Transferred bitcoin from crypto wallet to Robinhood - 1099 shows undetermined uncovered sale with $0 basis
So I recently moved my Bitcoin from my crypto wallet over to Robinhood, and now I'm totally confused about my taxes. The 1099 form I received shows this transfer as an "undetermined uncovered sale" for about $30k with a cost basis of $0, which makes it look like I have a capital gain of $30k. But this doesn't make any sense to me! I originally paid around $25k for the Bitcoin - it wasn't a sale, just moving it from one platform to another. Can I just replace that $0 basis with the $25k I actually paid for the coins? It seems crazy that transferring between platforms would trigger a taxable event with an incorrect basis. Has anyone dealt with this before? I don't want the IRS thinking I made $30k in gains when I really didn't sell anything!
21 comments


Philip Cowan
This is actually a fairly common issue with crypto transfers. What's happening is that Robinhood doesn't have information about your original purchase price (cost basis), so they report it as $0 by default. This is why it shows as "undetermined" on your 1099. Yes, you absolutely can (and should) report the correct cost basis of $25k on your tax return. You'll need to report this on Schedule D and Form 8949. When you fill out Form 8949, you'll check box C for "Transactions not reported to you on Form 1099-B" and enter code B in column (f) to indicate that you're correcting the basis. Then enter your actual cost basis of $25k in column (e). Make sure you keep documentation of your original purchase to substantiate your cost basis in case of an audit. This could include the original purchase confirmation, bank statements showing the transfer to the original exchange, etc.
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Caesar Grant
•Thanks for explaining! So basically Robinhood is just saying "we don't know what this person paid originally" and the IRS won't automatically assume I owe taxes on the full $30k? Also, what happens if I can't find my original purchase records? My old exchange closed down.
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Philip Cowan
•The IRS doesn't automatically assume anything - it's your responsibility to report the correct information on your tax return. When you file with the correct basis, you're telling the IRS "the 1099 is incomplete, here's the actual information." If you can't find your original purchase records, you should try to reconstruct them as best you can. Look for bank statements showing transfers to the exchange, email confirmations, screenshots you might have saved, or even price histories to estimate when you bought. If your exchange closed down, check if they sent you any final transaction reports. In the worst case, you may need to make a good faith estimate, but be aware this could be questioned in an audit.
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Lena Schultz
I had almost this exact situation last year! After going crazy trying to figure it out myself, I found this amazing AI tax assistant at https://taxr.ai that specializes in crypto tax issues. You just upload your 1099 and any documentation you have about your original purchase, and it analyzes everything and tells you exactly how to properly report it. They explained that transfers between wallets/platforms aren't actually taxable events, but the reporting can make it seem that way. The AI guided me through correctly reporting my cost basis and even generated the proper 8949 form with all the correct adjustment codes. Saved me from potentially overpaying thousands in taxes!
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Gemma Andrews
•Does it work with other crypto exchanges too? I've got stuff spread across Coinbase, Binance, and a hardware wallet. Tax season is giving me a migraine.
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Pedro Sawyer
•I'm skeptical about these AI tools. How does it actually know your original cost basis if Robinhood doesn't? Sounds like you still need the original documentation either way.
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Lena Schultz
•Yes, it absolutely works with all major exchanges! You can connect multiple exchange accounts or upload statements from Coinbase, Binance, Kraken, etc. It reconciles everything across platforms and identifies transfers versus actual sales. Regarding documentation, you're right that you need something to establish cost basis. The AI doesn't magically create data that doesn't exist. What it does is help you properly document what you do have and fill out the correct forms. It can also help with methods to reconstruct missing data based on transaction timestamps and historical prices. The real value is in preventing the common mistake of double-counting or treating transfers as taxable events.
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Pedro Sawyer
Just wanted to follow up about that taxr.ai service. I decided to try it after posting my skeptical comment. I had a similar issue with transfers between wallets showing up as sales. The tool actually saved me thousands by correctly identifying transfers vs sales and distinguishing short vs long term gains. It also helped me document everything properly so I have support if I ever get audited. Definitely worth checking out if you're dealing with crypto across multiple platforms!
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Mae Bennett
After dealing with crypto tax nightmares for years, I finally found a way to get direct answers from the IRS using Claimyr (https://claimyr.com). I had a similar issue with incorrect basis reporting, and I needed to confirm the proper way to handle it. Regular IRS hold times were 3+ hours, but with Claimyr I had an actual IRS agent on the phone in less than 20 minutes. They have this system that essentially waits on hold for you, then calls you when an agent picks up. You can see it in action here: https://youtu.be/_kiP6q8DX5c The IRS agent confirmed exactly what to do with the undetermined basis situation and gave me the specific codes to use on Form 8949. Having that official guidance gave me peace of mind that I was doing things correctly.
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Beatrice Marshall
•Wait, how does this even work? The IRS phone system is notoriously impossible to get through. Are you saying this service somehow jumps the queue?
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Melina Haruko
•This sounds like a scam. Nobody can get the IRS on the phone that quickly. If it were possible, everyone would be doing it. Plus, why pay for something you can do yourself for free?
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Mae Bennett
•It doesn't jump the queue at all. The service basically calls the IRS and navigates the phone menu system for you, then waits on hold so you don't have to. When an IRS agent finally picks up, the system calls your phone and connects you directly to the agent. No, it's definitely not a scam. It's just a time-saving service. The reason everyone isn't doing it is simply because many people don't know about it. And yes, you can absolutely do this yourself for free if you have hours to wait on hold. I personally don't, so I found the service valuable. For something as important as confirming the proper tax treatment of crypto transactions, it was worth it to get definitive answers directly from the IRS.
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Melina Haruko
I need to admit I was completely wrong about Claimyr. After posting my skeptical comment, I decided to check it out since I had a similar crypto tax question I couldn't get answered. Used the service this morning, and they got me connected to an IRS agent in about 15 minutes when I had previously wasted 2+ hours on hold before giving up. The agent confirmed that I needed to use code B for basis adjustment on my form 8949 and explained exactly how to document my original purchase properly. The time saved was absolutely worth it.
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Dallas Villalobos
A lot of good advice here but I'm surprised nobody mentioned using cryptocurrency tax software like CoinTracker or Koinly. They can track your cost basis across multiple platforms and generate the proper tax forms. I've used CoinTracker for years and it automatically identifies transfers vs actual sales/trades.
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Kara Yoshida
•I tried a couple of those services but they seemed to have trouble with my specific situation. Do they handle the "undetermined uncovered" classification properly? And can they retroactively figure out my basis if I've already received the 1099 with incorrect info?
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Dallas Villalobos
•Yes, they can definitely handle your situation. The "undetermined uncovered" classification is just Robinhood's way of saying they don't have your cost basis information. These tracking tools let you import data from all your exchanges and wallets, then reconcile everything to identify your true cost basis. They can absolutely work retroactively. You'd import your historical data from wherever you originally purchased the crypto, and the software would match up the transfers to establish the correct cost basis. Just make sure you have access to your transaction history from your original purchase platform. Even if you've already received a 1099 with incorrect info, the software will generate the proper 8949 form with the correct basis information for your tax filing.
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Reina Salazar
Has anyone here actually been audited by the IRS for crypto stuff? I'm in a similar situation and I'm worried that if I report a different number than what's on the 1099, it'll trigger an audit.
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Saanvi Krishnaswami
•I was audited last year for exactly this issue. As long as you have documentation of your original purchase price, you'll be fine. The auditor understood that basis reporting for crypto is often incomplete. Just make sure you check the right box on Form 8949 to indicate you're correcting the basis info.
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Hannah White
I went through something very similar when I transferred my Ethereum from Coinbase to Robinhood last year. The key thing to understand is that the IRS matching system will flag discrepancies between what's reported on 1099s and what you file, but that doesn't automatically mean trouble if you can justify the difference. What I did was create a detailed spreadsheet showing the chain of custody for my crypto - original purchase date, amount paid, transaction hashes for the transfer, and screenshots of both platforms showing the same crypto moving between them. When I filed my return, I used Form 8949 with code B and included a brief statement like "Basis corrected - original purchase documentation available upon request." The most important thing is being able to prove this was truly a transfer and not a sale/repurchase. Keep records showing the same wallet addresses, transaction IDs, and timing. If the amounts and dates line up clearly as a transfer, you're in good shape. I never got audited, but I was prepared with a paper trail that clearly showed no taxable event occurred.
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Micah Trail
•This is incredibly helpful! I'm dealing with a similar transfer situation and was worried about the documentation requirements. When you say "transaction hashes for the transfer" - where exactly do you find those? I transferred from my hardware wallet to Robinhood and I'm not sure if I saved that information. Also, did you have to provide all that documentation upfront with your tax filing, or just keep it in case of questions later?
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Liv Park
•@c6c4ccd37dc1 For transaction hashes, you can usually find them in a few places: 1) If you used a hardware wallet like Ledger or Trezor, check the wallet software's transaction history - it should show the hash for outgoing transfers. 2) You can also look up your wallet address on a blockchain explorer like Etherscan (for Ethereum) or Blockchair and find the specific transaction there. 3) Some exchanges also provide transaction IDs in their withdrawal confirmations. You don't need to submit all the documentation with your tax return - just keep it organized in case the IRS asks for it later. I literally just filed Form 8949 with the corrected basis and a note that documentation was available upon request. The key is being able to quickly produce a clear paper trail if needed. Even if you don't have the exact transaction hash, bank statements showing the timing of your original purchase plus screenshots of your wallet balance before/after the transfer can help establish it was a legitimate transfer rather than a sale.
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