return Form | Form 1040N |
| Federal Extension Required? | Not required, but simplifies the process — a federal extension without a payment automatically covers Nebraska |
| Payment Deadline | April 15, 2026 (extension does not extend time to pay) |
| Online Payment Portal | Nebraska e-pay |
| Extension (Form 4868N) Mailing Address | Nebraska Department of Revenue, PO Box 94818, Lincoln, NE 68509-4818 |
| Return Mailing Address (refund) | Nebraska Department of Revenue, PO Box 98912, Lincoln, NE 68509-8912 |
| Return Mailing Address (balance due) | Nebraska Department of Revenue, PO Box 98934, Lincoln, NE 68509-8934 |
| State Agency | Nebraska Department of Revenue |
| Late Filing Penalty | 5% of unpaid tax per month, up to 25% |
| Late Payment Penalty | 5% of unpaid tax, flat one-time charge |
| Interest Rate (2025–2026) | 8% per year |
Nebraska Tax Extension — Frequently Asked Questions
Do I need to file Form 4868N?
Not if you already have a federal extension and aren’t making a Nebraska tax payment with it. File Form 4868N only if you’re making a tentative payment, or if you don’t have a federal extension at all.
Is Nebraska’s late-payment penalty charged every month?
No. Unlike the late-filing penalty (5% per month, capped at 25%), the late-payment penalty is a flat 5% one-time charge on the unpaid balance.
What if I owe Nebraska tax when I request the extension?
File Form 4868N with your tentative payment by April 15, 2026. The extension covers filing only, not payment — interest accrues from the original due date regardless.
What if I’m due a refund?
If you’re due a refund, no extension form or payment is required. Filing sooner still gets your refund to you faster.
Which Nebraska return form do I need?
Form 1040N is Nebraska’s individual income tax return, used by residents, part-year residents, and nonresidents alike.
Where do I mail my return versus my extension payment?
Extension payments (Form 4868N) go to PO Box 94818. Completed returns go to PO Box 98912 (refund) or PO Box 98934 (balance due) — different addresses, so double-check before mailing.
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File your federal return and add Nebraska state in the same session. October 15 extended deadline — secure, fast, with live support.