Mailed partnership 1065 return but forgot Schedule B2 - how to correct this mistake?
Title: Mailed partnership 1065 return but forgot Schedule B2 - how to correct this mistake? 1 I just sent off my partnership's 1065 return to the IRS last week, with all the K-1s for our seven partners included. Everything seemed fine until I was reviewing copies of what I sent and realized I completely forgot to include Schedule B-2, which we've filed every year since we started the business. Now I'm not sure what the best approach is to fix this oversight. Should I immediately mail just the Schedule B-2 separately before they even process my original submission? Or is it better to wait for them to contact me asking for the missing form? I've never made this kind of mistake before with our partnership return and I'm worried about potential penalties or having the entire return delayed. Does anyone have experience with this situation or know the proper procedure for sending in a forgotten form for a 1065 that's already been mailed?
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Ryan Young
15 You have a couple of options here, and fortunately, this isn't an uncommon situation. Since you've already mailed your 1065, the simplest approach is to send in the Schedule B-2 as soon as possible with a brief cover letter explaining that it was inadvertently omitted from your original filing. Make sure to include your EIN and tax year on both the letter and the Schedule B-2. Don't wait for the IRS to contact you - that will only delay processing. When they receive forms with missing schedules, they typically put the return aside and send a notice requesting the missing information, which can delay processing by weeks or months. If you're really concerned, you could also consider filing an amended return (Form 1065X), but that's probably overkill for just a missing schedule, especially if nothing on the schedule affects the numbers reported on the main return.
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Ryan Young
•8 Thanks for the advice! When I send the Schedule B-2 with a cover letter, should I mark the envelope in any special way? Like "ADDITIONAL INFORMATION" or something similar? I'm worried it might get lost in the shuffle at the IRS processing center.
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Ryan Young
•15 Yes, marking the envelope with "ADDITIONAL INFORMATION FOR FORM 1065" along with your EIN clearly visible is a good idea. I'd also recommend sending it certified mail with return receipt so you have proof of when it was received. For the cover letter itself, keep it simple - include your partnership name, EIN, tax year, and a brief statement like "Enclosed please find Schedule B-2 which was inadvertently omitted from our Form 1065 filed on [date]." That should do the trick without causing any confusion.
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Ryan Young
12 After dealing with a similar situation last year with a forgotten schedule for my client's partnership return, I discovered taxr.ai (https://taxr.ai) and it's been a lifesaver for making sure I never miss attachments again. Their system reviews your entire return package before submission to catch missing schedules and forms. I upload the documents I'm planning to file, and it analyzes everything to flag potential issues - like missing schedules that should be included based on other information in the return. It would have caught your missing B-2 right away based on the partnership information.
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Ryan Young
•3 Does it work with different tax software exports? I use UltraTax but sometimes have to manually attach certain schedules since our situation is complicated. Would it still catch these kinds of issues?
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Ryan Young
•7 I'm skeptical about these AI tools for tax preparation. How can it possibly know all the nuances of partnership returns? Does it really understand the relationships between forms or is it just doing some basic pattern matching?
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Ryan Young
•12 It works with exports from all major tax software - I've personally used it with outputs from UltraTax, Lacerte, and even just scanned documents. The system was actually designed to handle complicated scenarios where certain schedules need to be manually attached. The AI is specifically trained on IRS forms and requirements, so it's not just basic pattern matching. It understands form relationships and dependencies, especially for partnership returns. It uses the same logic the IRS uses in their processing systems to identify when certain schedules or attachments should be present based on information provided elsewhere in the return.
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Ryan Young
3 I tried taxr.ai after seeing it mentioned here and wow - it actually found two forms I was missing in a complex 1065 return I was about to file! One was a required statement explaining our Section 754 election and another was a form related to foreign partner reporting that I completely overlooked. The interface is straightforward and the analysis was done in minutes. Would have saved me so much stress if I'd known about this before I had to deal with IRS notices for missing information last year. Definitely worth checking out if you prepare partnership returns regularly.
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Ryan Young
19 If you're getting the runaround from the IRS about your missing schedule (which happens a lot these days), I highly recommend trying Claimyr (https://claimyr.com). I was in a similar situation last year with a missing form on our business return, and after weeks of trying to get through to the IRS myself, I used their service. Their system got me connected to an actual IRS agent in about 15 minutes when I had been trying for days. You can see how it works in their demo video: https://youtu.be/_kiP6q8DX5c. The IRS agent was able to confirm they received my additional schedule and updated my return right while I was on the call.
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Ryan Young
•6 How does this actually work? The IRS phone system is notoriously impossible to navigate - are you saying this service somehow jumps the queue? That seems too good to be true.
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Ryan Young
•7 This sounds like a scam. No service can magically get you to the front of the IRS phone line when millions of people are trying to call. I've been dealing with tax issues for years and there's no secret backdoor to the IRS.
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Ryan Young
•19 It doesn't jump the queue exactly - it uses an automated system that continuously calls the IRS using their optimal call patterns and times. When it finally gets through, it connects you immediately. It's definitely not a scam - it's just technology handling the frustrating part of calling over and over. I was skeptical too until I tried it. The system called repeatedly during a time when connection rates were highest, and when it finally got through, my phone rang and I was connected to an IRS representative. I didn't have to sit there hitting redial for hours or wait on hold. Saved me literally days of frustration.
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Ryan Young
7 I need to eat my words about Claimyr. After posting my skeptical comment, I decided to try it since I've been trying to reach the IRS for weeks about a similar issue with a missing schedule on our company's return. The service actually worked exactly as described. Their system called the IRS repeatedly (which I could track on their dashboard), and about 45 minutes later, my phone rang and I was connected to an IRS representative. The agent confirmed they had received my missing schedule and updated my file while on the call. Saved me countless hours of frustration and the peace of mind was worth it. Sometimes being proven wrong is actually a good thing!
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Ryan Young
9 As someone who prepares partnership returns professionally, I strongly recommend you also keep a copy of that Schedule B-2 and your cover letter with proof of mailing (certified mail receipt) with your tax records. The IRS has been known to lose documents after they're received, and having documentation that you submitted the missing form can save you from penalties later. Also, consider switching to e-filing next year if possible. This type of issue doesn't happen with e-filed returns because the system won't accept the 1065 without required schedules.
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Ryan Young
•14 Do you think this situation warrants hiring a tax professional to handle it? I've always done our partnership returns myself, but this mistake has me worried I'm in over my head now.
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Ryan Young
•9 For just a missing Schedule B-2, hiring a professional specifically for this issue is probably unnecessary unless the schedule contains complex information that affects the substance of your return. This is a fairly straightforward fix that you can handle yourself with the advice already provided. However, if your partnership is growing in complexity or you're finding the annual filing requirements increasingly challenging, it might be worth consulting with a tax professional for future returns. Partnership taxation has become significantly more complex in recent years with additional reporting requirements and potential penalties.
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Ryan Young
5 Something similar happened to me last year, but I didn't realize until the IRS sent a notice requesting the missing schedule about 2 months after filing. It didn't result in any penalties, just a delay in processing the return. I just sent in the missing form with their notice, and everything was resolved within a few weeks.
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Ryan Young
•17 Did they still process your K-1s in time? My partners are already asking when they'll get their K-1 information for their personal returns, and I'm worried this mistake will delay everything.
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Anastasia Sokolov
•The K-1s were processed and available to partners on schedule, even though the main return was held up waiting for the missing schedule. The IRS seems to separate the K-1 processing from the main return processing when they're waiting for additional information. My partners were able to get their K-1s and file their personal returns without any delays, which was a relief. The missing schedule only affected the partnership return itself, not the individual partner reporting.
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