The fastest way to pay off a mortgage isn’t a secret formula. It’s sending more money to principal, consistently, over a long time. One extra payment a year is one of the easiest strategies because it doesn’t require a big lifestyle change. If you make one extra full mortgage payment every year and tell your lender to apply it to principal, you can shave years off a 30-year loan and save a serious amount of interest. The key is to make it automatic and boring.
How it works. On a 30-year fixed mortgage, your monthly payment is built around 360 payments. Add a 13th payment each year, and you’re effectively making 13 payments instead of 12. That extra payment goes straight to principal, not interest. Because mortgage interest is calculated on your remaining balance, any extra principal lowers the balance immediately. The next month, interest is charged on a smaller number. That small change compounds over years.
You don’t need to write a separate check. Divide one monthly payment by 12. Add that amount to every monthly payment. If your principal and interest is $1,800, that’s $150 extra per month. At the end of 12 months, you’ve paid one full extra payment. Many servicers let you set this up online as recurring extra principal. If they don’t, send the extra with a clear note: “Apply to principal.“ Check your statement every month to confirm it happened. Lenders can make mistakes, and extra money can sit in a suspense account if instructions are unclear.
Watch out for prepayment penalties. Most modern mortgages don’t have them, but some do. Read your loan documents or call your servicer. Also ask whether your lender charges a fee for biweekly payment programs. Some third-party companies charge setup or transaction fees to do something you can do yourself for free. You don’t need a fancy program. You need a reliable automatic transfer.
Biweekly payments can mimic this strategy. Pay half your monthly payment every two weeks. Since there are 26 biweekly periods in a year, you make 26 half payments, which equals 13 full payments. But be careful. If your servicer holds half payments until the full monthly amount arrives, you may not get the benefit. And if your payment includes taxes and insurance, splitting it can confuse escrow. A simpler route is to keep your normal monthly payment and add extra principal. That keeps escrow clean. If your lender won’t accept partial payments, don’t fight it. Just add extra principal to your regular monthly payment and let the servicer process one clean transaction.
Make the extra payment fit your long-term plan. Before rushing to prepay, build an emergency fund. Pay off credit cards and other high-interest debt. Get your full employer retirement match. Those steps usually beat the guaranteed return from mortgage prepayment. Once those are handled, extra mortgage payments are a solid, low-risk way to improve your net worth. The return is your interest rate. If you have a 6% mortgage, paying it down early is like earning 6% risk-free. That’s hard to beat in a savings account.
Use windfalls wisely. A tax refund, work bonus, or inheritance can become a principal payment. You don’t have to wait for the perfect amount. Even $500 or $1,000 makes a dent. Call your servicer and confirm how to send a one-time principal payment. Then check your next statement. If you can’t afford a full extra payment every year, start with $50 a month. Increase it when you get a raise.
Keep it going. A long-term paydown plan works only if it survives real life. Set the extra payment for the day after payday. Revisit it once a year. If money gets tight, pause it rather than missing your regular payment. If you get a raise, raise the extra amount. The goal isn’t heroics. It’s consistency. One extra payment a year, applied to principal, can quietly turn a 30-year mortgage into a 25-year mortgage. That’s five years of no mortgage payment, more freedom, and less interest to the bank. That’s a win worth automating. Review your loan schedule once or twice a year. Seeing the balance drop faster is motivating, and it helps you adjust if your budget changes.
