Electing S-Corp status can save an owner real money on self-employment tax, which runs 15.3 percent (12.4 percent for Social Security plus 2.9 percent for Medicare) on business profit, but the election has a deadline that trips people up every year. Miss it and you either wait until next year or ask the IRS for relief.
The good news is that the rule is specific, the form is short, and there is a well-worn path to fix a late filing.
Quick answer: To have S-Corp status apply for the current tax year, you must file Form 2553 no later than 2 months and 15 days after the start of that tax year, which is March 15 for a calendar-year business. Miss the deadline and you can still request late-election relief under Rev. Proc. 2013-30 if you had reasonable cause. Once elected, you must run payroll, pay yourself a reasonable salary, and check your state’s treatment.
What is Form 2553 and who files it?
Form 2553, Election by a Small Business Corporation, is the IRS form you file to elect S-Corp tax treatment. It is filed by an eligible entity, either a corporation or an LLC that has elected to be taxed as a corporation, that wants its income, losses, deductions, and credits to pass through to its shareholders instead of being taxed at the corporate level.
To be eligible, the business generally must:
- Be a domestic corporation or an eligible domestic LLC
- Have only allowed shareholders (individuals, certain trusts and estates; not partnerships or corporations)
- Have no more than 100 shareholders
- Have only one class of stock
- Have all shareholders consent to the election by signing the form
The form itself is short. It asks for the entity’s information, the effective date of the election, the shareholders and their consents, and the tax year the business will use. The IRS publishes the current form and line-by-line instructions for Form 2553, and background on the entity type on its S corporations page.
What is the S-Corp election deadline?
The deadline is 2 months and 15 days after the beginning of the tax year the election is to take effect. It is not tied to your income tax return due date, which is the mistake that costs owners a year.
Here is how the rule works with a concrete example. Say your tax year is the calendar year and you want S-Corp treatment to apply for all of 2026:
- Your tax year begins January 1, 2026.
- Two months after that is March 1, 2026.
- Fifteen more days brings you to March 15, 2026.
So Form 2553 is due by March 15, 2026, to be effective for the 2026 tax year. A newly formed entity uses the same rule measured from the date it first has shareholders, acquires assets, or begins doing business, whichever happens first. A business that starts on May 1 counts two months and 15 days from May 1.
File on time and the election applies to the whole year. Miss the window and, absent relief, the election does not take effect until the following tax year.
Can you file a late S-Corp election?
Yes. This is the part most owners do not know. The IRS provides a simplified path to request relief for a late election under Revenue Procedure 2013-30, which consolidated the earlier late-election relief rules into one procedure.
To use it, you generally need to show:
- The entity intended to be an S-Corp as of the effective date you want
- The only reason it is not an S-Corp is that Form 2553 was not filed on time
- You had reasonable cause for filing late and acted diligently to fix it once you noticed
- The request is made within 3 years and 75 days of the intended effective date (in most cases)
- All shareholders reported their income consistently with S-Corp status for the years involved
In practice you file Form 2553 with “FILED PURSUANT TO REV. PROC. 2013-30” written across the top and attach a statement explaining your reasonable cause. Many businesses that simply forgot to file, or assumed their formation paperwork handled it, qualify for this relief. It is not automatic, so the explanation matters.
What do you have to do once you are elected?
Electing S-Corp status is not a set-it-and-forget-it move. It creates ongoing obligations, and the biggest one starts immediately.
You must run payroll. As an owner-employee, you have to pay yourself a reasonable W-2 salary before taking tax-advantaged distributions. That means registering for payroll, withholding and depositing payroll taxes, and issuing yourself a W-2. Skipping payroll is the fastest way to lose the benefit of the election under audit. It also raises the bar on clean monthly books, because your salary, distributions, and payroll tax deposits all have to reconcile; our small business bookkeeping hub is a good starting point if your records are not yet audit-ready. Setting that salary correctly is its own decision, and we cover it in detail in what is a reasonable salary for an S-Corp owner.
You file a separate return. The S-Corp files Form 1120-S and issues a Schedule K-1 to each shareholder, who reports the passthrough income on their personal return.
The savings have to be real. The election only pays off once your profit is high enough that the self-employment tax you avoid on distributions beats the added payroll and compliance cost. Before you file, model it with our free S-Corp tax savings calculator using a salary you can actually defend.
What state quirks should you check first?
Federal S-Corp status does not automatically carry over to your state, and a few states charge enough that they change the math. Check your state before you elect:
- California charges an annual franchise tax with an $800 minimum plus a 1.5 percent tax on S-Corp net income. That state-level tax eats into federal savings, so run the numbers before electing.
- New York City does not recognize the federal S-Corp election and taxes S-Corps under its General Corporation Tax. New York State recognizes S-Corps but requires a separate state election in most cases.
- Other states may impose their own franchise tax, minimum fee, or separate election requirement. A handful do not conform at all.
The federal savings can be real, but a state-level franchise tax or non-conforming city can shrink or erase them. Confirm your state’s treatment as part of the decision, not after.
When should you not elect S-Corp status?
The election is not right for everyone. It usually does not make sense when:
- Profit is low. If net profit is modest, the payroll and filing costs can outweigh the self-employment tax you save.
- You have little residual profit after a reasonable salary. If a defensible salary absorbs most of your profit, there is little left to take as tax-advantaged distributions.
- A high-cost state offsets the savings. As above, a state franchise tax can flip the math.
- You cannot commit to payroll and compliance. The election only works if you actually run payroll and file the extra return.
FAQ
What is the deadline to elect S-Corp status for this year?
Two months and 15 days after the start of your tax year. For calendar-year businesses that is March 15. A new entity counts from when it first has shareholders, acquires assets, or begins business.
I missed the deadline. Am I out of luck for the year?
Not necessarily. If you had reasonable cause and otherwise qualify, you can request late-election relief under Rev. Proc. 2013-30, generally within 3 years and 75 days of the intended effective date.
Does my LLC need to do anything special to file Form 2553?
An LLC electing S-Corp treatment can file Form 2553 directly; the IRS treats a timely, properly completed Form 2553 as also making the underlying election to be taxed as a corporation. Check the current form instructions to confirm your situation.
Do I really have to run payroll right away?
Yes. Reasonable compensation must be paid as W-2 wages before distributions. Set up payroll as soon as the election is effective.
The bottom line
The S-Corp election deadline is 2 months and 15 days into your tax year, March 15 for calendar-year businesses, and it is not tied to your return due date. If you missed it, Rev. Proc. 2013-30 gives you a realistic path to fix it. Once elected, run payroll, pay a reasonable salary, file Form 1120-S, and check your state’s treatment before you commit.
This article is general information, not tax advice. Election eligibility, deadlines, and state treatment depend on your facts. Consult a CPA or tax professional about your situation.
If you want help deciding whether to elect, filing Form 2553, or setting up compliant S-Corp payroll and books, estimate your savings first with the S-Corp tax savings calculator, then book a discovery call to map the remote bookkeeping support that keeps the election defensible.