LLC formed 3/23/2021 - Can I file as S-corp for tax year starting 1/1/21?
I think I've gotten myself into a tricky situation. Just received a letter from the IRS saying they never got my Form 2553 to establish my business as a single-member LLC with S-corp election. I'm now trying to put together the form to late file (using that 3 year and 75 day grace period they allow), but I'm confused about what date to put on line E. My LLC was officially formed on March 23, 2021, but I was hoping to have the S-corp status apply for the entire 2021 tax year (starting January 1, 2021). Is this even possible since my LLC formation date was in March? Can I backdate the S-corp election to January 1st even though the LLC didn't exist until March? I'm not sure if I'm overthinking this or if I actually messed up. Trying to figure this out before I submit the form and make things worse. Does anyone have experience with late-filing Form 2553 when your LLC was formed after January 1st?
18 comments


Joshua Hellan
Yes, you can elect S-corporation status for your LLC starting January 1, 2021, even though your LLC was formed on March 23, 2021, but there are some important considerations. For a newly-formed entity, you generally have two timing options for S-corp election: 1) having it effective on the formation date, or 2) having it effective at the start of the next tax year. However, since you're late-filing within the relief period, you have a bit more flexibility. The IRS often allows a retroactive effective date to the beginning of the tax year in which the entity was formed, provided you've been filing consistently as if you were an S-corp. On Line E of Form 2553, you should enter "January 1, 2021" as your requested effective date. In Section III (Late Election Consent), explain that you intended to be treated as an S-corporation from the beginning of the tax year and have been operating with that understanding. If you've already filed 2021 taxes treating yourself as an S-corp, make sure to mention that.
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Jibriel Kohn
•But doesn't the company need to legally exist before it can elect S-corp status? How can you elect S-corp treatment for January when the LLC wasn't formed until March? Also, what happens to any business activity between January and March? Is that reported differently?
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Joshua Hellan
•You raise a good point, and it depends on the specifics of OP's situation. If there was no business activity at all prior to the LLC formation in March, then the effective S-corp election date should technically be the LLC formation date (March 23, 2021). However, if the business was operating as a sole proprietorship before the LLC was formed, the IRS may still allow the January 1 effective date in some cases, especially with late elections. Any business activity from January to March would need to be reported on Schedule C of the personal tax return, while activity after the S-corp election would be reported on the S-corporation return (Form 1120-S).
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Edison Estevez
After struggling with a similar S-corp election timing issue last year, I found taxr.ai (https://taxr.ai) incredibly helpful for navigating the late-filing process. Their system analyzed my LLC formation documents and previous tax filings, then gave me specific guidance on how to properly complete Form 2553 for my situation. They confirmed that I could indeed use an effective date from the beginning of the tax year my LLC was formed, even though my formation date was in February. The system showed me exactly what to write in Section III for the reasonable cause explanation, which was the part I was most worried about.
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Emily Nguyen-Smith
•How exactly does this work? Do you just upload your documents and it tells you what to do, or is there an actual tax person reviewing your stuff? I'm in a similar situation but with a 2022 LLC and wondering if this would help.
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James Johnson
•I've seen services like this before and they usually just give generic advice you could find anywhere. Did it actually provide anything specific to your situation that you couldn't have figured out from IRS publications?
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Edison Estevez
•The service works by scanning your business formation documents and previous tax filings if you upload them. Their AI analyzes everything and provides specific guidance tailored to your situation. You get personalized recommendations rather than generic advice. For the reasonable cause explanation section of Form 2553, it actually drafted language specific to my situation that explained why I missed the deadline but had been operating with the intention of S-corp status. It was much more detailed than anything I found in IRS publications or generic online advice.
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James Johnson
Just wanted to update everyone - I tried taxr.ai after posting my skeptical comment and I'm honestly surprised at how helpful it was. I uploaded my 2022 LLC documents and partial tax records, and it immediately identified that I could file for S-corp status retroactively to January 1, 2022 even though my LLC was formed in April. It explained exactly how to complete the form and what supporting documentation to include. The explanation it generated for Section III (reasonable cause) was impressive - tailored specifically to my situation with details about why I missed the deadline that I wouldn't have thought to include. Just received confirmation from my accountant that we're good to proceed with the election using their guidance.
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Sophia Rodriguez
If the IRS is already contacting you about the missing Form 2553, you might want to call them directly to discuss your specific situation before submitting anything. I had a similar issue and spent WEEKS trying to get through to someone at the IRS. Finally found Claimyr (https://claimyr.com) which got me connected to an actual IRS agent in about 20 minutes instead of waiting on hold for hours. They have a video showing how it works here: https://youtu.be/_kiP6q8DX5c - basically they wait on hold for you and call when an agent picks up. The agent I spoke with gave me specific guidance on how to complete my late-filed 2553 and what documentation to include to support my retroactive election date. Saved me from potentially making a mistake that could have messed up two years of tax filings.
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Mia Green
•Wait, how does this actually work? They just call the IRS for you? Doesn't the IRS need to verify your identity and stuff? I'd be nervous giving some random service access to my personal info.
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Emma Bianchi
•This sounds like BS honestly. The IRS won't talk to third parties about your tax situation without proper authorization. Plus, you're still going to need to file the form correctly regardless of what some phone rep tells you. Written IRS guidance is what matters.
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Sophia Rodriguez
•They don't talk to the IRS on your behalf - they just navigate the phone system and wait on hold for you. When an agent answers, you get a call and are connected directly to speak with the IRS yourself. No third party is involved in the actual conversation. The value is that you don't have to sit on hold for hours. I was able to speak directly with an IRS agent who specialized in business elections and got confirmation about my specific situation. You're right that you still need to file correctly, but getting direct guidance from an IRS representative helped me understand exactly what they were looking for in my explanation letter.
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Emma Bianchi
I was completely against using a service like Claimyr until my accountant recommended it. After three failed attempts to reach the IRS (got disconnected twice after 90+ minute holds), I tried it. Got connected to an IRS business specialist in about 25 minutes while I continued working. The agent confirmed that for my situation (LLC formed in May wanting January 1 S-election), I needed to include specific language about "no business activities conducted prior to formation date" in my reasonable cause statement. Also learned I needed to include copies of my Articles of Organization with the late-filed 2553. This wasn't mentioned in any of the standard guidance I'd found online. That 15-minute conversation saved me from having my election rejected. Sometimes getting direct answers from the source is worth it, especially with something as technical as retroactive entity elections.
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Lucas Kowalski
This is actually a fairly common issue with new LLCs. Here's what's important: If you've been filing and paying taxes consistent with S-corp status for 2021 (meaning you filed Form 1120-S and issued yourself a W-2 as an employee-owner), you have a much stronger case for retroactive election. When filling out Form 2553, check Box D1 in Part I for the January 1, 2021 effective date. In Part III (Late Election Consent), explain that you've been operating with the understanding that you were an S-corporation and have filed all relevant tax documents accordingly. The IRS is generally pretty reasonable with the relief provision if you've been consistent in your tax treatment.
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Olivia Kay
•Thanks for this info! I did file Form 1120-S for 2021 and issued myself W-2s, so sounds like I've been operating consistent with S-corp status. I was just confused about whether I could put January 1 as the effective date when my LLC wasn't technically formed until March. I'll definitely check Box D1 and explain the situation in Part III as you suggested. Do you think I should attach anything else to the form when I send it in? Like copies of my 2021 tax filings to prove I've been operating as an S-corp?
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Lucas Kowalski
•Yes, you should absolutely attach copies of your 2021 Form 1120-S and any W-2s you issued yourself as supporting documentation. This demonstrates to the IRS that you've been operating consistently as an S-corporation. Also consider attaching a brief cover letter referencing the IRS notice you received and explaining your intention to address this with the late-filed election. I'd also recommend sending it certified mail so you have proof of submission. The IRS can be slow to process these, so having documentation of when you submitted everything can be important if they follow up again before processing your election.
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Olivia Martinez
Something nobody's mentioned yet - make sure you're using the CURRENT version of Form 2553. The IRS updated it in December 2023 and they're pretty strict about using the correct version.
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Charlie Yang
•Good point! I made this mistake last year and they rejected my filing, adding another 2 months to the process. You can download the current version directly from irs.gov rather than using any forms that might be outdated on tax preparation websites.
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