Re:Why the Dow is a useless market index
by obblekk on Sunday April 09, 2017 @03:19PM
(#14073880)
I believe this is not allowed by the IRS because ETFs tracking similar indices would be considered 'substantially identical', but I'm not sure [1]. If it is allowed, then you're right - this would be the most efficient way to implement tax loss harvesting.
[1] https://www.irs.gov/publications/p550/ch04.html#en_US_2016_p...
[ Parent
| on HN ]
Different indices are not substantially identical.
Different ETFs tracking the same index (e.g., SWPPX and VOO) are likely to be determined substantially identical. (I don't know that the IRS issued guidance on this yet.)
Yes, they choose different indices precisely because of wash sale rules.