Employer of record in Missouri: PEO rules, payroll registration and what the client still owns (2026)

As of November 2026, Missouri regulates employer of record arrangements through its Professional Employer Organization Act, RSMo 285.700 to 285.750: anyone providing professional employer services must register with the Secretary of State, whatever it calls itself, at $500 for a full registration. For unemployment tax the PEO is liable on the wages it pays, but under RSMo 288.032 the client is jointly and severally liable unless the PEO posts a bond or other security of at least $100,000. The client keeps the right to direct the work and every employer duty the agreement does not give the PEO, including making sure any city earnings tax, such as St. Louis's, is withheld.

This page is for a company outside Missouri, or a staffing firm, deciding whether to employ a Missouri worker through an employer of record (EOR) or PEO, or to register itself. The difference between an EOR, a PEO and payrolling is in what is an employer of record and payrolling services explained. The 1999 repeal of employment agency licensing and the health care staffing registration are in staffing agency license in Missouri, and the full state checklist is in hiring employees in Missouri. This page adds who reports the wages, who insures the worker and what stays with you.

Missouri employer of record and PEO rules at a glance

Does Missouri license employer of record companies or PEOs?

It registers PEOs, and labels do not change that. RSMo 285.705(8) says a person providing professional employer services "shall be subject to registration and regulation under sections 285.700 to 285.750 regardless of its use of the term or conducting business as a professional employer organization, staff leasing company, registered staff leasing company, employee leasing company, administrative employer, or any other name." The relationship must be "intended to be an ongoing relationship rather than a temporary or project-specific relationship," and a covered employee is one who has received written notice of co-employment. Under RSMo 285.715:

• Before operating. A PEO new to Missouri completes its registration "prior to initiating operations." If a PEO learns that an existing client based elsewhere has employees and operations in Missouri, it must decline to serve them or notify the Secretary of State within five business days and file a limited registration, or a full one above 50 covered employees. The Secretary of State may issue an interim operating permit meanwhile.
• What the application holds. Every business name used in the past five years, owners of 25% or more, the senior executive, and an audited GAAP financial statement no older than 13 months without a going concern qualification. A newer PEO with under 12 months of history files CPA-reviewed statements.
• Renewal. Within 180 days after the end of each fiscal year, with a new audit; the existing registration stays in effect while renewal is pending.
• Fees. The Secretary of State's PEO page lists $500 for a full application, $250 for a limited one, and $500 plus $250 per entity for a group. Rule 15 CSR 30-130.030 sets full and limited renewals at $250.

To check a provider, search the Secretary of State's list of registered professional employer organizations, which shows each PEO's registration type. The PEO page also warns that registering as a PEO does not excuse an out-of-state entity from registering with the Business Services Division to operate in Missouri.

What if the provider calls itself an employer of record but is not a registered PEO?

Ask which exclusion in RSMo 285.705(8) it claims: temporary help services, an independent contractor that controls the work and is responsible for the product, or employee sharing between commonly owned companies. A temporary help service recruits and hires its own employees, assigns them to support or supplement other organizations' workforces, and "customarily" tries to reassign them when each assignment ends. Also ask how it reads the "all or a majority ... a division or work unit" test for your account.

The unemployment law reaches further than the PEO act. RSMo 288.032.2 defines a "lessor employing unit" as any independent business that, under a written lease agreement, "engages in the business of providing individuals" to a client lessee, and it does not depend on PEO registration. Its client liability rule therefore applies to a leasing provider that is not registered as a PEO, unless the provider is a private employment agency supplying temporary help and liable as the employer for those wages.

Who pays Missouri unemployment tax on an EOR or PEO worker?

The lessor pays, and the client backs it. RSMo 285.740.11 says that for chapter 288 a registered PEO is treated as a leasing employer under section 288.032 (the statute prints it as "lesser employing unit"). Under RSMo 288.032.2:

• Liability. The lessor "shall be liable for contributions on wages paid by the lessor employing unit to individuals performing services for client lessees."
• Joint liability by default. Unless the lessor has met the security rule, any client leasing workers "shall be jointly and severally liable for any unpaid contributions, interest and penalties," and the lessor "shall keep separate records and submit separate quarterly contribution and wage reports for each of its client lessee entities."
• The release. A surety bond, deposited securities, an irrevocable letter of credit or a pledged certificate of deposit worth the lessor's contributions for the last calendar year "or one hundred thousand dollars, whichever amount is the greater," relieves clients of joint liability and of the separate reporting. A new lessor must post it "before entering into a written lease agreement with client lessees."

The Division of Employment Security's liability page summarizes the same rule and lists the leasing forms. Ask your provider whether it has posted the guarantee and get the confirmation in writing. If you also employ Missouri workers directly, you need your own account once you pay $1,500 in wages in a quarter or have a worker in 20 different weeks, notifying the Division within 30 days.

Who carries workers' compensation in Missouri?

The Division of Workers' Compensation says you must carry insurance "if you have five or more employees," or one in construction (employer page). Under RSMo 285.740:

• The responsibility to obtain coverage "shall be specifically allocated in the professional employer agreement to either the client or the PEO."
• Coverage for "both the directly employed workers of a client and the covered employees of that client shall be all in the residual or all in the voluntary market with the same carrier." In the voluntary market, the client can use a standard policy or self-insurance, and the PEO can use self-insurance, a policy of the type in 20 CSR 500-6.800, or a multiple coordinated policy in either party's name.
• A PEO told its policy will be cancelled or not renewed must notify every affected client "by certified mail, within ten days," unless replacement coverage starts the same day.
• When the relationship ends, the PEO gives the client its payroll, class code and claims information within five business days, so the client's own experience modification can be calculated, and the client must pass it to any prospective insurer and disclose the PEO relationship.
• "Both the client and the PEO shall be considered the employer," and the exclusive remedy protection of RSMo 287.120 applies to both, whichever obtained the coverage.

Which Missouri registrations, reports and notices still apply?

• Income tax withholding. The agreement must make the PEO responsible to "Withhold, collect, report, and remit payroll-related and unemployment taxes" (RSMo 285.730.2). Missouri's withholding rule, 12 CSR 10-2.015, has every employer required to withhold register with the Department of Revenue, and each worker completes Form MO W-4.
• City earnings taxes. St. Louis collects a one percent earnings tax from city residents "regardless of the location of their employer" and from employees of businesses located or working in the city, wherever they live. Kansas City has an earnings tax of its own; check with its revenue division. Ask whether the provider registers with the city where the worker lives or works.
• New-hire reporting. "Employers must submit their new hire reports within 20 days after the employee is hired," per the state's new hire FAQ.
• Co-employment notice. The PEO gives each covered employee written notice of "the general nature of the coemployment relationship" (RSMo 285.730.3).
• Posters. The state posters are on the Department of Labor's posters page; ask how a remote worker receives them.
• Paid leave programs. We found no Missouri paid family leave or disability insurance program that needs a separate employer registration.

What does the client company still own in Missouri?

Unless the act or agreement says otherwise, the client "shall be obligated to perform all duties and responsibilities otherwise applicable to an employer," retains "the exclusive right to direct and control the covered employees," and is "solely responsible for directing, supervising, training, and controlling the work" (RSMo 285.730.1, .4). In practice:

• Pay beyond base wages. The PEO's wage duty excludes bonuses, commissions, severance, deferred compensation, profit sharing and paid time off unless it expressly agreed to them (RSMo 285.730.2).
• Hiring rules. You run the search. Missouri is one-party consent for phone calls (see Missouri recording consent law for interviews); Kansas City bars employers with six or more employees from asking about salary history (see salary history in Missouri) and has its own criminal history rules (see ban the box in Missouri); medical marijuana cardholders are protected in hiring (see Missouri drug testing laws); and checks follow Missouri background check laws.
• Non-competes and licenses. The act does not affect restrictive covenants between the client and the worker, and the PEO has no liability for them unless it agrees in writing; a licensed covered employee is "deemed solely an employee of the client" for the license (RSMo 285.710). See Missouri non-compete law.
• Incentives and contracts. For state tax credits and incentives based on employment, covered employees are the client's alone, and a minority or women's business enterprise keeps its status (RSMo 285.710.7-.8). State contractors still owe the E-Verify affidavit (see E-Verify requirements in Missouri).
• Co-employment liability. Both businesses can be named in wage or discrimination claims; see joint employer liability for staffing agencies.
• Federal payroll taxes. The IRS says the client "generally remains responsible" for employment taxes unless the PEO is IRS-certified; check the CPEO public listings.

When is registering your own company in Missouri the better route?

• The provider has not posted the unemployment guarantee. You are jointly liable for its Missouri contributions anyway, so running payroll yourself may be the cleaner risk.
• You plan several Missouri hires. Your own setup is a Division of Employment Security account within 30 days of liability, a Department of Revenue withholding account, Form MO W-4, workers' compensation at five employees, 20-day new-hire reports and any city earnings tax account.
• The work is a defined project. A temporary help firm is outside the PEO act and the leasing rule, and may fit better.

Questions to ask an employer of record or PEO before signing for Missouri

1. Are you on the Secretary of State's list of registered PEOs, with a full, group or limited registration, and when is your renewal due?
2. If not, which exclusion in RSMo 285.705(8) do you rely on, and are you registered with the Business Services Division?
3. Have you posted the RSMo 288.032 guarantee with the Division of Employment Security, and what is its amount?
4. If not, will you file separate quarterly reports for us, and under which account and rate?
5. Which party holds workers' compensation under our agreement, and is our own coverage in the same market with the same carrier?
6. Who registers for withholding, and for any city earnings tax where the worker lives or works?
7. Do your wage obligations cover the bonus, commission and paid time off in our offer?
8. Are you an IRS-certified PEO, and who is liable for federal employment taxes if a deposit is missed?
9. Can we move the worker to our own payroll later, and is there a conversion fee?

Employer of record rules in nearby states: Kentucky, Tennessee, Illinois, Arkansas and Nebraska.