File Kansas Payroll
Taxes in Minutes

Stay compliant with new-hire reporting, withholding, and
unemployment insurance taxes.

Form K-CNS 436

Form K-CNS 436

Deadline: Within 20 days of hire

New Hire
Form KW-5

Form KW-5

Deadlines: Varies by filing frequency

Withholding
Form K-CNS 100

Form K-CNS 100

Apr 30, Jul 31, Oct 31, Jan 31

UI

Kansas Filing Requirements for New Hire, Withholding, and Unemployment

Stay compliant with Kansas's new hire, withholding, and unemployment filing requirements — on time, every time.

Forms Filing Requirements Filing Methods Due Date
New Hire Report
(Form K-CNS 436)
All Kansas employers must report newly hired, rehired, or recalled employees (including those separated for 60+ consecutive days). This includes private businesses, nonprofits, and government entities.
  • Online: Report through the Kansas New Hire Directory.
  • Fax: (888) 219-7798
  • Mail: P.O. Box 3510, Topeka, KS 66601-3510.
Within 20 business days of the employee's hire or rehire date.
Withholding
(Form KW-5)
All employers who withhold Kansas state income tax must file Form KW-5 for each reporting period, even if no tax was withheld.
  • Online: File via the Kansas Department of Revenue Customer Service Center (KCSC) (mandatory for businesses with 51 or more employees).
  • Mail (Smaller filers): Kansas Department of Revenue, PO Box 3506, Topeka, KS 66625-3506.
Due dates depend on your assigned filing frequency:
  • Monthly — 15th of the following month
  • Quarterly — 25th of the month following the quarter
  • Annual — 25th of the month following the period
  • Semi-Monthly — 10th and 25th of the following month
Unemployment Insurance
(Form K-CNS 100)
All Kansas employers with one or more employees must file quarterly to report wages and remit unemployment insurance tax. Employers with 50+ employees or third-party administrators with 50+ client employees must file electronically.
  • Online (Recommended): Employers can securely file wage details and make tax payments online through the Kansas Employer Portal.
  • Fax: 785-291-3425
  • Mail (25 or fewer employees): Kansas Department of Labor, P.O. Box 400, Topeka, KS 66601-0400.
  • Q1: April 30
  • Q2: July 31
  • Q3: October 31
  • Q4: January 31

File Kansas Payroll Forms with Confidence

Simplify Kansas state compliance, and avoid missed deadlines with TaxBandits—your complete
solution for state and federal filings.


Kansas Annual Withholding Reconciliation Form KW-3

Understand Kansas's additional filing requirements and stay compliant.

Filing Requirement Used to reconcile total Kansas income tax withheld during the year with payments submitted via Form KW-5. Reconciles with Forms W-2 issued to employees.
Due Date January 31st of the following year.
What to Include Summary of total wages, total tax withheld, and total payments made. Must accompany employee Forms W-2.
Filing Method Electronic filing via Kansas Department of Revenue is strongly recommended. When e-filing W-2s electronically, a separate paper Form KW-3 is generally not required.
Kansas Annual Reconciliation Form KW-3

Simplify your KW-3 filing with TaxBandits


Information Required to File

Know what information you need to file Kansas payroll forms accurately.

What to Report in New Hire?

What to Report in New Hire (Form K-CNS 436)?

  • Employee's legal full name
  • Employee's physical address
  • Social Security Number (SSN)
  • Date services first performed
  • FEIN, employer name & address
  • State of hire (for multi-state employers)
What to Report in Form KW-5

What to Report in Form KW-5?

  • Business name and address
  • FEIN and Kansas withholding account number
  • Total wages paid during the period
  • Amount of Kansas income tax withheld from wages
What to Report in Form K-CNS 100

What to Report in Form K-CNS 100?

  • Employee name, SSN, and gross wages paid during quarter
  • Taxable wages
  • Monthly employment counts (full-time and part-time workers)
  • Business name and Kansas unemployment account number
  • FEIN
  • Unemployment tax rate and contribution amounts

How to file Payroll Tax Forms with the State of Kansas?

Create a free TaxBandits account and follow these simple steps to e-file your Kansas forms efficiently.

  • Step 1: Choose the Required Form

    Select the type of form you want to file. This includes new hire reporting (K-CNS 436), withholding forms (KW-5 and KW-3), and quarterly unemployment insurance report (K-CNS 100).

  • Step 2: Enter the Required Tax Details

    Complete the chosen form with the required information that applies to your business, such as employee wages, withholding amounts, and contribution data.

  • Step 3: Review and Transmit

    Review your form and transmit it to the appropriate state agencies through TaxBandits for a secure and approved filing.

  • Step 1: Choose the Required Form

    Select the type of form you want to file. This includes new hire reporting (K-CNS 436), withholding forms (KW-5 and KW-3), and quarterly unemployment insurance report (K-CNS 100).

  • Step 2: Enter the Required Tax Details

    Complete the chosen form with the required information that applies to your business, such as employee wages, withholding amounts, and contribution data.

  • Step 3: Review and Transmit

    Review your form and transmit it to the appropriate state agencies through TaxBandits for a secure and approved filing.

Start e-filing with Kansas today—TaxBandits makes it quick and easy!


Kansas Payroll Tax Filing — Simple, Transparent Pricing

Pay for more than filing—accuracy, right outcome, and peace of mind.

No of Forms First Form Next 3 Forms 5-25 Forms 26-50 Forms 51-100 Forms 101-500 Forms 501-1000 Forms
New Hire Reporting
(Form K-CNS 436)
$1 / Employee
Withholding Tax Deposit Report
(Form KW-5)
$5.95 $5.25 $4.75 $4.25 $3.75 $3.25 $3.00

Quarterly Wage Report and Unemployment Tax Return

(Form K-CNS 100)

$5.95 $5.25 $4.75 $4.25 $3.75 $3.25 $3.00

For high-volume filing, call us at (704) 684-4758 for customized pricing.

Request a Live Demo

Penalties and Corrections for New Hire, Withholding, and Unemployment

Know the penalties and how to correct errors before they impact compliance.

Form Penalties Corrections
New Hire Report
  • Kansas does not impose a specific penalty for failure to report new hires. However, employers are required to report within 20 days. Failure to comply may result in enforcement actions by the Kansas Department of Labor.
To correct or update a previously submitted new hire report, employers must contact the Kansas New Hire Directory directly. Corrections generally cannot be made through the standard online portal once processed.
  • Phone: Call (888) 219-7801 or (785) 296-7700
  • Email: Send request to KDOL.NewHires@ks.gov. Include Employer FEIN, incorrect employee information, and the correct details.
Form KW-5 (Withholding)

Late Payment Penalties:

  • 2% if remitted 1–5 days after due date
  • 5% if remitted after 15 days AND 10+ days have passed since Department issued written notice of underpayment
  • Additional 1% per month (maximum 24%) on unpaid balance
  • Interest: 8% per annum (0.67% per month)
If an error is found (e.g., underreported wages or incorrect withholding amounts), file an amended KW-5 by paper form. Mark an X in the box marked "Amended Return" and report the corrected amount on line 1. Include a letter explaining the error. Any additional tax due must be paid along with applicable penalties and interest.

Contact the Kansas Department of Revenue at 785-368-8222 for assistance.

Form K-CNS 100
(Unemployment Insurance and wage report)
  • Late filing penalty: 0.05% of Total Wages for each month the report is late (parts of a month are rounded up to whole months).
  • Minimum penalty: $25
  • Maximum penalty: $200 per report/quarter
  • A delinquent report showing No Wages will still be assessed the minimum penalty of $25.
  • Interest on past due taxes: 1% per month (parts of a month rounded up).
Amendments must be submitted using Form K-CNS 111 (Adjustment to Quarterly Wage Report) with a letter of explanation. Mail to Kansas Department of Labor, P.O. Box 400, Topeka, KS 66601-0400.

Note: Employers with 50+ employees may file amendments electronically — call (785) 296-5000 for assistance.

Beyond State Payroll Filing: Simplifying All Your Tax Needs

At TaxBandits, we simplify more than just state payroll filings. From Form 941 to 1099, W-2, and beyond, we make tax filing easier for businesses of all sizes. Our platform streamlines federal and state compliance, saving you time and reducing errors, so you can focus on growing your business.

Let TaxBandits Make Your Kansas Payroll Filing Easy

We offer a comprehensive solution to meet all your state payroll compliance needs.

  • New Hire Reporting
  • Form KW-5
  • Form K-CNS 100

Frequently Asked Questions

Register at ksnewhire.ks.gov using your FEIN and a valid email address. Log in and submit new hire information electronically. You can also call (888) 219-7798 or fax (888) 219-7798 or mail to P.O. Box 3510, Topeka, KS 66601-0400.

Kansas employers must report new hires within 20 business days of hire, rehire, or recall date. Electronic filers must submit two monthly transmissions no more than 16 days apart. This applies to full-time, part-time, and temporary employees.

Employers who fail to report on time may face federal penalties up to $25 per employee, with maximum penalties reaching $500 per month per employer.

Form KW-5 is due on the last day of the month following each quarter end. Quarter 1 is due April 30, Quarter 2 is due July 31, Quarter 3 is due October 31, and Quarter 4 is due January 31.

Electronic filing is recommended for all employers. Certain filers may be required to file electronically. File through the Kansas Department of Revenue Customer Service Center at ksrevenue.gov. Smaller filers may submit paper returns by mail.

Kansas assesses interest at 8% per annum (0.67% per month). Penalties escalate: 2% if 1–5 days late, 5% if 6–15 days late, 10% after 15 days, and 15% if unpaid 10+ days after formal notice.

Form K-CNS 100 is due quarterly: Quarter 1 is due April 30, Quarter 2 is due July 31, Quarter 3 is due October 31, and Quarter 4 is due January 31.

Yes. Kansas employers must file Form K-CNS 100 every quarter, even if no wages were paid. Failure to file may result in a minimum $25 penalty.

Kansas assesses a minimum $25 penalty for failure to file. Interest accrues on any unpaid balance. Late filing triggers additional penalties even when the tax amount is small.

Form KW-3 is due January 31st of the following year. It reconciles total Kansas income tax withheld during the year with payments submitted via Form KW-5.

If an error is found on your Form KW-5, file an amended return through the Kansas Department of Revenue (preferred) or by paper. Include a clear explanation of the error and pay any additional tax due along with applicable penalties and interest. Contact the Kansas Department of Revenue at (785) 296-3081 for assistance.

Amendments must be submitted using Form K-CNS 111 with a letter of explanation. Mail to Kansas Department of Labor, P.O. Box 400, Topeka, KS 66601-0400. Large employers (50+ employees) may file amendments electronically—call (785) 296-5000 for assistance.

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