Tax loss harvesting-
From what I understand, if I lose money in stocks etc, I can apply up to $3,000 of the principal loss against my personal income (as opposed to other investments, in which case it would be unlimited), and I can carry over the rest to future years.
If I lost $10,000 in 2020, but didn't claim the $3000 against my income on my 2020 return, can I start claiming it on my 2021 return? ($3000 on my 2021 return, $3000 on 2022, and $1000 in 2023)
Or the carryover only works if you started claiming in the year of the event?
Thank you !