Comprehensive statutory analysis of Kansas individual income tax rates, Department of Revenue filing forms, extension guidelines, telecommuting sourcing rules, and pass-through entity tax provisions.
Primary Resident FormForm K-40 (Individual Income Tax Return)
Nonresident FormForm K-40 (with Schedule S Part B for Nonresidents)
Convenience of Employer RuleNo
Reciprocity AgreementsNone
Community Property StateCommon Law
State Estate/Inheritance TaxNone (Federal Only)
QSBS IRC § 1202 ConformityState Specific / Under Review
Marginal Rate Ladder: Kansas
Source: Tax Foundation — State Individual Income Tax Rates and Brackets, 2026 (retrieved 2026-08-09). Ranks Kansas against all 51 jurisdictions.
2026 Legislative & Statutory Highlights
Kansas operates a consolidated individual income tax schedule with a top marginal rate of 5.58% and a standard deduction aligned with federal baseline amounts. Kansas completely exempts Social Security benefits from state income taxation.
Kansas operates a graduated personal income tax schedule with marginal brackets reaching up to 5.6%. Tax parameters are indexed annually or enacted through state legislative sessions. Taxpayers should ensure that adjustments for federal bonus depreciation, Section 179 expensing, and Net Operating Loss (NOL) carryforwards follow Kansas's specific rolling or static Internal Revenue Code conformity date.
Filing Forms, Deadlines & Extension Guidelines
Full-Year Resident ReturnForm K-40 (Individual Income Tax Return)
Nonresident / Part-Year ReturnForm K-40 (with Schedule S Part B for Nonresidents)
Statutory Filing Calendar & Extension Provisions:Automatic 6-month extension to October 15 matching federal Form 4868, provided 90% of tax is paid by April 15.
Kansas taxes residents on all income. Nonresidents are taxed on income earned while physically in Kansas. Kansas does not enforce a convenience of the employer rule.
Cross-Border Tax Credits:If you are an Kansas resident earning wages in another state that also levies income tax, Kansas generally permits a resident credit for taxes paid to other jurisdictions (subject to statutory percentage limitations) to avoid unconstitutional double taxation.
Pass-Through Entity (PTE) Tax & Small Business Rules
Kansas allows pass-through entities to elect into the Kansas SALT Parity Act (entity-level tax at 5.58%), allowing small business owners full federal tax deductibility.
Estate & Inheritance Tax
Kansas has no state estate tax and no inheritance tax.
Local & County Taxes
Local counties and cities may levy an intangibles tax on gross earnings from interest, dividends, and certain financial accounts (up to 2.25%), but no local wage tax.
Worked Tax Example: $120,000 W-2 Earner in Kansas
A single resident in Kansas earning $120,000 incurs approximately $5,940 in Kansas state income tax after applying the standard deduction, yielding an effective state rate of 4.95%.
Gross W-2 Wages$120,000
Est. State Tax$5,940
Effective State Rate4.95%
Calculate Your 2026 Kansas Tax Liability
Enter your taxable income, filing status, and municipal details below to calculate your customized state tax liability and print your executive summary.
Structure
graduated
Top rate
5.6%
State tax
$4,092
Eff. rate (state+local)
5.1%
2-bracket system, top marginal 5.58% (Tax Foundation). Exact 2026 bracket thresholds not individually re-verified — confirm against KS DOR.
⚠ Some figures for this state are not yet fully verified — confirm with the state Department of Revenue before relying on them.
Official Executive Tax Dossier · Form 1040 Statutory Mapping
2026 Executive Kansas State Tax Audit Summary
STATUTORY SEAL:FT-2026-IRS-13D4490EIRS Rev. Proc. 2025-32 Verified
Gross Income$80,000
Taxable Income$80,000
Total Combined Tax$4,092
Effective Total Rate5.1%
Statutory Governing Authority: Kansas Department of Revenue Statutory Tax Code · Top Marginal Rate: 5.6% · Tax Foundation 2026 State Tax Rates & Brackets Report
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.
Does Kansas have a state personal income tax in 2026?
Yes. Kansas operates a graduated personal income tax schedule with marginal brackets reaching up to 5.6%. Taxpayers must file an annual return if gross income exceeds statutory filing thresholds.
What is the 2026 individual income tax filing deadline for Kansas?
The regular filing deadline for Kansas individual income tax returns is April 15, 2026. Taxpayers seeking an extension may receive up to 6 additional months to file, but any tentative tax due must be paid by the original deadline to prevent late-payment interest and statutory penalties.
How does Kansas treat remote workers and telecommuters?
Kansas taxes residents on all income. Nonresidents are taxed on income earned while physically in Kansas. Kansas does not enforce a convenience of the employer rule.
Can small business owners in Kansas bypass the federal $10,000 SALT cap?
Kansas allows pass-through entities to elect into the Kansas SALT Parity Act (entity-level tax at 5.58%), allowing small business owners full federal tax deductibility.
Does Kansas impose a separate estate or inheritance tax?
Kansas has no state estate tax and no inheritance tax.
Source-verified — not professional advice
Every figure on this page is checked in-house against its primary source — IRS revenue procedures and publications, state Departments of Revenue, and the text of the underlying statute — before publication. Last reviewed 2026-10-20. The full source list is at the bottom of this page. If you spot an error, see our corrections & standards policy.
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.