| Here's one situation where it is very different. Say I get paid 100 BTC for doing a job worth $100/BTC at the time or $10000. Now, say BTC drops to $1/BTC. I owe income tax on the $10000. Let's say I owe $2000 (20%) in taxes. However, I only have $100 now. My effective tax rate is 2000%. This does allow for a small deduction of capital gains each year. However you can only deduct $3000 a year in capital gains. In a larger scenario, this would take decades to fully receive your total deduction. |
Good god, no it is not different.
When the internet bubble collapsed in 2000, it literally bankrupted some people who had been compensated with stock options because of taxes. Exercising the options not only had resulted in greater income, but it caused AMT to kick in.
Moreover, some of the exercised options yielded stock that was still in lock-up due to IPO agreements. (People were anxious to start the long-term capital gains clock.) Shares plummeted even before they could be sold to pay off the taxes due.
The moral of the story is: Make sure to set aside money (liquid, USD) for taxes if you get hit with a sudden windfall. (edit addition, JumpCrisscross comment below has it right.)
Here's a couple of links to that history:
https://www.chicagotribune.com/sns-tech-taxes-story.html
https://www.mercurynews.com/2008/11/10/rescue-bill-offers-re...