Paying extra on your mortgage principal can significantly reduce the total interest paid and shorten the loan term. Making consistent extra payments, especially in the early years, can save tens of thousands of dollars. For example, adding $100 monthly can save $32,000 in interest and pay off a 30-year loan five years early. Additionally, using tax refunds or bonuses for extra payments can further enhance savings. It's crucial to ensure extra payments are applied correctly to the principal and to maintain an emergency fund alongside these payments.

