How does the loan payoff calculator work?

Enter balance, rate, and monthly payment. The Loan Payoff Calculator simulates each month until the balance reaches zero and reports months to payoff, total interest, and payoff date.

What if my payment does not cover interest?

Negative amortization occurs when the payment is below monthly interest. The balance would grow — increase your payment or verify the rate. The tool caps iterations at 50 years.

What is “Pay off within time”?

Instead of typing your payment, set a target term in years and months. The calculator computes the fixed monthly payment needed to retire the balance in that period at your interest rate.

What does annual repayment increase do?

Each year your payment rises by the percentage you enter — useful for modeling salary growth or planned step-ups. The schedule and chart reflect the higher payments in later years.

How should I read the payment increase comparison table?

It shows payoff time, total interest, and interest saved versus your base payment if you pay 10%, 20%, or 30% more each month — a quick way to see the value of extra principal payments.

Where can I get the monthly payment for a new loan?

Use the Loan Calculator for payment amount and totals. For a full amortization table with recurring extras, try the Amortization Calculator.

Loan Payoff Calculator – shoutingnow.com

Calculation Results

Loan paid off in

—

Total interest

—

Loan payoff date

—

Balance to repay

—

With an increase in your monthly payment, your interest and payoff date could look like this:

Increase	Monthly payment	Total interest	Interest saving	Payoff date

Repayment chart

Repayments by month

Month	Payments	Interest	Principal	Balance

Note: This calculator is for illustrative purposes only and does not constitute financial advice.

How to use this loan payoff calculator

Enter your current loan balance and annual interest rate.
Choose Pay regular amount and type your monthly payment, or choose Pay off within time and set a target term — the tool computes the required payment.
Set your next payment date for an estimated payoff month.
Optional: add an annual repayment increase % to model rising payments each year.
Click Calculate — payoff time, interest, comparison table, chart, and schedule appear on the right.

Need the standard monthly payment for a new loan? Use the Loan Calculator. For revolving credit card balances, see the Credit Card Payment Calculator. For a full amortization table with extra payments, see the Amortization Calculator.

How loan payoff time is calculated

Each month, interest accrues on the remaining balance at the monthly rate (annual rate ÷ 12). Your payment covers interest first; the remainder reduces principal. The calculator iterates month by month until the balance reaches zero or 50 years — whichever comes first.

Worked example

$100 balance at 12% annual interest with $12 monthly payments:

Payoff time ≈ 9 months
Total interest ≈ $4.95
Total repaid ≈ $104.95

The comparison table shows how a 10%, 20%, or 30% higher monthly payment reduces interest and moves the payoff date earlier.

When payment is too low

If your monthly payment does not cover the first month’s interest, the balance grows and the loan will not amortize. Increase the payment amount or check the rate.

Examples and use cases

Real-world use cases

Student loan exit: A graduate with $18,000 at 5.5% checks how long standard $200 payments take vs adding $75 extra.
Personal line of credit: Someone models paying off a $3,200 balance in 12 months to set a realistic monthly target.
Early payoff goal: A borrower uses the comparison table to see payoff date if they raise payments by 20% after a raise.

For investment growth projections, try the Compound Interest Calculator.