I am a cosigner on student loan and made all payments in 2023.1098-E is in parent's name,they r not claiming me as dependent on their taxes,can I take the int deduction?

I am assuming you are the person the loan was taken out for your education and your parents or someone else cosigned for you?

Yes, you can claim the 1098-E on your return as long as you are legally liable to make the payments and you make the payments.

To enter your Student Loan interest select the following:

• Deductions and Credits
• Show more next to Education
• Student Loan Interest Paid (Form 1098-E)
• Then enter your student loan interest paid

Student loan interest will lower your taxable income and is a deduction you can take even when you choose to take the standard deduction. 

Student Loan Interest Deduction

Yes, you can take the interest deduction since you are liable for the loan and they are not claiming you as a dependent.