The IRS and Treasury released new Opportunity Zone guidance in 2026, potentially opening new tax savings and investment opportunities for investors, developers, and businesses.

The second-home mortgage interest deduction lets homeowners deduct interest on up to $750,000 of mortgage debt, even for vacation properties. But now lawmakers are debating whether to change or repeal it. Learn what this tax break means, why it’s under fire, and how potential changes could affect homeowners and the housing market.