Missouri New Hire Requirements

Hiring a new employee in Missouri involves more than making a job offer. Employers must comply with both federal and Missouri employment laws covering employment eligibility verification, payroll registration, tax withholding, new hire reporting, workers' compensation, employee classification, and workplace notices. Missouri's Department of Labor and Industrial Relations provides a checklist to help new employers understand their responsibilities.

A standardized onboarding process helps employers remain compliant while creating a positive experience for new employees.

This guide outlines the primary new hire requirements Missouri employers should understand.

Verify Employment Eligibility

Every employer must verify that newly hired employees are legally authorized to work in the United States.

Employers should:

  • Complete Form I-9.
  • Review acceptable identity and work authorization documents.
  • Complete Form I-9 within the required federal deadlines.
  • Retain Form I-9 according to federal recordkeeping requirements.

Missouri does not require all private employers to use E-Verify. However, federal contractors and certain employers may be required to participate under federal law. All employers must complete Form I-9 for every employee.

Federal and State Tax Forms

Before processing payroll, employers should collect:

  • Federal Form W-4.
  • Missouri Form MO W-4 (Employee's Withholding Certificate), when applicable.
  • Direct deposit authorization, if offered.
  • Emergency contact information.
  • Company-specific employment forms.

These forms help employers calculate the correct federal and Missouri income tax withholding.

Register as an Employer

Before hiring employees, businesses generally should:

  • Obtain a Federal Employer Identification Number (EIN).
  • Register for Missouri withholding tax.
  • Register for Missouri unemployment insurance.
  • Obtain workers' compensation insurance when required.
  • Establish payroll reporting procedures.

The Missouri Department of Labor and Industrial Relations provides a new employer checklist covering these registration requirements.

Report New Hires

Missouri law requires employers to report all newly hired and rehired employees.

Reports generally include:

  • Employee name.
  • Address.
  • Social Security number.
  • Date of hire.
  • Employer name.
  • Employer address.
  • Federal Employer Identification Number (FEIN).

Reports generally must be submitted within 20 days after the employee's hire date. Employers may submit reports electronically or by other approved methods.

Employee Classification

Before employment begins, employers should properly classify workers as:

  • Employees or independent contractors.
  • Exempt or non-exempt employees.
  • Full-time or part-time employees.

Improper classification can result in wage claims, payroll tax issues, unemployment disputes, and other legal consequences.

Workers' Compensation Insurance

Missouri employers generally must maintain workers' compensation insurance if they have:

  • Five or more employees, or
  • One or more employees if engaged in the construction industry.

Employers should:

  • Obtain required insurance coverage.
  • Report workplace injuries promptly.
  • Maintain required records.
  • Display applicable workplace notices.

Workplace Policies

New employees should receive important workplace information during orientation, including:

  • Employee handbook.
  • Attendance policies.
  • Workplace conduct expectations.
  • Anti-discrimination and anti-harassment policies.
  • Safety procedures.
  • Emergency procedures.
  • Technology and internet use policies.
  • Complaint reporting procedures.

Providing written policies helps establish clear expectations from the employee's first day.

Required Workplace Posters

Most Missouri employers are required to display applicable Missouri and federal labor law posters where employees can easily read them.

New employees should know where workplace posters are located because they explain important rights involving wages, workplace safety, unemployment insurance, workers' compensation, and equal employment opportunity.

Employers should review posting requirements regularly and replace outdated notices whenever new versions are issued.

Employer Best Practices

Missouri employers should:

  • Use a standardized onboarding checklist.
  • Complete Form I-9 on time.
  • Collect all required payroll forms.
  • Report new hires within the required timeframe.
  • Maintain workers' compensation insurance when required.
  • Provide an employee handbook.
  • Display current labor law posters.
  • Maintain organized personnel records.
  • Review hiring procedures annually.

Consistent onboarding procedures help employers remain compliant while creating a successful start for every new employee.

Labor Law Poster Compliance

Most Missouri employers are required to display current Missouri and federal labor law posters where employees can easily read them.

View our professionally updated Missouri State & Federal Labor Law Poster here:

https://www.laborlawhrsigns.com/missouri-state-and-federal-labor-law-poster-mo

Official Government Resources

Missouri Department of Labor and Industrial Relations

https://labor.mo.gov

Missouri New Hire Reporting

https://labor.mo.gov/employers

Missouri Department of Revenue

https://dor.mo.gov

U.S. Citizenship and Immigration Services – Form I-9

https://www.uscis.gov/i-9

Frequently Asked Questions

Do Missouri employers have to report new hires?

Yes. Missouri employers generally must report newly hired and rehired employees within 20 days after the hire date.

Is E-Verify required in Missouri?

Generally, no. Missouri does not require all private employers to use E-Verify, although certain employers, such as some federal contractors, may be required to participate under federal law.

What forms are required for a new employee?

Most employers should complete Form I-9, collect Federal Form W-4, and Missouri Form MO W-4 (when applicable), along with any company-specific onboarding documents.

When is workers' compensation insurance required?

Most Missouri employers with five or more employees, or one or more employees in the construction industry, must maintain workers' compensation insurance.

Are labor law posters required?

Yes. Most Missouri employers must display applicable Missouri and federal labor law posters where employees can easily read them.

Where can I obtain an updated Missouri Labor Law Poster?

You can purchase a professionally updated Missouri State & Federal Labor Law Poster here:

https://www.laborlawhrsigns.com/missouri-state-and-federal-labor-law-poster-m