S-corp vs LLC for a $180k profit contracting business in NJ

If you run an independent contracting or specialty trade business in New Jersey and generate $180,000 in net profit after operating expenses, your choice of tax structure significantly impacts your net take-home pay. Many contractors start as single-member LLCs out of simplicity. However, once profit consistently moves past six figures, remaining a default LLC can lead to overpaying on federal self-employment taxes.

Evaluating whether to elect S-Corporation tax status for your LLC is not a matter of subjective preference; it is a straightforward mechanical calculation comparing tax savings against additional administrative overhead.

The Default LLC Tax Burden at $180k Net Profit

When you operate a single-member LLC without an S-Corp election, the IRS treats the business as a disregarded entity for tax purposes. Your net profit of $180,000 flows directly to Schedule C on your personal tax return (Form 1040).

Under this default structure, the full $180,000 net profit is subject to Federal Self-Employment Tax (15.3% combined for Social Security and Medicare, applied to 92.35% of your net earnings) in addition to federal and New Jersey state income taxes.

For a $180,000 net income level, self-employment taxes alone exceed $23,000. Every additional dollar of profit continues to trigger self-employment tax up to the annual Social Security wage base cap, with Medicare tax applying without limit.

How an S-Corporation Election Changes the Math

An S-Corporation is not a distinct legal entity formed at the state level; it is a federal tax election made by filing Form 2553 with the IRS. Under S-Corp status, the tax treatment of your $180,000 profit splits into two distinct components:

1. W-2 Salary to the Owner: You become an employee of your business and receive a formal wage.
2. Shareholder Distributions: The remaining profit is paid to you as a profit distribution.

Payroll taxes (Social Security and Medicare at 15.3% combined) apply only to the W-2 salary portion. The profit distribution component is subject to ordinary income tax but is entirely exempt from self-employment tax.

Assuming a defensive, defensible W-2 wage of $80,000 for an active trade contractor in Central New Jersey, the tax mechanics shift as follows:

• W-2 Salary ($80,000): Subject to 15.3% payroll tax (~$12,240 total combined payroll tax burden).
• Distributions ($100,000): Subject to income tax, but 0% self-employment tax.

Comparing $12,240 in payroll taxes under an S-Corp against $23,000+ in self-employment tax under a default LLC reveals a gross federal payroll tax reduction of approximately $10,000 to $11,000 per year.

Setting Reasonable Compensation in New Jersey

The IRS requires that S-Corp owner-employees pay themselves a "reasonable compensation" before taking distributions. The IRS aggressively audits S-Corps that set unreasonably low salaries (or zero salary) simply to avoid payroll taxes.

For a New Jersey contractor, determining a reasonable salary depends on factors such as market rates for project management, physical labor, supervisory duties, geographic region, and specialized licenses held. You cannot simply set your salary at $20,000 on a $180,000 profit business. Setting a documented, wage-survey-backed salary is critical for audit protection.

New Jersey State Tax Specifics: CBT and NJ-BAIT

Transitioning to an S-Corp in New Jersey introduces specific state-level requirements and opportunities:

• NJ S-Election (Form CBT-2553): New Jersey requires a separate state S-Corp election. Obtaining federal S-Status alone is insufficient.
• NJ Minimum Business Tax: New Jersey S-Corporations are subject to the Corporation Business Tax (CBT) minimum tax, which typically ranges from $375 to $500 annually for small businesses.
• NJ Business Alternative Income Tax (NJ-BAIT): New Jersey allows pass-through entities (including S-Corps) to pay state income tax at the entity level. This creates a fully deductible business expense on your federal return, bypassing the federal $10,000 individual State and Local Tax (SALT) deduction cap.

The Cost of Administrative Overhead

The gross tax savings of an S-Corp must be reduced by the operational costs required to maintain compliance:

1. Payroll Processing Fees: Running regular payroll, quarterly payroll returns (Form 941/NJ-927), and issuing W-2s typically costs $600–$1,200 annually via a payroll provider.
2. Tax Return Complexity: An S-Corp requires filing Form 1120-S (federal) and NJ CBT-100S (state), which increases professional tax preparation fees compared to a simple Schedule C.
3. State Unemployment and Insurance: Owner W-2 wages are subject to state payroll taxes, including NJ unemployment taxes and state disability assessments.

Even after factoring in $2,000 to $3,000 of combined annual payroll fees, accounting overhead, and state minimum taxes, a contractor generating $180,000 in net profit still realizes a clear net cash savings of $7,000 to $8,000 every single year.

What to do next

If your contracting business is generating over $100,000 in net profit and currently operating as a default single-member LLC, you may be unnecessarily transferring profit to self-employment taxes.

To determine if an S-Corp election makes sense for your business:

1. Review your projected annual profit for the current year.
2. Benchmark a defensible salary for your specific operational role in Central New Jersey.
3. Model the net tax savings after accounting for payroll administrative costs and state filings.

Andrew Chen CPA LLC helps owner-operated trade contractors and small business owners across Somerset, Hunterdon, and Middlesex counties structure their entities cleanly and tax-efficiently. Contact us today at (908) 660-0090 or email Andy@andrewchencpa.com to schedule a direct tax strategy consultation.