How the early payoff calculator works
Enter your current balance, interest rate, remaining term, and the extra amount you can pay each month. The calculator compares two timelines: your normal payoff and the accelerated one with extra payments. It shows the new payoff date, total interest in each case, and exactly how much interest and time the extra payments save you.
Worked example: a $20,000 loan with $100 extra a month
Take a $20,000 loan at 8% APR with 60 months remaining. Adding just $100 extra each month saves $1,036 in total interest and finishes the loan about 13 months sooner. That is over a year of payments eliminated from a modest extra payment — proof that small, consistent additions compound into big savings.
Early payoff pitfalls to watch out for
Some lenders charge prepayment penalties — confirm yours does not before sending extra payments. Also verify extra amounts are applied to principal, not just credited as an early next payment. And never drain your emergency fund to chase payoff: keep 3–6 months of expenses saved first. Estimates only, not financial advice.
Which loan should you pay off first
If you have several debts, target the highest interest rate first — that saves the most money overall. Some people prefer the smallest balance first for a quick motivational win. Run each loan through the calculator to compare, and pick the approach you will actually stick with.
Frequently asked questions
Will making extra payments hurt my credit score?
No — extra principal payments do not hurt your score. They lower your balance faster, which can reduce your credit utilization on revolving accounts and help over time. Just confirm your lender applies overpayments to principal. Always keep payments on time; that history matters most for your score.
Is it better to pay off debt early or invest the extra money?
It depends on the numbers. Paying down a high-rate loan is like earning a guaranteed return equal to that rate — often better than uncertain market gains. For low-rate debt, investing may win over the long run. Compare your loan's rate with realistic investment returns, and weigh your comfort with debt before deciding.
How do I make sure extra payments go toward principal?
Contact your loan servicer and ask how they process overpayments — some need written instructions or a specific selection online. State clearly that the extra should reduce principal, not prepay future installments. Then check your next statement to verify the principal dropped by the expected amount.
Are there penalties for paying off a loan early?
Sometimes. Some auto and personal loans include prepayment penalties, especially in the first year or two. Mortgages rarely have them on newer loans. Read your loan agreement or call your servicer before accelerating payments — a penalty could erase much of the interest you hoped to save.