IRS Form 2553

Form 2553: Election by a Small Business Corporation

A plain-English guide to IRS Form 2553 — what it's for, who files it, when it's due, and how to complete it.

Form number2553
Official nameElection by a Small Business Corporation
CategoryBusiness
Typically due~2 months 15 days into the tax year
Official IRS Form 2553 (PDF)

What is Form 2553?

Form 2553 is how a corporation or LLC elects to be taxed as an S corporation, so profits pass through to owners instead of facing corporate tax.

2553 is the election that turns a corporation or LLC into an S corp for tax purposes. Timing is strict: to take effect for the current year, you generally file within about 2 months and 15 days of the year's start. Miss it and the election usually applies to next year instead.

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Who files it

Eligible small businesses that want S corporation tax treatment.

When it's due

Form 2553 is generally due ~2 months 15 days into the tax year. Deadlines can move for weekends and holidays, so confirm the exact date for the current year on IRS.gov.

Key lines and parts

Here's what you'll actually fill in on Form 2553:

  • Entity information and EIN
  • Effective date of election
  • Shareholder consents and signatures
  • Selected tax year

How to file

File within about 2 months and 15 days of the start of the tax year the election should take effect (late-election relief is often available).

Common mistakes & penalties

Every shareholder must consent and sign — one missing signature invalidates the election. The good news is the IRS offers late-election relief in many cases if you have reasonable cause, so a missed deadline isn't always fatal.
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Frequently asked questions

What is IRS Form 2553?

Form 2553 is how a corporation or LLC elects to be taxed as an S corporation, so profits pass through to owners instead of facing corporate tax.

Who has to file Form 2553?

Eligible small businesses that want S corporation tax treatment.

When is Form 2553 due?

Form 2553 is generally due ~2 months 15 days into the tax year. Always confirm the current year's date on IRS.gov, since deadlines shift for weekends and holidays.

What's the most common mistake with Form 2553?

Every shareholder must consent and sign — one missing signature invalidates the election. The good news is the IRS offers late-election relief in many cases if you have reasonable cause, so a missed deadline isn't always fatal.