The limit is based on the home value, not the actual interest paid: https://turbotax.intuit.com/tax-tips/home-ownership/deducting-mortgage-interest-faqs/L4a9KF9

The limit is based on the home value, not the actual interest paid: https://turbotax.intuit.com/tax-tips/home-ownership/deducting-mortgage-interest-faqs/L4a9KF9mI#limitamount https://turbotax.intuit.com/tax-tips/home-ownership/deductin... You might want to check that you didn't accidentally enter all of your deductions as if they were SALT payments.