Occupational Therapist / Speech Therapist Tax Playbook 2026

An S-Corp election allows the owner to split income between a reasonable salary (subject to 15.3% FICA on the first $176,100 in 2026) and distributions (not subject to FICA). For a business owner with $200,000 in net profit paying an $80,000 salary, the annual SE tax savings are approximately $15,500–$18,500. The S-Corp must file Form 2553 within 75 days of formation.

The §199A deduction allows pass-through business owners to deduct up to 23% of qualified business income (QBI) from taxable income (increased from 20% under OBBBA). For taxpayers above $403,500 (MFJ) in 2026, the deduction is limited to the greater of 50% of W-2 wages or 25% of W-2 wages plus 2.5% of qualified property. Specified Service Trades or Businesses (SSTBs) phase out above this threshold.

Self-employed professionals can establish a Solo 401(k) (up to $70,000 in 2026), a SEP-IRA (25% of net self-employment income up to $70,000), a SIMPLE IRA ($16,500 + $3,500 catch-up), or a Defined Benefit Plan (up to $280,000+ depending on age). The Solo 401(k) is the best option for most self-employed professionals because it allows the highest contributions relative to income.

Self-employed professionals who use a dedicated home office space exclusively and regularly for business qualify for the home office deduction under §280A. The deduction is calculated as a percentage of home expenses (mortgage interest, utilities, insurance, depreciation) equal to the office square footage divided by total home square footage. The simplified method allows $5/sq ft up to 300 sq ft ($1,500 maximum).

Self-employed professionals can deduct vehicle expenses using either the standard mileage rate (70 cents/mile in 2026) or actual expenses. Vehicles with a GVWR over 6,000 lbs qualify for §179 expensing (up to $30,500 for heavy SUVs) and bonus depreciation without luxury auto limits. A mileage log must be maintained for either method. The vehicle must be used more than 50% for business to qualify for accelerated depreciation.

The Augusta Rule (§280A(g)) allows homeowners to rent their primary or secondary residence to their business for up to 14 days per year. The rental income is completely tax-free to the homeowner, and the business deducts the rent as a business expense. At $2,000–$3,000/day for 14 days, this strategy generates $28,000–$42,000 of tax-free income while the business deducts the same amount.

Cost segregation reclassifies building components into shorter depreciation categories eligible for bonus depreciation. For a $1M commercial property, cost segregation typically identifies $150,000–$250,000 of accelerated depreciation, generating $60,000–$100,000 in first-year deductions at the 100% bonus depreciation (restored by OBBBA for property placed in service after Jan 19, 2025) rate in 2026. A cost segregation study costs $5,000–$15,000 and typically has a 10:1+ ROI.

A sole proprietor pays self-employment tax (15.3%) on all net profit. An S-Corp owner pays FICA only on their reasonable salary, saving SE tax on distributions. For a business with $200,000 in net profit, the S-Corp saves $15,000–$20,000/year in SE tax. The S-Corp has additional costs (payroll, bookkeeping, tax preparation) of $2,000–$4,000/year, making the break-even point approximately $40,000–$50,000 in net profit.

Self-employed professionals must make quarterly estimated tax payments by April 15, June 15, September 15, and January 15. The safe harbor is 100% of prior year tax (110% if prior year AGI exceeded $150,000). Failure to pay sufficient estimated taxes results in an underpayment penalty under §6654. S-Corp owners should adjust their payroll withholding to cover their estimated tax liability.

Ordinary and necessary business expenses under §162 include: professional licenses and continuing education, professional liability insurance, office supplies and equipment, software subscriptions, marketing and advertising, professional association dues, business travel (flights, hotels, 50% of meals), and home office expenses. Personal expenses are not deductible even if they have some business connection.

Self-employed professionals can deduct 100% of health insurance premiums (for themselves, their spouse, and dependents) as an above-the-line deduction under §162(l). This deduction reduces AGI and is available even if the taxpayer does not itemize. The deduction is not available if the taxpayer is eligible for employer-sponsored health insurance through a spouse’s employer. S-Corp owners must include premiums in W-2 wages before claiming the deduction.

The 3.8% NIIT applies to net investment income (interest, dividends, capital gains, rental income, passive business income) for taxpayers with MAGI above $200,000 (single) or $250,000 (MFJ). Active business income and wages are not subject to the NIIT. Self-employed professionals who invest in rental properties or passive businesses should plan for the NIIT impact on their investment income.

Occupational therapists often form a Professional Limited Liability Company (PLLC) or Professional Corporation (PC) to comply with state licensing rules. From a federal tax perspective, both entity types can elect S-Corporation status under IRC Subchapter S to reduce self-employment taxes. The key implementation step involves timely filing Form 2553 by the 15th day of the third month of the tax year. Choosing the right entity also involves assessing state-level compliance and professional licensing requirements. Proper structuring can facilitate retirement plan implementations and maximize deductions such as the self-employed health insurance deduction under §162(l).

Occupational therapists must maintain contemporaneous records including receipts, invoices, mileage logs, and appointment calendars to substantiate business expenses. For deductions like the home office or vehicle expenses, detailed records showing exclusive and regular use are critical. Additionally, documentation supporting reasonable compensation for S-Corp owners should reflect industry norms. The IRS often focuses on related-party transactions and excessive or inadequate owner compensation, so maintaining formal payroll records and board resolutions is advisable. Retaining these records for at least seven years aligns with IRS audit windows and potential statute of limitations extensions.

For a practice commencing operations in 2026, the S-Corp election must be filed on Form 2553 by March 15, 2026, which is the 15th day of the third month of the tax year. Timely filing ensures the election applies to the entire 2026 tax year. If missed, the election can be requested retroactively only if the IRS grants relief under the late election provisions. Missing this deadline means default C-Corporation tax treatment, which may result in double taxation and lost self-employment tax advantages.

IRS audits in this sector often arise from large or disproportionate deductions relative to reported income, especially high vehicle, home office, or professional expense claims. S-Corp returns with questionable reasonable compensation or inconsistent payroll can also prompt scrutiny. To minimize risk, occupational therapists should ensure deductions are ordinary and necessary per §162, maintain robust documentation, and apply consistent accounting methods. Engaging a qualified tax professional to review returns before filing and responding promptly to IRS notices further reduces audit risk.

For occupational therapists operating as S-Corp shareholders, the self-employed health insurance deduction under §162(l) is only allowable to the extent of the shareholder-employee's W-2 wages from the S-Corp. The deduction is generally claimed on the shareholder’s Form 1040 rather than the S-Corp return. The S-Corp itself deducts the health insurance premiums as wages if included in Box 1 of Form W-2. Therefore, careful payroll reporting is essential to maximize this deduction while complying with IRS rules and avoiding double benefits.

Yes, an occupational therapist can maintain both a Solo 401(k) and a SEP IRA, but total contributions across both plans are subject to aggregate limits under IRC §415(c). For 2026, the combined employee deferral limit is $24,500 with an additional $7,500 catch-up if age 50 or older. Employer contributions are limited to 25% of compensation, with total contributions not exceeding $66,000, or $73,500 including catch-up contributions. Strategic coordination of contributions between plans can optimize tax deferral while adhering to these statutory limits.

When advising clients, emphasize that an S-Corp election can reduce self-employment taxes by distinguishing salary from distributions, but requires reasonable compensation per IRS guidelines. Highlight the increased administrative responsibilities such as payroll tax filings, Form 1120-S returns, and maintaining corporate formalities. Discuss the need for accurate recordkeeping and potential costs associated with compliance. Also, explain how this election may impact eligibility for deductions like the self-employed health insurance deduction under §162(l) and the Qualified Business Income deduction under §199A. Clarifying these points ensures clients have realistic expectations about tax savings and ongoing obligations.