Deducting mortgage interest, as well as interest on home equity loans and HELOCs, can save money on taxes.

Deducting mortgage interest is a great tax benefit that can make homeownership more affordable. Your first mortgage isn’t the only loan that qualifies, either. In many cases, you can also deduct interest on home equity loans, second mortgages, and home equity lines of credit, or HELOCs.

If you want to deduct all of your mortgage interest, there are limits on both how much money you can borrow and on what you do with the money you get. You also need to itemize your return to reap the benefits of these deductions. Calculations can be complicated, so consult a tax adviser.