To find out if your LLC is taxed as an S corp, look for two documents in your business files: IRS Form 2553, the election form, and IRS Notice CP261, the acceptance letter. If those are missing, check what federal return your LLC has been filing, pull an entity transcript from your IRS Business Tax Account online, or call the IRS Business and Specialty Tax Line at 800-829-4933. An LLC can exist for years without anyone in the business being sure which tax status it actually holds, because the LLC itself is a state-level legal structure while “S corporation” is a separate federal tax classification the IRS assigns only after a specific election is filed and accepted.
Why the Question Is Not Obvious
The IRS does not have a dedicated tax category for LLCs. It assigns a default classification based on the number of owners: a single-member LLC is treated as a disregarded entity and reported on Schedule C of the owner’s Form 1040,1Internal Revenue Service. Single Member Limited Liability Companies and a multi-member LLC defaults to partnership taxation on Form 1065.2Internal Revenue Service. LLC Filing as a Corporation or Partnership S corp treatment only exists if someone filed Form 2553 for your LLC and the IRS accepted it.3Internal Revenue Service. Instructions for Form 2553 The LLC keeps its state-level legal protection either way; only the federal tax treatment changes.
One quirk that trips people up: an LLC electing S corp status does not have to separately file Form 8832. Filing Form 2553 alone is enough to treat the LLC as both a corporation and an S corporation on the same effective date.3Internal Revenue Service. Instructions for Form 2553 So the paper trail you’re looking for is Form 2553 and the IRS response to it, not a chain of separate elections.
Check Your Business Records First
Most owners can settle the question in a few minutes with what’s already in a filing cabinet or a cloud folder.
Form 2553 and the CP261 Acceptance Letter
Form 2553, Election by a Small Business Corporation, is the document that creates S corp status. A signed copy should be in your business records if the election was ever made. The form requires the consent signatures of every owner, listed as “shareholders,” so it could not have been filed without each owner knowing.4Internal Revenue Service. Form 2553 – Election by a Small Business Corporation
Finding Form 2553 alone isn’t the whole answer. The definitive proof is IRS Notice CP261, the letter the IRS mails after accepting the election. It states the effective date of your S corp status and reminds you of key obligations, including paying shareholder-employees a reasonable salary.5Internal Revenue Service. CP261 Notice – S Corporation Election Acceptance If you have the CP261, your question is answered. If you have a Form 2553 but no CP261, the election may have been rejected or may still be pending, and you’ll need to verify with the IRS.
What Your Recent Returns Say
Look at what federal return your LLC has actually been filing. An LLC taxed as an S corporation files Form 1120-S and issues a Schedule K-1 to each owner. A K-1 from an S corp specifically notes that your share of income is not subject to self-employment tax, which distinguishes it from a partnership K-1.6Internal Revenue Service. 2025 Shareholder’s Instructions for Schedule K-1 (Form 1120-S) If your accountant has been filing 1120-S returns, that is strong evidence the S election is in place.7Internal Revenue Service. S Corporations
If your LLC has been filing Form 1065 as a partnership, or you’ve been reporting the business on Schedule C of your personal return, then S corp status either was never elected or was terminated at some point. The return your LLC actually files each year is one of the most reliable signals you have.
Pull an Entity Transcript From the IRS
When your paper records are incomplete or you inherited a business without a clean file, go straight to the source. The IRS offers an entity transcript that shows the filing requirements tied to your EIN, including whether the business is classified as a single-member LLC, a multi-member LLC, or a corporation filing Form 1120-S.8Internal Revenue Service. Get a Business Tax Transcript
You can view, print, or download this transcript through your IRS Business Tax Account online.9Internal Revenue Service. Business Tax Account Setting up the account requires identity verification, so have your EIN and personal identification ready. Once inside, the entity transcript lists the forms the IRS expects your business to file. That’s a direct readout of how the IRS classifies your LLC.
Call or Visit the IRS
If the online account isn’t workable, you can confirm your classification with a live IRS representative.
The Business and Specialty Tax Line
Call 800-829-4933.10Internal Revenue Service. Telephone Assistance Contacts for Business Customers Before you dial, have your LLC’s full legal name, its EIN, the date the business was formed, and the name and Social Security Number of an authorized officer or member. The representative can confirm whether a valid Form 2553 is on file and tell you the effective date of any S corporation election.
If you’re not the owner or an authorized contact, the person calling needs authorization on file. Form 8821, Tax Information Authorization, lets a third party receive and inspect tax information but nothing more. Form 2848, Power of Attorney and Declaration of Representative, goes further, allowing a tax professional to represent you before the IRS and advocate on your behalf.11Internal Revenue Service. Preparation of Forms 2848 and 8821 and Their Uses For a simple status check, Form 8821 is enough.
Taxpayer Assistance Center
You can also verify in person at a local IRS Taxpayer Assistance Center. Appointments must be scheduled by phone in advance. Bring a current government-issued photo ID, your EIN, and a copy of a prior year’s return if you have one.12Internal Revenue Service. Contact Your Local IRS Office The IRS may cancel your appointment if you check in more than 15 minutes late.
If You Find Out the Election Was Never Made
Sometimes the answer to the question is no, and it comes as a surprise. An owner assumes an accountant filed Form 2553 years ago; the IRS has no record of it. You have two paths from there.
The first is late election relief. The IRS allows retroactive S corp elections if the effective date you’re requesting falls within the last three years and 75 days, your LLC intended to be an S corporation and was otherwise eligible, and it failed to qualify solely because the election wasn’t filed on time. Every owner must have already reported income consistently with S corp treatment for the year in question and every year since.13Internal Revenue Service. Late Election Relief You apply by filing Form 2553 with a reasonable cause statement attached. If your returns went in as a partnership or sole proprietorship, you won’t qualify, because relief requires the returns to already reflect S corp treatment.
The second path is to file Form 2553 for the current or upcoming tax year. The deadline is no later than two months and 15 days after the beginning of the tax year you want the election to take effect, or any time during the preceding tax year.14Office of the Law Revision Counsel. 26 USC 1362 – Election; Revocation; Termination For a calendar-year LLC, that means Form 2553 must be filed by March 15 of the year you want S corp treatment to begin.