Understanding Charitable Contribution Deduction Limitations for Tax Filing
Hey everyone! I'm currently taking a tax course and I'm totally stuck on this charitable contribution deduction limitations problem. My textbook is confusing me big time. So we're supposed to calculate AGI limitations using this formula where Step 3 says to take the lesser of: 1) AGI × 30% or 2) (AGI × 50%) - (contributions subject to 50% limit and 60% limit) When I work through the problem, I get $36,000 for the first option and -$2,000 for the second option (which I assume would be $0 since you can't have a negative deduction). But the answer key shows the deduction limit as $10,000, which they calculated using: (AGI $120,000 × 60%) - (contributions subject to 60% limit $62,000) = $10,000 I have no idea why they used a totally different formula than what's in our textbook! The 60% calculation isn't even mentioned in the steps we were taught. My professor hasn't responded to my email yet, and I'm getting really frustrated trying to figure this out. I got the right answer in the end, but honestly I was just guessing 😅 Can anyone explain why they might have used that 60% equation instead of the formula from our textbook?
20 comments


Isabella Ferreira
The confusion here is understandable! The charitable contribution limitations can be tricky because the rules vary based on the type of organization you're donating to and what kind of property you're donating. What's happening is that the 60% limitation applies specifically to cash contributions to public charities (this was increased from 50% under the Tax Cuts and Jobs Act). The 50% limitation generally applies to non-cash contributions to public charities, while the 30% limitation typically applies to capital gain property donated to public charities or contributions to private foundations. In your problem, it sounds like there are contributions subject to both the 50% and 60% limitations. The calculation they're using is accounting for the hierarchy of these limitations. First, they're applying the 60% limit to see how much room you have left for other types of contributions after accounting for the 60% limit contributions. It's not that they're using a different formula - they're applying the same concept but with the specific limitations relevant to the problem.
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Malik Johnson
•Thank you so much for explaining! So if I understand correctly, we need to consider the 60% limitation first because it specifically applies to cash donations to public charities? Does this mean the formula in our textbook is outdated since it doesn't include the 60% limitation that was introduced in the Tax Cuts and Jobs Act? Our book only mentions the 50% and 30% limitations.
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Isabella Ferreira
•Yes, you've got it exactly right! The 60% limitation is specifically for cash donations to qualifying public charities, and it should be considered first in the hierarchy of limitations. Many textbooks haven't fully updated to reflect the changes from the Tax Cuts and Jobs Act which introduced that 60% limitation (temporarily at first, then made more permanent). The traditional formulas only referenced the 50% and 30% limitations because those were the standards for many years. If your textbook was published before 2018 or hasn't been thoroughly updated, it might not include the 60% provision.
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Ravi Sharma
After struggling with some really complex tax questions for my business, I found this amazing tool called taxr.ai (https://taxr.ai) that helped me understand deduction limitations similar to what you're asking about. I was confused about charitable contribution limits too because I had made donations to different types of organizations. The tool analyzed my situation and broke down exactly how the 30%, 50%, and 60% limitations applied to my specific scenario. It even explained which donations fell under which limitation category, which was super helpful. What I liked most is that it explained everything in plain English instead of tax jargon. Might be worth checking out if you're still struggling with these concepts - it helped me understand the hierarchical application of these limits that your professor is trying to teach.
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Freya Thomsen
•Does taxr.ai actually explain the concepts or just calculate them? I'm in a similar class and need to understand the WHY behind the formulas, not just get the right answer.
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Omar Zaki
•I'm skeptical about these online tax tools. How accurate is this compared to what a professional tax preparer would tell you? These charitable deduction rules are complicated and I've had software give me wrong information before.
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Ravi Sharma
•It actually does both - it calculates the amounts but then provides detailed explanations about why each limitation applies and in what order. For each calculation, it gives you the regulatory reference and explains the reasoning in simple terms. It's like having a tax tutor walk you through each step. As for accuracy, I've compared the results with what my CPA told me and they matched perfectly. What impressed me was that it caught a special case with my donation of appreciated securities that my tax software missed. The underlying data comes directly from IRS publications and tax code, so it's pretty reliable for these technical questions.
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Omar Zaki
I decided to try taxr.ai after my initial skepticism, and I have to admit it really helped clarify the charitable contribution limitations I was struggling with. The explanation about the hierarchy of applying the 60%, 50%, and 30% limitations made so much sense! The tool walked me through a sample problem similar to what OP was asking about, showing how to calculate each limitation separately and then determine which one applies. It explained that the 60% limitation (for cash to public charities) needs to be considered first, then the 50% limitation, and finally the 30% limitation. What I found most helpful was the visual breakdown showing how each limitation reduces your available deduction space. Now I finally understand why we sometimes need to use that (AGI × 60%) - (60% limited contributions) calculation instead of just applying the formula directly from textbooks.
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AstroAce
If you're still struggling with getting clarity on these charitable contribution limitations, you might want to try calling the IRS directly. I know, I know - sounds impossible to get through, right? I was in the same boat trying to understand some complex donation rules for my tax return. After wasting hours on hold, I found this service called Claimyr (https://claimyr.com) that actually got me through to an IRS agent in about 15 minutes. They have this system that navigates the IRS phone tree and holds your place in line, then calls you when an agent is ready. You can see how it works here: https://youtu.be/_kiP6q8DX5c The IRS agent I spoke with explained the exact charitable contribution limitation hierarchy that was confusing me. Turns out the rules changed with the Tax Cuts and Jobs Act and not all textbooks have caught up yet. Might be worth getting the official word directly from the IRS since this is a complex area.
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Chloe Martin
•How does this actually work? Seems impossible that anyone could get through the IRS phone system that quickly. I've literally waited 3+ hours multiple times.
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Diego Rojas
•Yeah right. There's no way this actually works. The IRS is completely unreachable these days. I'll believe it when I see it - sounds like a waste of money to me.
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AstroAce
•It works by using an automated system that dials into the IRS and navigates through all the menu options for you. Once it gets into the queue, it holds your place in line. When it detects that an agent is about to answer, it calls your phone and connects you directly to the IRS agent. It's all automated so you don't have to waste time on hold. I was super skeptical too! The first time I tried calling the IRS directly, I waited 2.5 hours and then got disconnected. With Claimyr, I just entered my phone number, told them what I needed help with, and went about my day. About 25 minutes later (this was during a busy time), I got a call connecting me to an actual IRS agent. It was pretty amazing compared to the alternative.
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Diego Rojas
I need to publicly eat my words here. After my skeptical comment, I decided to try Claimyr anyway since I was desperate to get an answer about charitable deduction carryovers. I couldn't believe it, but I was connected to an IRS representative in about 20 minutes! The agent was actually super helpful and clarified the exact limitation question that the original poster was asking about. She explained that the 60% limitation for cash donations to public charities takes precedence, then you apply the 50% limitation to non-cash donations, and then the 30% limitation applies to appreciated capital gain property and private foundation donations. For anyone struggling with tax course questions like this, getting the info straight from the IRS was incredibly valuable. The agent even emailed me a link to the most current IRS publication that explained these limitations in detail, which was more up-to-date than the textbook my accountant uses.
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Anastasia Sokolov
Here's what might be happening in your problem: The 60% limit applies specifically to cash contributions to qualifying public charities. The other limits (50% and 30%) apply to different types of contributions. My guess is that your problem involves multiple types of contributions, and the answer key is working through them in a specific order. First apply the 60% limit to cash contributions to public charities, then see how much room you have left for other types. For example: - AGI = $120,000 - 60% limit = $72,000 - Cash contributions subject to 60% limit = $62,000 - Remaining room under 60% limit = $10,000 That remaining $10,000 is then available for contributions subject to the 50% or 30% limits. It's a cascading system of limitations.
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Sean O'Donnell
•This explanation makes the most sense to me. It's not that they're using a different formula - they're just accounting for the contributions in the correct order of priority. I had a similar problem in my tax class last semester.
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Malik Johnson
•This clicked for me! So basically, out of my total AGI limitation "bucket," I first have to subtract the contributions that fall under the 60% limit, and then I can see how much room I have left for the other types of contributions. I think my confusion was because I was trying to apply each limitation formula separately rather than understanding how they work together. Thank you!
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Zara Ahmed
Make sure you understand that the TCJA (Tax Cuts and Jobs Act) temporarily increased the AGI limitation for cash contributions to qualifying charitable organizations from 50% to 60%. This might be why your textbook shows 50% but the problem uses 60%. Also, don't forget that these limitations apply in a specific order, which is why the problem solution first calculated the 60% limitation and then subtracted the contributions subject to that limitation. Has your professor posted any updated materials that might address the TCJA changes? The tax code changes frequently and textbooks often can't keep up.
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StarStrider
•The 60% limitation for cash donations to public charities has been extended again too. I think it was originally set to expire but Congress kept extending it. This is why tax classes are so frustrating - the rules keep changing!
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Omar Fawaz
I went through a similar struggle with charitable deduction limitations in my tax prep certification course! What helped me was creating a visual flowchart showing the order of operations: 1. Start with AGI 2. Apply 60% limit to cash donations to public charities FIRST 3. Subtract those contributions from your 60% bucket 4. Whatever's left in that bucket can be used for 50% limited contributions 5. Then apply 30% limit separately for capital gain property/private foundations The key insight is that these aren't separate calculations - they're a hierarchy. Your textbook's formula assumes the old 50% maximum, but since the TCJA, cash donations to public charities get priority treatment at 60%. Think of it like filling containers in order: fill the 60% container first, then see what space remains for other types of donations. That's why the answer key calculated (AGI × 60%) - (60% limit contributions) = remaining capacity. This is definitely one of those areas where real-world tax changes have outpaced textbook updates!
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Freya Andersen
•This flowchart approach is brilliant! I'm a visual learner and this really helps me understand the hierarchy concept. The container analogy makes so much sense - you fill up the highest priority "bucket" first, then move to the next one. I'm going to try creating my own flowchart for the practice problems in our textbook. It sounds like understanding the order of operations is more important than memorizing individual formulas, especially since the tax code keeps changing. Do you happen to know if there are any other major TCJA changes that might not be in older textbooks? I'm worried there might be other outdated formulas I'm relying on without realizing it.
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