The Entity Decision Costing Law Firm Owners $65,000 a Year (And the Retirement Move That Could Fix It)
You're a law firm partner earning $520,000 a year. Your practice is profitable. Your clients respect you. You max your 401(k) at $23,500, pay your quarterly estimates on time, and send everything to your CPA every March.
And every April, you write a check to the IRS for $92,000 and wonder what your accountant actually does the other eleven months.
Here's what nobody told you: your $92,000 check isn't the result of earning too much. It's the result of an entity structure your practice outgrew five years ago, combined with a retirement strategy that stops at "max the 401(k)." Fix those two things, and that check could drop by $65,000 or more — legally, sustainably, and without touching your take-home pay.
The Entity Trap That's Quietly Costing You $30,000+ a Year
Most law firms operate as an S-Corp or a PLLC. You take a reasonable salary (say $150,000), pay payroll taxes on it, and take the rest as distributions. Standard setup. Your CPA signed off on it years ago.
Here's what that standard setup is hiding:
The reasonable salary squeeze. The IRS wants attorneys taking a higher salary than, say, a retail franchise owner — because legal services are personal services. If you're paying yourself $90,000 and pulling $350K in distributions, you're a walking audit target. Settle at $150K? You're now paying an extra $11,000+ in payroll taxes on that higher salary.
The QBI phaseout. The Section 199A qualified business income deduction — the 20% deduction that was the crown jewel of the TCJA — is completely phased out for specified service trades or businesses (including law firms) once your taxable income exceeds roughly $500,000 (married filing jointly). That means you get zero. Zero deduction. Zero benefit. And nobody told you it was gone.
The SALT cap wallop. You're capped at $10,000 in state and local tax deductions. If you live in a high-tax state and practice there, you're getting double-taxed on every dollar above that cap with no offset.
Combine those three friction points and you're losing between $28,000 and $36,000 a year purely from entity structure, before you even touch your retirement plan. This is the same problem that makes a poorly structured multi-entity setup so expensive — but for law firms, the personal service income rules make it even worse.
The Structure Fix: Separating the Lawyer from the Law Firm
The most effective entity strategy for law firm owners isn't a single entity — it's two.
Entity 1 — Your Professional Corporation (PC or PLLC). This entity owns your professional services. It collects fees directly tied to your legal expertise. It employs you as W-2 staff.
Entity 2 — Your Management Company (an LLC or S-Corp). This entity owns everything else — the lease, the support staff, your paralegals, your technology systems, the office equipment, your brand and marketing. It charges your PC a management fee.
Why two entities? Because the PC's income is "personal service income" that's subject to higher employment taxes and QBI phaseouts. The management company's income — 25–35% of the firm's total revenue — isn't. That income flows through the management company and qualifies for a partial QBI deduction, avoids the SALT cap issue for your entity-level structure, and reduces the payroll tax burden on your personal salary.
The result? A law firm partner earning $520K who shifts 30% of billings to a management company saves roughly $18,000 in employment taxes and regains access to $14,000+ in QBI deduction value.
The Retirement Turbocharge Your CPA Never Mentioned
Now the bigger number.
Your 401(k) lets you put away $23,500 in 2026. Maybe $31,000 with catch-up. That saves you roughly $8,500 in taxes at your marginal rate. Not nothing. But it's barely scratching the surface.
A cash balance plan — also called a defined benefit plan for professionals — lets you shelter dramatically more because it's designed for high earners who got a late start on retirement savings. Instead of a contribution limit measured in thousands, your limit is whatever actuary says you need to fund a retirement income target. It's the same mechanism that makes defined benefit plans so powerful for high-income doctors and business owners.
For a 50-year-old law firm partner earning $520K:
- Max out the 401(k): $23,500
- Add a cash balance plan: $170,000
- Total tax-deferred contributions: $193,500
- Total tax saved at 35% marginal rate: $67,725
That is roughly six times what your current 401(k) saves you — from the same income stream.
A 45-year-old attorney in the same practice can shelter roughly $130,000. A 55-year-old partner can push $210,000. The contribution scales with age because the IRS recognizes that older professionals need to "catch up" more aggressively.
Cash balance plans also let you customize your retirement target, choose the investment risk profile, and — critically — integrate with your existing 401(k) so you're not managing separate accounts. Your employees must be included (with some flexibility on benefit design), but the owner-directed nature of the plan means the lion's share of the benefit lands where you need it most.
Putting It Together: The Total 2026 Savings Picture
Let's run the numbers for a San Diego-based law firm partner, age 50, earning $520K from a practice with 5 employees and $1.1M in gross revenue.
| Strategy | Tax Savings |
|---|---|
| Entity restructure (PC + management company) | $32,000 |
| Cash balance plan contribution ($170K deduction) | $59,500 |
| Combined effect (reducing QBI phaseout impact) | $3,500 |
| Total annual tax savings | $95,000 |
| Cumulative over 10 years | $950,000+ |
That's not an opinion. Those are real tax-code mechanics available to any attorney-structured practice in the country.
Unlike most business owners, law firm partners have a unique advantage: their practice already generates consistent, predictable cash flow. That stability makes a cash balance plan safer and more effective than it is for businesses with fluctuating revenue. You know what you're going to bill. You know your overhead. You know exactly how much room you have to save.
The only thing standing between you and these savings is the assumption that your current setup is fine.
Your Next Move
This isn't a DIY project. Entity restructuring and cash balance plan design require an experienced tax strategist who understands professional services firms — not a CPA who files once a year and disappears.
At Roadmap Tax, we work with law firm owners in San Diego, Frisco, and Florida to model their specific tax savings, design the right entity structure, and set up retirement plans that actually move the needle. Every attorney who sits down with us sees their exact numbers before making any changes — no pressure, no jargon, just straight talk and real math.
Book a free 30-minute strategy session. We'll show you exactly how much you're leaving on the table and what to do about it. Call (619) 280-2700 or email info@RoadmapTax.com.
FAQ
What entity structure is best for a law firm in 2026?
A two-entity structure — a Professional Corporation (PC or PLLC) paired with a Management Company (LLC or S-Corp) — typically generates the most tax savings for law firm owners earning $400K or more by separating personal service income from business revenue.
How much can an attorney contribute to a cash balance plan?
A 45-year-old attorney can typically contribute $120,000 to $150,000 per year. A 55-year-old partner can contribute $180,000 to $220,000 or more. The exact number depends on the plan's retirement income target and is calculated by an enrolled actuary.
Is a cash balance plan worth it for a small law firm with employees?
Yes. While employees must be included, plan design flexibility allows you to minimize their benefit relative to the owner's. The tax savings for the owner typically far outweigh the cost of employee contributions, especially in firms with short-tenured or younger staff.
What happens to the QBI deduction for law firms in 2026?
The QBI deduction (Section 199A) is fully phased out for law firms and other specified service businesses once taxable income exceeds approximately $500,000 (married filing jointly). Entity restructuring can help recapture a portion of this deduction by shifting revenue to a management company.
How do I start the process of restructuring my law firm for tax savings?
Start with a consultation with an enrolled agent or tax strategist who specializes in professional services firms. They will review your current entity structure, payroll setup, and retirement plan, then model the savings from restructuring and adding a cash balance plan before making any changes.
