What Is a Common-Law Employee for 401(k) Plans?

A Form 1099 is a reporting form, not a worker-classification test.

Neither is:

• an independent-contractor agreement
• an LLC formed by the worker
• remote work
• commission pay
• part-time hours
• a staffing or PEO label

Under the common-law rules, the core question is whether the business has the right to control what the worker does and how the worker does it.^[1][2][3][4]

The employer does not need to stand over the worker every day.

The right to direct the details can matter even when experience, trust or geography means the business rarely exercises it.^[1][4]

For a 401(k) sponsor, getting that classification wrong can distort much more than payroll taxes.

A misclassified employee can affect:

• plan eligibility
• Section 410(b) coverage
• ADP and ACP populations
• employer contributions
• vesting service
• solo 401(k) status
• correction obligations

Worker classification sits upstream of plan administration.

Key Takeaways

• A Form 1099 does not legally make someone an independent contractor.
• IRS common-law analysis focuses on the entire relationship and currently groups the evidence into:
• behavioral control
• financial control
• type of relationship.^[1][2][3]
• No fixed number of factors determines status.^[3]
• The legal right to control can be more important than how often control is actually exercised.^[1][4]
• A written contractor agreement matters, but the substance of the relationship controls when the facts point elsewhere.^[1][2][4]
• Remote, part-time and commission-paid workers can be common-law employees.
• A worker can use personal tools and still be an employee; tools are one fact among many.^[2][4]
• ERISA also uses traditional common-law agency principles. In *Nationwide Mutual v. Darden*, the Supreme Court held that all incidents of the relationship must be weighed and no single factor is decisive.^[5]
• Form SS-8 can obtain an IRS determination for federal employment-tax and withholding purposes.^[8]
• Form SS-8 is not itself a determination of entitlement to benefits under a particular ERISA plan.
• Section 530 can relieve an employer from specified employment-tax liability while not determining that the worker is an independent contractor.^[9]
• Common-law employee status does not automatically guarantee participation in every 401(k). The plan document's eligibility provisions still matter, subject to federal coverage and nondiscrimination rules.^[10][11]
• A misclassified employee who should have been eligible can require retirement-plan correction even when Forms 1099 were filed consistently.^[10][12]
• A solo 401(k) can lose its no-testing advantage when eligible common-law employees are hired.^[6]

The Legal Relationship Beats the Label

Suppose a worker signs an agreement saying:

Independent Contractor

The business:

• sets the worker's hours
• requires work on company systems
• assigns tasks daily
• supervises performance
• requires company methods
• prevents meaningful delegation
• maintains an indefinite relationship

The contract is evidence.

It is not the answer.

IRS guidance states that when an employer-employee relationship exists, the name the parties give the relationship does not change worker status.^[1][2][4]

The same principle cuts the other way.

A contract calling someone:

consultant

does not make the person an employee when the worker genuinely operates an independent business and controls the methods, costs and commercial risk of the work.

Facts first.

What Does "Common-Law Employee" Mean?

Treasury regulations state that a person is a common-law employee when the legal relationship between the worker and the person receiving the services is that of employer and employee under the usual common-law rules.^[4]

The regulations emphasize the right to control:

• the result to be accomplished
• the details and means used to accomplish it.^[4]

An independent contractor is generally subject to control over the desired result, but not the means and methods used to reach that result.^[4]

That distinction is easier to state than to apply.

Modern jobs often contain evidence pointing both directions.

Right to Control Is Not Constant Supervision

An experienced controller works from home.

The CFO rarely tells the controller how to reconcile an account because the controller already knows.

But the company can:

• assign priorities
• require its accounting procedures
• change deadlines
• require use of its chart of accounts
• review work
• redirect the controller to another project

The absence of daily instruction does not necessarily mean the company lacks the right to control.

IRS guidance expressly says an employee can have substantial freedom of action while the employer retains the right to control the details.^[1][2]

IRS Uses Three Evidence Categories

IRS currently organizes common-law classification evidence into:^[2][3]

1. behavioral control
2. financial control
3. type of relationship

These are not three independent pass/fail tests.

They are categories for organizing the evidence.

IRS warns there is no magic number of factors and no single factor that determines status.^[3]

Behavioral Control

Behavioral control asks whether the business has the right to direct or control how the worker performs the job.^[2][3]

Relevant evidence includes instructions about:

• when to work
• where to work
• what tools or equipment to use
• which workers to hire or assist
• where to purchase supplies
• which work must be performed by a particular person
• what sequence or order to follow.^[2]

The more detailed the business's right to direct the process, the stronger the employee signal.

Instructions Can Exist Without a Daily Checklist

A law firm does not have to tell an experienced paralegal:

Click this button, then type this sentence.

It can still control:

• case assignments
• filing procedures
• work hours
• software
• confidentiality processes
• supervision
• deadlines
• approval.

Common-law control can operate at a professional level.

Skill does not eliminate employee status.

Training Can Point Toward Employee Status

IRS Publication 15-A treats business-provided training about required procedures and methods as evidence of behavioral control.^[2]

Example:

A company hires a sales representative and requires:

• company sales script
• weekly coaching
• mandatory CRM workflow
• approved pricing language
• manager call reviews

Calling the representative an independent contractor does not erase that evidence.

The business is prescribing how the work should be performed.

Evaluation Systems Matter

An evaluation that measures only:

Did the project meet the contract specification?

can fit an independent business relationship.

An evaluation that measures:

• how calls are conducted
• adherence to internal process
• attendance
• sequence of work
• internal behavior standards

can show more control over the means and methods.

The question is not whether the business checks quality.

Clients do that too.

The question is what the business has the right to control.

Financial Control

Financial control asks whether the worker has meaningful control over the business aspects of the work.^[2][3]

Relevant facts can include:

• significant investment
• unreimbursed expenses
• availability of services to the market
• method of payment
• opportunity for profit or loss.^[2][3]

No one item decides the result.

Investment Means More Than Owning a Laptop

A consultant owns:

• laptop
• phone
• desk

That fact alone says little.

Many employees use personal devices.

A stronger independent-contractor fact pattern can involve substantial investment in:

• specialized equipment
• staff
• office or shop space
• insurance
• software infrastructure
• marketing
• inventory
• business systems

The investment should be viewed in the context of the work.

Unreimbursed Expenses Can Show Business Risk

An independent business commonly bears recurring costs regardless of whether a specific client reimburses them.

Examples:

• advertising
• office rent
• subcontractors
• professional liability insurance
• software subscriptions
• equipment depreciation
• travel not billed through

An employee can have unreimbursed expenses too.

The existence of one expense is not decisive.

The larger question is whether the worker is operating a business with genuine economic risk.

Opportunity for Profit or Loss

Independent contractors can often affect profit through decisions about:

• pricing
• labor
• equipment
• expenses
• scheduling
• efficiency
• client mix.^[2][3]

An employee can earn:

• commission
• bonus
• incentive pay

without bearing that kind of business risk.

Variable pay is not the same as entrepreneurial profit or loss.

Commission Pay Does Not Make Someone a Contractor

IRS's own common-law employee example involves a full-time auto salesperson paid by commission who is nevertheless an employee because the dealer controls important parts of the working relationship.^[1]

Commission answers:

How is compensation calculated?

It does not answer:

Who controls the work?

Offering Services to the Market Matters

A genuinely independent consultant might:

• advertise publicly
• maintain a business website
• seek multiple clients
• negotiate engagements
• turn down work
• hire assistance
• price projects independently

A person who works indefinitely for one business and is economically integrated into that business can present a different relationship.

One client is not automatic employee status.

Multiple clients are not automatic contractor status.

They are evidence.

Method of Payment Is Only One Fact

Employees are often paid:

• hourly
• salary
• commission

Independent contractors are often paid:

• flat project fee
• time and materials
• hourly professional rate

There is overlap.

IRS specifically notes that some professions commonly pay independent contractors hourly.^[2]

Do not classify workers from the invoice format.

Type of Relationship

The third IRS category looks at how the parties structure and experience the relationship.^[2][3]

Relevant facts include:

• written contracts
• employee-type benefits
• permanency
• whether the work is a key aspect of the business.^[2][3]

Each can be informative.

None is absolute.

A Contract Matters, but It Cannot Override the Facts

A well-written agreement can document:

• project scope
• independence
• payment terms
• right to serve others
• responsibility for expenses
• lack of benefits

That evidence matters.

But Treasury regulations state that describing a true employee as an:

• partner
• agent
• independent contractor
• similar label

does not change an actual employer-employee relationship.^[4]

A contract can memorialize a real independent business.

It cannot manufacture one from contradictory facts.

Employee Benefits Are Evidence, Not a Requirement

Providing:

• pension benefits
• health insurance
• vacation
• sick pay

can point toward employment.^[2][3]

But an employer cannot establish contractor status simply by withholding benefits.

That logic would reward the misclassification itself:

"We gave the worker no employee benefits, therefore the worker is not an employee."

Worker status comes before benefit eligibility.

Permanency Can Matter

An open-ended relationship can suggest employment.^[2][3]

A six-week project with a defined deliverable can suggest independent contracting.

But duration is context-dependent.

A legitimate independent consultant can serve one client for years.

An employee can be hired for a short seasonal period.

Permanency belongs in the full factual record.

Work Central to the Business Can Matter

IRS identifies whether the worker performs a key aspect of the business as relationship evidence.^[3]

A software company that maintains a large group of long-term developers who:

• build its core product
• work under engineering managers
• use internal development systems
• follow internal release processes

has a different fact pattern from hiring an outside roofer to replace the office roof.

The first relationship is more integrated into the company's regular business.

Integration alone still does not decide status.

Remote Work Does Not Create Contractor Status

Remote employees can be subject to extensive employer control through:

• work schedules
• assigned tasks
• software permissions
• internal procedures
• meetings
• approvals
• performance management

Physical distance changes where supervision happens.

It does not eliminate the right to supervise.

Part-Time Workers Can Be Employees

IRS states that common-law status does not depend on whether the person works full time or part time.^[1][2]

A receptionist working:

15 hours per week

under the employer's schedule and procedures can be an employee.

Hours may affect plan eligibility.

They do not determine whether the person is an employee in the first place.

A Worker-Owned LLC Does Not End the Analysis

A worker can form:

Jane Smith Consulting LLC

and still perform services in a relationship that looks like employment.

The entity can matter to:

• contracting
• tax reporting
• liability
• invoicing

It does not automatically change who controls the work.

The employer should analyze the actual service relationship rather than treating the LLC certificate as a classification opinion.

Personal Equipment Is Not a Safe Harbor

Treasury regulations list furnishing tools and a workplace as employer-type factors, but state that the common-law determination depends on the particular facts.^[4]

A software developer's:

$2,000 laptop

is not equivalent to a construction contractor owning:

• excavators
• trucks
• crew equipment
• warehouse space.

The economic significance of the investment matters.

The Supreme Court's ERISA Test Is Broader Than a Three-Box Checklist

Retirement-plan disputes also operate under ERISA.

In *Nationwide Mutual Insurance Co. v. Darden*, the Supreme Court held that ERISA's term employee uses traditional common-law agency principles.^[5]

The Court listed factors including:

• right to control manner and means
• skill required
• source of tools
• work location
• duration of relationship
• right to assign additional projects
• worker discretion over hours
• method of payment
• role in hiring and paying assistants
• whether the work is part of the hiring party's regular business
• provision of employee benefits
• tax treatment.^[5]

The Court rejected a shortcut.

All incidents of the relationship must be assessed and weighed.

No one factor is decisive.^[5]

IRS Classification and ERISA Benefit Entitlement Are Related but Not Identical Questions

The facts overlap heavily.

The procedures do not.

IRS worker-classification guidance primarily addresses federal tax classification.

ERISA benefit disputes can ask whether the person is an employee under federal common-law agency principles and then whether the person is entitled to participate under the plan.

That creates two gates:

Gate 1

Is the person an employee?

Gate 2

Does the plan cover that employee?

Winning Gate 1 does not automatically answer Gate 2.

Common-Law Employee Does Not Automatically Mean Plan Participant

A business can have common-law employees who are not participants because:

• they have not satisfied age/service requirements
• the plan validly excludes their employee classification
• another permitted exclusion applies
• plan entry date has not arrived.

The plan must still satisfy Section 410(b) coverage and other nondiscrimination requirements.^[10][11]

Worker status answers:

Who is an employee?

The plan document answers:

Which employees does this plan cover?

Federal qualification law tests whether the resulting design is permissible.

The Plan Document Is the Next Document to Read

IRS tells plan sponsors that the plan document defines who is covered and that the plan must be operated according to those terms.^[11]

After determining someone is a common-law employee, review:

• definition of Employee
• Eligible Employee
• excluded classes
• age requirement
• service requirement
• entry dates
• compensation definition
• leased-employee provisions
• participating-employer provisions.

Do not jump directly from:

employee

to:

retroactively owed every plan benefit

without reading the document.

Do not jump to the opposite conclusion either.

A Classification Exclusion Still Has to Survive Coverage Testing

Suppose a plan excludes:

field technicians

The technicians are common-law employees.

The exclusion is written into the document.

That avoids one type of operational error: the employer is following the document.

It does not prove the plan satisfies Section 410(b).

If the excluded field technicians are mostly NHCEs and management is mostly HCEs, the exclusion can create a coverage failure.

INV-089 explains that test.

Form 1099 Is Evidence of Treatment, Not Legal Status

Form 1099-NEC tells the IRS that the payer treated compensation as nonemployee compensation.

That filing can matter to:

• reporting consistency
• Section 530 relief
• tax administration.

It does not transform the underlying relationship.

A business can file Forms 1099 for five years and still have workers who are legally employees.

Consistency can affect tax relief.

It does not rewrite the facts.

Form W-2 Is a Strong Operational Signal, Not the Entire Legal Framework

IRS's 401(k) Fix-It Guide tells employers, as a practical starting point, to treat each person receiving a Form W-2 as an eligible employee unless the person can be properly excluded under the plan.^[10]

That is sensible administration.

But the harder misclassification problem is usually the worker not on the W-2 list.

A census review that starts and ends with payroll can miss the very people classification law requires the employer to examine.

Section 530 Relief Is Commonly Misunderstood

Section 530 can relieve a service recipient from specified federal employment-tax liability when statutory consistency and reasonable-basis requirements are met.^[9]

IRS states explicitly:

Section 530 relief does not determine that a worker is an independent contractor.^[9]

That distinction matters for retirement plans.

An employer can potentially receive employment-tax relief and still need a separate analysis of:

• worker status
• plan terms
• ERISA rights
• qualified-plan coverage.

Employment-tax relief is not a retirement-plan classification certificate.

Example: Section 530 Relief Does Not Finish the 401(k) Review

Company has treated technicians as contractors for years.

It consistently:

• issued Forms 1099
• used the same classification for similar workers
• had a claimed reasonable basis.

Assume the company qualifies for Section 530 employment-tax relief.

That can protect the company from specified employment-tax liability.^[9]

It does not mean the retirement-plan administrator can write:

"IRS says these workers are contractors."

IRS says the opposite about Section 530's legal effect: the relief does not decide worker status.^[9]

The 401(k) analysis remains.

Form SS-8 Answers a Narrower Question Than Many Employers Think

A worker or business can file Form SS-8 to ask IRS to determine whether the worker is an employee or independent contractor for:

• federal employment taxes
• income-tax withholding.^[8]

IRS says the procedure is for federal tax matters.^[8]

That determination can be highly relevant evidence.

It is not the same as a determination that:

• the worker is entitled to a particular 401(k) benefit
• an ERISA claim succeeds
• a plan document covers the worker.

Those questions require the plan and applicable benefits law.

Form SS-8 Is Not Fast

IRS currently warns that a Form SS-8 determination can take at least:

six months.^[3]

A company cannot use:

"We filed SS-8"

as a reason to ignore a classification problem indefinitely.

For an ongoing worker relationship, consider interim legal and benefits administration while the determination is pending.

A Common-Law Employee Can Also Have a Separate Self-Employed Business

IRS Publication 560 gives the example of an attorney who is:

• a corporate common-law employee during regular work
• self-employed in a separate evening law practice.^[7]

Those statuses can coexist.

Worker classification attaches to the particular service relationship.

A person is not globally:

employee

or:

contractor

for every activity.

That matters when someone has:

• W-2 job
• side consulting practice
• solo 401(k)
• unrelated employer plan.

Each service relationship needs its own analysis.

Corporate Officers Are a Separate Warning

Treasury regulations generally treat a corporate officer as an employee of the corporation, subject to a narrow exception for an officer who performs no or only minor services and receives or is entitled to no remuneration.^[4]

A working S corporation owner cannot safely say:

"I own the company, so I am self-employed rather than an employee."

Corporate form changes the analysis.

A sole proprietor is not his or her own common-law employee.

A working corporate officer generally is an employee of the corporation.

Directors Are Different for Director Services

Treasury regulations state that a corporate director is not an employee with respect to services performed as a director.^[4]

The same person can separately perform employee services for the corporation.

Again, classify the relationship and the service performed.

Titles do not create one global status.

Solo 401(k) Owners Have a Specific Classification Risk

IRS says a one-participant 401(k) avoids ordinary nondiscrimination testing while the business owner has no common-law employees.^[6]

That advantage disappears when eligible employees are hired.^[6]

A business owner cannot preserve:

Solo 401(k)

status by moving a genuine employee to:

1099 contractor

on the payroll system.

If the worker is a common-law employee and satisfies plan eligibility, the plan consequences follow the actual relationship.

INV-030 covers solo 401(k)s.

Example: The "Solo" Plan That Is No Longer Solo

Owner has operated a consulting business for four years.

Owner sponsors a solo 401(k).

Assistant works:

• 30 hours per week
• indefinitely
• on company schedule
• using company CRM
• under owner's daily assignments
• only for this business.

The assistant invoices monthly through an LLC and receives Form 1099.

Those labels do not settle status.

If the assistant is a common-law employee and has satisfied the plan's eligibility conditions, the owner can have:

• eligibility problem
• coverage problem
• missed deferral problem
• employer-contribution problem
• testing problem.

The plan provider's product label does not override the Code.^[6]

Leased Employee Comes After Common-Law Employee

INV-092 covers Section 414(n).

That rule begins only after determining that the person is not already the recipient's employee.

The sequence is:

1. common-law employee?
2. if no, Section 414(n) leased employee?
3. if neither, other worker status?

Putting a PEO or staffing contract around a common-law employee does not make the common-law issue disappear.

Controlled Groups and Affiliated Service Groups Expand the Employer Side

INV-090 covers controlled groups.

INV-091 covers affiliated service groups.

Worker classification asks:

Is this person an employee?

Employer aggregation asks:

Employee of which statutory employer group?

Both matter.

An employee paid by Company A can affect a plan sponsored by Company B when the entities are treated as one employer under the applicable aggregation rules.

Do not solve only one side of the relationship.

Misclassification Can Cause a Missed Deferral Opportunity

IRS's 401(k) Fix-It Guide treats exclusion of an eligible employee as a qualification failure.^[10]

The correction can require:

• giving the employee the ability to participate prospectively
• corrective employer contribution for missed deferral opportunity when required
• corrective matching contribution
• missed nonelective contribution
• earnings adjustments.^[10][12]

The exact method depends on:

• duration
• plan design
• automatic enrollment
• timing of correction
• current EPCRS rules.

Do not use a stale correction percentage from an old memo.

Misclassification Can Change More Than One Year

Suppose the worker should have been classified as an employee three years ago.

The review may need to reconstruct:

• hire/service date
• plan entry date
• compensation by year
• deferral opportunity
• match
• profit sharing
• vesting
• HCE/NHCE status
• Section 410(b) testing
• ADP/ACP testing
• top-heavy contribution
• distributions or forfeitures.

Correcting payroll classification prospectively does not answer those historical plan questions.

Coverage Tests May Need to Be Rerun

A newly recognized common-law employee can change:

• NHCE denominator
• HCE denominator
• benefiting population
• ADP group
• ACP group.

A plan that passed before classification correction can fail afterward.

The more workers misclassified, the more likely this becomes a population problem rather than a single-account correction.

INV-087, INV-088 and INV-089 explain the separate tests.

Service Credit Can Reach Back

If a worker was always a common-law employee, the employer should not assume plan service begins only when payroll changes from:

1099

to:

W-2

The plan's service-crediting rules need to be applied to the actual employment period.

That can affect:

• eligibility
• vesting
• entry date
• employer contributions.

The reclassification date is an administrative date.

It is not necessarily the legal start of employment.

Section 530 Does Not Automatically Fix or Excuse the Plan

This distinction deserves repetition because it is easy to mishandle.

Section 530 concerns employment-tax relief.^[9]

EPCRS concerns retirement-plan qualification failures.^[12]

An employer can have:

• employment-tax relief
• retirement-plan correction obligation

at the same time.

Different legal problem.

Different remedy.

VCSP Is Also an Employment-Tax Program

IRS's Voluntary Classification Settlement Program allows qualifying businesses to prospectively reclassify workers as employees with specified federal employment-tax relief.

That can be useful for payroll compliance.

It does not itself calculate:

• 401(k) retroactive eligibility
• missed match
• vesting
• coverage correction.

Those retirement-plan questions still require separate analysis.

What a Good Classification File Contains

For every material contractor or long-term consultant relationship, preserve:

Contract

What relationship did the parties intend?

Scope of work

Is there a defined project or an ongoing role?

Instructions

Who decides:

• schedule
• work location
• methods
• sequence
• personnel?

Supervision

Who reviews the work and how?

Equipment

Who supplies meaningful tools and infrastructure?

Expenses

Who bears recurring business costs?

Pricing

Can the worker negotiate price and profit through business decisions?

Market activity

Does the worker genuinely offer services to multiple customers?

Assistance

Can the worker hire and pay assistants?

Duration

Project-based or indefinite?

Benefits

Are employee-type benefits provided?

Integration

Is the work part of the company's regular business?

Tax treatment

W-2, 1099 or other?

The tax form is one row.

It should not be the file.

Run the Review by Worker Class, Not Just Individual

If a company has:

40 installers classified as contractors

and they all operate under the same model, reviewing one person can expose a class-wide issue.

IRS's VCSP rules also recognize worker classes.

A classification error replicated across a workforce can become:

• employment-tax issue
• coverage issue
• testing issue
• correction-cost issue.

The risk scales faster than the headcount.

What to Ask Before the Annual 401(k) Census

This is the census work that should happen before testing percentages are calculated.

Frequently Asked Questions

What is a common-law employee?

A worker is generally a common-law employee when the business has the right to control what will be done and how it will be done, based on the full facts and circumstances of the relationship.^[1][2][4]

Does Form 1099 make someone an independent contractor?

No. Form 1099 reflects how the payer reported compensation. Worker status depends on the actual legal relationship.^[1][2][4]

Does an independent-contractor agreement control?

No. It is evidence of intent, but the substance of the relationship governs when the facts establish an employer-employee relationship.^[1][2][4]

Does working remotely make someone a contractor?

No. A remote worker can still be subject to the business's right to direct schedules, procedures, assignments, systems and methods.

Does commission pay mean independent contractor?

No. Employees can be paid by commission. IRS's common-law guidance includes a commission salesperson example classified as an employee.^[1][2]

Does part-time work mean independent contractor?

No. IRS states that common-law employee status does not depend on whether the worker is full time or part time.^[1][2]

Does owning an LLC make the worker an independent contractor?

Not automatically. The service relationship still must be analyzed.

What are the IRS worker-classification factors?

IRS currently groups the evidence into behavioral control, financial control and type of relationship. There is no fixed factor count or single decisive factor.^[2][3]

Is actual supervision required?

No. The right to control how work is performed can be enough even when the business does not constantly exercise that right.^[1][4]

What does ERISA use to define employee?

The Supreme Court held in *Nationwide Mutual v. Darden* that ERISA uses traditional common-law agency criteria and that all incidents of the relationship must be weighed, with no single factor controlling.^[5]

Can a common-law employee be excluded from a 401(k)?

Potentially, depending on the plan document and applicable qualification rules. The plan's covered employee classification still must satisfy Section 410(b), nondiscrimination and other federal requirements.^[10][11]

Does every common-law employee automatically become a participant?

No. The employee must satisfy the plan's applicable eligibility provisions and belong to a covered class under a legally compliant plan design.

What is Form SS-8?

Form SS-8 is the IRS procedure through which a worker or business can request a determination of worker status for federal employment taxes and income-tax withholding.^[8]

Does Form SS-8 decide 401(k) benefits?

Not directly. It addresses federal tax classification. Entitlement under a retirement plan requires a separate analysis of the plan and applicable benefits law.

What is Section 530 relief?

Section 530 can relieve a qualifying service recipient of specified employment-tax liability for workers treated as nonemployees. IRS explicitly says the relief does not determine that those workers are independent contractors.^[9]

If I have Section 530 relief, can I ignore the workers for my 401(k)?

No. Section 530 does not settle retirement-plan employee status or plan eligibility. Those questions require their own analysis.^[9]

What happens if a common-law employee was wrongly excluded from a 401(k)?

The plan can need correction for a missed deferral opportunity, matching or nonelective contributions, earnings and related qualification failures under current IRS correction rules.^[10][12]

Does reclassifying the worker today fix prior 401(k) years?

Not automatically. Historical employee status, service, eligibility, contributions and testing may need to be reconstructed.

Can a common-law employee have a solo 401(k) for separate work?

A person can be an employee in one relationship and self-employed in another separate trade or business.^[7] Eligibility for a separate self-employed retirement plan depends on that separate business and applicable aggregation rules.

Can a PEO agreement turn my employees into leased employees?

Not automatically. Common-law status must be determined first. Section 414(n) applies only if the person is not already the recipient's employee. INV-092 explains the leased-employee rules.

The Order of Analysis

For every worker who is not obviously on ordinary employee payroll, use this sequence:

1. Common-law employee?
2. If no, Section 414(n) leased employee?
3. If employee, which statutory employer or employer group?
4. What does the plan document say about that employee?
5. Has the employee satisfied age, service and entry requirements?
6. Does the covered/excluded classification pass Section 410(b)?
7. Do ADP, ACP or top-heavy tests need to be rerun?
8. Was the employee excluded in a prior year?
9. What correction is required under current EPCRS?

Do not start with the tax form.

Do not start with the contract title.

Start with the relationship.

Sources & References

1. IRS: Employee (Common-Law Employee)
2. IRS Publication 15-A (2026): Employer's Supplemental Tax Guide
3. IRS: Independent Contractor (Self-Employed) or Employee?
4. 26 CFR §31.3121(d)-1: Who Are Employees
5. Nationwide Mutual Insurance Co. v. Darden, 503 U.S. 318 (1992)
6. IRS: One-Participant 401(k) Plans
7. IRS Publication 560: Retirement Plans for Small Business
8. IRS: Completing Form SS-8
9. IRS: Worker Reclassification — Section 530 Relief
10. IRS: 401(k) Fix-It Guide — Excluding Eligible Employees
11. IRS: A Guide to Common Qualified Plan Requirements
12. IRS: EPCRS Overview

Educational Disclaimer

ROIStreet publishes educational content about worker classification and retirement-plan compliance. This article is not legal, tax, employment, fiduciary or plan-administration advice. Worker status depends on the actual service relationship, applicable federal law, plan terms, employer structure and current guidance.

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