No receipts for items I'm selling online - will I get in trouble with 1099-K reporting if audited without expense deductions?
I've been selling a mix of stuff online for some extra cash and now I'm realizing I'm going to get hit with a 1099-K for this past year. Problem is, I didn't keep receipts for most of the inventory I bought to resell. Some of it I paid cash for at flea markets and yard sales, and other stuff I bought years ago before I had any clue about needing to keep records. I've also been clearing out my personal collection - things I've owned forever and just wanted to get rid of. No idea what I originally paid for most of that stuff either. I'm thinking about just reporting all the income from the 1099-K without claiming any deductions for what I spent on inventory, just to be safe. But I'm worried - if I get audited, will the IRS think something's suspicious because I'm not deducting any expenses? Would it be better to estimate what I paid for items and deduct that, or just pay taxes on the full amount? I don't want to do anything wrong, but I also don't want to pay way more in taxes than I should. The whole 1099-K situation is really stressing me out.
23 comments


Chad Winthrope
The good news is you're being proactive about this! When selling items online with a 1099-K situation, you have a few options even without perfect record-keeping. For personal items sold at a loss or near original cost, these aren't usually considered taxable income - they're personal sales, not business income. The IRS generally understands you're not in business when occasionally selling personal possessions. For reselling activities (which is a business), you should definitely report the income, but you can still estimate your costs of goods sold with reasonable approximations. The IRS doesn't expect perfection, just good faith efforts. You might create a spreadsheet documenting your best recollection of what you paid for inventory with notes about where/when purchased. While not as strong as receipts, it shows you're making an honest attempt. Going forward, keep detailed records - take photos of items with cost noted, save digital receipts, or keep a purchase journal. This will make future tax seasons much easier.
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Paige Cantoni
•What if most of the stuff I sold was actually my old collection but I can't remember what I originally paid? It was probably way less than what I sold it for since I've had some of it for 10+ years. Would it be better to just pay tax on everything to avoid problems?
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Chad Winthrope
•For your old collection items, if you sold them for more than you paid (even from many years ago), technically that's a capital gain. However, for personal items, you can often establish a reasonable estimated original value based on what similar items cost when you acquired them. Online price guides or even old catalogs can help establish these historical values. If you truly can't establish any reasonable basis for original cost, some people do choose to report the full amount as income to be ultra-conservative. But that's usually paying more tax than legally required. A reasonable estimate with documentation of how you arrived at that estimate is generally acceptable to the IRS, as long as your method is consistent and logical.
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Kylo Ren
After dealing with a similar 1099-K nightmare last year from my side hustle selling vintage items, I discovered taxr.ai (https://taxr.ai) and it literally saved me thousands. I also had minimal receipts for inventory I bought at estate sales and flea markets, but their AI analyzed my sales patterns and helped me create defensible documentation for my legitimate business expenses. The system helped me identify which of my sales were actually personal items (not taxable if sold at a loss) versus which were truly part of my reselling business. It also helped me create a reasonable estimation method for my cost of goods that would stand up to scrutiny if audited. Their documentation templates made a huge difference when I was trying to reconstruct what I had spent.
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Nina Fitzgerald
•How exactly does it figure out your expenses without receipts? Sounds kinda too good to be true. Wouldn't the IRS reject estimated costs?
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Jason Brewer
•Does it work for marketplace sales too? I sell on multiple platforms and I'm confused about how the new 1099-K thresholds work across different sites.
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Kylo Ren
•The system doesn't magically create receipts out of thin air - it helps you document and justify reasonable estimates based on market research, industry standards, and your specific situation. The IRS actually does allow reasonable estimates when exact records aren't available - the key is having a consistent, logical methodology that you can explain. For marketplace sales across multiple platforms, absolutely it works. It helps you consolidate reporting from different sources and ensures you're not double-counting income or missing deductions. It's especially helpful with the new lower 1099-K thresholds since it helps you properly categorize personal vs. business transactions across all your selling platforms.
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Jason Brewer
Just wanted to update everyone - I tried taxr.ai after seeing it mentioned here and it was seriously helpful! I was totally panicking about my online sales and not having proper documentation. The system helped me separate my occasional personal item sales from my actual reselling activity, and gave me a legitimate way to document my estimated costs. What really impressed me was how it helped me create a method for estimating costs that made logical sense based on typical markups in my niche. I'm not claiming to know every exact dollar I spent, but now I have a reasonable approach that I can explain if questioned. It also helped me identify which personal items I actually sold at a loss (which aren't taxable income). I feel WAY more confident about filing now!
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Kiara Fisherman
If you're getting audited or worried about proper documentation for your 1099-K situation, you might want to talk directly with an IRS agent about it BEFORE filing. I tried for weeks to get through to someone at the IRS about my similar situation last year and kept getting nowhere. Then I found this service called Claimyr (https://claimyr.com) that got me connected to an actual IRS agent in about 15 minutes when I'd been trying for days on my own. They have this demo video showing how it works: https://youtu.be/_kiP6q8DX5c - it's basically a system that navigates the IRS phone tree and waits on hold for you, then calls you when an agent picks up. The agent I spoke with actually gave me really specific guidance about how to handle my online sales without complete documentation. Turns out there are official procedures for situations exactly like this that I never would have known about otherwise.
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Liam Cortez
•How does this even work? The IRS phone system is completely broken, I literally spent 3 hours on hold last month and got disconnected. Can a service really get through faster?
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Nina Fitzgerald
•Sounds like BS to me. There's no way to "skip the line" with the IRS. They're just taking your money for something you could do yourself if you're patient enough.
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Kiara Fisherman
•The service doesn't skip any lines or do anything magical - it just automates the frustrating part. It uses technology to wait on hold for you and navigate the complicated IRS phone tree so you don't have to waste hours with a phone stuck to your ear. When a real human IRS agent finally answers, that's when they call and connect you. I had the exact same skepticism you do. I tried for over a week to reach someone at the IRS on my own with no luck. With Claimyr, I was speaking to an actual IRS representative within about 20 minutes of signing up. You still get the same place in line everyone else gets - the difference is you're not actively waiting on hold, your life isn't on pause while waiting.
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Nina Fitzgerald
Well I'm eating my words about Claimyr. After being super skeptical, I decided to try it as a last resort because I was desperate to talk to someone about my 1099-K situation before filing. Not only did it actually work, but the IRS agent I spoke with gave me specific instructions about how to handle my online sales without complete documentation. There's apparently an official form (Form 8275) where you can disclose items that might raise questions, and the agent walked me through exactly how to fill it out for my situation. They also confirmed what others have said here - that reasonable estimates are allowed when exact records aren't available, as long as you document your method and apply it consistently. The peace of mind from getting official guidance directly from the IRS was totally worth it. Much better than guessing or stressing about what might happen.
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Savannah Vin
I went through this exact 1099-K nightmare last year with my online vintage clothing sales. What helped me was creating a "reasonable estimate" document where I detailed my methodology. I took photos of similar items with current market prices, then applied a standard discount to estimate my purchase prices. I also documented my shopping patterns - which flea markets and thrift stores I visited regularly and typical prices there. When you don't have receipts, consistency and methodology become your best defense. I also kept a spreadsheet tracking each sale, including if it was personal property or business inventory. That separation is super important.
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Mason Stone
•Curious - did you end up calculating profit margin percentages for different categories? I'm trying to figure out a system for my own sales and wondering if doing something like "typically paid 25% of selling price for vintage electronics" would be acceptable.
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Savannah Vin
•Yes, that's exactly what I did! I broke my inventory into categories (vintage denim, band t-shirts, designer items, etc.) and assigned typical profit margins to each category based on my experience and some research. For example, I documented that I typically found vintage band shirts for $5-10 at thrift stores and sold them for $30-45 depending on rarity. This gave me a consistent method for calculating costs when exact purchase prices weren't documented. I made sure to be conservative in my estimates and included notes about my sourcing methods. If you're selling vintage electronics, your approach of using category-based percentages sounds very reasonable - just make sure you can explain how you arrived at those percentages if asked.
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Makayla Shoemaker
Has anyone actually been audited for online sales with a 1099-K? I'm hearing all kinds of horror stories but wondering if the IRS is really going after small sellers or if it's mostly fear.
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Christian Bierman
•My brother got audited last year for his eBay sales. He was doing about $30k in sales. The IRS mainly wanted to see that he was tracking business vs personal items correctly. He didn't have perfect records but had taken photos of most inventory with price tags before listing, which helped a lot. They were actually pretty reasonable about his estimated costs for older items.
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Amina Bah
I'm in a similar boat with my online sales and found this thread really helpful! One thing I'd add is that you should definitely keep track of your selling expenses too - PayPal/platform fees, shipping costs, packaging materials, etc. These are legitimate business deductions even if you don't have perfect inventory records. For your personal collection items, remember that if you're selling things for less than you originally paid (even if you can't prove the exact amount), that's typically not taxable income - it's a personal loss. The IRS generally understands that people aren't running a business when they're just decluttering their homes. I started keeping a simple spreadsheet this year with columns for: item description, where I bought it, approximate purchase price, selling price, and whether it's personal vs business inventory. Even rough estimates with notes about your reasoning are way better than nothing. The key is being consistent and honest about your methodology.
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Layla Mendes
•This is really solid advice! I never thought about tracking the selling expenses separately - that's definitely something I can document going forward even if my inventory records are messy. One question though - for the personal vs business distinction, how do you decide? I started selling some of my old stuff just to declutter, but then I got into it and started buying things specifically to resell. There's definitely some gray area in the middle where I'm not sure which category things fall into. Would love to hear how others handle that transition period.
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Xan Dae
•That's such a common situation! The transition from personal decluttering to actual reselling business is tricky to define, but there are some factors the IRS looks at. Generally, if you're buying items specifically with the intent to resell for profit, that's business activity. If you're selling personal belongings you already owned, that's typically personal. For that gray area in the middle, I'd suggest looking at your intent when you acquired each item. Did you buy it for personal use and later decide to sell it? That's more likely personal. Did you buy it thinking "this would be great to flip"? That's business inventory. Timing can also matter - if you bought something and sold it relatively quickly (within a few months), that suggests business intent. If you owned it for years before deciding to sell, that's more like decluttering. When in doubt, I err on the side of treating it as business income since that's the more conservative approach tax-wise. You can always deduct legitimate business expenses against business income, but you can't deduct losses on personal property sales.
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Chloe Robinson
I was in almost the exact same situation last year! The stress is real, but you're already ahead of the game by thinking about this now instead of at tax time. Here's what I learned: the IRS isn't expecting perfection, especially for casual sellers transitioning into more regular online selling. What they want to see is good faith effort and reasonable documentation. For your personal collection items that you've owned for years - if you're selling them for what you think is less than or close to what you originally paid, those often aren't even taxable as income. They're considered personal property sold at a loss or break-even. For the reselling inventory where you don't have receipts, create a simple method and stick to it. I made a spreadsheet documenting my best recollection of costs, noting things like "purchased at XYZ flea market, typical pricing $X-Y for similar items" or "bought from estate sale, estimated cost based on similar items I purchased there." The key is consistency and being able to explain your reasoning. I also started taking photos of price tags or keeping quick voice memos on my phone when buying inventory - makes record keeping so much easier going forward. Don't let the fear paralyze you into overpaying taxes. With some reasonable documentation of your methodology, you should be fine. The IRS understands that many people got caught off guard by the new 1099-K thresholds.
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Ethan Anderson
•This is really reassuring to hear from someone who went through the same thing! I'm definitely feeling that stress you mentioned. Your approach with the spreadsheet and documenting your reasoning sounds really smart - I think I'm going to do something similar. One thing I'm still worried about though - what if the IRS questions my estimates and thinks they're too low? Like, I know I probably paid way less for some collectibles years ago than what I sold them for recently, but I'm nervous about underestimating and getting in trouble. Did you err on the conservative side when estimating your original costs, or try to be as accurate as possible even if it meant lower estimates? Also, did you end up needing any professional help, or were you able to handle it all yourself with your documentation method?
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