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S-Corp vs LLC for Solo Attorney Practices: Which Saves More on Taxes?

2026-08-21

S-Corp vs LLC for Solo Attorney Practices: Which Saves More on Taxes?
Photo: Pavel Danilyuk / Pexels

Compare S-Corp vs LLC for solo attorneys: tax savings, costs, and steps to choose. Realistic 2026 figures and practical advice.

For solo attorneys, choosing between an LLC and an S-Corp is one of the most consequential tax decisions you’ll make. The short answer: an S-Corp can save you thousands in self-employment taxes, but only if your net income exceeds roughly $60,000 to $80,000. Below that, the extra costs and administrative burden often outweigh the benefits. This guide breaks down the numbers, the trade-offs, and the steps to decide.

How LLC and S-Corp Taxation Differ for Solo Attorneys

A single-member LLC is taxed as a sole proprietorship by default. You report business income on Schedule C, and you pay self-employment tax (Social Security and Medicare) on 100% of your net profit. In 2026, the self-employment tax rate is 15.3%: 12.4% for Social Security up to the wage base ($176,100 in 2026) and 2.9% for Medicare with no cap.

An S-Corp is a tax election, not a business structure. You still form an LLC or corporation, then file Form 2553 to elect S-Corp status. As an S-Corp owner, you must pay yourself a “reasonable salary” as a W-2 employee. You pay payroll taxes on that salary, but the remaining profits are distributed to you as dividends, which are not subject to self-employment tax. This is the core tax advantage.

Tax Savings: The Real Numbers for 2026

Let’s compare a solo attorney with $150,000 in net profit (after business expenses, before owner compensation).

LLC (Sole Proprietor)

  • Self-employment tax: $150,000 × 15.3% = $22,950
  • Income tax: depends on your bracket, but you also get the QBI deduction (20% of qualified business income, subject to limits).

S-Corp (Reasonable Salary: $100,000)

  • Payroll taxes on salary: $100,000 × 15.3% = $15,300 (employer half is deductible, but net effect is similar)
  • Medicare surtax on dividends: 0.9% on income above $200,000 (single), so likely not applicable at this level.
  • Income tax: you pay income tax on both salary and dividends, but the QBI deduction may apply to the dividend portion.

Net savings: $22,950 - $15,300 = $7,650 per year, before accounting for payroll processing fees and extra accounting costs.

But if your net profit is only $40,000, the savings are $40,000 × 15.3% = $6,120, but you must pay yourself a reasonable salary, which might be $30,000. Payroll taxes on $30,000 = $4,590. Savings: $1,530. That’s less than the typical annual cost of S-Corp compliance.

Costs of Running an S-Corp

S-Corps come with real costs that eat into savings:

  • Payroll service: $40-$100/month (e.g., Gusto, ADP, or SurePayroll). That’s $480-$1,200/year.
  • CPA or tax preparer fees: S-Corp returns are more complex. Expect $1,000-$2,500/year for tax preparation, versus $300-$600 for a sole proprietor.
  • State fees: Some states charge franchise taxes or annual reports. For example, California charges $800 minimum franchise tax for S-Corps, plus an additional fee based on income. LLCs also pay $800, but other states vary.
  • Workers’ compensation: In some states, S-Corp owners must carry workers’ comp for themselves, which can cost $500-$2,000/year.

Total additional costs: $1,500-$4,000/year, depending on your state and payroll provider.

Comparison Table: LLC vs S-Corp for Solo Attorneys (2026)

Factor LLC (Sole Proprietor) S-Corp
Tax on profits 15.3% self-employment tax on all net income Payroll tax on salary only; dividends not subject to SE tax
Reasonable salary required No Yes, must be market-rate for your role
Payroll processing Not required Required, $40-$100/month
Tax preparation cost $300-$600/year $1,000-$2,500/year
State fees Varies, often $0-$800 Varies, often $0-$800 plus franchise tax
Retirement plan contributions Based on net profit (up to 25% of profit) Based on salary (up to 25% of salary)
QBI deduction 20% of net profit, subject to income limits 20% of qualified business income, but salary reduces QBI
Administrative burden Low High: payroll, quarterly filings, annual meeting minutes

When an S-Corp Makes Sense for a Solo Attorney

An S-Corp is worth it if:

  • Your net profit is consistently above $80,000 (some say $60,000, but the higher threshold accounts for costs).
  • You plan to reinvest profits into the business, because dividends can be taken without payroll tax.
  • You want to maximize retirement contributions, but note that S-Corp contributions are based on salary, not profits, which can be a disadvantage.

Example: A solo attorney with $200,000 net profit and a $120,000 salary saves roughly $12,240 in self-employment tax ($200,000 × 15.3% = $30,600 vs $120,000 × 15.3% = $18,360). After $2,500 in extra costs, net savings are $9,740.

When to Stick with an LLC

Stay as a sole-proprietor LLC if:

  • Your net profit is under $60,000. The savings are too small to justify the hassle.
  • You value simplicity. An S-Corp requires payroll, quarterly Form 941, and annual Form 1120-S.
  • You plan to take most of your income as salary anyway, which eliminates the tax advantage.

Steps to Decide and Implement This Week

  1. Calculate your net profit: Look at your 2025 tax return or your profit-and-loss statement. Use that as a baseline.
  2. Run the numbers: Use the figures above to estimate savings. If your net profit is above $80,000, an S-Corp likely saves money.
  3. Consult a CPA: Ask specifically: “At my income level, does an S-Corp save me more than it costs?” Get a written estimate.
  4. If you decide to switch: File Form 2553 with the IRS by March 15 of the tax year you want the election to take effect (or within 75 days of forming the LLC).
  5. Set up payroll: Choose a provider like Gusto or SurePayroll. Set your salary to a reasonable amount, typically $80,000-$150,000 for a solo attorney, depending on your practice area and location.
  6. Adjust quarterly estimated taxes: Your payroll withholding will cover part of your tax liability; work with your accountant to avoid underpayment penalties.

FAQ

Q: Can I be both an LLC and an S-Corp? A: Yes. An S-Corp is a tax election. You form an LLC first, then elect S-Corp status by filing Form 2553. The LLC remains your legal entity.

Q: What is a “reasonable salary” for a solo attorney? A: The IRS requires that your salary be comparable to what you’d pay someone else for the same work. For a solo attorney, that often ranges from $80,000 to $150,000, depending on your practice area, location, and billable hours. Your CPA can help you justify it.

Q: Does an S-Corp reduce my QBI deduction? A: Yes. The QBI deduction is 20% of qualified business income, but your salary is not QBI. So if you pay yourself a $100,000 salary and take $50,000 in dividends, your QBI is only $50,000, giving you a $10,000 deduction instead of $30,000 if you had no salary. This can offset some of the tax savings.

Q: What if I don’t pay myself a salary? A: The IRS can reclassify your dividends as salary and impose penalties, including back taxes, interest, and fines. It’s not worth the risk.

The Bottom Line

For solo attorneys, an S-Corp can save $5,000 to $15,000 per year in self-employment taxes, but only if your net profit is above $80,000. Below that, the costs and complexity of payroll and compliance often erase the benefits. Start by calculating your net profit, then consult a CPA who works with attorneys. If you decide to switch, do it early in the tax year to maximize savings. If you’re below the threshold, focus on maximizing your LLC deductions and retirement contributions instead.