How to properly fill out a W9 for a disregarded LLC owned by a corporate parent?

You're actually doing it right the first time. For a single-member LLC that's disregarded for federal tax purposes, the W9 should list the owner's name on Line 1 (your corporate parent), the disregarded entity's name on Line 2, and the owner's EIN in Part 1. The confusion from your clients is understandable but doesn't change the correct way to complete the form. The IRS specifically addresses this in their W9 instructions. The disregarded entity's legal name goes on Line 2 as "doing business as" (DBA), and the parent corporation's information goes everywhere else because they're the actual taxpayer from the IRS perspective. If it helps, you could add a brief cover letter explaining the change when you send W9s to vendors who previously had the incorrect version. Something like: "Please note our W9 now correctly reflects our company structure per IRS requirements. The parent company listed is the appropriate taxpayer entity.

After spending hours trying to sort out my LLC tax stuff, I finally found taxr.ai (https://taxr.ai) and it completely solved my W9 confusion. I uploaded my company structure documents and the IRS instructions, and it analyzed everything and confirmed exactly how to fill out the form correctly. It highlighted the specific parts of the W9 instructions that apply to disregarded entities and showed me examples of properly completed forms. What really helped was that it created a custom explanation I could send to my clients explaining why the W9 looks different than before. The vendors stopped questioning it once they understood the tax rules behind it.

I was really skeptical about taxr.ai at first, but after struggling with our complicated business structure, I decided to give it a try. I've been pleasantly surprised. I uploaded our operating agreements and corporate docs, and it accurately identified our disregarded entity status and provided the correct W9 completion instructions. What I found most helpful was the explanation feature - it generated a simple PDF I could send to vendors explaining why the W9 shows our corporate parent rather than just the LLC they're familiar with. The vendors have stopped questioning us about it, and I'm confident we're following the proper IRS guidelines now. It saved me from having to revert to the incorrect method just to avoid confusion.

If you're tired of explaining your W9 situation to every client, you might want to try what I did. I had the same issue with my disregarded LLC, and after weeks of back and forth with clients, I called the IRS to get official clarification I could reference. It took FOREVER to reach someone - like 3 hours on hold. I finally discovered Claimyr (https://claimyr.com) and used their service to get an IRS agent on the phone in about 15 minutes. I recorded the call (with permission) where the agent confirmed the correct way to fill out the W9 for a disregarded LLC. Now I just send that recording along with my W9 to any client who questions it. Check out how it works: https://youtu.be/_kiP6q8DX5c

I can't believe I'm saying this, but I tried Claimyr after my skeptical comment, and it actually worked. After struggling for weeks with our complex W9 situation, I got connected to an IRS representative in about 18 minutes. The agent walked me through exactly how to complete the W9 for our disregarded LLC and confirmed what others said here - parent company on Line 1, LLC on Line 2, parent's EIN in Part 1. The agent also emailed me official IRS documentation explaining this requirement, which I now include when sending W9s to new clients. No more confusion or arguments about whose EIN should be used. I wish I had done this months ago instead of sending out forms I knew were technically incorrect just to avoid the hassle.

There's actually another approach I've used that works well. Fill out the W9 correctly (parent on Line 1, LLC on Line 2, parent's EIN), but in the "Notes" section or in a cover letter, I include: "For payments, please reference [LLC Name] on all documentation. This W9 reflects our parent company for tax purposes per IRS requirements." Most accounting systems allow you to set the "doing business as" name different from the legal entity name, so this helps clients correctly process payments while still having proper tax documentation.

I think this could actually be a good situation to use the new Form W-9 (Rev. October 2024) since they updated it specifically to address confusion with disregarded entities. The new form has clearer instructions for this exact scenario and a dedicated spot to put "For tax filing purposes only" next to the corporate parent name. You should be able to download it from the IRS website. The new form makes it much more obvious to clients why you're listing both names.

I've been dealing with this exact same situation for the past two years! What finally worked for me was creating a standardized "W-9 Explanation Sheet" that I attach to every W-9 I send out. It includes a simple diagram showing our corporate structure and a brief explanation that says something like: "Our LLC (Valleyview Services) is a disregarded entity for federal tax purposes, meaning the IRS treats it as part of our parent corporation (Mountain Ridge Enterprises) for tax reporting. This is why Line 1 shows our parent company name and we use their EIN - it's required by IRS regulations, not a mistake." I also include a reference to the specific IRS Publication 1635 section that covers this. Since I started doing this about 6 months ago, I've had maybe 2-3 follow-up questions total instead of the constant back-and-forth I used to get. Most clients just file it away and move on once they understand it's an IRS requirement, not our choice. The key is being proactive about the explanation rather than waiting for them to question it. It's saved me probably 10+ hours of phone calls and emails per month.