NIH T32 Grant income that is meant to be estimated

Hello, my wife is compensated as a post-doctoral candidate through an NIH T32 grant.  We do NOT receive any document for this income, which is 56,750 for 2023.  No 1099, nothing.  The university website claims we should be estimating taxes to pay on this 56k.  However, we've already submitted our 2023 return, and we HAVE NOT paid any estimated tax for 2023.  We cannot, for the life of us, find where to input this money so that it is not taxed as 1099-MISC self-employment income.  I also would love any insights on how best to pay estimated tax on only a portion of income, the grant money, as opposed to our full income. 

 

Summary:

  • Where do you input taxable grant income on TurboTax so that it is not calculated as unearned income for self-employment tax?
  • What tax rate should be used to estimate taxes on grant income when it is just a part of overall marital income?