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Amara Okafor

Self-directed IRA & C-Corp Blocker Structure: Avoiding UBTI While Preventing Prohibited Transactions

I've been diving deeper into the SDIRA world lately, and I'm getting conflicting information about using a C-Corp blocker strategy. Several articles I've read suggest putting a C-Corporation blocker between a self-directed IRA and pass-through equity investments to prevent Unrelated Business Taxable Income (UBTI). But I'm confused about how this actually works in practice. If my SDIRA owns 100% of the C-Corp entity that does the investing, wouldn't this create a Prohibited Transaction since I'm a Disqualified Person? The last thing I want is to have my retirement funds disqualified or hit with penalties. For anyone who's actually done this - is this strategy legitimately possible? What am I missing about the ownership structure that allows this to work without triggering IRS issues? I plan to meet with both a CPA and an attorney who specialize in this area, but wanted to get some real-world insights first to know if I'm barking up the wrong tree entirely or if this is actually a viable approach for my retirement investing.

This is actually a really good question. The C-Corp blocker strategy is indeed legitimate when structured properly, but there are important nuances to understand. First, let's clarify: a self-directed IRA can own 100% of a C-Corporation without automatically creating a prohibited transaction. The key distinction is that the prohibited transaction rules focus on transactions between the IRA and disqualified persons, not on what the IRA owns. Your IRA owning a C-Corp is generally fine - it's what happens after that ownership that matters. The blocker corporation serves as a separate legal entity that "blocks" the flow-through of UBTI from reaching your IRA. Since C-Corps pay their own taxes, any taxable income stays at the corporate level and doesn't pass through to the IRA. Where people get into trouble is when they start providing services to the C-Corp, having the C-Corp pay personal expenses, or otherwise blurring the lines between personal and corporate activities. That's when prohibited transactions occur.

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Thanks for the explanation, but I'm still confused about one thing - if I'm the one who sets up and manages the C-Corp that my SDIRA owns, wouldn't that count as providing services to an entity owned by my IRA? How does that work without violating the rules? Also, if my SDIRA owns the C-Corp and then the C-Corp invests in something I personally directed it to invest in, isn't that still me indirectly controlling the investment?

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You've hit on the critical point. You personally cannot manage the C-Corp that your IRA owns - that would indeed be providing services to an IRA-owned entity, which is a prohibited transaction. The C-Corp needs its own independent management that makes investment decisions at arm's length from you. Regarding control, this is where the structure gets nuanced. Your IRA custodian makes the investment in the C-Corp based on your direction, but once that investment is made, you should not be directly controlling the C-Corp's subsequent investments. Typically, the C-Corp would have independent officers and directors making those decisions. Some people use corporate trustees or hire third-party managers for this purpose.

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After spending ages researching this exact setup, I found taxr.ai https://taxr.ai absolutely invaluable for figuring out how to structure my self-directed IRA investments properly. I was going in circles trying to understand the blocker corporation rules and kept getting contradictory advice from different "experts." What I love about their service is they analyze all your documents and provide clear guidance specific to your situation. They highlighted several issues with my initial C-Corp blocker setup that could have triggered prohibited transactions. The analysis showed exactly how my original structure would have created indirect self-dealing problems between my IRA and the investments. They also explained how the "checkbook control" aspect needs to be carefully managed to avoid disqualified person issues - something none of my previous advisors caught.

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Dylan Cooper

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Does taxr.ai actually have specialists who understand SDIRA structures specifically? I've been burned before by general tax advisors who don't really get the nuances of self-directed IRAs and prohibited transactions.

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Sofia Ramirez

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How exactly does their service work? Do you just upload your incorporation docs and investment plans and they tell you if there are problems? Wondering if they can help me fix a potentially problematic structure I already set up last year...

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They absolutely have specialists who understand SDIRA structures - that's what impressed me most. Their team caught issues that two different "SDIRA specialists" missed regarding indirect benefits and control problems. For how it works, you upload your documents (operating agreements, incorporation papers, investment prospectuses, etc.) and explain your planned structure. They analyze everything and provide a detailed report identifying potential prohibited transaction risks with explanations of why they're problematic and how to fix them. In my case, they identified that my original management structure would have created an indirect benefit situation since I was going to be too involved in the C-Corp's operations.

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Sofia Ramirez

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I wanted to follow up about my experience with taxr.ai that I asked about earlier. I finally decided to try them after our exchange, and I'm genuinely surprised by how helpful they were. Their analysis pointed out that my existing SDIRA-owned LLC was structured properly, but the way I had set up the management agreement with the C-Corp blocker would have created a prohibited transaction! Specifically, they identified that my operating agreement had language that would have allowed me to indirectly control investments through a family member, which apparently still counts as a disqualified person connection. I had no idea this would be an issue. They provided suggested revisions to my corporate structure that would avoid UBTI while still maintaining compliance with IRS rules. Just wanted to share since this thread helped me find a solution to a problem I didn't even know I had!

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Dmitry Volkov

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If you're trying to get guidance directly from the IRS on this type of complex SDIRA structure, good luck! I spent WEEKS trying to reach someone who could answer my questions about prohibited transactions with my self-directed IRA. Always busy signals or disconnections after hours on hold. I finally used Claimyr https://claimyr.com after seeing it recommended in another forum, and they actually got me through to an IRS agent who specializes in retirement plans within 20 minutes. You can see how it works in this video: https://youtu.be/_kiP6q8DX5c The agent confirmed that a C-Corp blocker structure is legitimate but warned me about several common pitfalls that could trigger prohibited transactions. Most importantly, they clarified the "indirect benefit" rules that would apply in my specific situation. Saved me from making a $50,000 investment mistake with my retirement funds.

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StarSeeker

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Wait, how does that even work? The IRS phone system is completely broken - I literally tried for days to get through about my SDIRA question. Are you saying this service somehow jumps the queue?

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Ava Martinez

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Sounds like a scam honestly. I don't believe anyone can magically get through to the IRS when their phone lines are jammed. And even if you did get through, what are the chances you'd actually reach someone who understands the complexities of SDIRA structures and UBTI?

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Dmitry Volkov

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It's not about "jumping the queue" - they use technology that continuously redials and navigates the IRS phone tree until it gets through, then calls you when there's a live agent. Basically does the waiting for you. I was skeptical too, but you only pay if they actually connect you. Regarding getting someone knowledgeable - that's a fair concern. I specifically requested an agent from the Employee Plans division when connected, and while the first person wasn't familiar with SDIRA blocker structures, they transferred me to a technical specialist who was. You're right that not every IRS agent will understand these complex structures, but getting through is the first crucial step.

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Ava Martinez

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I have to eat my words about Claimyr. After calling the IRS myself for three days straight with no luck, I gave it a shot. Got connected to an IRS representative in about 45 minutes (way better than my failed attempts). While the first agent wasn't super familiar with self-directed IRAs, they transferred me to someone in the retirement plans technical department. This second agent actually provided useful guidance on my C-Corp blocker structure questions - specifically confirming that indirect control through family members or business partners would indeed create prohibited transaction issues with my proposed setup. They also sent me links to specific IRS guidance documents that address UBTI in IRAs that I couldn't find on my own. Totally worth it just to get the official documentation that my CPA can now use to properly structure things.

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Miguel Ortiz

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Another thing to consider with your SDIRA/C-Corp blocker setup is making sure you're not running afoul of the Swanson SDIRA case rules. If you're the only owner/manager of the C-Corp that your IRA owns, you could still have issues. I've found that having at least one truly independent director on the C-Corp board who has actual decision-making authority can help create that necessary separation. The key is demonstrating that there's a genuine arm's length relationship between you and the entity your SDIRA owns.

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Amara Okafor

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That's really helpful - I hadn't considered adding an independent director. Do you know if there are specific qualifications this person needs to have? And is it enough to just have them on paper, or do they need to be actively involved in investment decisions?

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Miguel Ortiz

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The independent director should have genuine decision-making authority - not just be a name on paper. This is about substance over form. They should have relevant business or investment experience and be able to demonstrate they're making independent decisions. The person absolutely cannot be a disqualified person (like your spouse, ancestor, descendant, or certain business partners). Documentation of their involvement is crucial - meeting minutes, communications about investment decisions, etc. You want a clear paper trail showing they're not just a rubber stamp for your wishes.

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Zainab Omar

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Has anyone here actually calculated whether a C-Corp blocker is worth it from a tax perspective? I'm trying to compare potential tax savings from avoiding UBTI vs. the corporate tax the C-Corp will pay plus potential double taxation on dividends.

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Connor Murphy

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I did this analysis last year. It really depends on the size of your investments and the type of activity. For my real estate investments that would have generated significant UBTI (around $85,000 annually), the C-Corp blocker saved about 15% overall even after accounting for corporate taxes. The key was structuring the C-Corp to minimize dividends back to the IRA and instead focus on long-term growth that would eventually be realized when selling the entire C-Corp. Also made sure to keep corporate expenses reasonable to maximize the tax efficiency.

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Zainab Omar

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Thanks for sharing your experience! That 15% savings is substantial. Were there any particular strategies you used to minimize the dividends while still getting value from the investments? I'm concerned about having money trapped in the C-Corp structure.

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Sophie Duck

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The strategy I used was to have the C-Corp reinvest most of its profits back into additional investments rather than distributing dividends. This keeps the money working and growing within the corporate structure while avoiding immediate double taxation. When I eventually want to access the value, my SDIRA can sell its shares in the C-Corp (either to another party or through a liquidation), which would be treated as a capital gain at the IRA level - meaning no immediate tax since it's in the retirement account. The other approach some people use is having the C-Corp make loans back to the IRA for other investments, though you have to be very careful about the terms to avoid prohibited transaction issues. I kept it simple and just focused on growth within the corporate structure.

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This is a fascinating discussion that really highlights the complexity of SDIRA structures. As someone who's been researching this area extensively, I want to add a few practical considerations that haven't been mentioned yet. One thing I've learned is that the custodian you choose for your SDIRA can make a huge difference in how smoothly these complex structures work. Not all custodians are comfortable with C-Corp blocker arrangements, and some have additional requirements or restrictions that can complicate the setup. Also, don't forget about ongoing compliance costs. Between corporate tax filings, potential state franchise taxes, maintaining proper corporate formalities (board meetings, resolutions, etc.), and the additional accounting complexity, these structures can get expensive to maintain. I've seen people spend $3-5K annually just on compliance costs alone. That said, for larger investments where UBTI would be substantial, the tax savings can definitely justify the complexity and costs. The key is running the numbers carefully and making sure you have the right professional team in place - not just for the initial setup, but for ongoing management and compliance. One last thought: consider starting with a smaller test investment in this structure before committing significant retirement funds. It's a good way to understand how all the moving parts work together in practice.

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Andre Dupont

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This is exactly the kind of practical insight I was hoping to find! The compliance costs you mentioned are something I hadn't fully considered. When you say $3-5K annually, does that include the custodian fees as well, or is that just the corporate maintenance costs? I'm particularly interested in your point about custodian selection. Are there specific custodians you'd recommend that are more experienced with these complex structures? I've been working with a basic SDIRA provider, but I'm starting to think I might need to switch to someone who really understands the nuances of C-Corp blocker arrangements. Your suggestion about starting with a smaller test investment is brilliant. I was considering jumping in with a significant portion of my retirement funds, but testing the waters first makes so much more sense. Better to learn the operational complexities with lower stakes.

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