Illinois LLC vs. S-Corp Tax Savings & Filing Fee Calculator (2026)
Calculate exact 15.3% self-employment tax savings with an IRS Form 2553 S-Corporation election in Illinois, factoring in the $150 IL Articles of Organization fee and $75/yr report cost.
- Standard Disregarded LLC SE Tax (15.3%): $0
- S-Corp W-2 Reasonable Salary: $0
- S-Corp Shareholder Distribution (0% SE Tax): $0
- S-Corp Payroll Tax (15.3% on Salary Only): $0
- Illinois Initial Filing / Annual Fee: $150 / $75/yr
- Est. Illinois State Income Tax (4.95%): $0
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Get $39 + state fee LLC formation with free 1-year Registered Agent privacy protection, or automate your single-owner S-Corp reasonable salary W-2 filings and quarterly Form 941s.
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Includes IRS Reasonable Compensation documentation log, Accountable Plan home-office/mileage reimbursement calculator, and quarterly estimated tax tracker.
Illinois (IL) Regional Benchmarks & Statutory Notes
| Illinois Benchmark Metric | 2026 Value | Regional Context (Midwest) |
|---|---|---|
| Skilled Trade Labor Cost Multiplier | 1.15x National Avg | Avg contractor billing rate: ~$98/hr |
| 4,000 PSI Ready-Mix Concrete Benchmark | $178 / cubic yard | Local frost footing depth: 42 inches |
| Illinois LLC Filing & Annual Report Fee | $150 initial / $75/yr | Top state income tax benchmark: 4.95% |
| Residential Security Deposit Statutory Cap & Deadline | 1.5x Rent / 30 Days | Strict municipal landlord ordinances (Chicago RLTO) and heavy winter road salt protection required. |
Frequently Asked Questions: Illinois LLC vs. S-Corp Tax & Filing Fee Calculator
How much does it cost to start and maintain an LLC in Illinois?
In Illinois (IL), the initial Articles of Organization state filing fee is $150, and the ongoing annual report / franchise compliance fee is $75 per year. The benchmark top state income tax rate is 4.95%.
At what profit level does an S-Corp make sense in Illinois?
Generally, once your net business profit exceeds $65,000–$80,000 per year in Illinois, the 15.3% Medicare and Social Security tax savings on shareholder distributions outweigh the ~$600/yr payroll software cost and $75 annual state fee.
What is considered a reasonable S-Corp salary?
The IRS requires S-Corp owner-employees to pay themselves W-2 wages commensurate with market rates for the services performed (commonly 40%–55% of net profit for solo service businesses, depending on role and hours).
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Compare LLC vs. S-Corp Tax & Filing Fee Calculator in Nearby Midwest States
Indiana (IN) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 0.93x | Concrete: $156/yd³ | LLC Fee: $95
Iowa (IA) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 0.91x | Concrete: $154/yd³ | LLC Fee: $50
Kansas (KS) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 0.9x | Concrete: $152/yd³ | LLC Fee: $160
Michigan (MI) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 1x | Concrete: $164/yd³ | LLC Fee: $50
Minnesota (MN) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 1.14x | Concrete: $178/yd³ | LLC Fee: $155
Missouri (MO) LLC vs. S-Corp Tax & Filing Fee Calculator
Labor multiplier: 0.94x | Concrete: $156/yd³ | LLC Fee: $50