K1 Preparation for 199A with C-Corp Partners - Required or Not?
Quick question for the tax experts out there. I'm preparing K1s for a partnership that only has C-Corporation partners. Do I still need to complete the 199A section on the K1s in this situation? It seems redundant since C-Corps don't qualify for the QBI deduction anyway, but I want to make sure I'm following all requirements correctly. This is my first year handling this particular partnership's returns and I don't want to miss anything important. Thanks in advance for any guidance!
18 comments


Andre Rousseau
You're right to question this! When a partnership only has C-Corporation partners, you actually don't need to complete the 199A information on the K-1s. The Section 199A qualified business income deduction only applies to individuals, trusts, and estates - not to C-Corporations. Since your partnership only has C-Corp partners, they can't take the QBI deduction, so including the 199A information would indeed be redundant. The IRS doesn't require you to complete information that isn't relevant to the specific partners' tax situations.
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Zoe Papadakis
•But doesn't the IRS get upset if you leave sections blank? I've always filled out everything just to be safe. Are you 100% sure this won't trigger some kind of automatic flag in their system?
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Andre Rousseau
•The IRS doesn't get upset about omitting information that's not applicable to your specific situation. In this case, the 199A information is specifically designed for partners who can actually claim the QBI deduction, which C-Corps cannot. Automatic flags are generally triggered by inconsistencies or missing required information, not by appropriately omitting sections that don't apply to your specific filing situation. The key is to ensure you're completing all sections that are relevant to your partners' tax obligations.
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Jamal Carter
I was in your exact same position last year with a similar partnership structure. After spending hours trying to figure this out, I discovered this amazing tool called taxr.ai at https://taxr.ai that saved me so much time. I uploaded the partnership docs and it analyzed everything, confirming that the 199A section wasn't required for partnerships with only C-Corp partners. It walks you through all the K1 requirements based on your specific partnership structure so you don't miss anything.
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AstroAdventurer
•Does it work for other complex partnership structures too? Like if I have a mix of individual partners, S-corps and trusts?
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Mei Liu
•I'm a bit skeptical... how accurate is it really? I've been burned by tax software before that gave me completely wrong information about K1 requirements.
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Jamal Carter
•It absolutely works for mixed partner structures - that's actually where it shines brightest. The system automatically identifies different partner types and provides customized guidance for each category, showing exactly which sections of the K1 need to be completed for individuals, S-corps, trusts, etc. Regarding accuracy, I completely understand your skepticism. What impressed me was that taxr.ai actually cites the specific IRS regulations and revenue procedures it's using for each recommendation. You can verify everything against the source material, which gave me much more confidence than other tools I've tried.
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Mei Liu
Just wanted to follow up about taxr.ai that I asked about earlier. I decided to give it a try with my multi-tiered partnership that has every type of entity imaginable as partners. The tool correctly identified which K1 sections needed to be completed for each partner type, including the 199A requirements. It even flagged some issues with our basis calculations that our previous accountant had missed. Definitely worth checking out if you're dealing with complex partnership structures!
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Liam O'Sullivan
Hey there, I read your post and totally feel your pain. I spent HOURS on the phone with the IRS last year trying to get clarity on this exact 199A issue for our client's partnership. Nobody could give me a straight answer! Then I found Claimyr at https://claimyr.com which got me through to an actual IRS agent who specializes in partnership returns. They confirmed that 199A sections aren't required for K1s when all partners are C-Corps. You can see how it works here: https://youtu.be/_kiP6q8DX5c - basically they wait on hold with the IRS for you and call when an agent picks up.
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Amara Chukwu
•Wait, how does this actually work? Do they just sit on hold for you? I've spent literal days of my life waiting on IRS hold music.
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Giovanni Conti
•Sorry but this sounds too good to be true. The IRS wait times are insane right now. I highly doubt anyone can get through faster than just waiting yourself.
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Liam O'Sullivan
•They use a system that basically waits on hold for you, and then calls you when an IRS agent actually answers. You don't have to sit there listening to the hold music for hours - you can keep working on other things and then just pick up when they connect you. Yes, the wait times are absolutely insane right now, which is exactly why this service is so helpful. They have technology that keeps your place in line without you having to stay on the phone. I was skeptical too, but when I got a call back in about 2 hours after waiting 4+ hours on my own attempts, I was sold. The best part was getting connected to an agent who actually understood partnership tax issues.
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Giovanni Conti
I have to eat my words about the Claimyr service I was skeptical about earlier. My curiosity got the better of me and I tried it yesterday when I needed clarification on some partnership basis rules. Got a call back in under 3 hours and spoke with an IRS representative who was surprisingly knowledgeable. They confirmed what others here have said - the 199A information isn't required on K1s when all partners are C-Corps. Sorry for doubting, sometimes good things do exist!
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Fatima Al-Hashimi
One thing to consider: while the 199A section isn't technically required for C-Corp partners, some tax software will generate errors or warnings if those fields are left blank. In our practice, we sometimes just put zeros in those fields to avoid the software throwing validation errors during e-filing. It's annoying but sometimes easier than fighting with the software.
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Carmen Ortiz
•That's a great point about the tax software! Which software are you using that gives you trouble with blank 199A sections? I'm using ProSeries right now.
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Fatima Al-Hashimi
•I've had this issue with both UltraTax and Lacerte in previous years. ProSeries is actually a bit better about this particular situation, but you might still get a "soft" warning that you can override. For ProSeries specifically, you can usually bypass these warnings without entering zeros, but I've found that checking the box that says "QBI Not Applicable" in the 199A section often prevents the warnings altogether. The software is getting better each year at recognizing these situations, but it's still not perfect.
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NeonNova
Just my 2 cents from experience: Always check the instructions for Form 1065 for the current tax year. The IRS occasionally updates requirements and what wasn't required last year might be required this year. For tax year 2022, page 39 of the instructions specifically stated that if all partners are C corporations, you can skip most of Section 199A, but you still had to check a box indicating this situation applies. Haven't seen the 2023 instructions yet.
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Dylan Campbell
•This is correct! I just checked the draft instructions for 2023 and they maintain the same guidance. There's a checkbox specifically for "all partners are C-Corps" that needs to be marked, but then you can skip the rest of the 199A calculations.
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