Oil & Gas K1 with IDC deductions - Schedule SE calculation issue for working interest partnership
So I've got this somewhat complicated situation with my Oil & Gas investment that I need help with from anyone who really understands these things. I'm a partial owner in a general partnership with working interest in several O&G properties. On my K1, there's a note at the bottom that specifically states "QUALIFIED BUSINESS INCOME HAS NOT BEEN REDUCED BY INTANGIBLE DRILLING COSTS AND OIL AND GAS DEPLETION." Here's where things get confusing. My new CPA (switched this year) is subtracting the IDC and Depletion amounts from box 14a to calculate my net self-employment earnings for Schedule SE. This was apparently at the instruction of the partnership's 1065/K1 preparer. But when I went back and looked at my 2020 and 2021 returns, my former CPA used the full box 14a amount on Schedule SE without any reductions - even though those K1s had the exact same notation about QBI not being reduced. The IDC and Depletion amounts on those years were substantial - we're talking about differences of $46K and $85K in net SE income. When I approached my former CPA about possibly amending those returns, she flat-out refused to even look into it, insisting everything was done correctly. Meanwhile, my current CPA isn't being responsive about this issue either. So my questions are: - Which method is correct for Schedule SE - using the full box 14a amount or reducing it by IDC and Depletion? - Can/should I amend my 2020-2021 returns if the former approach was wrong? - How do I get my former CPA to at least review this issue considering I fired her last year for late filing and other mistakes?
19 comments


Zara Ahmed
This is actually a common issue with oil and gas partnerships, and I've seen plenty of confusion about it over the years. The correct approach is to subtract IDC (Intangible Drilling Costs) and Depletion from box 14a when calculating net earnings for Schedule SE purposes. The reason is that IDC and Depletion are considered capital expenses rather than ordinary business expenses for self-employment tax purposes, even though they affect your income tax calculation. The partnership's K1 preparer was giving the right instructions to your new CPA. For your specific questions: 1. Your new CPA is doing it correctly by reducing box 14a by the IDC and Depletion amounts. 2. Yes, you can absolutely amend your 2020 and 2021 returns. You generally have 3 years from the filing date to amend returns, so you're well within that window. 3. Getting your former CPA to help might be challenging since you fired them. However, you don't need their cooperation to file amended returns. Your current CPA should be able to handle this, or you could find a tax professional who specializes in oil and gas matters. It sounds like amending those returns could save you a significant amount in SE taxes that you shouldn't have paid.
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StarStrider
•Thanks for the insight. Quick question - what Form/Schedule should I look at to find these IDC and Depletion amounts on my K1? Are they in specific boxes, or just mentioned in the supplemental information? And do you know roughly how much this could save in SE tax if we're talking about $46K and $85K differences in income?
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Zara Ahmed
•The IDC and Depletion amounts are typically found in the Supplemental Information section of your K1 (usually on page 2). They don't have specific box numbers on the main K1 form. Look for line items specifically labeled as "Intangible Drilling Costs" and "Depletion" in that supplemental section. For the tax savings, self-employment tax is roughly 15.3% (12.4% Social Security up to the wage base plus 2.9% Medicare). So for a $46K reduction, you'd save about $7,040 in SE tax, and for an $85K reduction, the savings would be around $13,000. That's definitely worth pursuing through amended returns.
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Luca Esposito
After dealing with something similar last year, I found this amazing service called taxr.ai (https://taxr.ai) that really helped me sort through my oil and gas partnership K1 issues. I was getting different answers from two accountants about how to handle IDC and depletion for SE tax purposes and was completely stuck. The taxr.ai system analyzed my K1s and all the supplemental information and confirmed exactly what you're discovering - that IDC and depletion should be subtracted from Box 14a for Schedule SE purposes. They even provided me documentation explaining why this treatment is correct according to IRS regulations, which was super helpful when I had to explain it to my accountant. What I found most useful was that they could look at both years of my returns side by side and pinpoint exactly where the inconsistency occurred, which sounds a lot like your situation with the different CPAs' approaches.
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Nia Thompson
•How does taxr.ai actually work? Do you upload your tax documents and they review them, or is it more like software that walks you through the process? I've got a similar issue with some partnership K1s (not O&G but real estate) and wondering if it would help.
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Mateo Rodriguez
•Did they explain why some CPAs do it one way and others do it differently? Seems like if this is a clear rule, all accountants should know it. My CPA acts like everything they do is black and white according to tax law, but then I see stuff like this where professionals disagree.
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Luca Esposito
•It works by uploading your tax documents and they have AI plus tax experts review them. You can upload your K1s, prior year returns, and any other relevant documents, and they'll analyze everything together to identify issues or opportunities. Much more comprehensive than regular tax software. Many CPAs don't specialize in oil and gas, which has very specific rules. The confusion happens because Box 14a doesn't come with clear instructions about these adjustments - the partnership is supposed to provide that guidance separately. Good partnerships include detailed instructions, but not all do, so some CPAs just use the Box 14a amount directly without making the proper adjustments.
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Nia Thompson
Just wanted to follow up and say I tried taxr.ai after seeing it mentioned here. Total game changer for my complicated K1 situation! I uploaded my last three years of returns and all my K1s, and they found several inconsistencies in how my CPA had been handling the pass-through income on Schedule SE. They even provided a detailed explanation document that I was able to send to my current CPA, who then agreed we should amend my previous returns. Looking at approximately $11K in refunds coming my way for overpaid SE tax. The service paid for itself many times over. What I appreciated most was getting a clear explanation of the technical rules in plain English. Made me feel confident in pushing back when my CPA initially resisted the idea of amending the returns.
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Aisha Abdullah
If you're still having trouble getting your former CPA to respond properly, you might want to check out Claimyr (https://claimyr.com). I was in a similar situation last year when I discovered my CPA had been miscalculating my cryptocurrency gains for years, and she wouldn't return my calls or emails about amending returns. After weeks of frustration, I used Claimyr to get through to the IRS directly (there's a video showing how it works here: https://youtu.be/_kiP6q8DX5c). I was able to speak with an IRS agent who confirmed I could file the amendments myself with Form 1040-X and explained exactly what documentation I'd need to include about the cryptocurrency calculations. Being able to speak directly with the IRS saved me so much time and stress compared to trying to get straight answers from my unresponsive ex-CPA. They got me through to an agent in under 30 minutes when I had previously spent hours on hold and getting disconnected.
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Ethan Wilson
•Wait, how does this actually work? You're saying this service somehow gets you to the front of the IRS phone queue? That sounds too good to be true. I've literally spent entire days on hold with the IRS before.
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NeonNova
•I'm skeptical. The IRS is notorious for long wait times. Even if you get through to them, will they actually be able to help with something as specific as oil and gas K1 treatment? Most frontline IRS agents don't have specialized knowledge about niche tax situations.
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Aisha Abdullah
•Yes, they use a system that continuously redials and navigates the IRS phone tree until they get a live agent, then they connect you directly. It's completely legitimate - they just automate the most frustrating part of calling the IRS. When your turn comes up, you get a call back and are connected directly to the agent. You're right that not every IRS agent will know specific details about oil and gas issues. But what I found helpful was that they directed me to the right department that handles Schedule C and Schedule SE issues. The agent I spoke with actually had experience with similar amendment situations and walked me through the process step by step, including what forms and supporting documentation to include.
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NeonNova
I wanted to follow up about my skepticism regarding Claimyr. I was completely wrong and owe an apology. After our discussion, I decided to try it since I had my own unresolved issue with an amended return that had been pending for over 18 months. Within 27 minutes (yes, I timed it), I was speaking with an actual IRS representative who looked up my case and found that my amended return had been approved but was stuck in processing. She expedited it and I received my refund check two weeks later. For the OP's situation, I'd recommend using this service to speak directly with the IRS about your specific O&G partnership situation. Ask to speak with someone in the business tax department who has experience with partnership returns. They can confirm the correct treatment of IDC and depletion for SE tax purposes, which would give you confidence in filing those amendments.
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Yuki Tanaka
This might help - my dad has been in O&G partnerships for 20+ years, and I help with his bookkeeping. Box 14a shows your self-employment income BEFORE certain adjustments that don't count for SE tax. According to IRS Pub 535, both IDC and percentage depletion are considered "capital costs" that don't reduce SE income the same way regular business expenses do. But here's where it gets tricky - the K1 preparer has to TELL you to make this adjustment since it's not clear from the form itself. That's why you see that note at the bottom about QBI not being reduced. You def need to amend those previous years. Look at Line 1a on Schedule SE from your 2020/2021 returns - if it matches box 14a exactly, then your former CPA didn't make the proper reductions. The difference in SE tax is 15.3% of the difference in income, so pretty substantial savings.
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Sean O'Donnell
•Thanks for this explanation! I just double-checked, and yes, the amount on Line 1a of Schedule SE for those years exactly matches Box 14a from the K1. No adjustments were made. Is there any official IRS documentation besides Pub 535 that specifically addresses this issue with O&G partnerships? I'm thinking about gathering all the evidence I can before approaching a new CPA to handle the amendments, since both my prior and current ones seem to be avoiding this.
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Yuki Tanaka
•Yes, check out IRS Publication 541 (Partnerships) which has some specific guidance about this. Also, if your K1 came with any supplemental worksheets from the partnership, they often include detailed instructions on how to handle these items. Another official source is the Instructions for Schedule SE, which state that certain deductions aren't taken into account when figuring SE income. You could also look at Revenue Ruling 59-32, which is an older ruling but still applicable, that specifically addresses IDC treatment.
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Carmen Diaz
One more thing to consider - check if your Box 14A income was high enough in those years to exceed the Social Security wage base (it was $142,800 for 2021 and $137,700 for 2020). If your income after the proper IDC/depletion adjustments would still be above these thresholds, then you'd only save the Medicare portion of SE tax (2.9%) on the excess amount, not the full 15.3%. Just something to keep in mind when calculating potential savings. Also, if you do amend and get substantial refunds, remember you'll likely be entitled to interest from the IRS since you essentially gave them an interest-free loan of your money!
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Andre Laurent
•This is a really good point. A lot of people forget about the Social Security wage base limit when calculating potential SE tax savings. If OP had other W-2 income that already hit the SS max, the savings would be even less.
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StarSailor
I've been following this thread with great interest as I'm dealing with a similar situation with my oil & gas K1s from the past few years. What strikes me is how many different professionals seem to handle this differently - it really highlights the complexity of these partnership tax rules. For anyone else in this situation, I'd strongly recommend documenting everything before you start the amendment process. Make copies of all your K1s, the supplemental information pages, and your filed returns. Also, if you have any correspondence from the partnership about how to handle these items, keep that too. One thing I learned the hard way is that when you're dealing with partnerships that have IDC and depletion, you really need a CPA who specializes in energy tax issues. General practitioners often aren't familiar with these nuances, which is probably why you're getting inconsistent treatment between your old and new CPAs. The good news is that the IRS is generally pretty reasonable about amendments when there's a legitimate error, especially one involving technical partnership tax rules. Just make sure you have solid documentation supporting the correct treatment when you file the 1040-X forms. Good luck with getting this sorted out - those potential savings definitely make it worth pursuing!
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