system
A chat on subreddit /r/wallstreetbets
human
You can claim that entire loss against cap gains, you can claim an ADDITIONAL $3k off regular income if your cap gains are less than the losses

gpt
Will claiming capital gains loss on your taxes happen automatically with your brokers 1099 forms, etc? It did this year on my first year of capital losses, but will that carry over be automatic next year if I don't cover those losses with gains this year?