Kansas business filing due dates

The Kansas deadlines Ordexly tracks for Oct 2026 to Oct 2027. Every date links to the agency page it was checked against (last checked ). Which ones apply to a business depends on its registrations and filing frequency, so confirm with the agency.

Annual reports & franchise tax

DueDeadlineSource
Kansas Information Report (biennial — due if formation-year parity matches) 2027official source

Sales & use tax

DueDeadlineSource
Kansas ST-36 retailers' sales tax return (monthly) Sep 2026
Moved from Sun, Oct 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (quarterly) Q3 2026
Moved from Sun, Oct 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (monthly) Oct 2026official source
Kansas ST-36 retailers' sales tax return (monthly) Nov 2026official source
Kansas ST-36 retailers' sales tax return (monthly) Dec 2026official source
Kansas ST-36 retailers' sales tax return (quarterly) Q4 2026official source
Kansas ST-36 retailers' sales tax return (monthly) Jan 2027official source
Kansas ST-36 retailers' sales tax return (monthly) Feb 2027official source
Kansas ST-36 retailers' sales tax return (monthly) Mar 2027
Moved from Sun, Apr 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (quarterly) Q1 2027
Moved from Sun, Apr 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (monthly) Apr 2027official source
Kansas ST-36 retailers' sales tax return (monthly) May 2027official source
Kansas ST-36 retailers' sales tax return (monthly) Jun 2027
Moved from Sun, Jul 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (quarterly) Q2 2027
Moved from Sun, Jul 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (monthly) Jul 2027official source
Kansas ST-36 retailers' sales tax return (monthly) Aug 2027
Moved from Sat, Sep 25 (weekend).
official source
Kansas ST-36 retailers' sales tax return (monthly) Sep 2027official source
Kansas ST-36 retailers' sales tax return (quarterly) Q3 2027official source

Payroll & withholding

DueDeadlineSource
Kansas KW-5 withholding deposit report (quarterly) Q3 2026
Moved from Sun, Oct 25 (weekend).
official source
Kansas KW-5 withholding deposit report (quarterly) Q4 2026official source
Kansas KW-5 withholding deposit report (quarterly) Q1 2027
Moved from Sun, Apr 25 (weekend).
official source
Kansas KW-5 withholding deposit report (quarterly) Q2 2027
Moved from Sun, Jul 25 (weekend).
official source
Kansas KW-5 withholding deposit report (quarterly) Q3 2027official source

Unemployment / reemployment

DueDeadlineSource
Kansas K-CNS 100 quarterly wage and contribution report (quarterly) Q3 2026official source
Kansas K-CNS 100 quarterly wage and contribution report (quarterly) Q4 2026official source
Kansas K-CNS 100 quarterly wage and contribution report (quarterly) Q1 2027official source
Kansas K-CNS 100 quarterly wage and contribution report (quarterly) Q2 2027official source

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Nearby: Colorado due dates · Missouri due dates · Nebraska due dates · Oklahoma due dates

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Federal due dates · All states · Kansas coverage details