Mortgage Payoff Calculator 2026

As of June 2026, the average 30-year fixed mortgage rate is approximately 6.60% (Bankrate national survey). The 15-year fixed rate averages around 5.80%. Rates have been elevated due to Middle East geopolitical pressures driving inflation. Most housing economists expect rates to remain in the 6–6.5% range through 2026.

On a $400,000 mortgage at 6.6% over 30 years, an extra $200/month saves approximately $88,000 in interest and pays off the loan about 5 years and 3 months early. Larger extra payments produce proportionally greater savings — even $100/month makes a meaningful difference over the life of the loan.

Not always. With rates at 6.6%, the opportunity cost matters. If you can reliably earn more than 6.6% in the stock market (historically likely over 10+ years), investing might beat prepaying. However, mortgage prepayment is risk-free and guaranteed, while market returns are not. Most financial planners recommend: (1) always max employer 401k match, (2) clear high-interest debt (>8%), (3) then split extra cash between investments and mortgage prepayment.

Instead of one monthly payment, you pay half the monthly amount every two weeks. Because there are 52 weeks in a year, this results in 26 half-payments = 13 full monthly payments — effectively one extra payment per year. This alone typically cuts 4–6 years off a 30-year mortgage and saves tens of thousands in interest without feeling like a large sacrifice.

Most US conventional mortgages (Fannie Mae/Freddie Mac backed) do not have prepayment penalties. However, some private mortgages, jumbo loans, or loans originated before 2014 may have prepayment clauses. Always check your mortgage note or call your servicer before making a large lump-sum payment to confirm there is no penalty.

Always specify that extra payments should be applied to the principal, not future payments. Contact your servicer or include a note with your payment — some servicers automatically apply extra payments to future installments instead, which does not reduce your interest. Confirm on your next statement that the principal balance decreased by the full extra amount.