What is an s-corporation (s-corp)?

An S-Corporation is a tax classification allowing business profits and losses to pass through to owners' personal tax returns while maintaining limited liability protection and enabling tax savings through salary-plus-distribution income splitting. For professional service firms, S-Corp status offers significant tax savings by splitting income between salary (subject to 15.3% self-employment tax) and distributions (not subject to self-employment tax). A consulting firm with $400,000 profit might pay a $150,000 reasonable salary (subject to payroll taxes) and take $250,000 in distributions (no payroll taxes), saving approximately $38,250 annually.

Key characteristics of an S-Corporation (S-Corp)

• Tax status, not business structure: Usually an LLC electing S-Corp tax treatment via Form 2553

• Requirements: Fewer than 100 shareholders, one class of stock, only U.S. citizens/residents

• Pass-through taxation: Business pays no federal income tax; profit/loss flows to owners' 1040

• Salary requirement: Owners performing services must pay themselves "reasonable compensation."

• Payroll complexity: Requires actual W-2 payroll processing, quarterly 941 filings

Why s-corporation (s-corp) matters for service firms

S-Corp status makes financial sense when business profit exceeds $60,000-$80,000 annually. Below this threshold, administrative costs (payroll processing, tax preparation complexity, accounting fees) often exceed tax savings. For profitable consulting firms, the 15.3% self-employment tax savings on distributions are substantial. A $300,000 profit generates approximately $30,000 annual tax savings through the S-Corp election. However, the IRS scrutinizes S-Corp salaries; paying $40,000 salary while taking $360,000 distributions on $400,000 profit invites audit risk. Reasonable salary benchmarks: 35-50% of net income for working owners.

Example: S-Corp tax savings for consulting firm

• Business profile: $2M revenue, $1.6M expenses, $400K net income

As a sole proprietorship:

• Net income: $400,000

• Self-employment tax (15.3%): $56,400

• Income tax (estimated 24% effective): $82,500

• Total tax: $138,900 (34.7% effective rate)

As an S-Corporation:

• Owner's reasonable salary: $150,000

• FICA on salary: $22,950 (15.3% total, split between employee/employer)

• Distribution to owner: $250,000

• Income tax on $400K: $82,500 (same)

• Total tax: $105,450 (26.4% effective rate)

• Annual tax savings: $33,450

S-Corp costs:

• Payroll processing: $1,200 annually

• Additional tax prep: $800 annually

• Total additional cost: $2,000

• Net annual benefit: $31,450

• Breakeven analysis: Tax savings exceed costs when net income exceeds approximately $70,000