Can I tax loss harvest stocks sold in my HSA and IRA accounts?

[yatoshura]

I sold some stocks at a big loss in my HSA and IRA accounts. Can I claim the capital losses for these transactions and loss harvest to offset some of my taxable income in any way?

[VolvoGirl]

No.  You will just have less income to pay tax on when you take it out.  Unless it goes back up, of course.  

[Opus 17]

No.  Since the contributions were pre-tax, and you pay income tax on whatever you withdraw, nothing that happens in the account has any meaning for you.  If your investments lose money, you simply have less to withdraw to pay taxes on.