Where to deduct 1065 K-1 Box 13 code on my tax return?
So I just got this 2018 1065 K-1 from a business investment I completely forgot about. It has some stuff in Box 13 with a code that I have no clue what to do with. I'm trying to get my 2024 taxes done before the deadline and this showed up in my mail last week! I think it's from that restaurant venture my cousin talked me into investing like $8,000 in back in 2018. The business actually closed down in 2019 but apparently they're just now sending out these K-1 forms? I'm using TurboTax and have no idea where to enter this information or if I even need to since it's from so long ago. Do I need to amend previous returns? Will this affect my current filing? I'm completely lost and tax day is coming up fast. Has anyone dealt with late K-1 forms from partnerships before?
28 comments


Madison Tipne
The Form 1065 K-1 is a partnership tax form that reports your share of income, deductions, credits, etc. from a partnership. Box 13 typically contains various codes for different types of information that would be relevant to your personal tax return. Since this K-1 is from 2018, you technically should have reported this information on your 2018 tax return. If the amounts are significant enough to change your tax liability for 2018, you might need to file an amended return (Form 1040-X) for that tax year. The statute of limitations for amending returns is generally three years from the original filing date, but there are exceptions. For Box 13 specifically, you'd need to check what code is listed. Each code corresponds to different types of deductions or information that would go on different schedules of your tax return. Without knowing the specific code, it's hard to tell you exactly where it should be reported.
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Holly Lascelles
•Thanks for the info. The code is "W" in Box 13. Does that mean anything to you? Also, if the business closed in 2019, do I still need to worry about this now in 2025?
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Madison Tipne
•Code W in Box 13 represents Section 743(b) basis adjustment. This is a specialized adjustment related to the basis of partnership assets when partnership interests are transferred. It typically doesn't require immediate action on your individual return but affects your basis in the partnership. Since the business closed in 2019 and we're now in 2025, you're likely past the standard three-year amendment period for 2018 returns. However, if this adjustment results in a significant tax change, you might still want to consult with a tax professional. The real impact of this would have been on how you reported the final disposition of your partnership interest when the business closed in 2019.
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Malia Ponder
I had a similar issue with an old K-1 that showed up years later. I was totally confused about what to do with it until I found this AI tax tool called taxr.ai that helped me figure out exactly what to do with these random tax forms from the past. I uploaded the K-1 and answered a few questions, and it gave me a complete breakdown of what each box and code meant and whether I needed to file an amended return. The tool analyzed all the codes (including those Box 13 codes which are super confusing) and actually explained that in my case, I didn't need to amend because the amounts were below certain thresholds. Saved me from paying an accountant just to tell me I didn't need to do anything! You might want to check out https://taxr.ai if you're trying to figure out what to do with this old form.
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Kyle Wallace
•How does this tool work with prior year forms? Like, does it know the tax laws from previous years? I have some old K-1s from 2020 that I'm not sure were handled correctly.
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Ryder Ross
•Sounds interesting but kinda skeptical. How much does it cost? Most of these tax tools end up being subscription traps that charge you for every little thing.
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Malia Ponder
•The tool actually has all the historical tax rules loaded in, so it knows exactly how different forms should have been handled in previous tax years. It's especially helpful for forms like K-1s where the rules can change year to year. For your 2020 forms, it would apply the tax rules from that specific year. There's a free analysis option that will tell you what the forms mean and if you need to take action. They only charge if you need more detailed help or document preparation. I didn't pay anything to find out I didn't need to amend my returns, which was a relief since I was worried about potential penalties.
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Kyle Wallace
Just wanted to update about using taxr.ai for my old K-1 situation I mentioned. It was surprisingly helpful! I uploaded my 2020 K-1s and the system immediately identified some deductions my previous tax preparer had missed. The analysis showed exactly where each code should have been reported and calculated the potential refund from filing an amended return. The best part was how it explained everything in plain English instead of tax jargon. I learned that Box 13 codes each have specific places they need to be reported on different schedules. For anyone dealing with confusing partnership forms from past years, it's definitely worth checking out. Ended up filing an amended return and expecting about $740 back that I would have never known about!
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Gianni Serpent
If you're still trying to figure out what to do with that old K-1, I had a similar situation and ended up needing to talk to someone at the IRS to confirm whether I needed to amend. Tried calling them for THREE DAYS straight and couldn't get through - kept getting disconnected after waiting on hold forever. Finally used Claimyr to get through to an actual IRS agent. You just put in your number at https://claimyr.com and they somehow get you past the IRS phone tree and hold times. They have a video showing how it works at https://youtu.be/_kiP6q8DX5c. The agent was able to look at my record and confirm I didn't need to amend for a small K-1 from years ago since the impact was minimal. Saved me so much stress wondering if I'd get in trouble for not filing an amendment.
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Henry Delgado
•Wait, how does this actually work? Do they have some special access to the IRS or something? I've been trying to get through to ask about some penalties on my account.
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Ryder Ross
•This sounds like BS honestly. Nobody can magically skip IRS hold times. They probably just call for you and charge a fortune for the convenience.
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Gianni Serpent
•It uses their system to navigate the IRS phone tree and waits on hold for you. When an agent actually answers, it calls your phone and connects you directly to the agent. It's basically like having someone else wait on hold instead of you having to listen to that terrible hold music for hours. They do charge a fee, but it was worth it to me because I was wasting entire days trying to call myself and getting disconnected. For your penalty questions, it would definitely get you to someone who could help - that's exactly the kind of thing you need to talk to a real person about.
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Ryder Ross
Ok I need to apologize for being so skeptical earlier. After getting frustrated with trying to reach the IRS about my penalty issue, I tried Claimyr this morning. Within 45 minutes I was actually talking to a human at the IRS! I was shocked it actually worked. The agent was able to look up my account and explained that the penalty was because of a missing form from my 2023 return. They removed the penalty since it was my first time making this mistake. I would have never gotten this resolved without actually speaking to someone, and I was about to give up after trying to call for days. So yeah, sometimes it's worth paying for a service that actually works.
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Olivia Kay
Back to the original question about Box 13 code W - I'm a retired accountant and can tell you that Section 743(b) basis adjustments generally don't require immediate action on your personal return. They affect your basis in the partnership assets, which would have been relevant when you disposed of your partnership interest. Since the business closed in 2019 and you likely reported the final disposition on your 2019 return, receiving this 2018 K-1 now probably won't change much. The statute of limitations for 2018 returns has passed unless there was substantial underreporting.
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Finley Garrett
•Thank you! So if I understand correctly, this form doesn't really impact my current taxes and I probably don't need to amend my 2018 return? That's a huge relief. Would there be any reason to keep this form in my records?
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Olivia Kay
•You should definitely keep the form in your permanent tax records. Even though the statute of limitations has likely passed for your 2018 return, this form establishes your basis in the partnership which could be relevant if the IRS ever has questions about how you reported the eventual disposition of your partnership interest. Generally speaking, I advise clients to keep all K-1 forms indefinitely, along with documentation of your initial investment and any documents related to the closure of the business in 2019. These establish your complete basis history which can be important even years later if questions arise.
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Joshua Hellan
Has anyone ever used one of those online K-1 import tools with TurboTax or H&R Block for these old forms? I'm wondering if they can handle importing prior year K-1s or if you have to manually enter everything.
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Jibriel Kohn
•I tried using TurboTax's K-1 import feature for some old forms last year, and it was a mixed bag. It imported the basic info but missed some of the special codes in Box 13. I ended up having to manually verify everything anyway, which kind of defeated the purpose.
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Sofia Morales
I went through something similar with a late K-1 from an old LLC investment. The most important thing is don't panic - receiving a K-1 years late is more common than you'd think, especially when businesses are winding down operations. For your specific situation with the 2018 K-1 arriving in 2025, you're likely past the statute of limitations for amending that return unless there was significant underreporting (generally over 25% of income). Since you mentioned this was from a restaurant that closed in 2019, you probably already reported the loss from disposing of your partnership interest on your 2019 return. The Box 13 code "W" that others mentioned is indeed a Section 743(b) basis adjustment. This doesn't typically require immediate action on your personal return - it's more of an informational adjustment that affects your basis calculation. My advice: Keep the form for your records, but unless the dollar amounts are substantial (think thousands, not hundreds), you probably don't need to do anything urgent. If you're still unsure, consider getting a quick consultation with a tax professional rather than trying to figure out the complex partnership rules on your own. It's usually worth the peace of mind, especially this close to tax season.
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Miguel Ramos
•This is really helpful advice, thank you! I was definitely starting to panic thinking I was going to get in trouble with the IRS for missing this form. The amounts on the K-1 are pretty small - less than $500 total across all the boxes - so it sounds like it's probably not worth the stress of trying to amend a 6-year-old return. I'll definitely keep it with my tax records though, just in case. Really appreciate everyone's help on this!
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Amara Okafor
Just to add another perspective here - I work at a CPA firm and we see delayed K-1s all the time, especially from partnerships that are going through dissolution or bankruptcy proceedings. The fact that your K-1 is from 2018 and you're just receiving it now in 2025 isn't unusual, unfortunately. Given what others have said about the Box 13 code "W" being a Section 743(b) basis adjustment and the small dollar amounts you mentioned, you're probably in the clear. The three-year statute of limitations for amendments has definitely passed for your 2018 return. One thing I'd suggest though - double-check your 2019 return where you likely reported the final disposition of this partnership interest. Make sure you used the correct basis when calculating any gain or loss from the investment ending. The basis adjustment from this late K-1 might have affected that calculation, but again, with small amounts it's probably not material. Keep the K-1 with your permanent tax records and don't stress about it affecting your current 2024 filing. You've got enough to worry about with the current tax season!
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Amina Sy
•This is exactly the kind of reassurance I needed to hear from a professional! I was definitely overthinking this whole situation. I just double-checked my 2019 return and I did report a loss when the restaurant partnership ended, though I honestly can't remember if I calculated the basis correctly at the time. Given that we're talking about small amounts and it's been so many years, it sounds like the consensus is to just keep the form and not worry about amending anything. Thanks to everyone who chimed in - this community is so helpful for navigating these confusing tax situations!
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Ethan Taylor
I'm dealing with a somewhat similar situation right now! I received a 2019 K-1 from a partnership that I thought was completely dissolved years ago. It showed up in my mailbox last month and I had that same panic about whether I needed to file amendments or if it would mess up my current tax filing. After reading through all the responses here, it sounds like late K-1s are actually pretty common when partnerships are winding down operations. The advice about checking the dollar amounts to see if it's even worth worrying about seems really practical. For anyone else in this boat - it's reassuring to see that the tax professionals here are saying these situations happen all the time and that small amounts usually aren't worth the stress of trying to amend old returns, especially when you're past the statute of limitations anyway. Thanks to everyone who shared their experiences and expertise. This thread has been super helpful for understanding how to handle these unexpected partnership forms that show up years later!
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Noah Torres
•I'm so glad I found this thread! I just received a 2020 K-1 in the mail yesterday from what I thought was a dead partnership, and I was having the exact same panic attack. Reading through everyone's experiences here has been incredibly reassuring - it sounds like these delayed K-1s are way more common than I realized, especially when partnerships are going through lengthy dissolution processes. The advice from the tax professionals about checking the dollar amounts and not stressing over small figures makes total sense. My K-1 has relatively minor amounts too, so it sounds like I'm probably overthinking this whole situation just like others have done. It's really helpful to have a community where people share these real-world tax situations that don't always fit the textbook scenarios. Thanks to everyone who contributed their knowledge and experiences - this has definitely saved me from a lot of unnecessary worry!
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Lucas Turner
I'm going through something very similar right now! Just got a 2017 K-1 in the mail from an old business partnership that I honestly forgot I was even part of. The whole situation is giving me major anxiety about whether I messed up my taxes years ago. Reading through this thread has been incredibly helpful - it's reassuring to know that delayed K-1s are apparently pretty common when partnerships are dissolving or going through complex wind-down processes. The advice from the tax professionals here about the statute of limitations and focusing on whether the dollar amounts are actually material makes a lot of sense. My K-1 has some entries in Box 13 with different codes that I have no idea how to interpret. Based on what everyone's saying here, it sounds like unless we're talking about significant amounts, it's probably not worth the stress of trying to figure out amendments for returns from so many years ago. Has anyone here dealt with multiple late K-1s from the same partnership? I'm wondering if I should expect more of these to show up in my mailbox as they work through their final paperwork. This whole experience is making me think twice about any future partnership investments!
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Giovanni Rossi
•I totally understand that anxiety! I went through the exact same thing when I got an unexpected K-1 from a partnership I'd completely forgotten about. The good news is that based on all the expert advice in this thread, it sounds like you're probably worrying more than you need to. Regarding multiple K-1s from the same partnership - yes, that can definitely happen during dissolution. Partnerships sometimes have to issue corrected or additional K-1s as they work through final accounting, especially if there were assets that took time to liquidate or if they discovered errors in previous filings. So don't be surprised if more show up. The key takeaway I'm getting from the tax professionals here is to focus on the dollar amounts. If we're talking about small figures (hundreds rather than thousands), and you're dealing with returns from 2017 that are well past the amendment statute of limitations, you're probably in the clear. Just keep the forms for your records in case any questions come up later. It's definitely making me more cautious about partnership investments too! The administrative headaches can apparently drag on for years after you think everything is settled.
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Ethan Moore
I'm dealing with almost the exact same situation! Got a 2018 K-1 in the mail last week from a partnership I invested in years ago - completely forgot about it until this form showed up. Like you, I'm scrambling to get my 2024 taxes done and this unexpected form has me stressed. After reading through all the helpful responses here, it seems like late K-1s are way more common than I thought, especially from partnerships that are winding down. The advice from the tax professionals about the statute of limitations being past for 2018 returns is really reassuring. My Box 13 also has some codes I don't understand, but based on what everyone's saying about focusing on the dollar amounts rather than panicking, I'm feeling much better about the whole situation. If the amounts are small and we're well past the amendment period, it sounds like we're probably overthinking this. Thanks to everyone who shared their experiences and expertise - this thread has been a lifesaver for understanding how to handle these surprise partnership forms! Sometimes it's just nice to know you're not alone in dealing with confusing tax situations like this.
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Ethan Anderson
•I'm in almost the exact same boat! Just received a 2018 K-1 yesterday from what I thought was a completely dead partnership - it was from a small tech startup investment that went nowhere. I had that same moment of panic thinking I'd somehow messed up my taxes from years ago. This thread has been incredibly reassuring though. It's amazing how common these delayed K-1s apparently are when partnerships are going through lengthy dissolution processes. The consistent advice from the tax professionals here about the statute of limitations and focusing on materiality rather than panicking over every small detail is exactly what I needed to hear. I'm definitely keeping the form with my tax records as everyone suggests, but it sounds like for small amounts from returns that are well past the amendment period, we're probably creating more stress for ourselves than necessary. Thanks to everyone who contributed - it's so helpful to know other people are dealing with these same unexpected partnership situations!
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