Can I deduct interest on student loans I paid for my adult children?

Did you co-sign?   If you are legally obligated on the loan you can deduct the interest you paid.  If you did not co-sign, sorry, you cannot use the interest.

Mabye, if you are a co-signer on the loan.  if you are legal obligated to pay the loan and otherwise qualify you may be able to deduct the interest, but there are income limits.

For 2024, if you file Married Filing Jointly:

• You can deduct up to $2,500  of student loan interest if your modified adjusted gross income (AGI) is $165,000 or less.
• Your student loan deduction reduced if your modified AGI is more than $165,000 and less than $195,000.
• You deduction is completely phased out when your modified AGI is $195,000 or more.

For 2024 if you file Single, Head of Household, or Qualified Surviving Spouse:

• You can deduct up to $2,500 of student loan interest if your modified AGI is $80,000 or less.
• Your deduction is reduced if your modified AGI is between $80,000 and $95,000.
• You deduction is completely phased out when your modified AGI is $95,000 or more.