Kansas Estimated Tax Payments (2026)
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Reviewed byIsaiah McCoy, CPAIsaiah McCoy is a Certified Public Accountant (CPA) in Miami, Florida with over a decade of experience in tax, accounting, and financial analysis. He holds a Bachelor of Science degree in accountancy and a Master of Taxation degree from Arizona State University. Isaiah has also earned a Master of Business Administration with a finance concentration from LSU Shreveport. Isaiah has worked within several industries, including public accounting (serving clients in the natural resources, real estate, and not-for-profit sectors), higher education, and healthcare. In his free time, he enjoys traveling and watching soccer and is fluent in Spanish.If you're self-employed in Kansas, you likely need to make quarterly estimated tax payments to both the IRS and the Kansas Department of Revenue. State payments are generally required in Kansas once you expect to owe $500 or more after withholding. Estimate your federal and Kansas quarterly payments below.
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Full tax breakdown
Income
Deductions
Federal tax
Federal tax paid
State
Do you have to pay estimated taxes in Kansas?
Yes. If you're self-employed in Kansas and expect to owe $500 or more in Kansas income tax for 2026 after withholding, you must make quarterly estimated payments to the Kansas Department of Revenue. That is below the federal $1,000 threshold, so most part-time self-employed people owe them too. Kansas taxes income at graduated rates up to 5.58%.
When are Kansas estimated taxes due in 2026?
Kansas's 2026 quarterly payments are due April 15, June 15, September 15, and January 15, in four equal installments, on the same calendar as your federal payments.
Q1, April 15, 2026
Q2, June 15, 2026
Q3, September 15, 2026
Q4, January 15, 2027
How much should you set aside for Kansas estimated taxes?
Plan to set aside 25% to 30% of your net self-employment profit to cover federal and Kansas taxes combined, then confirm the exact amount with the calculator above. On $50,000 of net self-employment profit, federal self-employment tax alone is about $7,065 (15.3% on 92.35% of your earnings). On top of that you'll owe federal income tax and Kansas income tax at graduated rates up to 5.58%.
How do you avoid a Kansas underpayment penalty?
To avoid a Kansas underpayment penalty, pay the smaller of 90% of your 2026 Kansas tax or 100% of your 2025 tax, in four on-time installments. Paying the full amount late doesn't help; each installment has to be on time. You can estimate a federal underpayment penalty here.
What deductions lower your Kansas estimated taxes?
Because estimated taxes are based on your net profit, every business write-off you claim lowers what you owe each quarter. Common deductions for 1099 workers, reported on Schedule C, include the home-office deduction, car mileage, phone and internet, software, and supplies. Like the IRS, Kansas lets you deduct half of your self-employment tax. The federal Qualified Business Income (QBI) deduction can remove up to 20% of your qualified business income from your federal taxes, but Kansas doesn’t allow it, so it doesn’t lower your Kansas tax.
Keeper's 1099 tax calculator estimates your bill after deductions, and our write-off guides list the deductions for your line of work.
Do self-employed people in Kansas owe local income tax?
No. Kansas cities and counties can’t charge an income tax, so Wichita, Overland Park, and other Kansas communities don’t tax self-employment income. You pay only Kansas state income tax, plus federal income and self-employment tax.
Note: Figures are current for the 2026 tax year and are for planning, not tax advice. Confirm the details with the Kansas Department of Revenue before you file.
How to file quarterly taxes in Kansas
Filing quarterly in Kansas means two separate payments each period: one to the IRS for federal tax, and one to the Kansas Department of Revenue for your state taxes. Here’s how to do it.
- Confirm you need to pay. You owe estimated payments when tax isn’t withheld from enough of your income — 1099 or freelance work, investment income, or other untaxed income. Federal and Kansas run separate tests: the state generally requires estimated payments if you expect to owe $500 or more in Kansas tax after withholding and credits, subject to its safe-harbor rules.
- Calculate your federal estimate. Use the Form 1040-ES worksheet (or tax software). Estimate your full-year income, add your federal income tax and self-employment tax, subtract anything already withheld from a paycheck, and split the rest across the year. The estimate at the top of this page gives you a starting number.
- Calculate your Kansas estimate separately. Work out your Kansas amount on its own using Form K-40ES. Don’t just send part of your federal payment to the state — the Kansas calculation is separate, based on your Kansas income tax, credits, and any Kansas withholding.
- Pay the IRS. Pay through IRS Direct Pay (or EFTPS) and choose the estimated tax / Form 1040-ES option. Select tax year 2026 and save the confirmation number. This money counts only toward your federal taxes.
- Pay Kansas separately. Make a second payment to Kansas Customer Service Center and select the Form K-40ES estimated payment for 2026. Save that confirmation too. This money counts only toward your Kansas taxes.
- Repeat on each deadline. For 2026, federal estimated payments are due April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027. Kansas uses those same four dates.
Steps reflect 2026 rules and are for planning, not tax advice.
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Keeper estimates what you owe each quarter, reminds you before every due date, and files your return with a tax pro reviewing every deduction.
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- Form K-40ES: Individual Estimated Income Tax Voucher · ksrevenue.gov
- Form K-210: Individual Underpayment of Estimated Tax · ksrevenue.gov
This article is for informational purposes only and isn’t tax, legal, or financial advice. Tax rules change and depend on your situation, so talk to a tax professional about yours.
Frequently asked questions
Yes, if you expect to owe $500 or more in Kansas tax for 2026 after subtracting withholding and credits.
April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027.
Kansas uses graduated brackets for 2026, with a top marginal rate of 5.58%. The top rate applies only to income above the highest bracket threshold, not to your whole income.
Pay the lesser of 90% of your 2026 Kansas tax or 100% of your prior-year tax, in timely installments.
No. Kansas cities and counties can’t charge an income tax, so Wichita, Overland Park, and other Kansas communities don’t tax self-employment income. You pay only Kansas state income tax, plus federal income and self-employment tax.
Quarterly taxes by state
Hover a state to see its top income tax rate and how its quarterly payments work.