How to report bitcoin transactions on 1099-B from Cash App for tax filing
Hey everyone, I could really use some advice about crypto reporting. This is my first year trading cryptocurrency and I'm a bit confused about my tax situation. I recently received a 1099-B form from Cash App showing proceeds of around $21k from my bitcoin transactions. Here's what happened: I bought bitcoin through Cash App, transferred it to my blockchain wallet, and then moved it to an online gaming site. I ended up withdrawing all my funds back to Cash App eventually, but overall I actually lost money on this whole thing. I'm definitely at a net loss, not a profit. The problem is I already filed my taxes and got my refund before this 1099-B showed up. Now I'm wondering what to do. Should I file an amended return? How do I even report this correctly since I actually lost money? Can I just ignore this form since I didn't profit? What happens if I don't report it at all? I'd prefer to do the right thing and report it properly, but I'm totally lost on how to handle crypto losses on my tax return. Any help would be super appreciated!
26 comments

Sean Fitzgerald
Cash App's 1099-B only shows your proceeds (sales) without factoring in what you originally paid for the bitcoin. This makes it look like you had $21k of income when really that was just the total amount of bitcoin you sold. You definitely need to report this on your tax return, even though you had a loss. The IRS receives a copy of that 1099-B, and they'll expect to see those transactions on your return. If you don't report it, you'll likely get a letter from the IRS saying you underreported your income. You'll need to file Form 8949 and Schedule D with an amended return (Form 1040-X). On Form 8949, you'll list each transaction showing both what you sold the bitcoin for (proceeds) and what you originally paid (cost basis). This will show your actual loss, which can offset other capital gains or up to $3,000 of ordinary income. If Cash App didn't provide cost basis information on your 1099-B, you'll need to calculate this yourself using records of your purchases. Document everything carefully - dates, amounts, and transaction details.
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Zara Khan
So if I'm in a similar situation but my crypto transactions were only about $3k total and I lost maybe $200, is it still worth amending? Will the IRS really come after me for such a small amount? Also, how do you figure out the cost basis if you made multiple purchases of Bitcoin at different prices?
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Sean Fitzgerald
Yes, you should still amend your return even for smaller amounts. The IRS matching system flags discrepancies regardless of the amount, and dealing with an IRS notice later is much more hassle than just filing an amendment now. For calculating cost basis with multiple purchases at different prices, you'll need to use either FIFO (First In, First Out) or specific identification method. FIFO assumes you sell your oldest coins first. Keep a spreadsheet tracking when you bought each portion of Bitcoin and at what price. When you sell, match those sales to your earliest purchases. Some tax software like CoinTracker or TaxBit can help automate this if you have many transactions.
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MoonlightSonata
I went through this exact nightmare last year and ended up using https://taxr.ai to figure it all out. I was freaking out because I had like 50+ transactions across different platforms and no idea how to report them correctly. Their system analyzed all my crypto transactions and figured out my actual gains/losses, even when the 1099 forms made it look like I had way more income than I actually did. What really helped was that they could pull in data from Cash App and other platforms to calculate my true cost basis, which is what was missing from my 1099-B. Then they generated all the forms I needed to file my amended return. The whole process took like 30 minutes instead of the days I was spending trying to figure it out myself.
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Mateo Gonzalez
Does this actually work for gambling transactions though? Like when you're moving crypto to gaming sites? I thought those might be treated differently than regular crypto trades.
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Nia Williams
I'm skeptical about these services. How much did it cost? And how do you know they calculated everything correctly? I've heard horror stories about people using tax services that messed up their crypto reporting and they got audited.
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MoonlightSonata
The system handles transfers to gaming sites too - it can distinguish between actual taxable events vs. just moving your crypto between wallets. When you withdraw from gambling sites, you report those as proceeds, but you still get to claim your original purchase cost as your basis. Regarding accuracy, they use the same calculation methods that tax professionals use, but it's automated. The reports show every transaction with full audit trails. I paid less than what H&R Block quoted me just for a consultation about my crypto taxes. And it saved me thousands because it properly documented my losses that I could deduct.
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Nia Williams
Just wanted to follow up - I decided to give https://taxr.ai a try after my skeptical comment. Holy crap, it's legit. I uploaded my Cash App 1099-B and it immediately identified that the form was missing cost basis info. The system helped me import my purchase history and correctly calculated that I had a $1,200 loss, not the $7,000 gain that the raw 1099-B made it look like. It generated all the forms I needed for my amended return with the transactions properly categorized. The reports it created would definitely stand up to an audit since they show every single transaction with dates, amounts, and calculated basis. Definitely worth it for the peace of mind alone, especially since I was about to just ignore the 1099-B altogether which would have been a huge mistake.
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Luca Ricci
If you're still waiting for the IRS to respond to your amended return or any questions, I highly recommend using https://claimyr.com to actually get through to a human at the IRS. I filed an amended return for crypto last year and was getting nowhere after months of waiting. Used their service and got connected to an IRS agent in about 15 minutes instead of the 2+ hours I spent on hold previously (and still got disconnected). The agent was able to look up my case, confirm they received my amended return, and give me an actual timeline for processing. Check out how it works: https://youtu.be/_kiP6q8DX5c They basically wait on hold for you and call you when an agent picks up. Saved me so much time and frustration trying to figure out if my paperwork was even received.
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Aisha Mohammed
How does this actually work? Do they have some special access to the IRS or something? Seems too good to be true that they can get through when regular people can't.
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Ethan Campbell
This sounds like a scam. Why would I pay someone else to call the IRS for me? And how do they actually get through faster than I would? The IRS phone system doesn't have any special backdoors for services.
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Luca Ricci
They don't have special access - they use automated technology to constantly redial and navigate the IRS phone tree until they get through to an agent. When an agent answers, their system connects you directly to that call. It's basically like having someone sit there and redial for hours so you don't have to. The reason it works is because most people give up after being on hold for an hour or getting disconnected, but their system never gives up. It's definitely not a scam - you only pay if they actually connect you to an IRS agent, and you're the one who talks directly with the agent. No intermediaries once you're connected.
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Ethan Campbell
Ok I need to publicly eat my words. After calling the IRS for 3 days straight and getting disconnected every time, I tried https://claimyr.com as a last resort. I was VERY skeptical but desperate to find out why my amended return with crypto transactions was taking so long. Got a call back in about 25 minutes and was connected directly to an IRS agent. The agent confirmed my amended return was received but flagged for review specifically because of the crypto transactions. She was able to verify my documentation was sufficient and remove the review flag. My refund for the capital loss deduction should be processed within 2 weeks now instead of the 16+ weeks it would have taken otherwise. For anyone dealing with crypto tax issues, especially with amended returns, being able to actually talk to the IRS and get real answers is completely worth it.
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Yuki Watanabe
One thing nobody's mentioned yet - if you used the bitcoin for gambling, you might be able to deduct gambling losses against your gambling winnings (if you kept good records). That's separate from the capital gains/losses on the actual bitcoin transactions. Basically: 1. You report the crypto transactions on Form 8949/Schedule D (buying/selling bitcoin) 2. If you had gambling winnings/losses using that bitcoin, that goes on Schedule 1 instead Just make sure you have documentation for EVERYTHING. The IRS is super aggressive about both crypto and gambling. If you mixed these activities together, definitely get professional help since it's complicated.
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Anastasia Kuznetsov
AuthorThis is actually really helpful because I did use the bitcoin specifically for gambling. So if I understand correctly, I need to report both the bitcoin transactions themselves AND the gambling activity separately? Does this mean I could potentially claim losses in two different ways?
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Yuki Watanabe
You got it - they're two separate things for tax purposes. The bitcoin transactions (buying/selling crypto) are capital transactions reported on Schedule D. This would be any gain/loss from changes in bitcoin's value between when you bought and sold it. The gambling activities are reported as "Other Income" on Schedule 1. You can deduct gambling losses up to the amount of your gambling winnings as an itemized deduction on Schedule A, but only if you itemize and have documentation of both wins and losses. You can't double-count losses though - each loss can only be claimed once, either as a capital loss or a gambling loss, depending on its true nature.
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Carmen Sanchez
Just a warning - the IRS is REALLY focusing on crypto this year. My buddy ignored a 1099-B from Coinbase thinking his $2k in transactions was too small to matter, and he got hit with a CP2000 notice claiming he owed almost $800 in additional taxes plus penalties. Took him months to straighten out. The biggest issue with Cash App 1099-Bs is they often don't include your cost basis, so the IRS assumes your entire proceeds amount is pure profit unless you prove otherwise. Definitely file that amended return ASAP.
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Andre Dupont
Would using tax software like TurboTax or H&R Block be enough to handle reporting crypto correctly, or do you really need specialized software?
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Benjamin Johnson
TurboTax and H&R Block can handle basic crypto reporting, but they're not great if you have complex situations like multiple exchanges, DeFi transactions, or missing cost basis information. For simple buy/sell transactions with complete 1099-B forms, they work fine. The problem is when you have situations like @Anastasia Kuznetsov where the 1099-B doesn t'show cost basis or you have transfers between wallets and gambling sites. The general tax software will ask you to manually enter each transaction, but won t'help you figure out what your actual cost basis should be or how to properly categorize different types of crypto activities. If you only have a few transactions and good records, TurboTax is probably sufficient. But if you re'dealing with incomplete 1099s, multiple platforms, or mixed activities trading (+ gambling ,)you ll'likely need either specialized crypto tax software or a tax professional who understands crypto.
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Tyler Lefleur
Having dealt with a very similar situation myself, I want to stress that you absolutely cannot ignore that 1099-B, even though you lost money. The IRS receives a copy and their automated systems will flag the discrepancy if those transactions aren't on your return. Here's what you need to do: 1. **File Form 1040-X (Amended Return)** - Include Form 8949 and Schedule D to report your crypto transactions properly. 2. **Calculate your actual cost basis** - Since Cash App's 1099-B likely only shows proceeds ($21k), you need to prove what you originally paid for that bitcoin. Gather all your purchase records, bank statements, and transaction confirmations. 3. **Document the wallet transfers** - Moving bitcoin from Cash App → blockchain wallet → gaming site → back to Cash App creates a paper trail you'll need to maintain. Each transfer isn't necessarily a taxable event, but the final sale back to fiat currency is. 4. **Separate crypto gains/losses from gambling activity** - The bitcoin price changes are reported on Schedule D, while any gambling winnings/losses from the gaming site go on different forms. The good news is that since you had a net loss, properly reporting this will likely result in additional tax benefits (capital loss deductions) rather than owing more money. But you need to prove those losses with documentation. Don't wait - the sooner you file the amendment, the less likely you are to face penalties or interest charges. And definitely keep detailed records in case of future questions from the IRS.
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Raj Gupta
This is exactly the kind of comprehensive advice I was hoping to find! I'm actually in a very similar boat - got a 1099-B from Coinbase after already filing and I've been stressing about it for weeks. One quick question though - when you mention documenting wallet transfers, do those intermediate transfers (like moving from Cash App to blockchain wallet) create any taxable events themselves? Or is it only when you actually convert back to USD that it becomes taxable? I'm worried I might be missing some steps in calculating my actual gains/losses. Also, has anyone had experience with how long amended returns typically take to process when they involve crypto transactions? I'm hoping to get this sorted before it becomes a bigger issue.
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Victoria Scott
@Raj Gupta Great question! The wallet-to-wallet transfers themselves typically aren t'taxable events - they re'just moving your property between different storage locations, like moving money between your checking and savings accounts. The taxable events occur when you actually dispose of the crypto sell (it, trade it for something else, or use it to purchase goods/services .)In your case, the taxable event would be when you converted the bitcoin back to USD on the platform, not the intermediate transfers. However, you still need to document those transfers because they affect your cost basis calculations and the IRS wants to see the complete chain of custody. For processing times, amended returns with crypto typically take 12-20 weeks currently, sometimes longer if they get flagged for manual review. The IRS has been swamped with crypto-related amendments lately. If you re'anxious about the status, some people in this thread mentioned services that can help you actually get through to the IRS by phone to check on your case. The key is to file the amendment as soon as possible with complete documentation. Even if processing takes a while, having it filed shows good faith effort to comply, which can help if there are any penalty considerations later.
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Saanvi Krishnaswami
@Raj Gupta Great question! Generally, transferring crypto between wallets you own like (Cash App → blockchain wallet is) NOT a taxable event - it s'just moving your property from one location to another. The taxable events occur when you actually dispose of the crypto, which typically means selling it for fiat currency, trading it for other crypto, or using it to purchase goods/services. In your case, the taxable event would be when you sold the bitcoin back to USD on Cash App, not the intermediate wallet transfers. However, you still need to document those transfers for two reasons: 1 to) maintain the chain of custody for your records, and 2 to) prove the same bitcoin that you originally purchased was what you eventually sold. Regarding processing times for amended returns with crypto - from my experience and what I ve'seen others report, expect 12-20 weeks minimum. Crypto-related amendments often get flagged for manual review, which adds significant time. The IRS has been overwhelmed with crypto reporting issues, so they re'being extra careful. My amendment took about 16 weeks last year, but I ve'heard of some taking up to 6+ months. The key is filing it correctly the first time to avoid back-and-forth correspondence that would delay it even further. Make sure your documentation clearly shows your cost basis calculations and keep copies of everything you submit.
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CyberSiren
@Raj Gupta Great question about wallet transfers! Generally speaking, moving crypto between wallets you control like (Cash App → your personal blockchain wallet is) NOT a taxable event - it s'just moving your property to a different location. However, when you convert crypto to fiat currency USD (or) trade it for other cryptocurrencies, those ARE taxable events. In your case, the taxable events would likely be: 1. When you sold/converted bitcoin back to USD on any platform 2. If you traded bitcoin for other cryptocurrencies at different values The tricky part is that each sale/conversion needs to be matched with your original cost basis to calculate the actual gain or loss. Regarding processing times, crypto-related amended returns are definitely taking longer than usual. I ve'seen anywhere from 12-20 weeks, compared to 8-12 weeks for regular amendments. The IRS seems to be reviewing crypto transactions more carefully, especially when there are discrepancies with 1099 forms. My advice is to file the amendment ASAP and be extra thorough with your documentation. Include a statement explaining the transactions and why your return differs from the 1099-B. The more complete your documentation, the smoother the review process will be.
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NebulaNinja
@Raj Gupta Great question! The key distinction is between transfers and actual sales/exchanges. Moving crypto from one wallet to another like (Cash App → blockchain wallet → gaming site is) generally NOT a taxable event as long as you still own the same cryptocurrency. You re'just moving your property between different storage locations. The taxable events typically occur when you: 1. Sell crypto for fiat currency USD (2.) Trade one cryptocurrency for another like (BTC for ETH 3.) Use crypto to purchase goods/services So in your case, the actual sale back to USD on Coinbase would be the main taxable event you need to report. Regarding processing times - amended returns with crypto typically take 12-16 weeks to process, sometimes longer if they get flagged for manual review which (crypto returns often do .)The IRS has been overwhelmed with crypto-related amendments lately. I d'definitely recommend getting your amendment filed ASAP since the clock starts ticking once they receive it. One tip: if you need to talk to the IRS about your amended return status, some people in this thread mentioned using services like claimyr.com to actually get through to an agent instead of waiting on hold for hours. Might be worth it for peace of mind once you ve'filed.
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Paige Cantoni
Great question @Raj Gupta! The intermediate wallet transfers (Cash App → blockchain wallet → gaming site) typically are NOT taxable events by themselves, since you're just moving the same bitcoin between wallets you control. The taxable events happen when you actually dispose of the crypto - either by selling it for fiat currency, trading it for other cryptocurrencies, or using it for purchases. However, you still need to document these transfers because they establish the chain of custody for your bitcoin. The IRS wants to see that the bitcoin you eventually sold for $21k is the same bitcoin you originally purchased (to determine your cost basis). For amended return processing times - crypto-related amendments typically take 16-20 weeks right now, sometimes longer if they get flagged for manual review. The IRS has been extra scrutinous with crypto transactions, so expect delays. Some people have reported faster processing when they include really detailed documentation upfront that clearly shows their calculations. My advice: file the amendment ASAP even if you're still gathering some documentation. You can always provide additional support if the IRS requests it later, but getting it filed stops the clock on potential penalties for not reporting the 1099-B.
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