I forgot to enter my Charles Schwab information. I had a loss of $326. Do I still need to report.

[waliach]

Do I have to report my Charles Schwab even if it's in red figures?

[Mike9241]

If that loss is from the sale of securities, you should probably amend. The IRS records will show that you had sales proceeds that weren't reported on your return for which they will likely send you a notice asking for schedule D or even a full amended return. Not reporting it means you'll lose out on any tax benefit that loss produces.