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Do altcoin trades count as like-kind exchanges? (Deferred capital gains tax)
Like-kind of exchanges have a list of requirements. The IRS has not issued formal guidance in the matter. I recommend to be aggressive and claim the exchange, while justifying it with a good analogy to prove good faith (and persuade the IRS official reading it the risk of losing in tax court would be to high). Worst case the IRS will attempt to reject the exchange, at which point you could still pony up to get rid of the problem, interest being the only real risk. For example: Past tax court rulings have stated that collectable gold coins are not like kind to gold bars, and unlike silver coins, but investment grade gold coins are like kind to gold bars. So you could use a justification like this: I hold Bitcoin to be like-kind to Litecoin, because they use the same fundamental technology with just a tweak in the math, as if exchanging different grades of gold bars, which has been approved by tax court ruling #xxxxx. Note that it doesn't matter whether any of this actually makes sense, it just has be reasonable enough for you to believe, and look like it is not worth pursuing to an overworked IRS official glancing at it. I haven't tried this yet, so up to now this is a guess, but it's a good enough guess in my estimation that I will be using it on some rather significant amounts next year.