How the S-Corp Election Actually Works (and When It's Worth It)

#What the S-corp election actually does

By default, single-member LLCs are taxed as sole proprietorships. Multi-member LLCs are taxed as partnerships. Both pass-through every dollar of business income to the owner’s personal return — and every dollar of that net income gets hit with the 15.3% self-employment (SE) tax (12.4% Social Security + 2.9% Medicare, with limits).

When you file Form 2553 to elect S-corporation tax treatment, the math changes. The business pays you a salary (subject to payroll tax — same 15.3% effective rate split between employer + employee). Anything above the salary comes out as a distribution — and distributions are not subject to SE tax.

That’s the entire savings mechanism. The wider the gap between net business income and reasonable salary, the bigger the S-corp savings.

#When the math works

The break-even threshold is typically around $80K–$100K of net business income. Below that, the cost of running payroll (Gusto + accountant fees + state unemployment registration) eats up most of the SE tax savings. Above that, savings grow linearly.

Rough math at a few income levels (assumes reasonable comp at 50% of net):

Net business income	Reasonable comp	SE tax (no S-corp)	S-corp savings
$80,000	$40,000	$12,240	~$3,000/yr
$150,000	$75,000	$19,200 (capped SS)	~$8,500/yr
$250,000	$125,000	$22,800	~$15,000/yr
$400,000	$200,000	$27,000	~$22,000/yr
$600,000	$250,000	$30,000	~$32,000/yr

These are rough. The actual reasonable comp number is what drives the savings — too low and you create IRS audit risk; too high and you’re paying SE tax you didn’t need to.

#How to elect — Form 2553

Form 2553 is one page. It tells the IRS you want S-corporation tax treatment. The filing rules:

1. New entities: file within 2 months and 15 days of formation
2. Existing LLCs: file by March 15 of the tax year you want the election effective for
3. Late election (Section 1362(b)(5)): file up to 3 years and 75 days after the intended effective date, with reasonable-cause language

For #3 — the late election — that’s the move most CPAs miss. If you formed your LLC in 2024 and your CPA never raised the S-corp election, you can usually file a late election in 2026 effective retroactive to January 2026 (or in some cases earlier). The IRS approves the vast majority of late-election requests as long as you have reasonable cause and you’ve been operating consistently with the election.

#What has to come with it

The S-corp election is not a paperwork-only move. The IRS expects the structure to actually function as an S-corporation:

1. Payroll has to run. Officer / owner salary paid on a regular cadence (we use monthly or semi-monthly). Through Gusto, Run by ADP, or a similar payroll provider.
2. Reasonable comp has to be documented. Industry benchmark, job description, comparable wage data. Not a number you picked.
3. The accountable plan has to be set up. Home office, vehicle, phone, internet — reimbursed from the S-corp tax-free, deducted at the entity level. Without this, you’re missing deductions.
4. Distributions have to be on a different schedule from payroll. Don’t pay yourself reasonable comp on the 15th and a distribution on the 16th. Distributions follow earnings; comp follows the payroll calendar.
5. A separate business bank account is non-negotiable. Co-mingling personal and business funds destroys the corporate veil and gives the IRS reason to disregard the entity.

#When the S-corp election is the WRONG move

We turn away S-corp election requests in three cases:

1. Net business income under ~$80K. Math doesn’t work. Schedule C is fine.
2. Real estate rental held in the entity. Rentals belong in LLCs taxed as partnerships or sole props — never S-corps. Distribution rules + loss-passthrough mechanics are wrong for rentals.
3. Multiple owners with materially different operating roles. S-corps require pro-rata distributions to all owners. If two owners do different amounts of work, the S-corp structure forces awkward compensation gymnastics — partnership taxation handles this more cleanly.

#What we do when you engage

If you engage ETS for an S-corp election, the standard 30-day workflow:

• Day 1: Discovery call. We model your numbers, confirm S-corp is the right move, and quote.
• Day 2–3: Form 2553 prepared and filed (with reasonable-cause language if late).
• Day 4–10: Reasonable comp benchmarked + documented. Memo lives in your Basecamp portal.
• Day 10–14: Gusto payroll setup. Federal + state tax registrations. First payroll calendared.
• Day 14–21: Accountable plan built. Home office, vehicle, phone, internet templates delivered.
• Day 21–30: Distribution policy documented. Banking sub-accounts (via Relay) configured for payroll vs. operating vs. distribution.

By day 30, the structure is operational. Going forward it runs without you thinking about it.

#Common questions

Can I elect S-corp on my LLC without becoming a corporation? Yes. The LLC stays an LLC for state-law purposes (operating agreement, ownership, liability protection). The S-corp election is a federal tax election only.

What if I miss the March 15 deadline? File a late election under Section 1362(b)(5). The IRS approves the vast majority. We’ve never had one denied for a client.

Can I revoke the S-corp election later? Yes, but with consequences. Revocation triggers a 5-year wait before re-electing. Usually only worth it if the business has fundamentally changed (e.g., taking on outside investors who need C-corp treatment).

Do I need an EIN before filing? Yes. The S-corp election requires an EIN. If you don’t have one, we apply during the engagement (takes ~15 minutes).

What about state S-corp election — is that separate? Most states accept the federal S-corp election automatically. A few (California, New Jersey, New York) require a separate state-level election. We handle this where applicable.

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If you’re clearing $80K+ in net business income and the S-corp election hasn’t been raised, the Discovery call is the right next step. We model your specific numbers and quote the engagement.