Tax Write-Offs for New Dental Practices: The Complete List
A practical guide to tax deductions for new dental practices, covering startup costs, equipment, office, staff, and more with realistic 2026 figures.
Starting a dental practice comes with significant expenses, but many of those costs can reduce your taxable income. This guide lists the most common tax write-offs for new dental practices, with realistic 2026 figures and steps you can take this week. Remember, tax laws change, so always confirm details with a CPA who specializes in dental practices.
Startup Costs
The IRS allows you to deduct up to $5,000 in startup costs in your first year, but the deduction phases out dollar-for-dollar once total startup costs exceed $50,000. Any remaining costs are amortized over 180 months. Startup costs include market research, advertising before opening, training staff, and legal or accounting fees.
Practical step: Track every pre-opening expense, from business license fees to initial marketing materials. Keep receipts and categorize them as startup costs.
Equipment and Furniture
You can deduct the full cost of equipment and furniture in the year you place it in service using Section 179, up to a limit of $1,220,000 for 2026 (subject to phase-out above $3,050,000). Alternatively, use bonus depreciation (80% in 2026) for new equipment. Dental chairs, X-ray machines, intraoral cameras, and office furniture all qualify.
Practical step: If you plan to buy equipment, consider timing purchases before year-end to maximize the deduction. Get quotes from suppliers and compare financing options.
Office Space and Utilities
Rent, utilities, and property insurance are fully deductible. If you work from home initially, the home office deduction applies if you use a space exclusively and regularly for business. The simplified method allows $5 per square foot, up to 300 square feet, or you can use actual expenses.
Practical step: If renting, keep copies of your lease and utility bills. If using a home office, measure the space and document its exclusive use.
Staff Salaries and Benefits
Salaries, bonuses, and payroll taxes are deductible. Health insurance premiums you pay for employees are also deductible, and you may qualify for the Small Business Health Care Tax Credit if you have fewer than 25 full-time equivalents and average wages under $56,000 (2026). Retirement plan contributions, such as SEP IRAs, are deductible up to 25% of compensation (capped at $66,000 for 2026).
Practical step: Set up payroll and benefits early. Work with a payroll service to ensure accurate reporting.
Supplies and Materials
Dental supplies, including gloves, masks, anesthetics, and impression materials, are deductible as ordinary business expenses. Track inventory and purchase supplies in bulk to save money, but only deduct what you use in the tax year.
Practical step: Keep a running inventory log and reconcile it quarterly.
Marketing and Advertising
Costs for website development, SEO, social media ads, print ads, and promotional items are deductible. For new practices, expect to spend $500-$2,000 per month on marketing in the first year.
Practical step: Review your marketing expenses monthly and ensure all invoices are filed.
Professional Fees
Legal, accounting, and consulting fees are deductible. This includes fees for setting up your LLC or PLLC, drafting contracts, and tax preparation.
Practical step: Keep a folder for all professional invoices and categorize them by type.
Insurance
Malpractice insurance, business property insurance, and workers’ compensation premiums are deductible. Expect to pay $5,000-$15,000 per year for malpractice coverage, depending on your state and specialty.
Practical step: Review your insurance policies annually and compare quotes from multiple carriers.
Continuing Education
Courses, conferences, and subscriptions to dental journals are deductible, including travel and lodging if the primary purpose is educational. The IRS allows deductions for education that maintains or improves skills required in your current business.
Practical step: Register for a CE course before year-end and save all receipts for registration, airfare, and hotel.
Vehicle and Travel
If you use your car for business, you can deduct either the standard mileage rate (67 cents per mile in 2026) or actual expenses (gas, maintenance, insurance). Travel to conferences, meetings with vendors, or visiting other practices is deductible.
Practical step: Keep a mileage log in your car and record every business trip.
Technology and Software
Practice management software, patient communication tools, and accounting software are deductible. Monthly subscription costs for software like Dentrix or Eaglesoft range from $200-$500 per month. Hardware like computers and tablets also qualify for Section 179.
Practical step: List all software subscriptions and identify which are essential for operations.
Interest and Bank Fees
Interest on business loans, credit cards, and lines of credit is deductible. Bank account fees and merchant processing fees are also deductible.
Practical step: Separate business and personal finances to simplify tracking.
Repairs and Maintenance
Minor repairs to equipment or office space are deductible in the year incurred. Major improvements that add value or extend useful life must be capitalized and depreciated.
Practical step: Document all repair costs and distinguish them from capital improvements.
Table: Common Write-Offs and Typical Ranges
| Expense Category | Typical Annual Range (2026) | Deduction Type |
|---|---|---|
| Startup costs | $5,000-$50,000 | Deduct up to $5,000, amortize rest |
| Equipment | $50,000-$200,000 | Section 179 or bonus depreciation |
| Rent | $24,000-$60,000 | Fully deductible |
| Staff salaries | $100,000-$300,000 | Fully deductible |
| Supplies | $10,000-$30,000 | Fully deductible |
| Marketing | $6,000-$24,000 | Fully deductible |
| Insurance | $10,000-$20,000 | Fully deductible |
| CE and travel | $2,000-$5,000 | Fully deductible |
FAQ
Can I deduct the cost of buying an existing practice?
No, the purchase price is a capital expense, but you can depreciate the equipment and amortize the goodwill over 15 years. Allocate the purchase price among assets based on fair market value.
What if I don’t have profit in the first year?
You can carry forward net operating losses to offset future income, up to 80% of taxable income in subsequent years. This can reduce taxes when your practice becomes profitable.
Are dental loans tax-deductible?
Loan principal is not deductible, but the interest portion is. If you use the loan for business purposes, the interest is deductible as business interest.
Should I use cash or accrual accounting?
Most small practices use cash accounting, which is simpler and allows you to time income and expenses. Accrual accounting may be required if you have inventory or exceed $26 million in gross receipts (2026 threshold).
The Bottom Line
Maximizing tax write-offs requires meticulous record-keeping and proactive planning. Start by organizing your expenses into categories, using accounting software, and consulting a dental CPA before year-end. Every dollar you deduct legally is a dollar that stays in your practice for growth. Take action this week: set up a system to track all business expenses, and schedule a meeting with a tax professional to review your specific situation.