[acchow]

No, you are not understanding how it works. Your portfolio can be in the black every single year, but you can still use TLH to improve your returns every single year by harvesting losses in individual securities.

See: http://www.investopedia.com/articles/taxes/08/tax-loss-harve...

[zeroer]

Thanks. I understand how it works. I still think it will be difficult to after 15 years.