Nebraska State Tax Guide
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Nebraska State Tax Guide
Nebraska Key deadlines (tax year 2025, return filed in 2026)
- Filing deadline: Apr 15, 2026
- Extension request deadline: Apr 15, 2026
- Extended return deadline: Oct 15, 2026 (6-month extension)
- Payment deadline: Apr 15, 2026
- Differs from federal: No
To avoid underpayment penalties, you must pay at least 90% of your total Nebraska tax liability by the April 15 deadline.
If the due date for filing your return falls on a. Saturday, Sunday, or legal holiday, your return is due by the next regular working day.
October 15, 2026 (6-month extension)
Payment rules
To avoid underpayment penalties, you must pay at least 90% of your total Nebraska tax liability by the April 15 deadline.
Payment options
Filing forms
Extension
- Form 4868N - Nebraska Application for Automatic Extension of Time · Download form
Nebraska Refund Tracking
Do I need to file?
If you have an approved Federal tax extension you do not need to file separately. If you file your federal return on time but require extra time specifically for your Nebraska state return, you must explicitly apply for it by completing and submit Form 4868N on or before April 15.
Filing methods
Online filing
You can make a direct payment online without needing to mail physical documents. • ACH Debit: Use the Nebraska electronic payment options to authorize a free direct transfer from your bank account.
Mail filing
If you prefer to pay by check or money order, you must use a paper extension form as your payment voucher. • Complete Form 4868N
