How to File an LLC as an S Corp Using Form 2553

To file an LLC as an S corp using Form 2553, submit a completed and unanimously signed form to the IRS by the 15th day of the third month of the tax year you want the election to take effect. A timely Form 2553 handles both steps at once: the IRS treats it as an election to be classified as a corporation and as the S corp election itself, so no separate Form 8832 is needed.¹ The LLC keeps its state-law liability protection; only the federal tax treatment changes.

Confirm the LLC Qualifies Before You File

The Internal Revenue Code draws hard lines around who can be an S corporation. Miss any one of them and the election is invalid, so verify each before putting the form in the mail.

The LLC must be a domestic entity organized in the United States.
It can have no more than 100 shareholders. Family members (as defined by the IRS) count as one shareholder for this cap.
Every owner must be an individual, a qualifying estate, or a qualifying trust. Partnerships, corporations, and nonresident aliens cannot hold an interest.
There can be only one class of stock, meaning every member has identical rights to distributions and liquidation proceeds. Different voting rights alone are fine; different economic rights are not.

Financial institutions using the reserve method for bad debts, insurance companies taxed under Subchapter L, and domestic international sales corporations are categorically ineligible regardless of size or ownership.²

If a trust holds an ownership interest, confirm it fits one of the qualifying types. A Qualified Subchapter S Trust (QSST) must distribute all income to a single U.S. citizen or resident beneficiary. An Electing Small Business Trust (ESBT) allows multiple beneficiaries, but each potential current beneficiary counts toward the 100-shareholder cap. Grantor and revocable trusts qualify while the grantor is alive.²

You Do Not Need Form 8832 First

An LLC is not a corporation by default, which leads many owners to assume they must first file Form 8832 (Entity Classification Election) to be treated as a corporation, then file Form 2553 for S status. That’s wrong. A timely, properly completed Form 2553 is deemed an automatic election to be classified as a corporation.¹ Filing Form 8832 separately is unnecessary and can create timing problems.

Complete Form 2553

Form 2553 is titled “Election by a Small Business Corporation,” and it’s the only document the IRS needs to process the election.³ Most rejections come from errors in the shareholder section, so slow down there.

The top of the form asks for business basics: the Employer Identification Number, the LLC’s legal name exactly as it appears in your formation documents, the state of organization, and the formation date. The formation date must match what the Secretary of State has on file.⁴

For each member, list the full name, physical address, Social Security number or taxpayer identification number, ownership percentage, and the date they acquired their interest. Because an LLC doesn’t issue stock, enter ownership percentages rather than share counts.⁴

Every member must sign and date the form. Consent has to be unanimous. One missing signature and the IRS sends it back. If a member lives in a community property state and their spouse has a community interest in the LLC or its income, that spouse must sign too.⁴ Verify that ownership percentages add up to exactly 100 percent and that every identification number is right. Discrepancies delay processing.

The Filing Deadline

Timing is tight. For the election to take effect for the current tax year, file Form 2553 either:

Any time during the preceding tax year, or
On or before the 15th day of the third month of the current tax year. For a calendar-year LLC, that means by March 15.

A brand-new LLC with a short initial tax year of two and a half months or less must file within two months and 15 days of its formation date to have the election apply to that first year.⁵ Miss these windows and the election generally won’t take effect until the following tax year.

Where and How to Submit

The IRS accepts Form 2553 only by mail or fax, and the correct destination depends on the LLC’s principal place of business.

LLCs in the eastern half of the country, from the Great Lakes and Appalachian states up through New England, mail to the Kansas City, MO service center or fax to 855-887-7734. LLCs in the western and southern states, from Texas and the Plains through the West Coast, mail to Ogden, UT or fax to 855-214-7520.⁶

Use certified mail with return receipt if you mail it. The deadline is based on when the form arrives, so that receipt is your proof if the IRS ever claims the filing was late. Faxing produces a transmission confirmation that serves the same purpose.

What Happens After You File

There’s no instant confirmation. The IRS processes Form 2553 and mails a CP261 Notice when the election is accepted. That notice is the official proof of S corp status. Keep it permanently.⁷

Processing generally takes about 60 days. If you checked box Q1 in Part II (requesting a specific fiscal tax year), add roughly 90 days because the IRS issues a separate ruling letter. If you haven’t heard back within two months of filing, or five months when box Q1 was checked, call the IRS at 1-800-829-4933 to check status.⁸

If You Missed the Deadline

A late filing isn’t necessarily fatal. Revenue Procedure 2013-30 offers automatic relief without a private letter ruling if all of the following are true:

The LLC was eligible for S corp status and intended to make the election.
The only reason it didn’t qualify is that the form wasn’t filed on time.
The LLC and all its members reported income consistently with S corp treatment for every year since the intended effective date.
Fewer than three years and 75 days have passed since the intended effective date.

You still file Form 2553, but attach a statement explaining reasonable cause for the delay. All shareholders must sign, and the LLC must have been qualified during the relevant tax years.⁹ Make the reasonable-cause statement specific. Documented explanations that show why the delay happened and that you filed once the obstacle was resolved carry more weight than a general statement about not knowing the deadline.

What the Election Commits You To

Once the CP261 arrives, several ongoing obligations begin that didn’t exist when the LLC was a disregarded entity or partnership.

Form 1120-S and Schedule K-1 Each Year

The LLC must file Form 1120-S (U.S. Income Tax Return for an S Corporation) annually. For calendar-year filers, the return is due March 15, shifting to the next business day if that falls on a weekend or holiday. The late-filing penalty is $255 per month or partial month, per shareholder. A two-member LLC that files three months late owes $1,530 even if no tax is due.¹⁰ Along with Form 1120-S, the LLC issues a Schedule K-1 to each member reporting their share of income, deductions, and credits, which members report on their personal returns whether or not the money was actually distributed.¹¹

Reasonable Salary and Payroll

Any member who works in the business must be paid a reasonable salary through payroll before taking distributions. The IRS has said that S corporations “should not attempt to avoid paying employment taxes by having their officers treat their compensation as cash distributions, payments of personal expenses, and/or loans rather than as wages.”¹² There’s no formula. Courts weigh the time devoted to the business, training and responsibilities, what comparable businesses pay for similar roles, and the company’s dividend history. Setting the salary artificially low is the single biggest audit trigger for S corp owners. Running payroll also means quarterly employment tax returns and the employer’s share of FICA.

State Treatment

Not every state automatically honors the federal S corp election. Some states impose corporate-level taxes on S corporations, and a handful require a separate state election filing. Check with the state department of revenue or franchise tax authority, because the federal election alone may not deliver the treatment you expect on the state return.

Undoing the Election Later

If the S corp structure stops working, revocation is available with consent from shareholders holding more than 50 percent of the ownership. A revocation filed on or before the 15th day of the third month of the tax year takes effect on the first day of that year; later revocations take effect the following year unless a later date is specified. One consequence to know before you file in the first place: once the election is revoked or lost, the LLC generally cannot re-elect S corp status for five tax years without IRS permission, and that waiting period applies to successor entities.⁵

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Internal Revenue Service. Entities 3
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Office of the Law Revision Counsel. 26 USC 1361 – S Corporation Defined
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Internal Revenue Service. About Form 2553, Election by a Small Business Corporation
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Internal Revenue Service. Instructions for Form 2553
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Office of the Law Revision Counsel. 26 USC 1362 – Election; Revocation; Termination
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Internal Revenue Service. Where to File Your Taxes (for Form 2553)
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Internal Revenue Service. Understanding Your CP261 Notice
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Internal Revenue Service. Instructions for Form 2553
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Internal Revenue Service. Late Election Relief
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Internal Revenue Service. 2025 Instructions for Form 1120-S
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IRS. 2025 Shareholders Instructions for Schedule K-1 (Form 1120-S)
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Internal Revenue Service. Wage Compensation for S Corporation Officers