IRA Deduction for Self-Employed Daughter Doesn't Seem to be Working or Calculating Correctly

Hello!  My daughter took a year off from college last year and became "self-employed" as a nanny/caregiver.  She earned $7,083 ("self-employed") without any taxes withheld, along with $813 in W-2 income from a part-time job as she went back to school last Fall.  She also has $151 in dividends from a UTMA.   Currently, TurboTax Premier shows that she owes $1,014 to the Feds and $145 to Oregon State tax.  In trying to reduce her tax liability, we've want to open an IRA and contribute to it.  When I enter a $2,000 contribution for '21, the Fed tax of $1,014 remains unchanged, while the contribution does reduce her State tax liability.  It seems to me they should both be lowered (both Fed and State).  Could this possibly be a glitch or bug in the software?  I would appreciate any insights anyone can share.  Thank you!