Tax

S-Corp vs. LLC for Small Business Owners

When the S-corp election actually saves money for an LLC owner, and when it costs more in headaches than it pays in taxes.

By Aparna Devalla, CPA3 min · 5 slidesUpdated May 3, 2026

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An LLC is a legal entity. By default, it's a disregarded entity (single-member) or partnership (multi-member) for tax — all profit hits your personal return.
The S-corp is a tax election (Form 2553), not a separate entity. An LLC can elect to be taxed as an S-corp.
The reason owners elect S-corp: the owner can split income between salary (subject to payroll tax) and distribution (not subject to payroll tax).
There's no S-corp benefit at low profit levels. The election starts to make sense once profit is meaningfully above a reasonable salary for the work performed.

Net business profit comfortably exceeds a reasonable W-2 salary for similar work in your market.
You can document and pay yourself a defensible salary — the IRS scrutinizes this.
The payroll-tax savings on the distribution portion exceed the cost of running payroll, the extra return (1120-S), and accounting overhead.
Rule of thumb: profit ≥ ~$80–100K above reasonable salary is the threshold where most owners come out ahead. Below that, the math often doesn't work.

You must run real payroll — withholdings, 941s, W-2 — even if you're the only employee.
S-corp loses the QBI deduction simplicity that flow-through partnerships and Schedule C businesses get more easily.
Owner health insurance, HSA, and retirement plan contributions follow specific S-corp rules (e.g., >2% shareholder rule).
California charges a 1.5% S-corp franchise tax on net income (minimum $800) — eats into the savings.
Reasonable compensation challenges from the IRS are real; underpaying yourself to maximize distribution invites audit.

Profit is volatile or marginal — payroll overhead outweighs the savings in low years.
You want maximum simplicity and flexibility (no payroll, no 1120-S, no quarterly 941s).
You qualify for and benefit from QBI more cleanly as a passthrough.
You may add or remove members frequently (S-corps have ownership restrictions: no foreign owners, no entity owners, only one class of stock).

Project next year's profit honestly, not last year's.
Determine reasonable comp for the work you do (BLS data, recruiter quotes, industry surveys).
Calculate payroll-tax savings on (profit − salary) at 15.3%, then subtract: payroll service cost, 1120-S prep cost, CA franchise tax (if applicable), QBI delta.
Talk to a CPA before you elect — late elections (Rev. Proc. 2013-30) are possible but messy.
Need help running this analysis? Rubric Financial does S-corp vs. LLC modeling and the elections themselves.