According to what? There is no official IRS guidance that states that an altcoin to bitcoin trade is a realized event. Because random people posted their opinions on sites indexed by google does not mean it is so. And if you look at the official IRS guidance, it only mentions selling crypto for USD, and exchanging crypto for real assets (like a coffee), which ARE both taxable.
When stocks are sold, they are sold for USD, and then the proceeds are used to buy another stock. It is not comparable to a crypto-crypto trade. And stocks have real assets like land, buildings, equipment, intellectual property, employees, and so on, none of which exists in an altcoin. Tax professionals have no understanding of crypto. Many will admit that they cannot provide guidance. Others with no experience/understanding of crypto think an altcoin is like a share of a stock. So they can give advice which is wrong.
Like-kind has nothing to do with anything. It's for people exchanging land or property, or similar things. I cannot claim like-kind for stocks. If I was discussing stocks and brought up like-kind, it would mean nothing, just like like-kind for crypto means nothing.
Are you really this stupid or have been living under a rock. !?
Please do not spread false information as you will get others in trouble with false reporting. !!!
Here is the tax documentation guidelines from coinbase and the IRS.
https://www.coinbase.com/bitcoin-taxes#doyouoweWhat's taxable
I.e. “converting” one crypto into another. Using bitcoin to buy ethereum is considered a disposition of the bitcoin, for example
https://www.irs.gov/pub/irs-drop/n-14-21.pdf"Q-6: Does a taxpayer have gain or loss upon an exchange of virtual currency for
other property?
A-6: Yes. If the fair market value of property received in exchange for virtual currency
exceeds the taxpayer’s adjusted basis of the virtual currency, the taxpayer has taxable
gain. The taxpayer has a loss if the fair market value of the property received is less
than the adjusted basis of the virtual currency. See Publication 544, Sales and Other
Dispositions of Assets, for information about the tax treatment of sales and exchanges,
such as whether a loss is deductible. "