Introduction: What an S Corp Tax Example Can Show
An S corporation can change how a qualifying U.S. business treats owner pay, pass-through income and payroll taxes. The outcome depends on salary, profit, ownership, deductions and current tax rules. For Australian founders, there is a second layer: eligibility, and what the ATO makes of the structure.
Many owners struggle to see the effect in dollars. So this article walks through a clearly labelled hypothetical that separates owner salary from shareholder distributions. It then covers the benefits, the limits, and the Australian cross-border questions. All figures are in USD, because they are U.S. tax figures.
Key Takeaways
- S corporations pass income, deductions and credits to shareholders instead of paying federal corporate tax.
- Working owners must take a reasonable salary before distributions.
- Distributions are not automatically tax-free; allocated profit is taxable even if retained.
- Nonresident aliens and companies cannot be shareholders, so Australian owners must check eligibility first.
What Is an S Corporation and How Is It Taxed?
What an S corporation is
An S corporation is a US federal tax election under Subchapter S, not a separate type of legal entity. An eligible US domestic corporation or LLC can elect it using Form 2553, signed by all shareholders. The election is generally due within 2 months and 15 days of the tax year's start, per IRS guidance.
Pass-through taxation
The business files Form 1120-S and reports income, losses, deductions and credits. Each shareholder receives a Schedule K-1 and reports their share on an individual return.
Shareholders may owe tax on allocated income whether or not it is distributed. That share is not self-employment income.
Salary, distributions and filing obligations
Salary is W-2 wages, with payroll filings and withholding. Distributions are payments of profit, limited by shareholder basis. Key points:
- Calendar-year 2026 Form 1120-S and K-1s are due 15 March 2027; Form 7004 extends filing by 6 months.
- Shareholders generally make estimated payments if they expect to owe $1,000 or more.
- Form 7203 tracks basis when a shareholder takes non-dividend distributions or claims losses.
- US states add their own rules. California charges 1.5% on S corporation income, while New York City does not recognise the election.
Confirm current forms and deadlines with a U.S. adviser before filing.
S Corp Tax Example: Salary, Distributions, and Taxable Income
Example assumptions
This is a hypothetical, not a prediction of anyone's tax bill. Assume a single U.S.-resident owner who owns 100% of an S corporation, uses the standard deduction, and lives in a state with no income tax. These are 2026 inputs:
- Revenue: $400,000
- Ordinary business expenses: $150,000
- Profit before owner pay: $250,000
- Reasonable owner salary: $100,000
- Employer payroll tax on salary: about $7,650 (7.65%)
Salary and distribution calculation
- Profit before owner pay: $250,000
- Less salary: $100,000
- Less employer payroll tax: $7,650
- Remaining pass-through profit: $142,350
The owner can take some or all of that as distributions, or leave cash in the business. Either way, the $142,350 is allocated on the K-1.
Federal tax treatment
| Amount | Reported as | Taxes that may apply |
|---|---|---|
| $100,000 salary | W-2 wages | Income tax, Social Security, Medicare |
| $142,350 profit | Schedule K-1 | Income tax; no self-employment tax |
Social Security applies to wages up to $184,500 in 2026, so the full salary is under the cap. Combined FICA is 15.3% of salary, split between employer and employee: about $15,300.
Taxable income is roughly $100,000 + $142,350, less the $16,100 standard deduction (employer payroll cost is already deducted), before any QBI deduction. That lands in the 22% to 24% bracket range.
Comparison with another structure
A sole proprietor with $242,350 of net earnings would pay self-employment tax of 15.3% on 92.35% of earnings, with the Social Security part capped.
The S corporation example applies payroll tax only to the $100,000 salary, which is where the potential saving comes from. That saving must cover extra payroll, return preparation and state costs.
A C corporation pays 21% federal tax on profit, and dividends may be taxed again to the shareholder. No structure wins universally.
Limits of the example
Results change with:
- the salary you can defend
- other household income and deductions
- shareholder basis
- state and local rules
- health insurance and retirement contributions
- foreign ownership
- changes in federal law
Get an individual calculation from a qualified adviser.
Main Tax Benefits of an S Corporation
Pass-through taxation and potential double-tax relief
Pass-through treatment avoids the corporate-then-dividend pattern of a C corporation, though shareholders still pay tax on allocated income. Built-in gains and certain passive income can still be taxed at entity level, and some US states add their own tax.
Potential payroll tax savings on distributions
Reasonable salary carries payroll tax, while profit allocated to a shareholder is not self-employment income. Savings exist only if profit after salary and compliance costs is large enough to matter.
Business expense deductions
Ordinary and necessary costs reduce taxable profit. Keep records that show the business purpose for each claim.
Common deductible items include:
- Staff pay and professional fees
- Insurance, software and marketing
- Travel and equipment
QBI (Section 199A) treatment
The deduction of up to 20% of qualified business income is permanent from 2026 under IRS business-tax guidance. Reasonable compensation is excluded from QBI.
For 2026, single-filer limits begin above $201,750 of taxable income, with wage and property limits and specified service business rules applying above that. Our example owner sits under the threshold.
Owner benefits and cash-flow planning
- Accountable-plan reimbursements are not wages if substantiated.
- Health insurance for greater-than-2% shareholders is included in W-2 wages, with possible deduction.
- Retirement contributions are based on W-2 pay, not distributions.
- Estimated taxes are due on profit even when cash stays in the company.
A deduction is not the same as cash saved. Not every benefit suits every shareholder.
Eligibility, Compliance, and Limitations
Eligibility requirements
The corporation must be a domestic US entity, with:
- no more than 100 shareholders
- only individuals, estates, certain trusts and specified exempt organisations as shareholders
- no partnerships, corporations or nonresident alien shareholders
- one class of stock, with identical distribution and liquidation rights
- no ineligible status, such as certain financial institutions and insurance companies
Reasonable compensation and shareholder basis
The IRS assesses training, duties, time devoted and comparable pay when judging reasonable compensation for shareholder-employees. No fixed percentage applies. In Watson v. United States (8th Cir., 2012), an owner took $24,000 in salary alongside distributions of over $175,000. Courts set reasonable pay at $91,044.
Shareholder basis rises with income and falls with distributions and losses. Non-dividend distributions above stock basis create capital gain. Loss deductions need adequate basis.
Administrative costs and risks
S Corp status also brings ongoing filing duties and reclassification risk:
- Form 2553 election, with late-election relief under Rev. Proc. 2013-30 if reasonable cause applies
- Annual Form 1120-S and K-1s
- Payroll deposits and filings
- State filings and bookkeeping
- Risk that low salary leads to distributions being reclassified as wages
Can Australian Businesses Use an S Corporation?
Direct ownership and U.S. eligibility
An Australian company cannot hold S corporation shares. An Australian individual is eligible only as a U.S. citizen or resident alien, such as a green card holder or someone who meets the substantial presence test (31 days this year and 183 weighted days over three years).
Australian nationality alone does not decide eligibility. Verify the exact ownership chain.
U.S. subsidiary or cross-border structure
Before forming or buying a U.S. entity, ask:
- Who will own the shares?
- Where will the business be managed?
- Can the entity make the election?
- How will profits be distributed?
- Does the structure serve the commercial purpose?
Australian tax and reporting consequences
U.S. eligibility does not set Australian treatment. Consider:
- Australian tax residency and worldwide income
- Controlled foreign company rules
- Treaty interaction
- AUD translation at the actual exchange rate when income is derived
- Foreign income tax offset, only once foreign tax is paid and income is assessable in Australia
An ATO ruling (TD 2022/7) treats a U.S. LLC as a foreign hybrid. It does not settle S corporation treatment.
When an S corporation may not fit
An S corporation is a poor fit when you have:
- Corporate or foreign shareholders
- Multiple classes of economic rights
- Venture capital funding
- Uneven profit allocations
Compare alternatives only after weighing both countries' rules.
Relevant professional support
VJM Global supports international businesses with accounting, tax compliance coordination and back-office work, including Australian and U.S.-connected businesses. This supports, and does not replace, advice from U.S. and Australian tax professionals.
Conclusion: Use the Example Before Choosing the Structure
Work through the decision in this order:
- Confirm S corp eligibility
- Set a defensible salary and distribution split
- Estimate federal and state tax costs
- Check basis and filing duties
- Model the Australian outcome
An S corporation can suit a profitable U.S. business. The right answer depends on current law, ownership, profit, compliance capacity and cross-border facts. This article is general information, not tax advice.
Frequently Asked Questions
What is the tax treatment for an S corporation?
Income, deductions and credits pass through to shareholders on Schedule K-1. Owner-employees receive W-2 salary. The business can still owe payroll, state or specific entity-level taxes.
How does an S corporation tax example work?
It separates business profit, reasonable salary, payroll taxes, pass-through income, distributions and deductions. That shows which amounts attract which taxes.
Are S corporation distributions tax-free?
No. They do not replace reasonable salary, are limited by basis, and do not remove income tax on allocated profit.
What is reasonable compensation for an S corporation owner?
It depends on duties, experience, time commitment, industry wages and comparable roles. No fixed percentage or universal formula exists.
Can an Australian resident or company own an S corporation?
Nonresident aliens and foreign companies cannot be shareholders. Get both IRS and Australian tax advice before implementing.
Is an S corporation better than an LLC?
An LLC offers legal and tax flexibility. An S corporation may offer payroll tax savings for a profitable owner-operated business, subject to eligibility, costs and current rules.
