S-corp planning
How to Actually Elect S-Corp Status: Form 2553, Deadlines, and What Happens Next
The calculator said it's worth it. Now what? A step-by-step guide to filing Form 2553, the March 15 deadline, late election relief, and what to set up in the first month as an S-corp.
Written by Matt Reese, CPA · 6 min read · Published April 2026·Share on LinkedIn
Key Takeaways
- S-corp is a tax election, not a new legal entity. Your LLC stays an LLC — it's just taxed differently.
- To be an S-corp for the current year, file Form 2553 by March 15. Miss it and you wait until next January 1.
- The IRS offers late election relief under Rev. Proc. 2013-30 — a CPA can help you qualify if you missed the deadline.
- Once elected, you must run payroll and pay yourself a reasonable W-2 salary. No salary = IRS problem.
First: what you’re actually doing
“Electing S-corp” sounds like forming a new company. It isn’t. It’s a tax classification change. Your LLC stays your LLC — same name, same bank account, same contracts. You’re just telling the IRS to tax it differently: as a pass-through entity where only your W-2 salary is subject to payroll taxes, not all of your profit.
Think of it like changing your tax filing status. The business underneath doesn’t change. The IRS’s view of how to tax it does.
S-corp is a tax election, not a new company. Your LLC stays your LLC.
The two paths to S-corp status
| Scenario | Deadline | What to do |
|---|---|---|
| New business (just formed) | Within 75 days of formation date | File Form 2553 now, before the 75-day window closes |
| Existing business, elect for current calendar year | March 15 of that year | File Form 2553 by March 15 to be S-corp for the full year |
| Existing business, elect for next calendar year | Anytime before Dec 31 of prior year (or by March 15 of the new year) | File Form 2553 by March 15 of the year you want to start — effective January 1 |
| Missed the deadline | ASAP with late election statement | File Form 2553 with Rev. Proc. 2013-30 statement — many late elections are granted |
March 15 is not April 15
How to file Form 2553
Form 2553 is two pages. It asks for basic information about your business and the shareholders who are consenting to the S-corp election. For a single-member LLC, it’s just you.
What you need to fill it out
- Your business EIN
- Business name and address (exactly as it appears on your tax return)
- State of incorporation or organization
- Date the election takes effect (for a new election, put January 1 of the current year)
- Fiscal year — for most small businesses, this is December 31 (calendar year)
- The name, address, SSN, and signature of each shareholder (just you, in most cases)
- Number of shares owned and date acquired (for an LLC, use a percentage ownership figure)
How to file
There is no online filing option for Form 2553 as of 2025. You file by mail or fax to the IRS service center for your state. The IRS website lists the correct mailing addresses by state.
If mailing: send by certified mail with return receipt. The postmark date is your filing date — critical for the March 15 deadline. Keep the tracking confirmation and green card forever.
If faxing: use the fax number listed on the IRS website for your state. Print a confirmation page immediately and keep it.
When you hear back
The IRS sends a CP261 notice confirming the election. It can take 60–90 days to arrive. The election itself is effective from the date you filed — you don’t need to wait for the confirmation letter to start acting as an S-corp. But keep that letter permanently.
If you don’t hear back within 60 days, call the IRS Business & Specialty Tax Line (800-829-4933) to confirm receipt.
Late election relief
If you missed the deadline, IRS Revenue Procedure 2013-30 provides a streamlined path to late election relief. You file Form 2553 with an attached statement explaining:
- The entity intended to be an S-corp as of the date the election was supposed to take effect
- The entity has been reporting income consistently with S-corp status (or would have, if it had operated)
- The reason the election was late (reasonable cause — even just “I wasn’t aware of the deadline” often qualifies)
A CPA helps you draft this statement correctly. The IRS grants most of these requests — it’s worth pursuing rather than waiting a full year.
What to set up immediately after you file
The election is only half the work. What actually changes your tax bill is the payroll setup. Step one is always the salary: the IRS requires a reasonable W-2 salary before any distributions, and what counts as “reasonable” is specific to your role, industry, and revenue.
Most owners underestimate how fast the payroll setup needs to happen. If you file the election in February and your first payroll runs in March, you've lost two months of potential savings. The goal is to have payroll running within 30 days of filing.
The new tax returns you’ll file
S-corp adds a tax return. Where you used to file Schedule C with your personal 1040, you now file:
- Form 1120-S — The S-corp income tax return. Due March 15 (two months before the individual due date). You can extend to September 15. Your CPA files this.
- Schedule K-1 — Flows from the 1120-S to your personal 1040. Shows your share of S-corp income, deductions, and credits.
- California Form 100S — California S-corp return, due March 15 (with extensions available). Includes the 1.5% net income tax.
The S-corp return preparation typically costs $1,000–2,000 more than a Schedule C — this is part of the compliance cost you weighed in the calculator.
What changes, and what doesn’t
| What changes | What stays the same |
|---|---|
| You now receive W-2 wages from your own company | The LLC is the same legal entity |
| Payroll taxes apply only to your salary, not distributions | You file a personal 1040 — income still flows through to you |
| You file Form 1120-S in addition to your 1040 | Business bank accounts and contracts are unchanged |
| Profit above your salary comes out as distributions (no payroll tax) | Your CPA relationship continues — they just prepare one more return |
| California charges 1.5% of net income on Form 100S | QBI deduction is still available (with the same income thresholds) |
You might also read
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S-corp planningS-Corp Reasonable Compensation: What the IRS Actually Requires and How to Set Your Salary
The IRS requires S-corp owners to pay themselves a 'reasonable salary' — and has audit procedures to enforce it. What factors the IRS considers, how auditors typically approach S-corp compensation cases, and a practical method for setting a defensible number.
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Filing a return tells you what already happened. Planning changes what the next one looks like. Here's what the difference looks like in practice.
Frequently asked
Questions owners actually ask
- Do I need to form a new entity to elect S-corp?
- No. Your existing single-member LLC can elect S-corp taxation by filing Form 2553. The LLC remains the legal entity — only its tax treatment changes. You don't need to form a corporation unless you want to for other reasons (equity structure, investors, etc.).
- I missed the March 15 deadline. Is there anything I can do?
- Yes. IRS Revenue Procedure 2013-30 provides relief for late S-corp elections if the entity intended to be an S-corp from the election date and acted consistently (paid W-2 wages, filed returns as if it were an S-corp). A CPA helps you attach the required statement to Form 2553. Many late elections are granted — this is worth pursuing rather than waiting a full year.
- Can I set my own salary at any amount I want?
- No. The IRS requires 'reasonable compensation' — approximately what you'd pay someone else to do your job. It's not a formula, but for service businesses it typically runs 40–60% of net profit. Too low and you invite audit scrutiny. Too high and you lose the benefit of the S-corp structure. See how the IRS evaluates reasonable compensation, run the salary calculator, and discuss with your CPA before setting payroll.
- What if my profit is inconsistent month-to-month? Can I pay myself a variable salary?
- Your W-2 salary should be consistent — not tied to monthly revenue. Run payroll at a fixed amount each period (monthly or twice a month is common for owners). Then take distributions above the salary when cash allows. Distributions don't need to be regular, but the salary does.
- What does S-corp mean for California specifically?
- California follows your federal S-corp election automatically for California-registered entities. But California charges an additional 1.5% tax on S-corp net income (minimum $800/year), filed on Form 100S. This cost reduces your net savings compared to other states. Run the breakeven calculator with the California toggle enabled.
Take the next step
Turn tax questions into a plan. Talk with Matt or see how we work with operating business owners.
Educational content only.This article is for informational purposes and does not constitute tax, legal, or investment advice. Every owner’s facts are different; consult a qualified CPA and advisor before acting. Tax and accounting services are provided through Matt Reese, CPA; investment advisory services are provided through Measured Risk Portfolios, a registered investment adviser. Matt Reese, CPA and Measured Risk Portfolios are separate entities; clients are not required to engage both.