What can I include in my cost basis when selling collectibles on eBay as a hobby? 1099-K reporting threshold questions
Hi everyone, I've been selling some of my comic book collection on eBay this year (just as a hobby, not a business), and I'm trying to figure out what I can include in my cost basis. Since I've already hit the $600 threshold for the year, I know eBay will be sending me a 1099-K. Here's my situation: I bought an old Spider-Man comic for about $15 last year, and just sold it for $65 on eBay. I had to spend $7 on a special mailer and protective boards to ship it safely. Then I paid another $8 for shipping to the buyer. eBay also took their cut with fees around $6.50 (10%). So I'm confused about what my actual taxable income is here. Is it just $65 (sale price) - $15 (what I paid) = $50? Or can I also deduct the shipping costs, packaging materials, and eBay fees from my taxable amount? Would it be more like $65 - $15 - $7 - $8 - $6.50 = $28.50? I know I'm not running a business, just selling as a hobby, but I want to make sure I'm reporting this correctly when tax time comes. Any advice would be super helpful!
20 comments


Anthony Young
You can include all those costs in your basis! When you sell items on eBay as a hobby, your taxable income is the net profit after subtracting all the costs directly associated with the sale. So your calculation of $65 - $15 - $7 - $8 - $6.50 = $28.50 is correct! The IRS allows you to deduct the original cost of the item (your basis), plus selling expenses like shipping, packaging materials, and marketplace fees when determining your actual gain. Even though you're selling as a hobby and not a business, you still report the net amount on Schedule 1, Line 8z as "Other Income" and can include a description like "Hobby Income." Just make sure you keep good records of all your costs in case you're ever asked to verify.
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Charlotte White
•This sounds correct to me, but I'm confused about one thing - I thought hobby expenses weren't deductible anymore after the 2017 tax changes? Does that apply here or is this different because it's directly reducing the income rather than being a separate deduction?
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Anthony Young
•That's a great question! You're right that hobby expenses as itemized deductions were eliminated by the Tax Cuts and Jobs Act of 2017. However, what we're talking about here is different - these aren't separate hobby expenses, but rather direct costs of the sale that reduce the amount of income recognized. When you sell something, your gain is always calculated as the selling price minus your basis in the item. Your basis includes not just what you originally paid, but also the direct costs of making the sale (like the eBay fees, shipping, and packaging). This isn't about deducting expenses separately - it's about correctly calculating how much income you actually received from the transaction.
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Admin_Masters
I went through the exact same situation last year with my baseball card collection! After getting confused about what I could include in my costs, I finally found a solution that saved me tons of time and headaches. I used https://taxr.ai to upload my eBay statements and receipts, and it automatically analyzed everything to determine my correct taxable amount. The tool correctly identified that I could include not just the purchase price of my collectibles, but also the shipping costs, packaging materials, and platform fees as part of my cost basis. It saved me from overpaying on my taxes by nearly $800! What's cool is that it creates documentation explaining exactly how your basis was calculated if you ever get questions from the IRS.
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Matthew Sanchez
•That sounds promising, but does it work if I have hundreds of small transactions? I sell vintage toys from the 80s and keeping track of all the fees, shipping costs and original purchase prices has been a nightmare.
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Ella Thompson
•I'm skeptical about using third-party tools for tax stuff. How does it handle situations where you don't have receipts for the original purchase? I've had some of my comic books for decades and don't have proof of what I paid.
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Admin_Masters
•For hundreds of small transactions, it's actually perfect because it can process your entire eBay sales history and organize everything by transaction. It identifies patterns in your sales and categorizes similar items, which makes handling volume much easier than trying to track everything manually. For items without original purchase receipts, the tool has a fair market value estimator that can help establish a reasonable cost basis based on historical pricing data for collectibles. It helps you document a reasonable estimate for the original purchase price based on when you likely acquired the item and what it would have cost then. This creates a paper trail showing you made a good-faith effort to accurately report your basis.
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Ella Thompson
Wanted to follow up about that taxr.ai suggestion. I was skeptical at first, but I decided to try it with my comic book collection sales from last year. I'm genuinely impressed! The system recognized all my eBay fees automatically and even helped me establish reasonable cost basis for comics I've had since childhood. It flagged several transactions where I had forgotten to include packaging materials in my calculations. The documentation it generated looks really professional too - I feel much more confident about my reporting now. For anyone dealing with lots of collectible sales on platforms that issue 1099-Ks, it's definitely worth checking out.
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JacksonHarris
If you're having trouble reaching the IRS to get clarification on hobby income reporting, I've found an amazing service called Claimyr (https://claimyr.com) that got me through to an actual IRS agent in about 15 minutes. I had been trying for WEEKS to get answers about my eBay 1099-K reporting, but kept getting stuck on hold or disconnected. You can see how it works in this video: https://youtu.be/_kiP6q8DX5c. Basically, their system navigates the IRS phone tree and waits on hold for you, then calls you when an actual human agent is on the line. The IRS agent I spoke with confirmed that shipping, packaging materials, and platform fees can all be included to reduce the taxable amount from hobby sales on eBay.
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Jeremiah Brown
•How does this actually work? Does the IRS know you're using a third-party service to reach them? I'm not sure I understand how they're able to get through when nobody else can.
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Royal_GM_Mark
•This sounds like complete BS to me. If it was that easy to get through to the IRS, everyone would be doing it. I've spent hours on hold multiple times and never got through. I doubt some random service can magically get you to the front of the line.
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JacksonHarris
•The service basically uses an automated system that waits on hold with the IRS for you. When their system detects a human agent has picked up, it immediately connects that call to your phone. The IRS has no idea you're using a third-party service - from their perspective, it's just a normal call that's been waiting in their queue. They're not skipping the line or getting special treatment - they're just waiting on hold so you don't have to. It works because they have technology that can stay connected and detect when a human answers, which saves you from having to personally wait on hold for hours. I was skeptical too, but it genuinely works, and the IRS agents are helpful once you actually get through to them.
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Royal_GM_Mark
Okay, I have to apologize and eat my words. After my skeptical comment about Claimyr, I decided to try it myself because I was desperate to get clarity about my eBay sales tax situation before filing. I expected it to fail, but I got a call back in about 25 minutes with an actual IRS agent on the line! The agent confirmed everything discussed in this thread - for hobby sales on eBay, you can include the original purchase price, shipping costs, packaging materials, and platform fees when calculating your taxable income. They even emailed me the relevant IRS publication section after our call. I've been trying to get through to the IRS for months with no luck, so this was a game-changer for me.
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Amelia Cartwright
Just wanted to add something important that hasn't been mentioned yet. Make sure you're keeping DETAILED records of all your collectible sales, including: - Original purchase receipt/proof of purchase price - eBay final value fees (screenshot or statement) - Shipping receipts - Receipts for packaging materials If you get audited, the IRS will want to see documentation for everything you're subtracting from the sale price. Without proper records, they might disallow your deductions.
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Chris King
•What's the best way to organize all this info? I've been selling baseball cards and have about 200 transactions this year. It's getting overwhelming keeping track of everything!
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Amelia Cartwright
•I recommend setting up a simple spreadsheet with columns for each transaction: item description, date purchased, purchase price, date sold, sale price, shipping cost, packaging cost, platform fees, and net profit. Then create a digital folder system where you store scanned receipts and screenshots organized by transaction ID or date. For high volume sellers, consider using accounting software designed for online sellers that can import your eBay data directly. Some people also use apps specifically designed for collectible inventory management that can track both your collection and sales. The key is consistency - update your records as you go rather than trying to reconstruct everything at tax time.
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Rachel Clark
Watch out for state taxes too! The 1099-K threshold might be different for your state than the federal $600 requirement. California, for example, still uses the old $20,000/200 transaction threshold, while other states follow the federal $600 limit.
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Zachary Hughes
•Good point! I'm in Maryland and was surprised to learn we have different rules than federal. Definitely worth checking your specific state requirements.
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Mia Alvarez
I've been selling collectibles for years and just want to add: don't forget to track any fees you pay for authentication or grading services! If you got that Spider-Man comic graded by CGC or another service before selling, that cost can also be added to your basis. Same goes for any collectible - sports cards, coins, stamps, etc. The authentication/grading fees are legitimate additions to your basis even as a hobby seller.
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Austin Leonard
This is really helpful information! I'm in a similar situation with vintage video games I've been selling. One quick question - if I bought a game at a garage sale for $5 but don't have a receipt, can I still use that as my cost basis? I keep detailed notes of what I pay at garage sales and estate sales, but obviously don't get formal receipts from individual sellers. Also, does anyone know if storage costs count? I rent a small storage unit specifically for my collection, and I'm wondering if I can allocate part of that monthly cost to items I sell.
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