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missing 1099 from defunct exchange — update in comments

Started by grace_h_17 · Mar 5, 2025 · 4,248 views · 4 replies
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
GH
grace_h_17 OP

I'm dealing with a situation and need some guidance fr fr.

missing 1099 from defunct exchange. I've been dealing with this for about 7 months now and the situation isn't improving.

I have already tried to resolve this directly but got conflicting advice.

Has anyone been through something similar? What worked for you?

AJ
average_joe_8

I've dealt with this before.

I ended up having everything documented, which cost about $3-6 but saved me a lot more in the long run.

JC
jchen92_13

Yep, this is textbook.

In my case, it took about 3-6 months to resolve. The key was having everything documented.

SR
samantha_r_10

Dealt with this exact thing last year.

What trips people up most is escalating to a supervisor/manager. I'd recommend following the formal complaint procedure instead.

PP
paper_pusher_3

CPA specializing in cryptocurrency taxation here. The missing 1099 from a defunct exchange is a scenario I deal with regularly, especially after the collapse of FTX and several smaller platforms. Here is the practical approach I use with my clients.

First and most important: you are still required to report your crypto transactions regardless of whether you receive a 1099. The IRS has made this abundantly clear in their FAQ on virtual currency and in Notice 2014-21. The obligation to report lies with the taxpayer, not the exchange. A missing 1099 is not a defense to underreporting income.

Regarding cost basis: if you truly cannot determine what you paid for the crypto, the IRS does not allow you to simply use zero basis (which would maximize your gain). Instead, apply the best available evidence -- market prices on the dates of acquisition, average cost basis from the exchange period, or comparable transaction data. Some crypto tax software platforms have built-in tools for estimating basis from defunct exchanges using historical price data.