Unexpected Increase in Capital Loss Used After Adding 1099-B

 

Background:

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  • I had a $7,990 capital loss carryover from last year.
  • I understand I can deduct up to $3,000 of this carryover to reduce my taxable income in 2023.
  • Before adding my Betterment 1099-B, my tax software showed the expected $3,000 deduction in "All Capital Losses Used in 2023" row.

Issue:

  • After importing my 1099-B, the "All Capital Losses Used in 2023" amount jumped to $3,109.
  • My Betterment statement only shows a $105 gain, so I'm confused where the extra loss came from.

Questions:

  • How could my 1099-B cause this change if it doesn't show any losses?
  • Can more than $3,000 in capital loss be used in a single year?
  • Could you please explain how this calculation works?
  • What should I look for in my Betterment 1099 B to understand this calculation?

Thank you for any insights!