
This guide explains the difference between a legal conversion and a tax election, the eligibility checks, the Form 2553 process, and the federal, state, payroll and Australian tax issues. It is educational only. Get advice on your specific entity and residency position before filing.
Key Takeaways
- An S corporation is a US tax classification, so electing it usually doesn't mean forming a new entity.
- Check eligibility first: US entity status, shareholders, stock rights and foreign ownership.
- Reasonable wages plus distributions can cut tax, but payroll costs often erase the savings.
- Australian owners must test both US rules and Australian tax treatment before electing.
What Does Changing to an S Corp Actually Mean?
Legal structure versus tax classification
A corporation's legal form comes from US state law. Its tax classification comes from US federal tax rules. A C corporation can elect S status, and an LLC can be taxed as an S corporation without changing its legal form.
The IRS says S corporations pass income, losses, deductions and credits through to shareholders, who report them on their own returns. That avoids double taxation of corporate income. It does not guarantee tax savings.
Benefits and trade-offs
Potential benefits:
- Pass-through treatment of profits
- Possible employment-tax planning through salary and distributions
Trade-offs:
- Shareholder and capital-structure restrictions
- Payroll administration for owner-employees
- Extra filings, plus possible entity-level taxes
- Less flexibility for certain investors
Businesses needing closer analysis
Look harder before switching if you:
- Plan to raise venture capital
- Want share classes with different economic rights
- Hold significant passive investments
- Carry C corporation attributes such as accumulated earnings
- Have foreign owners
Check Whether Your Business Is Eligible and Ready
Confirm S corporation eligibility
Under IRC §1361, the corporation must:
- Be domestic
- Have no more than 100 shareholders
- Have only permitted shareholders (individuals, estates, certain trusts and certain tax-exempt organisations)
- Have no nonresident-alien shareholder
- Have one class of stock
- Not be an ineligible corporation, such as certain financial institutions or insurance companies
Australian citizenship or residence alone doesn't decide whether someone is a US nonresident alien. That turns on their US tax status, which must be analysed separately.
A foreign company or partnership cannot be a shareholder, and a corporate parent is also barred. Check the current Form 2553 instructions and speak to a qualified US-Australian adviser rather than assuming.
Review ownership and corporate documents
Review these documents and arrangements:
- Cap table
- Shareholder agreements
- Voting rights and liquidation preferences
- Options, warrants and trust holdings
Any arrangement that gives shareholders different economic rights may create a second class of stock. Differences in voting rights alone are generally disregarded.
Every shareholder must consent to the election, so confirm who they are. Review planned ownership changes before you file.
Identify pre-election tax exposures
Work through this checklist:
- Appreciated assets and potential built-in gains
- Accumulated C corporation earnings and profits
- Passive investment income
- LIFO inventory
- Net operating losses
- Shareholder basis and debt
- Attributes that may not carry over as expected
Compare the expected benefit with the real cost
Ask your adviser for a written projection. It should compare current C corporation or LLC taxation with S corporation salary, distributions, payroll, state tax, accounting and filing costs. There is no universal saving figure or income threshold, so be wary of rules of thumb.
For Australian owners, also model:
- Residency and foreign income reporting
- Foreign tax relief and treaty position
- How Australia treats the US entity
Follow the Key Steps to Make the S Corp Election
1. Decide whether you need an election or a legal conversion
Many businesses only need the tax election. For an LLC, a timely Form 2553 is generally deemed to include the corporate classification election, so a separate Form 8832 is generally not needed. Confirm this for your facts.
If the legal entity itself must change, the route may be a statutory conversion, merger or another state-law method. Get legal and tax review before moving assets, contracts, liabilities or ownership interests.
2. Set the effective date and timeline
File no more than 2 months and 15 days after the start of the tax year the election takes effect, or at any time during the preceding tax year. Check the current IRS instructions before relying on this. Late-election relief under Rev. Proc. 2013-30 exists, but it requires reasonable cause and other conditions. It is not automatic.
3. Complete Form 2553
You need:
- Business name, address and EIN
- Incorporation or organisation date
- Intended effective date and tax year
- Shareholder details
- Officer signature
- Every required shareholder consent
A non-calendar year needs extra support, such as a natural business year test or a section 444 election on Form 8716.
4. Submit federal and state filings
The Form 2553 instructions list mail, fax and designated private delivery services, not e-filing. The IRS generally responds within 60 days. Keep proof of filing and the CP261 acceptance notice permanently.
State treatment varies. California generally treats a federal S election as a state election. New York City does not recognise S status, and DC treats S corporations as C corporations. Texas franchise tax applies regardless of S status.
5. Set up payroll and compensation
An owner who performs services needs documented reasonable compensation before taking distributions. Set up:
- Payroll registration and withholding
- Wage reporting and tax deposits
- Benefits
- Records supporting the pay decision
6. Update accounting and tax processes
Expect Form 1120-S and shareholder Schedule K-1 reporting. Add estimated tax planning, basis tracking, distribution records, minutes and year-end tax packages.
| Task | Owner |
|---|---|
| Election analysis and Form 2553 | Tax adviser |
| Payroll setup and filings | Payroll provider |
| Books and distribution records | Bookkeeper |
| Signatures and minutes | Corporate officer |
| Conversion or share-right changes | Legal adviser |

Understand the Tax Implications of Changing to an S Corp
Pass-through income and owner compensation
A C corporation pays entity-level tax, and shareholders pay again on dividends. S corporation income passes through and is taxed to shareholders. Pass-through treatment doesn't eliminate all taxes, and state-level treatment varies.
Compensation for services runs through payroll. Remaining eligible amounts may be distributed, subject to basis limits. The IRS says shareholder-employees need reasonable compensation, and there is no statutory formula. Distributions cannot disguise inadequate wages.

Conversion-specific exposures
- Built-in gains: Under §1374, a former C corporation may owe entity-level tax on built-in gain recognised within five years of its first S year. Value assets and review planned sales.
- Passive income: With accumulated earnings, passive income above 25% of gross receipts triggers tax. Three consecutive years of that excess can terminate S status.
- LIFO recapture: Tax is payable in four instalments.
- Net operating losses: C-year losses generally cannot carry into S years at corporate level, though §1374 lets some reduce built-in-gains tax. Calculate before electing.
Owner-level consequences
Shareholders track stock and debt basis, using Form 7203. Loss deductions generally cannot exceed basis. Accounting equity is not tax basis.
Also review:
- Health insurance for more-than-2% shareholders, generally included in W-2 wages
- Retirement contributions, based on W-2 pay rather than distributions
- Shareholder loans
Australian tax and US state consequences
An Australian tax resident generally must declare foreign income. A foreign income tax offset may be available, but it is not automatic or complete. CFC rules, residency and treaty provisions may also apply.
The ATO has not set a general classification for US S corporations. ATO ID 2010/77 covers a single-member US LLC that hadn't elected corporate treatment, so don't assume US pass-through treatment controls in Australia.
State and local taxes need a separate review, including franchise taxes, state elections and nonresident withholding. California, for example, requires 7% withholding on certain nonresident payments above $1,500.

Plan for Ongoing Compliance and Australian Cross-Border Issues
Recurring checklist
- Payroll filings and deposits
- Form 1120-S, generally due on the 15th day of the third month after year-end
- Schedule K-1 delivery
- Shareholder basis schedules
- State returns and estimated taxes
- Corporate records
- Annual eligibility review
Late Form 1120-S penalties are $255 per shareholder for each month or part-month late, for up to 12 months.
What can change your status
Revisit tax planning when ownership, capital or residency shifts. Common triggers include:
- Adding shareholders or transferring ownership
- Creating new share rights
- Changing residency
- Growing passive income
- Selling assets or raising capital
A new nonresident alien shareholder can end S status. Australian owners should treat residency and visa changes as eligibility events, not afterthoughts.
Support from VJM Global
VJM Global provides US accounting, tax compliance and payroll for Australian businesses, delivered with support teams in India. The firm can review your records, maintain basis and payroll files, and coordinate ongoing compliance with your advisers.
Book a call to discuss your structure. Eligibility and tax results depend on your facts.
Frequently Asked Questions
How do I switch from C-Corp to S-Corp?
Confirm eligibility, collect every shareholder's consent, and file Form 2553 within the deadline. Follow up with the relevant US state, and model built-in gains and other conversion exposures first.
What are the benefits of switching to an S-Corp?
Income passes through, and reasonable wages can be separated from distributions. Ownership limits, payroll duties and state taxes apply, and no savings are guaranteed.
Can an Australian resident or foreign investor own shares in an S corporation?
It depends on the person's US tax status and type of owner, not citizenship alone. Nonresident aliens and foreign entities cannot hold shares, so get professional review.
When should I file Form 2553 to elect S corporation status?
Generally within 2 months and 15 days of the intended effective year's start, or earlier in the prior year. Late relief exists only if specific requirements are met.
What tax issues should I review before changing from a C corporation to an S corporation?
Review built-in gains, earnings and profits, passive income, LIFO, losses, benefits, basis, state taxes and Australian tax treatment.