ProAxis Resources for NJ Medical & Dental Practices

Why Medical Practices Need a Specialist CPA

High-earning NJ physicians face one of the highest combined federal and state marginal tax rates in the country — and a series of tax challenges nearly unique to the medical profession. Five mechanisms drive physician tax savings:

• Defined-benefit pension plans allow $100,000-$300,000+ in annual deductible contributions for physicians age 45+, far beyond Solo 401(k) limits.
• S-Corporation election for owner-physicians cuts self-employment tax by splitting profit into reasonable W-2 salary and distributions.
• QBI deduction phase-out management — physician income is SSTB; the 20% deduction disappears entirely above income thresholds, so income-shifting strategies become critical.
• NJ BAIT election for pass-through practices saves $10,000-$30,000+ per partner per year by bypassing the federal SALT cap.
• Section 179 + bonus depreciation on medical equipment timed strategically across years for income smoothing.

ProAxis specializes in solo physicians, group practices, multi-physician medical groups, and dental practices across NJ. Each engagement begins with a retirement plan review (most practices have a SEP-IRA when a defined-benefit plan would deduct 4-5x more), entity-structure analysis (PC vs PLLC vs Partnership of PCs), and a 3-year prior-return audit to identify missed deductions.

ProAxis has helped high-earning physicians who stacked all five mechanisms see annual tax outcomes more than $80,000 better than a no-planning baseline. Results vary by practice profile, retirement plan capacity, entity structure, and household tax position; some practices see substantially less and some see no net benefit. The catch: each mechanism requires year-round planning, not annual return preparation. By the time a physician sees their tax return in March, the prior year's planning opportunities are closed. See Disclaimer.

Practice Taxes by Career Stage

The tax issues that matter change at each stage of a clinical career. The biggest mistakes happen at the transitions — the year an associate buys in, or the year an owner sells.

The associate years

The first question is classification. In New Jersey, most associates paid on a 1099 are misclassified — the NJ ABC test presumes employment, and new NJDOL rules become operative October 1, 2026. A correctly classified W-2 associate should then focus on retirement deferrals, student-loan interest phase-outs, and tracking CME costs that an employer's accountable plan can reimburse tax-free. Physicians picking up locum tenens or moonlighting shifts on a genuine 1099 face a different stack — SE tax, quarterly estimates, and Schedule C deductions — covered in our 1099 physician and locum tenens tax guide.

Buying in

A buy-in is part purchase, part compensation change. How the deal splits between equity purchase, compensation, and goodwill changes both sides' taxes for years. The price allocation lands on Form 8594, and financing structure decides whether the new partner buys in with pre-tax or after-tax dollars. Model the deal before signing — not at filing time.

Owning

Owners carry the full stack: entity structure, S-Corp reasonable compensation, retirement plan design, equipment timing, the NJ BAIT election, and quarterly estimates. These levers interact — salary drives retirement funding, BAIT shrinks as salary rises, and QBI bands shift with both. One annual projection that models them together beats five separate decisions.

Selling

At exit, the allocation between goodwill, equipment, and receivables sets the capital-gain versus ordinary-income split. Installment structures can spread the gain across years. Clean books raise practice value directly — buyers discount what they cannot verify. Start the books cleanup two to three years before a planned sale.

Where Dental Practice Accounting Differs

Dental practices share the medical tax playbook but run on different operational data. Four differences drive the bookkeeping setup:

• Day-sheet reconciliation. Production, adjustments, and collections live in the practice-management system — Dentrix, Eaglesoft, Open Dental. The books are only reliable when the day sheet ties to bank deposits every month.
• Lab fees as a direct cost. Crown-and-bridge lab fees should be tracked per case and per provider, not buried in supplies. Lab-fee creep is the most common silent margin leak.
• Associate economics. Productivity-based pay needs per-provider production, collections, and lab-fee allocation — otherwise nobody knows whether an associate arrangement actually works.
• Equipment cycles. Chairs, CBCT, scanners, and lasers come in lumpy purchases that reward Section 179 timing decisions made before December 31.

The full dental and medical bookkeeping scope — ERA/EOB reconciliation, per-provider P&L, HIPAA-aware workflows — is on the practice bookkeeping page.

ProAxis Services for Medical & Dental Practices

Key Glossary Terms for Physicians

• QBI Deduction (Section 199A)

  20% deduction phased out for SSTB physicians above income thresholds

• S-Corporation Election

  Form 2553 election for self-employment tax savings

• Section 179 Deduction

  Immediate expensing of medical equipment

• Bonus Depreciation

  Accelerated depreciation paired with Section 179

• NJ BAIT Election

  Pass-through entity tax bypassing federal SALT cap (high-value for physician PCs)

• Cash Balance Plan

  Hybrid defined-benefit plan allowing six-figure deductible contributions

• ERA / EOB Reconciliation

  Matching insurance deposits to claims, write-offs, and patient responsibility

• HIPAA Business Associate Agreement

  Required contract when a vendor touches PHI — including some bookkeepers

• Relative Value Unit (RVU)

  Medicare fee-schedule weighting many groups also use for physician comp

• Form 8594

  Purchase-price allocation filed by both sides of a practice sale

• NJ ABC Test

  Worker-classification standard that reclassifies most 1099 associates

• Accountable Plan

  Tax-free reimbursement arrangement for CME, licensure, and mileage

Blog Posts & Guides for Medical Practice Owners

• NJ Small Business Tax Deductions 2026: Complete Guide
• S-Corp vs LLC in New Jersey: Which Structure Saves More Tax in 2026?
• NJ SALT Tax 2026 — BAIT Election & SALT Cap Workaround
• Bookkeeper vs CPA-Supervised Bookkeeping vs DIY: 2026 NJ Guide
• 1099 Dental Associates in NJ: Most Are Really W-2 Employees Under the ABC Test
• S-Corp Reasonable Salary for NJ Physicians and Dentists: 2026 Rules, Myths, and the Math
• Locum Tenens and 1099 Physician Taxes in New Jersey: SE Tax, Deductions, and Quarterly Estimates for 2026

Medical & Dental Practice FAQ

Primary Sources Worth Bookmarking

Every figure ProAxis publishes traces to a primary government source. These are the ones practice owners use most:

• IRS — Defined Benefit Plans — the rules behind cash balance plan contributions.
• IRS — S Corporation Compensation — the reasonable-compensation factors courts apply.
• IRS Publication 463 — accountable-plan rules for CME and expense reimbursements.
• IRS Form SS-8 — federal worker-status determinations.
• NJDOL — Independent Contractors & Misclassification — the ABC test and penalty schedule.
• CMS — Physician Fee Schedule — RVU values and the annual conversion factor.
• NJ Division of Taxation — BAIT/PTE — election mechanics and rates for pass-through practices.