Payoff result.
Use the comparison to decide whether to pay down the loan faster, keep cash flexible, or rerun the numbers with a smaller extra payment.
Change any number to recalculate.
Pay off your loan early with extra payments
Extra payments reduce principal faster, which can shorten the loan and lower total interest. Use the recurring extra-payment field when you want to test a steady monthly plan.
What a lump sum payment saves you
A lump sum can drop the balance immediately. That usually saves more interest than spreading the same dollars over future months, assuming your lender applies it directly to principal.
How long until your loan is paid off?
The result panel shows baseline payoff, early payoff, time saved, interest saved, and total early interest so you can compare the debt-free date against the cost.
Loan payoff calculator extra payments
Model a recurring extra principal payment and compare months saved against total interest saved.
Early loan payoff calculator lump sum
Add a one-time lump sum if you are using a bonus, tax refund, sale proceeds, or cash reserve to pay down loan principal.
Time to pay off loan calculator
Estimate how many months are left at the current payment and how that changes when extra money goes toward principal.
Want the app version?
Loan Genius is the Decent4 iOS calculator for loan and mortgage scenarios, saved calculations, amortization, extra payment impact, and private planning.
Early loan payoff FAQ.
How much does paying extra on a loan actually save?
Every extra dollar goes straight to principal, which shrinks the balance interest is charged on. Even $50/month extra on a typical car loan usually cuts months off the term. Run your numbers above to see the exact date and interest saved.
Is it better to pay a lump sum or add extra monthly payments?
A lump sum today saves more interest than the same total spread over months, because principal drops immediately. The calculator shows both side by side.
Does paying off a loan early hurt your credit?
It can trim your score a few points temporarily by closing an active account, but the interest savings almost always outweigh it. Check whether your loan has a prepayment penalty first.
Does this work for car loans, personal loans, and mortgages?
The math works for fixed-rate amortizing loans. For mortgages, verify escrow, recast options, payoff quotes, and prepayment rules. For credit cards or variable-rate debt, use a debt-specific calculator.