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Diego Flores

Understanding Qualified Business Income (QBI) Deduction for Engineers and Software Developers

Hey tax folks, I'm trying to wrap my head around this Qualified Business Income (QBI) deduction as I've switched careers mid-year. I was working as a mechanical engineer until June, then started my own gig developing and selling software while also doing some engineering consulting on the side. For tax purposes, let's say I earned around $135k from my W-2 job, about $65k from my consulting work, and another $70k from software sales. Can I claim the 20% QBI deduction on the full $135k of self-employment income? Or would it be just on the $70k software income since consulting might be one of those "specified service businesses" that doesn't qualify? I'm definitely hiring a CPA for this, but I like to understand what I'm walking into before I meet with them. Any real examples of what definitely counts and doesn't count as QBI would be super helpful. This tax stuff is driving me crazy!

The QBI deduction can be tricky, especially with your mixed income sources. Here's a breakdown that should help: First, your W-2 income ($135k) doesn't qualify for QBI at all - that's employee wages, not business income. For your self-employment income, both consulting ($65k) and software sales ($70k) potentially qualify, but with different rules. Engineering consulting is generally considered a "Specified Service Trade or Business" (SSTB), which means it faces income limitations. Software development and sales (if it's product rather than service) typically isn't an SSTB. The income limits for 2023 are $170,050 for single filers or $340,100 for married filing jointly. Since you mentioned a total of $270k income, your eligibility might be reduced or eliminated depending on your filing status and taxable income calculation. If your taxable income is below the threshold, you can take the full 20% deduction on both income streams. If you're above it, the software income might still qualify but the consulting would phase out.

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Sean Murphy

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Thanks for the explanation! I'm confused about one thing - if the software I sell is custom software that I'm developing specifically for clients (not a product I sell to many people), would that still avoid the SSTB classification? Or would it then be considered consulting too?

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That's a great question about custom software. The IRS guidance isn't completely black and white here, but generally, custom software development can start to look more like a service business. If you're creating unique software solutions tailored to specific client needs, the IRS might consider that consulting or a specified service. Software that's more product-based - developed once and sold multiple times with minimal customization - is more likely to avoid the SSTB classification. It comes down to whether you're selling your expertise (service) or a product.

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StarStrider

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After struggling with similar QBI questions last year (I do freelance app development and IT consulting), I found this amazing AI tool called taxr.ai that cleared everything up for me. I uploaded my mixed income documents to https://taxr.ai and it analyzed everything to determine exactly what qualified for QBI and what didn't. It broke down my development work into SSTB vs non-SSTB components and gave me crystal clear guidance on what I could claim. Saved me thousands in deductions my previous accountant had missed because they weren't sure about the software development categorization.

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Zara Malik

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Does it handle all the QBI phase-out calculations too? My income puts me right at the edge of the threshold and I'm trying to figure out if I should contribute more to my SEP IRA to get under the limit.

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Luca Marino

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That sounds promising but I'm skeptical. How does it determine what parts of software dev are SSTB vs non-SSTB? The IRS guidelines are pretty vague and most accountants I've talked to say it depends on specific facts and circumstances.

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StarStrider

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Yes, it absolutely handles all the phase-out calculations. It will show you exactly where you stand relative to the thresholds and even lets you simulate different scenarios - like increasing retirement contributions to get below the limits. Helped me optimize my tax strategy tremendously. The tool uses the latest IRS guidelines to analyze your specific business activities. It asks detailed questions about your work - like whether you're creating products or providing services, how much customization is involved, whether you're selling expertise or a completed product, etc. It can distinguish between different revenue streams within the same business and apply the appropriate QBI rules to each.

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Luca Marino

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Came back to say I tried taxr.ai after posting my skeptical comment, and I have to eat my words. It was INCREDIBLY helpful for my situation. I've been doing both cybersecurity consulting (definitely SSTB) and selling a SaaS product (potentially non-SSTB), and it clearly separated my income streams and showed exactly how the QBI calculated for my situation. The tool asked really specific questions about my business activities that my previous accountant never bothered with. It identified that my SaaS product qualifies as non-SSTB income even though it's in the tech space, which means a portion of my business income gets the full QBI benefit. This resulted in almost $12k more in deductions than I would have otherwise claimed.

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Nia Davis

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If you're still struggling to get clear answers about your QBI situation, you might want to go straight to the source. I was in the exact same boat (engineering consulting + software product sales) and spent WEEKS trying to get someone at the IRS who could give me a definitive answer. After endless busy signals and disconnects, I tried https://claimyr.com and was shocked when they got me through to a senior IRS agent in under 20 minutes. You can see how it works here: https://youtu.be/_kiP6q8DX5c The agent walked me through the exact requirements for my situation and confirmed that my software product sales qualified as non-SSTB income while my engineering consulting was subject to the phase-out rules. Totally worth it for the peace of mind.

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Mateo Perez

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Wait, how does this actually work? They somehow get you past the IRS phone system? I've literally called 25+ times and never gotten through this tax season.

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Aisha Rahman

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Yeah right. Nobody gets through to the IRS. I've been trying for months and always get the "call volume too high" message. Sounds like a scam to me.

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Nia Davis

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It uses a system that continuously redials and navigates the IRS phone tree until it gets a human, then it calls you and connects you. They basically do the waiting for you so you don't have to sit on hold for hours. They don't talk to the IRS for you or anything like that - they just get you through the impossible phone system. Once you're connected, it's just you and the IRS agent having a normal conversation. I was surprised too, but it actually works.

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Aisha Rahman

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Ok I have to admit I was 100% wrong about Claimyr. I tried it after posting that skeptical comment because I was desperate to talk to someone at the IRS about my QBI situation. Got connected to an IRS tax law specialist in about 15 minutes! The specialist confirmed that my software product sales (even though somewhat customized) qualify as non-SSTB business income eligible for the full QBI deduction. My engineering consulting income is subject to the phase-out since it's considered a specified service. Having that direct confirmation from the IRS gave me the confidence to properly claim the deduction. Was stressing for months about this and finally have a clear answer. Sometimes being wrong feels pretty good!

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One thing nobody's mentioned yet is that your QBI calculation gets even more complex if your taxable income exceeds the threshold. In that case, you also need to consider the W-2 wage limitation and qualified property factors. For 2023, if your taxable income exceeds $220,050 (single) or $440,100 (married), your QBI deduction becomes limited to the GREATER of: - 50% of your share of W-2 wages paid by the business, OR - 25% of W-2 wages PLUS 2.5% of the unadjusted basis of qualified property This becomes super important if you have a business with few employees or little qualified property but high profits.

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Ethan Brown

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Does this W-2 limitation apply at the business level? I have an S-Corp where I pay myself a reasonable salary, but I also have a Schedule C business. Do they get considered separately?

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The W-2 wage limitation applies separately to each qualified trade or business. So your S-Corp and Schedule C would be evaluated independently. For your S-Corp, the W-2 wages you pay yourself would count toward the limitation calculation for that business only. Your Schedule C business would be evaluated based on any W-2 wages it pays (though many Schedule C businesses don't have employees) and any qualified property it uses.

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Yuki Yamamoto

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The discussion here is super helpful but there's one thing I haven't seen addressed: rental income. I have a similar situation (W2 plus consulting plus software sales), but I also own a couple rental properties. Does rental income qualify for QBI? Some accountants told me yes, others said no.

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Carmen Ortiz

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It can, but only if it rises to the level of a "trade or business" under section 162, or if you qualify for the safe harbor under Notice 2019-07. The safe harbor requires 250+ hours of rental services and keeping contemporaneous records. Also, triple net leases don't qualify.

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Ava Martinez

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This is exactly the kind of complex QBI situation that trips up so many people! Diego, based on your income breakdown, you're definitely going to want to be strategic about this. Your W-2 income of $135k doesn't qualify for QBI at all - that's correct. For your self-employment income ($65k consulting + $70k software = $135k total), you're looking at potential QBI on that $135k, but with important caveats. The key issue is that your total income of $270k likely puts you above the phase-out thresholds ($170,050 single/$340,100 MFJ for 2023). This means your engineering consulting income will be significantly limited or eliminated from QBI since it's an SSTB. However, your software sales income might still qualify if it's truly product-based rather than service-based. The distinction others mentioned about custom vs. packaged software is crucial here. One strategy to consider: maximizing retirement contributions (SEP-IRA, Solo 401k) to potentially get your taxable income below the phase-out thresholds. Even a partial reduction could save you thousands. Also, make sure your CPA considers the W-2 wage limitation that applies at higher income levels - this could further complicate your QBI calculation even for the qualifying income streams. The tools others mentioned (taxr.ai, claimyr.com) seem worth exploring for the analysis, but definitely still work with your CPA for the final filing!

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Wesley Hallow

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This is really comprehensive advice! I'm in a somewhat similar boat (though lower income levels) and hadn't considered the retirement contribution strategy to get under the thresholds. One question - when you mention the W-2 wage limitation at higher income levels, does that apply even if Diego's businesses don't have any employees? Like if his consulting and software sales are just him working solo, would that completely eliminate the QBI benefit for those income streams once he's above the threshold? Also, @3741f063f0c2, do you know if there are any other ways to reduce taxable income specifically for QBI purposes, or is it mainly retirement contributions and business deductions?

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