Business · Tax
S-Corp Tax Savings Calculator
Savings are only savings after the admin is paid for.
Savings are only savings after the admin is paid for.
Estimate possible S-corp savings after reasonable salary, payroll taxes, payroll service, bookkeeping, filing, state costs, and admin time.
Best for: Owners with enough profit to consider S-corp treatment but enough uncertainty to want a conservative spread.
Estimate inputs
Decision mode
Get the current planning number from the inputs.
Scenario presets
What most advice leaves out
Most S-corp content talks about savings. Less of it talks about payroll, bookkeeping, separate tax filing, reasonable salary documentation, state costs, late filings, and profit instability.
How this calculator thinks
This calculator compares a sole-proprietor self-employment tax frame with an S-corp salary and distribution frame, then subtracts payroll, bookkeeping, filing, and state/entity costs. It is a screening model, not an election recommendation.
Reality check questions
- Is profit stable enough to justify added admin?
- What salary assumption are you using, and why?
- What will payroll, bookkeeping, and tax prep cost?
- What state costs apply?
- Would the savings still matter if profit drops?
What this tool does not do
- It does not file taxes or determine a tax position.
- It does not determine reasonable salary, eligibility, deductions, penalties, or state treatment.
- It does not replace a CPA, enrolled agent, tax software, or official IRS forms.
- It does help identify the tax assumptions to verify before acting.
Operator examples
Consultant at $150k profit
A consultant models $150,000 of profit, $85,000 of salary, and $4,400 of payroll, filing, and state costs. The spread may be worth a CPA discussion, but it is not automatic.
Kefiw takeaway: The decision is strongest when savings survive higher salary, higher admin cost, and a weaker profit year.
Your next calculator depends on what felt uncomfortable
Messy questions this calculator should answer
Is an S-corp worth it at $80,000 income?
Often not automatically. At lower profit levels, payroll, tax prep, bookkeeping, state fees, and admin time can erase much of the spread.
What costs reduce S-corp savings?
Payroll service, bookkeeping, separate business return prep, state/franchise fees, registered agent or compliance costs, and the owner time needed to maintain the structure.
What happens if reasonable salary is higher?
A higher salary reduces the distribution amount and can shrink or erase the payroll-tax spread.
Can S-corp savings disappear?
Yes. Lower profit, higher salary, higher admin cost, or state costs can turn a good-looking estimate into a weak decision.
Is an S-corp worth it if income is irregular?
Irregular income makes the decision harder because fixed admin costs remain even when profit drops.
Business recommendation rule
Calculator result -> guide -> template -> software or service
Kefiw should not send a Business user from a calculator straight to generic affiliate cards. The result should point to the next decision, then to the asset or tool category that fits the actual bottleneck.
- Step 1
Calculator result
Start with the calculator state, not a tool category.
- Step 2
Result-state guide
Read the guide for the exact weakness the result exposed.
- Step 3
Template or packet
Turn the number into a script, worksheet, checklist, or review packet.
- Step 4
Software or service bridge
Consider tools only after the problem is clear enough to justify them.
Disclosure stays close to recommendation blocks: Kefiw may earn a commission from some links, but calculator results are not changed by affiliate relationships.
Assumptions
- Savings can disappear if salary is understated, admin cost is high, or state taxes offset the benefit.
- Reasonable salary is a facts-and-circumstances issue.
Deductions need a business reason and records
Self-employed deductions generally need to be ordinary, necessary, tied to the business, and supported by records. The dangerous deductions are usually not the biggest dollar amounts; they are the ones with weak business purpose, mixed personal use, or no contemporaneous documentation.
- Home office: document exclusive and regular business use, square footage, and why the space is not personal.
- Vehicle: keep a mileage log or actual-expense records. The 2026 standard business mileage rate is 72.5 cents per mile.
- Meals and travel: keep business purpose, date, amount, location, and who was involved.
- Software, phone, internet, equipment: split personal and business use if mixed.
Danger flags
This tool should flag deductions that often need extra support: large home-office claims, 100 percent vehicle use, travel mixed with vacation, meals without business purpose, family payroll, hobby-like losses, and contractor payments without tax forms.
Related tools and tracks
Tools that may help after you run the numbers
Use this only after the calculator shows where the pressure is. The useful category depends on the bottleneck, not the ad pitch.
- payroll software
- tax prep
- CPA review
- bookkeeping software
Source links used for this calculator family
Source check and limits
Last source check: April 30, 2026
Scope checked: IRS S-corp reasonable-compensation guidance, federal payroll baseline, and Social Security wage base. State fees are user-entered assumptions.
This calculator uses educational planning assumptions. Tax rules, thresholds, forms, deadlines, and state rules can change. Kefiw shows the assumptions used so you can audit the math before relying on the result. This tool does not provide legal, tax, accounting, payroll, or filing advice.
This tool estimates possible savings after reasonable salary, payroll, filing, state, and admin assumptions. It does not determine a reasonable salary or tax election.