Physician contractor vs employee: The classification rules that cost practices millions

You hired a dermatologist to cover Tuesdays and Thursdays. She uses your exam rooms, medical assistants, EHR system, and supplies. You set her schedule, assign her patients, and require her to follow your clinical protocols. You pay her as a 1099 independent contractor because she asked and because it saves payroll taxes, benefits, and workers' compensation premiums.

The IRS does not care what she asked for. Based on that working arrangement, she is an employee. When the IRS or Department of Labor determines that a worker classified as a contractor is actually an employee, the practice owes back payroll taxes, penalties, interest, unpaid benefits, and potential overtime. For a single misclassified physician earning $200,000 annually, retroactive liability can exceed $60,000 per year of misclassification.

Classification is a legal determination based on how the working relationship actually functions. Getting it wrong is one of the most expensive compliance failures in the healthcare payroll compliance landscape.

The IRS test that determines classification

The IRS worker classification analysis organizes the determination into three categories. No single factor is decisive; the overall picture controls.

Behavioral control: Does the practice direct how the work is done?

If you set the physician's schedule, assign patients, require specific clinical protocols, mandate EHR documentation standards, or dictate which procedures to perform, you are exercising behavioral control. This points toward employee status. A true contractor controls when, where, and how they deliver services. They may agree to deliver specific outcomes but retain autonomy over methods. The key question: could this physician do the same work for your competitor tomorrow using their own clinical judgment? If your practice dictates the operational details, that supports employee classification.

Financial control: Does the physician have a financial stake?

A contractor invests in their own equipment, bears their own expenses, and faces profit-and-loss risk. A physician who carries their own malpractice insurance, bills under their own NPI, and bears collection risk looks like a contractor. One paid a flat rate using the practice's equipment and billing system, regardless of collections, looks like an employee.

Type of relationship: Permanence and integration

Employee indicators: indefinite relationship, full-time hours, benefits eligibility, integration into operations. Contractor indicators: defined period, project-based scope, services to multiple clients. A contract that says "independent contractor" while the working reality says "employee" will not protect you in an audit.

The locum tenens gray area

Locum tenens physicians create the most classification confusion, filling temporary coverage gaps under conditions that often resemble employment.

When locums are legitimately contractors, a physician engaged through a locum tenens staffing agency is typically the agency's employee or contractor, not yours. The agency handles payroll, taxes, and malpractice coverage. Your practice pays the agency a fee. This is the cleanest structure because the classification question sits with the agency, not the practice.

A physician you engage directly can qualify as a contractor if they carry their own malpractice insurance, provide services to multiple practices, and work for a defined temporary period.

When locums look like employees, a "locum" who has been covering the same three days per week for 18 months, uses your staff and systems, follows your protocols, and has no other clients is an employee in all but name. The temporary nature that supports contractor status evaporates when the arrangement becomes indefinite.

What misclassification actually costs

The IRS treats misclassification as tax avoidance, and penalties are structured accordingly. These liabilities appear on the balance sheet; the guide to medical practice financial statements covers how to recognize this exposure in monthly reporting.

Back payroll taxes. The practice owes the employer FICA share (7.65%) plus the employee share that should have been withheld (7.65%) for every year of misclassification. On $200,000 in annual compensation, that is $30,600 per year in FICA alone before penalties.

IRS penalties compound the base tax liability significantly: 1.5% of wages for failure to withhold income tax, 20% of the employee FICA share not withheld, and 100% of the employer FICA share.

State-level consequences. State labor departments may assess back workers' compensation premiums, unemployment insurance contributions, and personal liability on practice owners for willful misclassification. Add retroactive benefits exposure if the physician should have been benefits-eligible. For a single physician misclassified over three years, total liability can range from $80,000 to $200,000.

How to structure legitimate contractor relationships

Use a written independent contractor agreement specifying the physician controls service delivery, is responsible for their own taxes and insurance, may work for other entities, and is engaged for a defined scope. The agreement establishes intent but must match how the relationship actually operates. A contractor should determine their own clinical approach; requiring them to follow your protocols in the same way your employed physicians do is behavioral control.

Require the contractor to carry their own malpractice insurance. A physician whose malpractice coverage is provided by the practice looks more like an employee.

Avoid indefinite arrangements. Contractor engagements should have defined start and end dates. An open-ended arrangement with no project scope resembles permanent employment.

Do not integrate the contractor into employee systems. Contractors should not appear on the organizational chart, attend mandatory staff meetings, or be subject to employee policies. Each integration point erodes contractor status.

Pay for results, not time. Per-session or per-procedure compensation more strongly supports contractor status. A physician paid $1,500 per clinic session looks more like a contractor than one paid $150 per hour.

When misclassification is discovered internally, the adjusting journal entries guide covers how to record back tax liabilities correctly. Retroactive payroll corrections also affect the month-end close and should be reconciled in the period they are identified.

When in doubt, classify as an employee

The safe harbor is employment. No practice has been penalized for treating a contractor as an employee. If the relationship involves your schedule, your staff, your systems, and your patients on an ongoing basis, the physician is almost certainly an employee. FICA savings on $200,000 are $15,300 per year. The penalty for misclassification can exceed $60,000 per year, retroactively. An on-demand CFO can run a classification audit before the IRS does it for you.

Frequently asked questions

Can a physician simply request to be paid as an independent contractor?

No. The IRS determines status based on the actual working relationship, not the physician's preference or the contract's label. If working conditions match employment, the arrangement is treated as employment. Either party can request a formal determination from the IRS using Form SS-8.

What is Section 530 relief, and does it protect practices from back taxes?

Section 530 relief applies when the practice had a reasonable basis for contractor treatment: industry standard practice, a prior IRS audit that did not challenge the classification, or written professional advice. It requires consistent treatment of similar workers, does not cover state-level exposure, and should be reviewed with a CPA.

What is the ABC test, and is it stricter than the IRS analysis?

The ABC test, used by California (AB5, 2019) and several other states, presumes all workers are employees unless the practice proves the worker is free from control (A), performs work outside the usual course of business (B), and is customarily engaged in an independent trade (C). This is significantly stricter than the IRS test. Practices in ABC-test states face a substantially higher burden to sustain contractor status.

How does a practice correct a misclassification discovered internally?

The IRS Voluntary Classification Settlement Program (VCSP) allows prospective reclassification at 10% of the prior year's employment tax for those workers. Apply using Form 8952 while current on all filings and not under audit.