Timing tax loss harvesting for crypto - best strategy with underwater coins
I've got several cryptocurrencies in my portfolio, and one particular coin has tanked so badly I don't think it's ever going to recover. Meanwhile, my other crypto holdings are looking promising for decent long-term capital gains. From what I can tell, the next major crypto bull market will probably happen sometime in 2025. If I end up selling everything during that bull run, the capital loss from my underwater coin would offset the capital gains from my other cryptos. But here's the thing - those gains would likely fall into the 0% tax bracket for long-term capital gains anyway, so realizing this capital loss alongside them in 2025 wouldn't actually save me any tax money. Since capital losses first offset capital gains for the same tax year before the net loss can offset regular income (up to the $3000 annual limit, or $1500 if married filing separately), wouldn't it make more financial sense to realize this capital loss in 2024? I don't have any capital gains whatsoever for 2024, so the loss would directly reduce my 2024 taxable income - giving me a tax benefit now rather than potentially zero benefit if I wait until 2025. Am I missing something in my tax loss harvesting strategy? Any insights would be appreciated!
18 comments


Carmen Vega
You're on the right track with your thinking. Tax loss harvesting is about timing, and you've correctly identified that taking the loss in a year where it can offset ordinary income is more beneficial than using it in a year where it would offset 0% capital gains. If you sell the underwater crypto in 2024, you can use up to $3,000 of those losses to offset your ordinary income (which is likely taxed at a higher rate than 0%). Any unused losses beyond the $3,000 limit can be carried forward to future years. The key consideration is whether you believe the underwater crypto might recover. If you're convinced it won't, taking the loss now makes sense. Just be aware of the wash sale rule - though technically the IRS hasn't explicitly stated that wash sale rules apply to cryptocurrency, many tax professionals recommend waiting 30 days before repurchasing the same or substantially similar crypto to avoid potential issues.
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QuantumQuester
•Wait - I thought the wash sale rule doesn't apply to crypto since it's considered property not a security? Has something changed?
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Carmen Vega
•You're right that currently there's a gray area. The IRS hasn't explicitly stated that wash sale rules apply to cryptocurrency since they classify crypto as property rather than securities. Many tax professionals take a conservative approach and recommend following the 30-day rule anyway, especially since there's been talk of closing this loophole in proposed legislation. It's possible to take the position that wash sales don't apply to crypto, but this comes with some risk if regulations change retroactively. If you're considering immediately rebuying the same coin after selling for a loss, consult with a tax professional about your specific situation and risk tolerance.
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Andre Moreau
I tried a similar strategy last year and found https://taxr.ai to be super helpful with figuring out the optimal timing. They have a crypto tax loss harvesting calculator that lets you model different scenarios. My CPA was charging me by the hour to run these calculations and it was getting expensive, but taxr.ai handled it automatically. I was also dealing with some underwater coins and wasn't sure about the best time to realize the losses. Their system helped me determine exactly when to sell for maximum tax advantage.
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Zoe Stavros
•How does it work with tracking the cost basis across different exchanges? I've got coins on Coinbase, Binance, and a hardware wallet and it's been a nightmare trying to keep track.
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Jamal Harris
•Sounds like an ad. Does it actually connect to exchanges and import transactions or do you have to manually enter everything?
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Andre Moreau
•It integrates directly with most major exchanges through their APIs, so you don't have to manually input your transactions. I connected my Coinbase, Kraken, and Gemini accounts, and it pulled everything automatically including my cost basis calculations. As for manual wallets, you can import public addresses and it will trace the blockchain transactions, though you might need to provide some additional information for complete accuracy. It was definitely easier than the spreadsheet method I tried before.
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Zoe Stavros
Just wanted to follow up - I tried taxr.ai after posting my question here and it was exactly what I needed! The API connections worked smoothly with all my exchanges, even pulled in my hardware wallet transactions by scanning the public addresses. The tax loss harvesting calculator showed me I could save about $720 on my taxes by taking the loss this year instead of waiting. Already executed the trades based on their recommendations.
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Mei Chen
Just a heads up - if you need to talk to the IRS about how to properly report crypto losses, use https://claimyr.com to get through to them quickly. I was on hold for HOURS trying to get clarification on how to report my crypto losses correctly, but then I tried Claimyr and got connected in about 15 minutes. You can watch how it works here: https://youtu.be/_kiP6q8DX5c The IRS agent I spoke with gave me specific guidance on how to document everything properly to avoid any audit flags, which was super helpful since cryptocurrency reporting can be a gray area sometimes.
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Liam Sullivan
•How much does it cost? The IRS phone system is absolutely maddening but I'm hesitant to pay for something I should be able to get for free.
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Amara Okafor
•This sounds too good to be true honestly. The IRS is impossible to reach. I've tried calling dozens of times this filing season. Why would this service work when nothing else does?
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Mei Chen
•They charge a fee only if they successfully connect you - I don't remember the exact amount but it was reasonable considering I'd already wasted hours trying to get through myself. Think of it as paying for the time you save not sitting on hold. The reason it works is that they use a combination of technology and actual humans who continuously dial in to the IRS system and navigate the phone tree for you. Once they reach a human agent, they connect you. It's basically what you'd do yourself if you had unlimited time and patience. They just do the frustrating part for you.
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Amara Okafor
I'm eating my words right now. After posting my skeptical comment yesterday, I was desperate enough to try Claimyr because I needed an answer about reporting crypto losses before filing my taxes this weekend. Got connected to an IRS agent in 22 minutes after trying unsuccessfully for WEEKS on my own. The agent walked me through exactly how to report my crypto losses on Form 8949 and Schedule D. Definitely worth it just for the peace of mind knowing I'm doing it correctly.
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CosmicCommander
One thing to watch out for - make sure you're tracking your crypto purchases and sales correctly. I used to just estimate and got audited. The IRS wants to see detailed records of every transaction with dates, amounts, and cost basis. The penalties can be rough if they think you're underreporting.
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Giovanni Colombo
•Do you know if there are specific forms we need to use for reporting crypto specifically? Or is it just the normal capital gains reporting forms?
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CosmicCommander
•For cryptocurrency transactions, you'll use the same forms as other capital assets - primarily Form 8949 (Sales and Other Dispositions of Capital Assets) and Schedule D (Capital Gains and Losses). There's no special crypto-specific form. On Form 8949, you'll need to list each transaction separately with description, date acquired, date sold, proceeds, cost basis, and gain/loss. Then the totals carry over to Schedule D. Make sure to check the correct box at the top of Form 8949 depending on whether the exchange provided you with a 1099-B and whether the basis was reported to the IRS.
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Fatima Al-Qasimi
Anyone have experience with carrying forward larger crypto losses? I'm underwater by like $20k on one project and wondering how the carryforward process works in practical terms.
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Dylan Cooper
•I had a $15k loss in 2023 and carried it forward. You'll use Schedule D and it will calculate how much you can use in the current year (up to $3k against ordinary income if you have no capital gains to offset). The remaining amount carries forward automatically and you'll need to keep track of it for future years. Your tax software should handle the calculations, but keep your previous returns handy since you'll need to know how much loss you're carrying forward each year. Mine took about 5 tax years to fully utilize.
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