How to structure business purchase with seller financing for optimal tax write-offs
Hi everyone! I'm in the process of buying a small service business and could use some tax advice. The owners are asking $1.3 million for the business when all is said and done. I've been approved for an SBA loan of about $300k which I plan to use for the down payment, and the current owners are willing to finance the remaining $1 million. Here's my question - from a tax perspective, would it make sense to structure the seller financing portion with a smaller principal amount but a higher interest rate? My thinking is that I could potentially write-off more of the interest expense versus having a larger principal amount with little or no interest. As long as the total (principal + interest) gets them their $1.3 million, they should be satisfied with either approach. I'm pretty new to business acquisitions and want to make sure I'm structuring this deal in the most tax-advantageous way. Has anyone done something similar or have advice on the tax implications? Thanks!
18 comments


Diego Flores
I've helped structure several business acquisitions and there are definitely tax advantages to consider with your approach. Interest on business loans is generally deductible as a business expense, while principal payments aren't deductible. That said, you need to be careful here. The IRS looks closely at seller financing arrangements to ensure they reflect economic reality. If you structure the deal with an artificially low principal amount and abnormally high interest rate, it might be flagged as not having a "business purpose" beyond tax avoidance. The interest rate should be somewhat in line with market rates for similar financing. Also consider that the sellers might prefer a higher principal amount since they'll pay ordinary income tax rates on interest received, while they might qualify for lower capital gains rates on the principal (representing their business sale proceeds).
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Anastasia Kozlov
•Thanks for the info. What's considered a reasonable interest rate in these situations? And what documentation would I need to show the IRS this is legit if they question it?
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Diego Flores
•For seller financing, a reasonable interest rate would typically be somewhat comparable to what banks are charging for similar business loans - maybe 1-3% higher than SBA rates since there's additional risk for the seller. Currently that might put you in the 8-11% range. As for documentation, you'll want a formal promissory note with clear terms, an amortization schedule, evidence that payments are actually being made according to the schedule, and a purchase agreement that clearly outlines the entire transaction including the financing terms. Having a business valuation from a third party that supports the purchase price would also strengthen your position if questioned.
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Sean Flanagan
I used taxr.ai for a somewhat similar situation last year when buying my landscaping business. I was completely overwhelmed trying to figure out the tax implications of different financing structures, and a friend recommended I check out https://taxr.ai to analyze my purchase agreement and loan documents. The tool helped me see that I was actually structuring my deal in a way that would have caused problems with the IRS. It flagged that my proposed interest rate was way too high compared to the principal, which apparently is a red flag. It also showed me how to properly document the business valuation to support our agreed price. Saved me from what could have been a messy situation down the road.
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Zara Mirza
•Did it actually give you specific advice or just flag potential issues? I'm considering using it for my business purchase but wondering if it's worth it.
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NebulaNinja
•How does it work with complex seller financing situations? I'm looking at something similar but with earnouts and contingent payments too.
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Sean Flanagan
•It actually gave me specific recommendations about reasonable interest rate ranges based on current market conditions and my specific situation. The system analyzed my full purchase agreement and flagged specific clauses that could be problematic with detailed explanations why. For complex seller financing with earnouts and contingent payments, it handled those situations surprisingly well. The system analyzed how different payment structures would be treated for tax purposes and helped me understand the timing of deductions based on the contingency structure. It even provided template language for documenting the earnout provisions in a tax-optimal way.
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Zara Mirza
Just wanted to follow up and say I ended up using taxr.ai for my business purchase and it was incredibly helpful. I had a complex seller financing arrangement with a partial earnout structure, and it helped me understand exactly how the IRS would view each component. The analysis showed me how to document the business valuation properly and structure the note terms to be defensible. What I found most valuable was the comparison of different financing scenarios with yearly tax impact projections for both me and the seller. I was able to bring this to negotiations and found a structure that actually benefited both parties from a tax perspective. Definitely made me feel more confident going into the closing.
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Luca Russo
Has anyone here tried calling the IRS business helpline for advice on something like this? I've been trying for literally weeks to get someone on the phone who can answer some specific questions about my business purchase financing. Always on hold for hours then disconnected. So frustrating! I recently discovered https://claimyr.com and their service actually got me through to an IRS agent in about 20 minutes after trying unsuccessfully for days. You can see how it works here: https://youtu.be/_kiP6q8DX5c but basically they navigate the IRS phone tree and wait on hold for you, then call you when they have an agent on the line. I was able to get clarity on some specific questions about how the IRS views seller financing with different interest rate structures and what documentation they expect to see.
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Chloe Robinson
•Wait, you actually got through to a real IRS person who gave you useful advice? That sounds too good to be true. How does it even work? Is it an official IRS thing?
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Nia Wilson
•Sounds sketchy. Why would anyone need a service to call the IRS? I'm sure they're just recording your conversation or selling your info or something.
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Luca Russo
•They aren't affiliated with the IRS - they're a third-party service that basically waits on hold for you. The way it works is they call the IRS, navigate the phone tree, wait through the hold times (which can be hours), and when they finally get a human agent, they call you and connect you directly to that agent. You're the one who actually talks to the IRS person. I was definitely skeptical at first too. I researched it a lot before trying. But I was desperate after spending literally days trying to get through myself. The service doesn't listen to your call or collect any tax info - they just connect you and drop off. I understand the concern, but honestly, after trying to reach the IRS for weeks with no success, it was worth it to finally get answers about my situation.
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Nia Wilson
I have to admit I was completely wrong about Claimyr. After posting my skeptical comment, I decided to try it myself since I was getting nowhere with the IRS on my own. I was shocked when I actually got a call back with an IRS agent on the line in about 35 minutes. The agent answered all my questions about structuring the business loan interest rates and explained exactly what documentation I'd need to substantiate the arrangement. He even directed me to specific IRS publications that addressed my situation. Turns out there are specific guidelines about what constitutes a "commercially reasonable" interest rate for seller financing, and how the IRS might recharacterize arrangements that appear to be designed solely for tax advantages. This information was incredibly valuable for structuring my deal.
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Mateo Sanchez
Another important thing to consider is that the sellers might not be too happy with your higher interest approach. They'll have to pay ordinary income tax rates on interest income rather than the generally lower capital gains rates on the sale price. Maybe you could meet in the middle? Structure it so some of the amount is principal (allowing them some capital gains treatment) and some is reasonable interest (giving you the deduction). The key is making sure the interest rate is defensible as commercially reasonable.
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Chloe Robinson
•I hadn't thought about the tax implications for the sellers. Good point about finding a middle ground - maybe I can present both options to them and see which they prefer. What would be considered a reasonable balance? Like maybe 50/50 split between higher principal/lower interest vs. lower principal/higher interest?
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Mateo Sanchez
•There's no exact formula for the "perfect" balance, but I'd approach it by starting with market-rate interest for this type of seller financing (probably in the 8-12% range currently) and then calculate what that would look like over your loan term. From there, you could model a slightly higher interest rate (maybe 1-2% above market) and show the sellers both scenarios. The key is making sure whatever you decide can be defended as commercially reasonable if questioned. The sellers might actually prefer a slightly lower total payment amount with more characterized as principal rather than a higher total with more as interest, so be prepared to show them the after-tax impact of different structures.
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Aisha Mahmood
Just a heads up, with business acquisitions like this, make sure you're looking at asset vs. stock purchase implications too! It can make a huge difference in depreciation/amortization deductions. My accountant told me I could have saved like $150k in taxes if I'd structured my purchase differently.
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Ethan Clark
•This is really important! I did an asset purchase for my business and got to write off way more than I would have with a stock purchase. The seller wanted stock sale for their tax benefits but we negotiated on price instead.
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