Dental Equipment Financing: Buy, Lease, or Defer?

Over a career in practice ownership, you'll spend $300,000–$800,000 or more on equipment. A CBCT scanner, digital workflow system, laser, and operatory refresh add up fast. How you finance each purchase — and when — has a surprisingly large effect on after-tax cost. A $150,000 equipment purchase timed well and financed correctly can save $40,000–$55,000 in federal taxes compared with the same purchase mishandled.

This guide covers the three acquisition paths, the 2026 tax rules that govern each, and how to make the buy-vs-lease decision with your actual numbers.

The three ways to acquire dental equipment

1. Cash purchase

You pay from practice cash or personal savings. You own the asset immediately and can take the full Section 179 or bonus depreciation deduction in year one — the largest available tax benefit. The downside: it depletes reserves. Most practice owners use equipment loans instead, capturing the same deduction without tying up capital.

2. Equipment loan (finance lease or secured loan)

You borrow to buy and own the asset from day one. You still qualify for full first-year depreciation even before you've finished paying — the deduction is taken in the year equipment is placed in service, not when the loan is paid off. You also deduct interest payments annually. Equipment loans for creditworthy dental practices typically run 6–9% APR in 2026; many vendors offer promotional 12–24-month 0% financing on major purchases.

3. Operating lease

You never own the equipment — you rent it for a defined term (typically 36–60 months), then return, upgrade, or purchase at fair market value. Monthly payments are deductible as operating expenses. No depreciation calculation required, no balloon payment. The tax math is simpler; the total cost is usually higher. Operating leases make more sense for equipment that becomes obsolete quickly (intraoral scanners, software-heavy CAD/CAM systems) and less sense for equipment with long useful lives (chairs, delivery units, sterilizers).

2026 tax rules: Section 179 and bonus depreciation

Section 179

Section 179 lets you deduct the full cost of qualifying property in the year it is placed in service, rather than depreciating it over 5–7 years under MACRS.¹ For dental equipment, this means a $150,000 scanner purchase reduces your taxable practice income by $150,000 the year you plug it in.

• 2026 deduction limit: $2,560,000 — far above what any single dental practice will spend on equipment in a year³
• Phase-out: The deduction reduces dollar-for-dollar once total equipment placed in service exceeds $4,090,000
• Income limit: Section 179 cannot create a net operating loss. If your practice nets $350,000, you can't deduct more than $350,000 under Section 179 in that year — any excess carries forward to the following year.

Bonus depreciation

The One Big Beautiful Bill Act (OBBBA), enacted July 2025, permanently restored 100% first-year bonus depreciation for qualified property placed in service after January 19, 2025.² Unlike Section 179, bonus depreciation can create a net operating loss — and that loss can be carried back two years or forward indefinitely, potentially generating a refund on prior-year taxes paid.

How Section 179 and bonus depreciation work together

You apply Section 179 first, then bonus depreciation on any remaining basis. For most dental practices spending under $500,000 on equipment in a year, the practical result is identical: full deduction in year one. The distinction matters only when you want to generate a net operating loss (bonus depreciation does this; Section 179 alone doesn't) or in unusual high-spend scenarios.

The buy vs. lease tax comparison

A $150,000 CBCT scanner. Practice owner at 37% federal marginal rate.

The loan wins on tax timing: $55,500 back in year one vs. $13,800. At a 5% discount rate, front-loading the deduction is worth roughly $15,000–$20,000 in present-value terms on a $150,000 piece of equipment. Across the equipment spend of a full practice career, consistently choosing the right path on each purchase adds up to six figures in cumulative tax savings.

The operating lease wins on flexibility, not economics. If a newer technology will replace the equipment in 3–4 years, or if you want predictable payments without a balloon, the lease trades away tax efficiency for those benefits. That can be a rational choice — just make it deliberately, not by default.

Timing: when you buy matters almost as much as how

Section 179 and bonus depreciation deductions are taken in the year equipment is placed in service — meaning operational and usable, not merely ordered or delivered. Two strategic implications:

High-income years are the best time to buy. If your practice is having a $600,000 net income year — a partner left, you absorbed a patient base, you added associates — a $180,000 equipment purchase reduces taxable income to $420,000. The deduction offsets income that would otherwise be taxed at 37%, saving $66,600 in federal tax alone. In a normal $350,000 year, the same purchase saves $66,600 minus the incremental value of the lower bracket — still substantial, but the high-income year is where the deduction is most efficient.

Year-end timing is a legitimate planning tool. If you've identified an equipment need but planned to buy in Q1 of next year, consider whether accelerating into December changes your tax picture. "Placed in service" means operational before December 31 — a scanner installed December 20 qualifies for the full year's deduction. Many dental equipment vendors time year-end promotions exactly for this reason.

Don't buy equipment you don't need for a tax deduction. The math doesn't work. Spending $100,000 to save $37,000 in taxes costs you $63,000 net. The deduction is a benefit on a purchase you were making anyway — not a reason to make the purchase.

How equipment debt affects practice metrics

Equipment loans appear on your balance sheet and factor into metrics that matter when you seek additional financing or eventually sell:

• Debt Service Coverage Ratio (DSCR): SBA lenders want DSCR above 1.25×. If your adjusted EBITDA is $400,000 and you carry $80,000/year in equipment loan payments, your margin shrinks. Multiple equipment loans layered on top of practice acquisition debt can push you below SBA thresholds, affecting your ability to refinance or take on a partner buy-in loan.
• Practice EBITDA at sale: Equipment loan principal repayments are not operating expenses — they don't reduce EBITDA. Your sale valuation multiple is unaffected. But a buyer reviewing your financial statements will see the debt and factor it into their debt-assumption calculus.
• Cash available for distributions and retirement: Monthly equipment payments reduce what you can pull as owner distributions or contribute to a solo 401(k) or cash balance plan. Model this before adding a loan to an existing debt stack.

The decision framework

Run through these questions before signing anything:

1. Do I actually need this equipment, or is this a want? Revenue per patient improves with certain technology; not all equipment pays for itself in clinical production.
2. What is my income this year vs. next? If this year is unusually high, buy now. If next year will be higher (adding an associate, opening a second location), defer.
3. What does my debt service picture look like? If you're near your DSCR ceiling, consider leasing to avoid adding to the debt load.
4. How fast will this technology be obsolete? Equipment with a 10+ year useful life (chairs, sterilizers, CBCT) — buy. Equipment driven by rapidly evolving software (intraoral scanners, CAD/CAM) — lease or buy with a short payback period in mind.
5. What's the financing offer actually costing me? Promotional 0% financing for 24 months has zero cost. A 9% equipment loan on a piece of equipment you plan to upgrade in 3 years has real interest expense — model it.