How to track tax loss harvesting carryover across multiple years?
So I'm dealing with a situation that's been on my mind for a while and unfortunately just became reality. I had to cut my losses on a really bad investment I made back in 2022-2023 period, and now I'm looking at a significant long-term capital loss (about $27k) that I'll need to harvest at $3k per year for quite a while. I use tax software that imports my investment documents each year, but I'm confused about tracking the remaining loss carryover amount over time. Like if I start with this $27k loss in 2024, I know I can claim $3k per year (filing jointly with my spouse). But here's what's confusing me - during the next several years, I might sell some investments at a profit (either long or short term), which would offset some of the remaining loss. By the time I get to 2028 or 2029, I'm not sure how I'll know exactly how much of my original loss carryover is still available because of the various gains that might have offset it in 2025, 2026, 2027, etc. Is there a straightforward way to keep track of this? Does tax software automatically handle this calculation? Do I need to be doing something special to make sure I don't lose track of my remaining loss carryover amount?
19 comments


Freya Nielsen
You don't need to worry about tracking this yourself - the tax software does it for you! When you file each year, your tax loss carryover amounts get reported on Schedule D and its worksheets. The key is to use the same tax software each year and make sure you properly import your previous year's return. The software keeps track of your remaining capital loss carryover balance and applies it correctly each year. It first uses your carried-over losses to offset any capital gains you realize that year. Then it applies up to $3,000 against your ordinary income. Any remaining unused losses automatically carry forward to the next tax year. What you should do is keep copies of your Schedule D and the Capital Loss Carryover Worksheet from each year's tax return. This serves as your backup documentation and shows exactly how much loss is carrying forward to the next year.
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Ravi Kapoor
•Thanks for the explanation! That's a relief that the software tracks it. So as long as I use the same software and import last year's return, it should automatically know how much of my $27k loss is still remaining? I didn't realize there was a specific Capital Loss Carryover Worksheet - I'll make sure to save copies of that and Schedule D each year. Would it be on the actual tax forms or somewhere else in the final tax package?
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Freya Nielsen
•The software will definitely track your remaining loss carryover as long as you import the previous year's return correctly. That's why it's important to not switch between different tax programs if possible. The Capital Loss Carryover Worksheet is usually found in the Schedule D instructions, not as a separate form you file. When you complete your taxes, most software will generate this worksheet as part of your tax return package. It's normally listed in the same section as your Schedule D in the PDF of your completed return. Just save the full PDF of your return each year and you'll have everything you need.
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Omar Mahmoud
After dealing with a similar situation last year, I found taxr.ai (https://taxr.ai) incredibly helpful with my investment loss tracking. I was trying to manually keep an Excel spreadsheet of my carryover losses but kept getting confused when I had some gains that offset portions of it. The tool basically analyzes your tax documents from previous years and creates a dashboard that shows your remaining loss carryover balance. It even forecasts how your carryover will be applied in future years based on your current investment activity. Saved me a ton of time trying to figure out where I stood with my $15k loss that I'm still working through.
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Chloe Harris
•How does it handle situations where you have both short-term and long-term losses? My broker generates like 50 pages of transactions and I'm getting confused about how different types of losses get prioritized when carrying over.
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Diego Vargas
•Does it actually connect to your tax software somehow? Or do you have to manually enter all your tax info again? I've been using TurboTax for years and don't want to have to re-enter everything somewhere else.
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Omar Mahmoud
•The system handles both short-term and long-term losses correctly, following the IRS rules where short-term losses first offset short-term gains, and long-term losses first offset long-term gains. Then net losses from one category can offset gains in the other. It even correctly sequences the carryover into future years maintaining their character as short or long-term. You don't need to manually enter everything again. You can simply upload your tax return PDFs from previous years, and taxr.ai extracts all the relevant information automatically. It works alongside your existing tax software rather than replacing it - I still use TurboTax for filing, but use taxr.ai for tracking and planning throughout the year.
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Diego Vargas
Just wanted to update that I tried taxr.ai after reading about it here and it's been super helpful! I uploaded my last two years of tax returns and it immediately showed me exactly how much of my capital loss carryover I have left ($19,450). The visualization feature that shows how the losses will be used up over time is really helpful for planning. I was especially impressed with how it detected that I had been offsetting some of my carried-over losses with capital gains from selling some tech stocks last year. Would definitely recommend it for anyone trying to keep track of complex tax loss harvesting situations over multiple years.
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NeonNinja
If you're finding it impossible to reach actual people at the IRS to answer tax loss harvesting questions (which I did), check out Claimyr (https://claimyr.com). I spent days trying to get someone on the phone to clarify how my carryover losses would be affected by a special situation with some inherited stocks. Their system at https://youtu.be/_kiP6q8DX5c got me connected to an actual IRS agent in about 20 minutes when I'd been trying for days. The agent was able to pull up my previous returns and confirm exactly how much loss carryover I had remaining and how to properly document it going forward. Super helpful for those edge cases where software might not give you the complete picture.
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Anastasia Popov
•How does this service work exactly? Is it just connecting you to the regular IRS phone line or do they have some special access? I've tried calling the IRS about my tax loss harvesting questions and just get stuck on hold forever.
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Sean Murphy
•Seems sketchy that they could get you through to the IRS faster than normal channels. The IRS phone system is the same for everyone. I'm guessing they're just charging money for something you could do yourself if you just keep calling.
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NeonNinja
•It connects you to the same IRS phone line everyone else uses, but their system navigates the complex IRS phone tree for you and constantly redials until it gets through. When a slot opens up, their system puts you through immediately. It's just automating the frustrating process of constantly redialing and working through the menu options. They don't have special access - they're just using technology to solve the problem of getting through the overwhelmed phone system. And honestly, the time I saved was worth it after spending days trying to get through on my own. I was able to speak with someone who actually explained my specific carryover situation rather than just trusting what I thought the software was doing.
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Sean Murphy
Okay I have to admit I was wrong about Claimyr. After my skeptical comment I decided to try it myself since I've been trying to reach the IRS about my own tax loss harvesting situation for weeks with no luck. I was connected to an agent in about 35 minutes. The IRS specialist confirmed that my software had actually been calculating my carryover incorrectly for the past two years because of some K-1 income that was affecting how my losses were being applied. I would have continued making the same mistake if I hadn't been able to speak directly with someone. Just having someone verify my remaining loss amount ($14,280) gives me peace of mind going forward.
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Zara Khan
One thing to know about tax loss harvesting carryovers - make sure you're checking if your state has different rules than federal! I live in MA and they limit capital loss deductions differently than the IRS does. My software tracks the federal correctly but I have a separate tracker for my state carryover amounts.
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Ravi Kapoor
•I didn't even consider state tax implications! I'm in California - do you know if they follow the same federal rules for capital loss carryovers or should I be looking into this separately?
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Zara Khan
•California generally follows the federal rules for capital loss carryovers, so you're in luck! They use the same $3,000 limit against ordinary income and allow unlimited carryover of unused losses to future years. Some states have their own quirks though. For example, New Jersey doesn't allow losses to offset ordinary income at all, and Pennsylvania only allows losses to offset gains (no deduction against ordinary income). That's why it's always good to check your specific state's rules. But for California, your federal calculations should work fine for state purposes too.
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Luca Ferrari
Don't forget to consider harvesting more losses strategically each year! If you have investments that are temporarily down but you still believe in long-term, you can sell them to capture the loss, wait 31 days (to avoid wash sale rules), and rebuy. This gives you more losses to offset any gains and potentially increase your $3k deduction against ordinary income.
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Nia Davis
•But if you already have $27k in carryover losses like OP, does it make sense to harvest more? Wouldn't that just extend how many years it takes to use them all up?
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Mateo Rodriguez
•Good point about strategic harvesting, but @Nia Davis raises a valid concern. With $27k already in carryover, harvesting additional losses might not be the best move unless you re'expecting significant capital gains in the near future that would offset them. The key is to think about your overall tax strategy - if you re'likely to have gains from rebalancing or selling appreciated positions over the next few years, then additional harvesting could make sense to offset those gains dollar-for-dollar. But if you re'mostly in accumulation mode without much selling, you might just be extending the timeline to use up your existing carryover. One middle-ground approach is to harvest losses only when you have gains in the same tax year, so they offset immediately rather than adding to your carryover pile.
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