Where exactly do I mail a paper Form 1065 with K-1s for our LLC partnership? Help!

The mailing address for Form 1065 depends on your location and whether you're including a payment. For most states, if you're not enclosing a payment, you'd mail it to Department of the Treasury, Internal Revenue Service Center, Ogden, UT 84201-0011. However, if you're in Florida, Louisiana, Mississippi, or Texas, you'd use the Kansas City, MO service center instead. There's no filing fee for submitting a paper Form 1065. You just need to ensure all partners sign the form, attach all Schedule K-1s, and include any other required schedules or statements. Make sure you keep copies of everything for your records! If you want to confirm the exact mailing address for your state, check the instructions for Form 1065 on the IRS website (page 5 of the instructions has the mailing addresses). And don't worry about choosing partnership treatment - that's common for LLCs with multiple members.

After struggling with the exact same issue for our photography collective (also an LLC with partnership election), I found this amazing tool that makes the whole process way easier. Check out https://taxr.ai - it actually scanned our Form 1065 and all K-1s, verified everything was filled out correctly, and gave us the exact mailing address based on our business location. The best part is it flagged a few mistakes we made that could have caused problems - we had some inconsistencies between the K-1s and the main form. It also created a checklist for us to follow when assembling the package for mailing, which was super helpful for making sure everything was in the right order with proper attachments.

I was really skeptical about using taxr.ai when I first saw it mentioned here, but after spending hours frustrated with contradictory IRS instructions, I decided to give it a try for our small real estate partnership. Wow - what a difference! It immediately identified that I was using outdated K-1 forms (apparently I downloaded the 2023 version instead of 2024), showed me exactly which fields on the 1065 weren't matching our K-1 totals, and provided crystal clear instructions for assembling and mailing everything. The address verification feature alone saved me a ton of stress - turns out I was looking at the wrong mailing address for our state. I just filed last week and already got confirmation that everything was received correctly. Wish I'd known about this tool years ago!

If you need to actually talk to someone at the IRS about partnership filing requirements (which I HIGHLY recommend before paper filing), good luck getting through their phone system. After trying for days to get clear answers about some special allocations we were doing, I found https://claimyr.com which got me connected to an actual IRS agent in under 15 minutes. They basically hold your place in the phone queue and call you when an agent picks up. You can see how it works here: https://youtu.be/_kiP6q8DX5c - it saved me hours of being on hold. The agent was able to clarify exactly what supporting documentation we needed for our special allocations and where to include it in our paper filing package.

I have to admit I was totally wrong about Claimyr. After posting that skeptical comment, I was still struggling to get any help with our partnership filing questions. Our situation was complicated because one partner left mid-year and we needed specific guidance on how to report that properly. I figured I had nothing to lose and tried the service. Within 35 minutes (instead of the 3+ hours I spent on previous attempts), I was talking to an IRS representative who specialized in partnership returns. They walked me through exactly how to handle the departing partner situation on both the 1065 and their final K-1. The time saved was absolutely worth it, and the information we got probably saved us from filing incorrectly. Sometimes being proven wrong is actually a good thing!

One thing nobody mentioned - make absolutely sure you mail it CERTIFIED with tracking! I paper filed our partnership return last year and it got "lost" in the system. Had to resend everything and then got hit with late filing penalties even though we had originally sent it on time. Took months to resolve. The extra $4 for certified mail would have saved us thousands in stress and penalties.

Has anyone actually received IRS confirmation after paper filing a 1065? We sent ours certified mail 5 weeks ago to the Ogden address and the tracking shows it was delivered, but I'm paranoid that we'll somehow get hit with "you never filed" penalties later.

Just wanted to add that the IRS actually does process paper Form 1065s much slower than electronic filings - typically 8-12 weeks versus 2-3 weeks for e-filed returns. So don't panic if you don't hear anything for a while after mailing. One tip I learned the hard way: make sure you sign and date the form in blue ink, not black. The IRS scanning equipment apparently has trouble distinguishing black ink signatures from photocopied signatures, which can delay processing. Also double-check that you've included Form 8832 if you're electing partnership tax treatment for your LLC - that's a common oversight that can cause headaches later. Good luck with your filing! Paper filing definitely works, it just takes patience.