Why extra payments are so powerful
Every extra dollar you pay goes 100% toward principal. Because interest is calculated on the remaining balance, reducing principal early means every future month has a smaller interest charge. This compounding effect means even modest extra payments can save tens of thousands over the life of a loan.
Strategies for paying off your mortgage early
Extra monthly payments: Add a fixed amount each month. Even $100–$200/month adds up significantly over time.
Bi-weekly payments: Pay half your monthly payment every two weeks. This naturally results in 13 full payments per year instead of 12 — one extra payment annually at no extra effort.
Annual lump sum: Put windfalls (tax refunds, bonuses) directly toward principal once a year.
Should you pay extra or invest instead?
If your mortgage rate is below your expected investment return, investing wins mathematically. But paying down your mortgage offers a guaranteed, risk-free return equal to your interest rate. Many homeowners split the difference — especially once higher-rate debt is paid off. Use our investment calculator to compare both scenarios.
A real example
Say you have a $300,000 mortgage at 6.9% on a 30-year term. Your baseline payment is roughly $1,975/month, and over the full term you'd pay about $411,000 in interest — nearly one and a half times what you borrowed. Add just $200/month extra and the math shifts significantly: you cut roughly 6–7 years off the loan and save somewhere in the ballpark of $80,000–$90,000 in interest, depending on when the extra payments start. Small, consistent extra payments compound the same way investment returns do — just in reverse, working against your debt instead of for your portfolio.
When extra payments make less sense
Paying down a mortgage early isn't automatically the right move for everyone. It's usually smarter to hold off if: you don't have 3–6 months of expenses saved in an emergency fund; you're carrying higher-interest debt like credit cards (typically 18–25% APR, far above most mortgage rates); your loan has a prepayment penalty (rare today, but worth checking your documents); or you're not yet contributing enough to get a full employer 401(k) match, which is essentially free money. Extra mortgage payments are a great use of leftover cash once those boxes are checked — not necessarily before.