By Julia W.
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When hiring for your private practice, deciding between a 1099 independent contractor and a W-2 employee is critical. This choice impacts taxes, legal risks, and how you operate day-to-day. Here’s the key difference:
Misclassifying workers can lead to hefty IRS penalties, especially in healthcare. Always align the worker’s actual role with their classification to avoid legal trouble.

The IRS doesn’t rely on job titles or contract terms to classify workers – it focuses on the actual working relationship. As the IRS explains:
"An employee is generally considered anyone who performs services, if the business can control what will be done and how it will be done. What matters is that the business has the right to control the details of how the worker’s services are performed."
To determine this, the IRS uses three categories known as the Common Law Rules:
The IRS considers all three factors collectively. For therapy practices, it’s particularly important to note that provisionally licensed clinicians – like LSWs, LPCs, and other roles working toward full licensure – require clinical supervision. This supervision necessitates classifying them as employees, regardless of what the contract states.
If you’re uncertain about how to classify a worker, you can submit Form SS-8 to the IRS for an official determination. Although this process can take up to six months, it provides a clear, documented answer.
Understanding these definitions is essential for ensuring compliance and selecting the correct forms to document worker relationships.
Once worker classifications are clear, the next step is using the correct tax forms to document compensation. Beyond the W-2 and 1099-NEC forms, which are commonly discussed, several other forms are vital during onboarding:
| Form | Who Completes It | Purpose | When It’s Used |
|---|---|---|---|
| Form W-2 | Issued by the practice | Reports wages and taxes withheld | Annually, by January 31 |
| Form 1099-NEC | Issued by the practice | Reports nonemployee compensation; threshold is $2,000 starting 2026 | Annually, by January 31 |
| Form W-4 | Completed by the employee | Determines federal income tax withholding | At the start of employment |
| Form W-9 | Completed by the contractor | Provides Taxpayer Identification Number (TIN) | Before the contractor’s first payment |
One frequent mistake is waiting until the end of the year to gather contractor information. Always ensure you collect a signed Form W-9 before issuing the first payment to avoid the 24% backup withholding penalty.

W-2 Employee vs. 1099 Contractor: Key Differences for Private Practices
The difference in tax responsibilities is one of the clearest ways to distinguish between W-2 employees and 1099 contractors.
For W-2 employees, the practice handles tax withholding, covering 7.65% of wages for FICA taxes (Social Security and Medicare). Additionally, the practice pays for unemployment insurance, workers’ compensation, and other required benefits.
In contrast, 1099 contractors are responsible for paying the full 15.3% self-employment tax themselves. Because of this, contractors often charge higher rates to account for their tax burden and other expenses. It’s important to note the risks of misclassifying workers – penalties for doing so can be steep. As Cindy Trawinski, PsyD, highlights:
"The supposed ‘savings’ of misclassification is a trap. Doing it right costs less in the long run."
Beyond tax responsibilities, the level of control over a worker’s daily tasks further separates these classifications.
Tax obligations aside, how much control a practice exerts over a worker’s schedule, methods, and policies plays a significant role in determining classification. This control also impacts how a private practice operates day-to-day.
For W-2 employees, the practice has full authority to define work expectations. This includes setting specific hours, assigning clients, requiring the use of certain tools (like an EHR system), mandating attendance at team meetings, and enforcing deadlines for documentation. This level of oversight fosters consistency across the practice and ensures a unified experience for clients. However, it also places legal responsibility for the employee’s actions on the practice.
On the other hand, a 1099 contractor operates with much more independence. They decide their own schedule, use their own tools, and apply their professional judgment to manage their work. The practice can outline the desired outcomes but cannot dictate how the contractor achieves them. As Donna Ballman, an employment attorney, puts it:
"Independent contractors do the work where, when and how they choose. Nobody tells them what order to do the job in, what hours to work, or when they can take off."
This distinction becomes even more critical when dealing with provisionally licensed clinicians. If a therapist requires clinical supervision – such as an LSW, AMFT, or LPC working toward full licensure – this supervision counts as behavioral control. As a result, these individuals must almost always be classified as W-2 employees, regardless of what their contract states. Khaled Albadawi, CPA, underscores this point:
"In every single IRS determination letter available for therapist settings, the IRS concluded that therapists should not have been classified as 1099 contractors."
These differences affect everything from hiring strategies to daily operations, making it essential to understand the implications for your practice.
Here’s a side-by-side look at the key contrasts between W-2 employees and 1099 contractors:
| Factor | W-2 Employee | 1099 Independent Contractor |
|---|---|---|
| Tax Responsibility | Practice pays 7.65% FICA; withholds employee share | Contractor pays full 15.3% self-employment tax |
| Reporting Form | Form W-2 (due January 31) | Form 1099-NEC (due January 31; $2,000 threshold in 2026) |
| Scheduling | Practice sets hours and minimum caseloads | Contractor sets own hours and availability |
| Clinical Methods | Practice can mandate specific protocols and tools | Contractor uses independent professional judgment |
| Equipment & Tools | Provided by the practice (EHR, office, supplies) | Contractor provides their own |
| Benefits | Eligible for health insurance, PTO, 401(k) | Responsible for own benefits and insurance |
| Client Ownership | Clients belong to the practice | Contractor typically brings or manages their own clients |
| Supervision | Required for provisionally licensed staff | Generally incompatible with clinical supervision |
If the day-to-day reality of your working relationship aligns more with the W-2 model – regardless of how the contract is written – the IRS will prioritize the actual arrangement over the paperwork.
The type of workers you hire – W-2 employees or 1099 contractors – plays a big role in determining your office space strategy. For W-2 employees, you’re obligated to provide the essentials: office space, apps and equipment, and utilities. This setup clearly aligns with an employment relationship. Cindy Trawinski, PsyD, explains:
"If you’re providing the office, computer, and practice management software, this points to employee [status]."
On the other hand, 1099 contractors operate differently. They are expected to supply their own equipment and either work out of their own space or rent one at market rates through a separate rental agreement. As Cindy Trawinski notes:
"A therapist can only be classified as an independent contractor if they… provide their own equipment and supplies [and] rent office space from you on a pure office rental basis."
These nuances make flexible space arrangements essential, particularly for practices that combine W-2 employees with 1099 contractors.

Balancing space needs for a mixed team of W-2 employees and 1099 contractors can get tricky. That’s where Humanly steps in, offering therapy and wellness spaces tailored to your needs. You can book rooms by the hour ($2.50–$20.50/hour), by the day ($50/day), or on a monthly basis. These spaces come fully furnished, with waiting areas and utilities included.
For W-2 employees, this flexibility allows you to align space usage with their shifts, avoiding the costs of full-time leases. For 1099 contractors, Humanly’s hourly and daily rental options make it easy for them to rent space independently. This keeps the relationship strictly landlord-tenant, reducing the risk of misclassification. Considering that W-2 staff can cost 20–30% above their base salary when you factor in payroll taxes and insurance, scaling space to match your actual workforce can significantly cut overhead while avoiding long-term commitments.
Your choice of space arrangements also carries financial and tax implications.
For practices with W-2 employees, rent, utilities, and office expenses are straightforward business deductions. These costs fall on the practice, as the IRS expects.
For 1099 contractors, the rules are different. If contractors rent space from you at market rates, they can deduct those rental costs on Schedule C as business expenses. This deduction helps offset their 15.3% self-employment tax. However, offering free space to a contractor can imply financial control, which could reclassify the contractor as an employee. This misstep could lead to back taxes, penalties, and interest.
The solution? Keep rental agreements separate from clinical service contracts. Clearly document market-rate rent and maintain a clear landlord-tenant relationship. This paper trail protects both you and your contractors if the IRS ever scrutinizes the arrangement.
How much control do you have over a worker’s schedule, client assignments, and delivery of care? This is the starting point when deciding between a 1099 independent contractor and a W-2 employee. The IRS looks at the actual working relationship, not just the contract title. For example, therapists who require clinical supervision must be classified as W-2 employees – no exceptions – because supervision inherently falls under employer control.
You’ll also need to evaluate administrative capabilities and financial implications. W-2 employees typically cost an additional 20–30% due to taxes and benefits, while 1099 contractors handle their own taxes, including the full 15.3% self-employment tax. However, a 1099 arrangement is only legally valid if the worker is genuinely independent – running their own business, using their own tools, and managing their own client base.
State laws add another layer of complexity. Certain states, such as California, Massachusetts, and New Jersey, enforce the ABC Test, which presumes workers are employees unless you can meet strict criteria proving otherwise. Always review your state’s specific regulations before making hiring decisions.
Lastly, ensure your documentation accurately reflects the worker’s classification.
The key to proper classification lies in your documentation. A true 1099 contractor should have their own business entity, maintain malpractice insurance, and shoulder real financial risks. They should also market their services independently rather than relying solely on your practice for work.
If your documentation doesn’t match the reality of the working relationship, you risk severe penalties. Misclassifying workers can lead to over $50,000 in back taxes, interest, and penalties. If you’re uncertain about a worker’s status, consider submitting IRS Form SS-8. This form allows you to request a formal determination, though the process can take six months or more.
If you’ve already misclassified workers, the Voluntary Classification Settlement Program (VCSP) offers a way to correct the issue. By filing Form 8952, you can reclassify workers going forward while paying only about 10% of one year’s employment taxes – and avoid a deeper IRS audit. Taking action early is almost always less expensive than waiting for the IRS to step in.
Choosing between W-2 and 1099 classifications is primarily about compliance, not cost savings. The IRS has consistently ruled against 1099 classifications in therapist settings. Use W-2 status if you control the worker’s schedule or if clinical supervision is required. Reserve 1099 status for truly independent workers who bring their own tools, manage their own clients, and take on financial risks. When in doubt, consult an employment attorney familiar with behavioral health laws in your state. That proactive step can save you from costly penalties down the road.
No, you can’t simply opt for a 1099 classification to save on payroll taxes. The IRS decides whether someone is an employee or an independent contractor based on the nature of the working relationship – focusing on factors like control and independence – not the wording in your agreement. Misclassifying an employee as a 1099 contractor can lead to serious consequences, including back payroll taxes, interest, penalties, and even legal trouble. A 1099 classification applies to independent contractors, while W-2 is for employees working under your supervision.
Therapist supervision typically points to a W-2 employee classification due to the behavioral control it demonstrates. When a practice mandates specific treatment approaches, enforces clinical policies, or supervises session techniques, the IRS views this as exercising control over how the work is carried out. This level of oversight clashes with the autonomy expected from an independent contractor.
When renting office space to a 1099 contractor, it’s critical to ensure they remain independent to avoid any misclassification risks. They should operate their own business, use their own tools and systems, and work without being subject to your control. If they depend on your practice’s procedures, forms, or are presented as part of your team in any way, the IRS might still classify them as an employee, even if there’s a rental agreement in place.