This LLC vs S corp calculator compares simplified self-employment tax style burdens using the assumptions you enter for wages and profits. Entity choice involves legal, payroll, and state-tax factors beyond this model. Consult a qualified professional before electing.
This s corp tax savings calculator is a scenario estimate for education, not tax advice and not an election form. Entity choice also involves legal liability, state fees, payroll setup, and reasonable compensation rules that no website can decide for you. Pair quarterly payment planning with the quarterly estimated tax calculator, margin reality checks with the profit margin calculator, and payroll burden context with the employee cost calculator when you pay yourself a W-2 salary from the S corp.
Browse more tools under business finance, business calculators, and the calculators archive. Use this llc or s corp calculator to structure a conversation with a CPA, not to replace one.
What the comparison measures
On the LLC or sole prop style path, Multicalify applies self-employment tax to a 92.35 percent base of profit, then approximates income tax on profit after half of SE tax and an optional twenty percent QBI style reduction. On the S corp path, employer and employee style FICA applies to the salary portion only in this model, distributions equal profit minus salary, QBI style reduction can apply to distributions, income tax uses your marginal rate on taxable pieces, and admin cost is added. Savings equal LLC total minus S corp total.
Who it helps
- Owners deciding whether an S corp election is worth payroll complexity
- Freelancers comparing SE tax versus salary and distribution splits
- Advisors who want a transparent s corporation vs llc tax calculator sketch for clients
- Anyone who needs a free educational comparison without creating an account
How to compare LLC and S corp tax sketches
- Enter expected business profit for the year.
- Enter a reasonable salary you would pay yourself under an S corp.
- Enter your approximate marginal income tax rate percent.
- Choose whether to include a simplified QBI style deduction.
- Enter annual S corp payroll or admin cost if you want that friction included.
- Read the side-by-side totals and the savings (or extra cost) figure.
If salary exceeds profit, Multicalify caps salary at profit so the sketch stays coherent. Reasonable compensation must still follow IRS facts and circumstances in real life. Inflating distributions by setting an unrealistically low salary can produce a pretty number that fails under audit scrutiny.
How Multicalify compares the two paths
LLC SE tax uses the Social Security wage base cap on the 12.4 percent portion and applies 2.9 percent Medicare to the SE base. S corp FICA in this model applies 12.4 percent to salary up to the wage base plus 2.9 percent Medicare on salary. QBI is simplified at twenty percent when enabled. State income tax and many credits are ignored. The headline result is LLC total minus S corp total.
LLC path ≈ SE tax + income tax after SE deduction and optional QBI
S corp path ≈ FICA on salary + income tax on salary and distributions after optional QBI + admin
How to read savings
A positive savings figure means the S corp sketch looks cheaper than the LLC sketch under your inputs. A negative figure means the LLC path looks cheaper once salary FICA and admin are counted. Always stress-test a higher salary, because reasonable compensation often sits above the number that maximizes paper savings.
| Path | Multicalify focus |
|---|---|
| Sole prop / LLC | SE tax on profit base plus approximate income tax |
| S corp | FICA on salary, tax on salary and distributions, plus admin |
| QBI toggle | Simplified 20% style reduction when enabled |
| Result | LLC total minus S corp total (savings) |
Reasonable salary and QBI caveats
S corporation shareholders who work in the business generally must take reasonable wages before distributions. Industry pay, duties, and time worked matter. QBI deduction rules also have income thresholds, specified service trade limits, and wage or property limitations that this calculator does not fully model. Treat the QBI toggle as a blunt planning switch, then verify with current tax rules and a professional.
Linking to quarterly estimates and payroll cost
Whichever path you lean toward, cash-flow timing still matters. Use the quarterly estimated tax calculator to sketch payment pacing. When an S corp salary exists, employer burden concepts on the employee cost calculator help you see FICA and benefits around that wage. Profitability still starts with the profit margin calculator before entity tax theater.
When S corp savings often shrink
Low profit may not justify payroll fees, unemployment accounts, and extra filings. High required salaries can erase SE tax savings. State entity taxes or franchise fees can change the math even when federal sketches look favorable. Multicalify ignores state tax, so local rules can reverse a headline savings number.
Entity comparison mistakes owners make
- Treating the savings figure as personalized tax advice
- Setting an unrealistically low S corp salary to inflate distributions
- Ignoring payroll admin, software, and filing costs
- Forgetting state taxes and fees outside the federal style sketch
- Assuming QBI always applies at a flat twenty percent
- Skipping estimated taxes after an entity change
Limitations and YMYL disclaimer
This llc vs s corp calculator is educational only. It is not legal, tax, or accounting advice and does not create an attorney-client or CPA-client relationship. Elections, reasonable compensation, QBI limits, and state rules are fact-specific. Confirm every decision with a qualified tax professional and review current IRS guidance before you file or change entity taxation.
Related tools
Continue with the quarterly estimated tax calculator, profit margin calculator, and employee cost calculator. More options live under business finance.
Preparing for an advisor meeting
Bring profit history, a draft reasonable salary range from market pay data, and Multicalify printouts with QBI on and off. Ask about state franchise taxes, payroll setup timeline, and whether your work counts as a specified service trade for QBI. A clear llc or s corp calculator sketch makes the meeting faster without pretending the website filed anything for you.
Re-run the s corp tax savings calculator when profit jumps, when you add partners, or when payroll admin quotes change. Entity choice is a multi-year decision; refresh the scenario whenever the inputs that drive SE tax versus FICA shift.
Using entity tax sketches without overclaiming
Compare scenarios with honest salary and profit splits, then layer legal and state considerations with an advisor. The calculator is a conversation starter, not an election form.
Reasonable salary and why it dominates S corp math
S corp savings sketches collapse if wages are set unrealistically low. Payroll costs and unemployment taxes also matter. Stress-test salary assumptions before you treat the calculator gap as cash in pocket.
Related: S corp reasonable salary explained · Salary Tax Calculator.