Tax Deductions for Physicians: Equipment, CME, Malpractice Insurance, and What Qualifies

A physician practice deducts ordinary and necessary business expenses under IRC 162, the same baseline rule every business runs on, but the specific items that show up on a medical practice’s return, exam tables and diagnostic equipment, continuing medical education, malpractice premiums, licensing fees, have their own rules for timing and substantiation that generic small-business tax guidance doesn’t cover. Getting the equipment deduction timing right (expense it now under Section 179 or bonus depreciation, or capitalize and depreciate it over years) and getting the CME and travel substantiation right are the two areas where physician returns most often leave money on the table or, worse, claim a deduction that doesn’t survive an exam.

Section 179 or bonus depreciation: how does it work?

Both provisions let a practice deduct the full cost of qualifying equipment in the year it’s placed in service instead of depreciating it over its useful life, but they work through different mechanisms and have different limits.

• Section 179 allows an election to expense up to a set annual dollar limit ($2,500,000 for 2025, indexed annually, phased out dollar-for-dollar once total qualifying purchases for the year exceed $4,000,000) for new or used tangible personal property used more than 50% for business. The 179 deduction is capped at the practice’s taxable income for the year (no deduction that creates or increases a loss), with any excess carried forward.
• Bonus depreciation under IRC 168(k) allows a percentage deduction (100% for qualifying property placed in service after January 19, 2025, following the OBBBA’s restoration of full bonus depreciation, after several years at reduced percentages under the TCJA phase-down) on new or used property with no annual dollar cap and no taxable-income limitation, meaning it can create or increase a net operating loss. For a practice weighing a larger building purchase alongside its equipment, see our cost segregation guide on accelerating the building’s own depreciation.
• In practice, most practices use Section 179 first (it offers more flexibility, since the practice can choose which assets and how much to expense) and let bonus depreciation pick up anything left over or anything where the practice wants the deduction regardless of the income limitation.
• Both provisions require the equipment to be placed in service, not merely ordered or paid a deposit on, by year-end. A digital X-ray unit ordered in November but not installed and operational until the following February is a next-year deduction no matter when the invoice was paid.
• Qualifying property includes diagnostic and treatment equipment (ultrasound, EKG, spirometry, in-office lab analyzers), furniture and exam room fixtures, computers and EHR server hardware, and qualified improvement property to leased or owned clinical space (interior, non-structural improvements to a nonresidential building). It doesn’t include the building itself or land, both of which follow regular MACRS depreciation over much longer recovery periods (39 years for nonresidential real property).

What CME, licensing, and professional costs are deductible?

Continuing medical education and the credentials that keep a physician licensed to practice are core, well-established business deductions, but the line between deductible professional development and non-deductible personal education matters.

• CME course fees, exam and licensing board fees, state medical license renewal, DEA registration, hospital privileging fees, and board certification and maintenance-of-certification fees are all deductible as ordinary business expenses under IRC 162, because they maintain or improve skills required in the physician’s existing profession.
• Travel to attend CME conferences is deductible under the same travel-expense rules that apply to any business trip: airfare, lodging, and 50% of meals (100% in narrow circumstances tied to employer-provided meals rules that rarely apply to a conference) under IRC 274. The trip has to have a genuine business purpose, and if it’s combined with personal time (a CME conference in a resort destination with a few extra vacation days tacked on), only the business-day portion of travel costs is deductible; the personal days’ lodging and meals are not.
• Education that qualifies the physician for a new specialty or credential (rather than maintaining the existing one) is treated differently. Costs to become licensed in a new profession or to meet the minimum educational requirements of the current one are not deductible under Treas. Reg. 1.162-5; CME that sharpens skills within the physician’s existing specialty is deductible, but a fellowship or program that qualifies the physician for a distinct new specialty designation is a closer call that depends on the facts.
• Professional association dues (AMA, specialty society membership), subscriptions to medical journals, and malpractice insurance premiums are all deductible in the year paid if the coverage period is a year or less; multi-year prepaid premiums are deducted ratably over the coverage period rather than in the year of payment.

What about a home office for charting and admin work?

Physicians who complete charting, dictate notes, or handle administrative work from a home office frequently assume the space qualifies for a home-office deduction the same way it would for a fully remote worker, and that assumption is usually wrong for an employed or practice-based physician.

• The home-office deduction under IRC 280A requires the space be used regularly and exclusively for business, and, for an employee, that the exclusive-use space be for the convenience of the employer, a standard that’s difficult to meet when the physician also has an office or workspace available at the practice or hospital.
• A physician who is a W-2 employee of a hospital or a large group generally cannot claim a home-office deduction at all under current law; the Tax Cuts and Jobs Act suspended the miscellaneous itemized deduction for unreimbursed employee business expenses (including a home office), and the One Big Beautiful Bill Act made that suspension permanent for W-2 employees.
• A physician who owns their practice (through the PC or PLLC discussed in our entity structure guide) and genuinely charts, bills, and manages the business from a dedicated, exclusively-used home space has a stronger claim, since the deduction runs through the business return rather than as an employee itemized deduction. Even then, exclusive use is a real requirement: a home office that doubles as a guest room or family space at any point during the year fails the test entirely, not partially.
• The safer and more common approach for employed physicians who do legitimate off-site charting is for the employer or practice to provide a stipend or reimburse home-office equipment through an accountable plan, which is deductible to the practice and not taxable to the physician, rather than the physician attempting a direct home-office deduction that’s likely disallowed on exam.

What physician costs are commonly missed or misclaimed?

Several categories recur often enough on physician returns to call out specifically, in both directions, deductions that are commonly missed and deductions that are commonly claimed incorrectly.

• Student loan interest on educational debt is deductible up to $2,500 per year under IRC 221, but the deduction phases out at relatively low income levels ($100,000 to $115,000 MAGI for single filers, roughly double for joint filers, indexed periodically) that most attending physicians exceed almost immediately after residency, making the direct deduction largely unavailable once a physician is out of training and into practice-level income. Loan forgiveness programs (Public Service Loan Forgiveness for employed physicians at qualifying nonprofit or government facilities) are a separate and often more valuable strategy than the interest deduction itself.
• Cell phone and internet used for practice purposes (answering patient calls, accessing the EHR remotely, telehealth) are deductible to the extent of business use. A physician who uses a personal phone for both patient calls and personal use needs a reasonable business-use percentage, not a blanket 100% deduction, unless the practice provides a dedicated business line.
• Uniforms and scrubs are deductible only if not suitable for everyday wear and required for the job; plain scrubs generally qualify, but this is a narrower category than physicians often assume, and general business-casual clothing worn in an office-based practice does not qualify even if it’s “for work.”
• Vehicle expenses for travel between practice locations, hospital rounds at a facility other than the primary office, or home visits are deductible under the standard mileage rate or actual expense method, but commuting from home to the primary, regular place of business is never deductible, a rule that catches physicians who split time between an office and a hospital and assume all of that driving counts.
• Locum tenens and moonlighting expenses run through a separate self-employment schedule with their own deduction set, covered in detail in our locum tenens tax obligations guide, since the deduction rules for 1099 income differ from the W-2 employee context in meaningful ways, particularly around travel and the tax-home analysis.

How should a practice document this to survive an exam?

The IRS applies more scrutiny to physician returns than to many small businesses simply because the dollar amounts involved (six-figure equipment purchases, five-figure CME and travel budgets) are large enough to matter, and the substantiation bar is the same one that applies to any business: contemporaneous records, not reconstructed ones.

• Keep invoices and placed-in-service dates for every equipment purchase claimed under Section 179 or bonus depreciation; the placed-in-service date, not the purchase date, controls the deduction year.
• Keep CME conference registration confirmations, agendas, and a record of which days were business versus personal if the trip was mixed, since IRC 274(d) imposes heightened substantiation requirements for travel and requires records showing the amount, time, place, and business purpose of each expense.
• Track home-office square footage and exclusive-use status with photos and a floor plan if the deduction is claimed at all, given how narrow the qualifying fact pattern is for a practicing physician.
• Reconcile mileage logs contemporaneously (an app or a simple log at the time of travel) rather than reconstructing a year’s driving from memory at filing time, which is the single most common reason a vehicle expense deduction gets disallowed on exam.

What should a physician do before filing?

Run every equipment purchase through the placed-in-service test before assuming it’s this year’s deduction, and choose Section 179 versus bonus depreciation based on the practice’s taxable income position for the year, not by default. Separate CME and travel costs into clean business-day versus personal-day buckets at the time of the trip, not at tax time. And before claiming a home-office deduction, confirm the physician is a business owner (not a W-2 employee) and that the space genuinely meets the exclusive-use standard, because this is the deduction most likely to draw a question if the return is ever examined.

Related guides:

• Medical practice entity structure: PC, PLLC, and S-corp election, the ownership structure these deductions flow through
• Medical practice bookkeeping: chart of accounts and revenue recognition, where equipment and expense accounts sit in the books
• Employee benefits for medical practices, the benefits-side deductions that pair with these
• Locum tenens tax obligations: 1099 income and travel deductions, for physicians deducting expenses against 1099 income specifically
• Starting or buying a medical practice: startup costs, for first-year equipment and startup expense timing

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.