How many yeras can you claim stock lossess in the State of New York?

Answer 1

All of them, if you either had a loss or if you have carryforwards of unallowable losses (usually the amount over $3K per year). So if in 2003 you lost $150K and you never sell another capital asset like a stock again, you can have your losses until 2052!

--A Damn Fine Tax Advisor

Answer 2

As many years as you have actual losses.