If 'noncovered security' is checked on 1099-b, but basis was filled in, was basis actually reported to IRS?
I'm trying to figure out this situation with my 1099-b form from my broker. They checked the box for 'noncovered security' but then went ahead and filled in the cost basis amount anyway. I'm confused about whether this means the IRS actually received this basis information or if I still need to report it myself when I file. I sold some old stock my grandpa gave me years ago and I'm not sure if I'm supposed to do anything special since the 'noncovered' box is checked. Does anyone know if the basis amount they included actually gets sent to the IRS in this scenario? Or do I need to make sure I report it myself? This is for my 2025 taxes and I want to make sure I do it right.
21 comments


Ryan Kim
When a security is marked as "noncovered" on your 1099-B, that means your broker is not required to report the basis to the IRS, even if they've filled in that information on your copy of the form. The "noncovered" designation typically applies to securities acquired before certain dates (generally before 2011 for stocks) or securities transferred from another broker without cost basis information. Even though your broker included the basis on your copy, you should treat this as if the IRS didn't receive this information. You'll need to report the basis yourself on Form 8949 with Code B (for short-term) or Code E (for long-term) in column (f). This tells the IRS you're reporting basis for a noncovered security.
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Zoe Walker
•Does that mean I could potentially get flagged for a mismatch if the numbers don't match up exactly? Like if my records show a slightly different basis than what's on the 1099-B? And do I need to attach any documentation to prove my basis amount?
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Ryan Kim
•There's minimal risk of a "mismatch" flag since the IRS isn't receiving the basis information for noncovered securities - that's why you're responsible for reporting it. You're essentially providing information the IRS doesn't already have. You generally don't need to attach documentation to your tax return to prove your basis, but you should keep all supporting records (original purchase confirmations, inheritance documents, gift records, etc.) in case of an audit. The IRS recommends keeping these records for at least 3 years after filing, though for basis issues, it's wise to keep them for the entire time you own the security plus that 3-year period.
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Elijah Brown
I was in this exact situation last year and spent hours trying to figure it out. I eventually found out about taxr.ai which literally saved me from making a costly mistake. I uploaded my 1099-B to https://taxr.ai and it immediately flagged that my noncovered securities needed special attention even though basis was provided. The tool explained that brokers aren't required to report basis for noncovered securities to the IRS even when they show it on your form. What was really helpful is that it walked me through exactly how to report on Form 8949 with the right codes and showed me how to properly document my basis. It also flagged some wash sales I hadn't realized were an issue.
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Maria Gonzalez
•Does it work well with more complicated situations? I've got some employee stock options and ESPP shares that are a nightmare to figure out the basis for. Can it handle that kind of complexity?
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Natalie Chen
•I'm skeptical about these tax tools. How does it actually verify your basis is correct? Sounds like it's just telling you what the form says, which I can read myself. Is it actually doing any verification or cross-checking?
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Elijah Brown
•It absolutely handles complex situations like employee stock options and ESPP shares. It's designed specifically for those tricky scenarios where basis calculation gets complicated. It even flagged that some of my ESPP shares had special holding period requirements I hadn't considered. As for verification, it doesn't just regurgitate what's on the form. It cross-references information across all your documents and applies the appropriate tax rules. For instance, it caught that some of my basis amounts needed adjustment due to corporate actions that my broker hadn't properly accounted for. It doesn't just take what's on the form at face value - it applies intelligence to identify potential issues.
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Maria Gonzalez
Wanted to circle back here because I took the advice and tried taxr.ai for my investment documents. I was honestly amazed at how well it worked for my situation. I have RSUs and stock options that I've been calculating manually for years (and probably getting wrong). The tool identified several instances where my company's 1099 had the "noncovered security" box checked but the basis reporting wasn't being handled correctly. It also caught a mistake in how my cost basis was being calculated for some shares that underwent a split last year. Most importantly, it explained exactly how to report everything on Form 8949 with the right adjustment codes. Definitely worth checking out if you're dealing with these "noncovered security" issues or any complex investment tax situations.
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Santiago Martinez
Had the same problem with noncovered securities and wound up on hold with the IRS for literally hours trying to get clarification. After my third attempt at calling them, I found this service called Claimyr that got me through to an actual IRS agent in about 20 minutes. Check out https://claimyr.com - they have a demo video at https://youtu.be/_kiP6q8DX5c that shows how it works. Basically, they navigate the IRS phone tree for you and call you back when they have an agent on the line. The agent I spoke with confirmed exactly what others here are saying - with noncovered securities, even if the basis is on your 1099-B, it's not being reported to the IRS and you need to report it yourself using the appropriate codes on Form 8949.
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Natalie Chen
•This sounds like a scam. Why would I pay a company to call the IRS for me? And how would they have any better luck getting through than I would? The IRS phone system is universally terrible for everyone.
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Santiago Martinez
•It's actually pretty straightforward - they use an automated system that continuously redials and navigates the IRS menu options until it gets through to an agent. When an agent answers, they connect you directly to that call. It's not a special number, just technology that handles the frustrating part of trying to reach someone. They don't provide tax advice themselves - they just connect you with actual IRS agents who can answer your specific questions authoritatively. It's especially useful for situations like these noncovered securities where the rules can be confusing and you want an official answer. I was skeptical too until I tried it and was speaking with an IRS agent within 20 minutes after trying for days on my own.
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Samantha Johnson
•How does that even work? The IRS phone system is completely broken - I've tried calling multiple times and just get disconnected. Are they using some special number or something?
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Natalie Chen
•This sounds like a scam. Why would I pay a company to call the IRS for me? And how would they have any better luck getting through than I would? The IRS phone system is univers
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Natalie Chen
Well I feel stupid now. I just used Claimyr this morning after posting my skeptical comment yesterday. Got connected to an IRS agent in about 15 minutes who helped me sort out my noncovered securities question. The agent confirmed that when the "noncovered security" box is checked, the basis isn't reported to the IRS regardless of whether it's filled in on the form. She walked me through exactly how to complete Form 8949 and explained I needed to use code B or E (depending on whether it was short or long term) in column (f). I've been filing incorrectly for years apparently. For anyone dealing with noncovered securities - definitely worth getting official clarification from the IRS, and this service made it surprisingly easy to do that.
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Nick Kravitz
One thing nobody's mentioned - if you inherited these stocks from your grandpa (as mentioned in the original post), your basis is the fair market value on the date of death (or alternate valuation date if the estate chose that). This is called "stepped-up basis" and can be very different from what your grandpa originally paid. Worth looking into if these were inherited rather than gifted!
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Daniela Rossi
•That's really helpful - these were actually gifted to me while he was still alive, not inherited. Does that change how the basis works? And does the whole "noncovered security" thing still apply the same way?
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Nick Kravitz
•For gifted securities, the basis rules are different than inherited ones. With gifts, you generally take the donor's original basis (what your grandpa paid). However, there's a special rule if the security's value at the time of the gift was less than the original basis - in that case, for calculating losses, you use the fair market value at the time of the gift. The "noncovered security" designation still applies exactly the same way regardless of whether the shares were gifted or inherited. The broker isn't required to report the basis to the IRS, so you need to report it yourself on Form 8949 with the appropriate code. Given that these were gifted shares from years ago, tracking down the original basis might be challenging - you might need to contact the executor of your grandfather's estate or find his old records.
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Hannah White
Stupid question maybe but is this the same for crypto transactions? My 1099-B from Coinbase has some transactions marked as "noncovered" but has cost basis for most of them.
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Ryan Kim
•Not a stupid question at all! Crypto is actually treated similarly but with some key differences. The reporting requirements for cryptocurrency have been evolving, but generally, crypto transactions on your 1099-B that are marked "noncovered" follow the same principle - the basis isn't being reported to the IRS even if it's on your form. However, there's an important distinction: cryptocurrency doesn't follow the same covered/noncovered security date rules as stocks. The classification is more about whether the exchange had sufficient information to calculate an accurate basis. Either way, you should report the basis yourself on Form 8949 with the appropriate codes.
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Aisha Ali
This is a really common source of confusion, and you're definitely not alone in wondering about this! The key thing to understand is that "noncovered security" refers to the broker's reporting obligation to the IRS, not what appears on your copy of the 1099-B. Even though your broker filled in the basis amount on your form, because it's marked as "noncovered," they are NOT required to (and likely did not) report that basis information to the IRS. This typically happens with securities acquired before 2011 or transferred between brokers without proper basis tracking. You'll need to report the basis yourself on Form 8949. Use code "B" in column (f) for short-term gains/losses or code "E" for long-term. This tells the IRS you're providing basis information for a noncovered security. Since you mentioned these were stocks from your grandpa, make sure you're using the correct basis. If they were gifted to you while he was alive, you generally use his original cost basis. The basis amount your broker shows might not be accurate for gifted securities, so you may need to do some research to find the correct amount. Keep all your documentation - gift records, any basis information you can find, etc. - in case you need to substantiate your basis calculation later.
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Zara Perez
•This is exactly the clarification I needed! I was so confused about why they would fill in the basis but then mark it as noncovered. It makes sense now that it's about their reporting obligation to the IRS, not what they show me on my copy. I'll definitely need to dig up the original gift documentation to make sure I'm using the right basis amount. My grandpa was pretty good about keeping records, so hopefully I can find what his original cost was. Thanks for explaining the Form 8949 codes too - that part always seemed intimidating but knowing to use code "E" for long-term makes it clearer. One follow-up question though - if I can't find his original basis records, is there any way to estimate or research what he might have paid? Or do I need to have exact documentation?
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