How much of your mortgage payment is tax deductible?

In the United States, the interest portion of your mortgage payment is generally tax deductible if you itemize your deductions. For mortgages up to $750,000 (or $1 million for mortgages taken out before December 15, 2017), you can deduct the interest you pay. However, the principal portion of your mortgage payment is not tax deductible. It’s important to consult a tax professional for specific advice tailored to your situation.