Tax Planning for Attorneys and Law Firms

Attorneys are excellent at reading rules and terrible at billing themselves time to apply those rules to their own finances. The result: law is one of the highest-earning professions in America and one of the most under-planned for taxes — partly because the tax code singles out lawyers in ways it doesn't single out, say, engineers. Here's what actually works for attorneys and firms in 2026.

Why is tax planning genuinely different for lawyers?

Four structural quirks stack up against legal professionals:

• Law is a "specified service trade or business" (SSTB). That designation limits the 20% qualified business income deduction at higher incomes — a restriction that doesn't apply to most other business owners.
• Income arrives in lumps. Contingency practices can see a $40,000 year followed by a $900,000 year, which wreaks havoc on brackets and estimated taxes.
• You hold other people's money. Trust accounting creates income-timing questions most businesses never face.
• High earnings, high brackets. Many partners sit at or near the 37% federal bracket, where every planning decision is worth roughly a third more than it is for the average taxpayer.

None of these are reasons to despair — they're reasons the payoff from deliberate planning is unusually large for attorneys.

Can attorneys still claim the QBI deduction in 2026?

Yes — below the income thresholds, fully. The One Big Beautiful Bill Act made the 20% QBI deduction permanent, and for 2026 an SSTB owner gets the full deduction if taxable income is at or below $201,750 (single) or $403,500 (married filing jointly). It then phases out over the next $75,000 / $150,000 of income, disappearing entirely for lawyers above $276,750 / $553,500.

This creates the single most valuable planning lever for successful attorneys: managing taxable income back under the threshold.

A worked example (2026): A married solo litigator has about $430,000 of taxable income, including $320,000 of firm profit. At that level, her SSTB deduction is nearly gone. Suppose she contributes $24,500 to her solo 401(k), adds an employer profit-sharing contribution, and layers in a defined benefit contribution — pulling taxable income to roughly $395,000. She's now under the $403,500 threshold, so the full QBI deduction comes back to life: potentially a deduction in the $55,000–$60,000 range on her qualified income, worth roughly $18,000–$20,000 in federal tax at her bracket — on top of the tax deferred by the retirement contributions themselves. Numbers vary with the details, but the double-benefit structure is real and repeatable every year.

Which entity structure fits a law practice?

State bar rules limit your menu (law firms generally must be owned by lawyers, and many states require PC/PLLC forms), but the tax logic looks like this:

For a profitable solo, the S-corp math is usually the first big win: pay yourself a defensible reasonable salary, take the rest as distributions, and stop paying the 15.3% self-employment tax on the distribution slice. Run your own numbers through our S-corp calculator — the sweet spot depends on your profit level and state.

One caution: S-corp wages reduce QBI, and for SSTB owners near the thresholds the interaction gets genuinely tricky. This is a both-hands-on-the-wheel calculation, not a rule of thumb.

How are trust accounts and client costs treated for tax?

Two rules keep contingency and retainer practices out of trouble:

• IOLTA/trust funds are not your income. Client money in trust becomes taxable only when you earn it — when fees are fixed and you have the right to withdraw them. Sweeping earned fees out of trust promptly (as bar rules already require) keeps your tax records and ethics records aligned.
• Advanced client costs are usually loans, not deductions. Court filing fees, experts, and deposition costs you front in a contingency case are generally treated as loans to the client — deductible only when the case resolves and they prove unrecoverable, not when paid. (A narrow line of authority treats certain gross-fee contracts differently in some circuits; get specific advice before relying on it.)

On fee timing: cash-basis firms recognize fees when received, and constructive receipt blocks the old trick of leaving an available December check uncashed until January. Genuine deferral structures exist — including properly structured attorney fee arrangements negotiated before the fee is earned and payable — but they're technical instruments with real requirements, not year-end improvisations.

What retirement strategies actually move the needle for partners?

For 2026, the deferral stack looks like this:

• 401(k) employee deferral: $24,500, plus an $8,000 catch-up at 50+ (and a larger $11,250 catch-up for ages 60–63)
• Total defined-contribution limit: $72,000 employer + employee combined (compensation cap $360,000)
• Cash balance / defined benefit plans: the heavyweight option — depending on age and census, older partners can often contribute well into six figures per year on a deductible basis

For firms with staff, plan design matters (you'll fund employees too), but for high-income partners in their 50s, a layered 401(k)-plus-cash-balance design is frequently the largest legal deduction available — and, as the QBI example above shows, it can unlock a second deduction on the way down.

Can lawyers still deduct their state taxes?

Partially — and better than a few years ago. For 2026 the SALT deduction cap is $40,400, but it phases back down toward $10,000 once modified AGI passes $505,000, which describes a lot of successful partners.

The stronger tool survived the 2025 tax law intact: pass-through entity tax (PTET) elections. Most states let a partnership or S-corp pay state income tax at the entity level, deduct it fully as a business expense, and credit it to the owners — effectively sidestepping the personal SALT cap. Election deadlines and mechanics vary by state, and a missed deadline usually can't be fixed retroactively, so this belongs on the calendar every year. The rest of this year's law changes are tracked in our 2026 tax changes hub.

Attorneys tend to arrive at our door in one of two states: mid-crisis (a surprise six-figure April bill after a big contingency year) or mid-curiosity (a partner who suspects they're leaving money on the table). Both are the right moment. Problems come here to get solved. For law firms specifically, the fix is usually a standing annual playbook: entity review, PTET election, retirement funding, and a Q4 threshold check.

FAQ

Is an S-corp worth it for a solo attorney?

Usually once consistent profit clears roughly $100,000, the self-employment tax savings outrun the payroll and filing costs — but the QBI/salary interaction and your state's rules (including any PTET treatment) can move that line. Model it before electing.

Are bar dues, CLE, and malpractice insurance deductible?

Yes — annual bar dues, continuing legal education, and malpractice premiums are ordinary business expenses. What's not deductible: bar exam fees and the costs of getting admitted in the first place (those are personal/capital in nature).

A settlement check arrived December 30 but I deposited it in January. Which year's income?

Almost certainly the earlier year. Constructive receipt turns on when the funds were available to you without restriction, not when you deposited them.

Do I need to issue 1099s to experts and contract attorneys?

For payments made in 2026, the 1099-NEC threshold rose from $600 to $2,000 per payee. Payments to incorporated vendors are generally exempt — but attorney-fee payments have their own special reporting quirks, so confirm before skipping a form.

What does full-service planning for a firm cost?

Depends on entity count and complexity — our pricing page lays out the plans, and most firms find the PTET election alone covers the fee.

Reviewed by the WAYG tax team · Updated July 2026