S-Corp Savings Calculator — How Much Could You Save?
By Sanjeet Singh, CPA
Enter your self-employment income, and see the dollar-for-dollar difference between sole proprietor and S-Corp — including S-Corp costs.
Filing Info
Business Income
Enter your net income to compare sole proprietor vs S-Corp.
The question is simple: Does forming an S-Corp actually save me money? This page cuts through the complexity and shows you your net savings in one number.
The S-Corp Savings Formula
Gross Savings = (Net S-Corp Income − Reasonable Salary) × 15.3%
Net Savings = Gross Savings − Admin Costs
Example: You earn $100K net. Reasonable salary = $60K. Distribution = $40K.
- Gross Savings: $40K × 15.3% = $6,120 - Admin costs: $2,500/year - Net Savings: $3,620/year
That's meaningful money. But context matters — is it worth the extra complexity?
When S-Corp Savings Exceed Costs
S-Corp savings are worthwhile when gross savings exceed annual admin costs. Here's the math:
| Annual Net Income | Reasonable Salary | Distribution | Gross Savings | Admin Costs | Net Savings | Worth It? | |---|---|---|---|---|---|---| | $50,000 | $40,000 | $10,000 | $1,530 | $2,500 | -$970 | No | | $75,000 | $50,000 | $25,000 | $3,825 | $2,500 | $1,325 | Maybe | | $100,000 | $60,000 | $40,000 | $6,120 | $2,500 | $3,620 | Yes | | $150,000 | $80,000 | $70,000 | $10,710 | $2,500 | $8,210 | Yes | | $250,000 | $120,000 | $130,000 | $19,890 | $2,500 | $17,390 | Absolutely |
Rule of thumb: If your net income exceeds $80K–$100K, S-Corp savings typically exceed costs. Below that, it's borderline or not worth it.
What "Admin Costs" Include
The $2,500/year estimate covers:
| Cost | Amount | Notes | |---|---|---| | Payroll processing (ADP, Guidepoint, etc.) | $50–$150/month | $600–$1,800/year | | S-Corp tax return (Form 1120-S) | $300–$800 | Accountant adds this to your existing tax prep | | State franchise / annual fees | $0–$800/year | Varies by state; CA = $800, TX = $0, NY = ~$25 | | Registered agent (optional) | $100–$300/year | Only needed if no business address | | Total | — | $1,200–$3,800/year |
Some CPAs bundle S-Corp tax return prep into your overall fee without an add-on, which lowers total cost. Others charge separately. Ask your accountant upfront.
The Calculation Your CPA Uses
If you're talking to an accountant about S-Corp conversion, here's the math they'll reference:
1. Step 1: What's your net self-employment income (Schedule C profit)? - Example: $100,000
2. Step 2: What's a reasonable salary for your role? - Example: $60,000 (often 50–70% of net income)
3. Step 3: Calculate self-employment tax as a sole proprietor - $100K × 92.35% × 15.3% = $14,189 SE tax - Half ($7,094) deductible, so net cost is ~$13,000 after AGI deduction
4. Step 4: Calculate S-Corp payroll tax + distribution tax - Salary $60K: $60K × 15.3% = $9,180 payroll tax (similar structure, but deductible employer portion = $4,590 net cost ~$8,300) - Distribution $40K: $40K × 22% (federal) + 5% (state) = $10,800 income tax - Total: ~$19,100 (slightly higher due to state taxes on distribution, but gross savings is still $6,120)
5. Step 5: Subtract admin costs - $6,120 − $2,500 = $3,620 net savings
When NOT to Form an S-Corp
- Income under $50K: Savings don't justify complexity - Highly variable income: If some years you're at $50K and others at $200K, recalculating reasonable salary annually is a headache - Multiple owners: Each owner needs their own K-1 allocation; more complex - You're in a no-tax state: Texas, Florida, etc. have no income tax. Your savings are only 15.3% × distribution. Example: $100K income, $40K distribution = $6,120 gross savings. Same calculation, but no state tax layer. - You hate complexity: Running payroll is not hard, but it's one more thing. If you're overwhelmed, stick with sole proprietor.
Quick Self-Assessment
Ask yourself:
1. Is my net self-employment income $80K+? If no, stop here. 2. Is it relatively stable year-to-year? If no, reconsider. 3. Can I afford $2,500/year in admin costs? If no, it's not worth it. 4. Do I have a good CPA/bookkeeper? If no, don't form yet — you'll need one.
If you answered yes to all four, S-Corp is likely worth exploring.
Calculate your exact S-Corp savings →
Related Reading
- S-Corp tax calculator - S-Corp vs sole proprietor comparison - Should you form an S-Corp
Frequently Asked Questions
What are the ongoing costs of maintaining an S-Corp?
The main costs are: (1) Payroll processing ($50–$150/month, or $600–$1,800/year), (2) Extra tax prep ($300–$800/year for the Form 1120-S), (3) State annual/franchise fees ($0–$800/year depending on state), and (4) Optional registered agent service ($100–$300/year if needed). Total: $1,200–$3,800/year. Some CPAs bundle the extra tax prep into a flat fee, which lowers the total. Ask your accountant for an all-in quote before forming.
At what income does S-Corp savings exceed the costs?
Generally $80K–$100K net self-employment income. At $80K (reasonable salary $50K, distribution $30K), gross savings = $4,590, minus $2,500 admin costs = net savings of $2,090. At $100K, net savings jump to $3,620. Below $80K, savings are marginal or negative. Above $150K, S-Corp savings are substantial ($8K+/year). The exact threshold depends on your reasonable salary allocation and state taxes.
How do I calculate my S-Corp savings quickly?
Use this shortcut: (Net income − Reasonable salary) × 15.3% = Gross Savings. Then subtract $2,500 for admin costs. Example: $100K income, 60% reasonable salary = $40K distribution. $40K × 15.3% = $6,120 gross. Minus $2,500 = $3,620 net savings. This is conservative because it doesn't account for state income tax on distributions (which can lower the distribution tax cost slightly), but it's a good ballpark figure for quick assessment.
Related Calculators
Need the full picture?
Combine W-2, freelance, and rental income into one complete tax estimate with our full calculator.