Paying off a mortgage early can save a meaningful amount of interest, but the result depends on your remaining loan balance, interest rate, remaining loan term and how much extra you put toward the mortgage.
A small additional payment each month may not seem dramatic at first. Over many years, however, those extra payments can reduce your mortgage balance faster and potentially shorten the life of the loan.
This free Mortgage Payoff Calculator helps you estimate how long it may take to pay off your remaining mortgage and how much interest you could potentially save by making extra monthly payments.
Enter your current mortgage balance, interest rate, remaining loan term and planned extra payment. The calculator compares your regular repayment schedule with an accelerated payoff scenario.
This calculator was created by Revisiting Tools as an educational planning tool. It is designed to help you understand how additional mortgage payments can affect your estimated payoff timeline and total interest.
The results are estimates based on the information you enter. Your actual mortgage payoff amount, interest savings and payoff date can differ because of your lender's terms, payment timing, escrow, fees, interest calculation methods and other factors.
Mortgage Payoff Calculator
Enter your current mortgage details and see how extra monthly payments could affect your estimated payoff time and total interest.
Current Mortgage
Remaining Loan Term
Enter the approximate amount of time left on your mortgage. For example, 25 years and 0 months means approximately 300 monthly payments remain.
Extra Mortgage Payment
Enter the additional amount you plan to pay toward your mortgage each month. Enter $0 if you want to see your regular estimated payoff schedule.
Enter your mortgage information and select Calculate Mortgage Payoff.
This calculator provides estimates for educational purposes. Actual mortgage payoff results may differ because of lender policies, payment timing, interest calculation methods, fees, escrow and other loan terms.
What Does It Mean to Pay Off a Mortgage Early?
Paying off a mortgage early means reducing the remaining loan balance faster than required by the original repayment schedule.
One common way to do this is by making an additional payment toward principal each month. Because the mortgage balance decreases faster, future interest charges may also decrease.
Some homeowners choose to make occasional lump-sum payments instead, while others add a fixed amount to every monthly mortgage payment.
How Does the Mortgage Payoff Calculator Work?
The calculator starts with your current mortgage balance, interest rate and remaining repayment period. It estimates the monthly principal-and- interest payment required to repay the mortgage over that remaining term.
It then adds the extra monthly amount you entered and estimates how many months it could take to bring the mortgage balance to zero.
The calculator compares the regular schedule with the accelerated schedule so you can see the estimated difference in payoff time and interest.
What Is Your Regular Mortgage Payment?
Your regular mortgage payment depends on the remaining loan balance, interest rate and number of payments left.
For a standard fixed-rate mortgage, the principal-and-interest payment can be estimated using the standard mortgage amortization formula.
This calculator focuses on the principal-and-interest portion of the mortgage payment when calculating the payoff schedule. Property taxes, homeowners insurance, HOA fees and other housing expenses are not used to determine the mortgage payoff timeline.
How Do Extra Mortgage Payments Help?
An extra payment directed toward mortgage principal reduces the amount you owe. A smaller balance generally means less interest is charged in future periods.
For example, suppose your normal mortgage payment is $2,000 and you decide to pay an additional $300 each month. Your total principal-and- interest payment would be approximately $2,300 under that assumption.
The exact savings depend on your current balance, interest rate and remaining term.
The earlier you reduce your mortgage principal, the more future interest you may avoid. The effect can become more noticeable when extra payments are maintained over many years.
How Much Interest Can You Save?
Mortgage interest is calculated based on the outstanding loan balance and the applicable interest rate. When additional principal payments reduce the balance faster, less interest may be charged over the remaining life of the loan.
The amount of interest saved depends on the starting balance, interest rate, remaining term and size of the extra payment.
A larger extra payment can potentially shorten the loan more quickly, but the best amount depends on your personal budget and other financial priorities.
How Many Months Can You Save?
The mortgage payoff period is normally measured in monthly payments. Making extra payments can reduce the number of payments required to repay the remaining balance.
For example, if your original schedule has 300 payments remaining and your extra payments reduce the estimated schedule to 250 payments, you would save approximately 50 months.
The calculator displays this difference so you can see the potential effect of your additional monthly payment.
Example of Paying Off a Mortgage Early
Imagine that you currently owe $300,000 on your mortgage and have approximately 25 years remaining at a 6.5% interest rate.
Now suppose you decide to pay an additional $300 toward the mortgage each month.
Enter those numbers into the calculator and compare the regular schedule with the accelerated schedule.
The calculator will estimate your regular principal-and-interest payment, accelerated payoff time, estimated months saved and potential interest savings.
This example is only an illustration. Your actual results will depend on the terms and conditions of your mortgage.
What Happens If You Increase the Extra Payment?
You can use the calculator to test different extra-payment amounts. Instead of entering $300, try $500, $750 or $1,000 and compare the results.
Increasing the extra payment generally causes the mortgage balance to fall faster. However, that does not automatically mean that making the largest possible payment is the right choice for every homeowner.
You may also want to consider emergency savings, high-interest debt, retirement contributions, upcoming expenses and other financial goals.
What About a Lump-Sum Mortgage Payment?
Some homeowners receive money from a bonus, tax refund, inheritance, sale of an asset or another source and consider using part of it to reduce their mortgage balance.
A lump-sum payment can reduce the principal balance, but this calculator is designed around a recurring extra monthly payment rather than a one-time lump-sum payment.
If you are considering a large additional payment, check with your lender to understand how the payment will be applied and whether your mortgage has any applicable prepayment rules or charges.
Why Is Mortgage Principal Important?
Principal is the amount you still owe on the mortgage. Every principal payment reduces the outstanding loan balance.
At the beginning of a long mortgage, the balance can be relatively large. As payments continue, more of the balance is gradually paid down.
Extra principal payments can speed up this process because they reduce the balance beyond what the regular repayment schedule requires.
How Does the Interest Rate Affect Early Payoff?
The interest rate determines how much interest is charged on the outstanding mortgage balance.
A higher interest rate generally means a greater interest cost when other assumptions remain the same. This can also make additional principal payments more valuable because reducing the balance can reduce the amount on which future interest is calculated.
Try entering different interest rates into the calculator to see how the estimated payment and payoff results change.
Does the Remaining Loan Term Matter?
Yes. The number of payments remaining can have a significant effect on the amount of interest you could pay from this point forward.
A mortgage with many years remaining has more future payments and potential interest charges than a mortgage that is already close to being paid off.
This is why the same extra monthly payment can produce different results for two homeowners with different remaining loan terms.
Regular Mortgage vs. Extra Payments
| Factor | Regular Payments | Extra Payments |
|---|---|---|
| Monthly payment | Required payment | Higher |
| Principal reduction | Standard schedule | Generally faster |
| Payoff time | Original schedule | Potentially shorter |
| Total interest | Original estimated interest | Potentially lower |
| Cash flow | More available each month | Less available each month |
Should You Put Extra Money Toward Your Mortgage?
Paying extra toward a mortgage can be attractive because it may reduce future interest and help you become debt-free sooner.
However, mortgage payoff decisions should be considered as part of your broader financial picture.
- Keep an appropriate emergency fund.
- Consider high-interest debt first.
- Review your other savings goals.
- Consider retirement contributions.
- Think about upcoming large expenses.
- Check whether your mortgage has prepayment restrictions.
There is no universal extra-payment amount that is right for every household.
Why Does the Payoff Date Matter?
The payoff date is the point at which the remaining mortgage balance is estimated to reach zero under the assumptions used by the calculator.
Making additional payments can potentially move that date closer, depending on the amount you pay and the remaining balance.
Knowing the estimated payoff period can make it easier to compare different repayment strategies.
Understanding the Amortization Schedule
An amortization schedule breaks the mortgage into individual payments and shows how the balance changes over time.
Each payment is divided between interest and principal. The interest amount is based on the outstanding balance and interest rate, while the remaining amount goes toward principal.
The calculator provides a year-by-year estimate so you can see how principal payments, interest and the remaining balance change over the repayment period.
How to Use the Calculator for Different Scenarios
The easiest way to understand your options is to test more than one scenario.
- Calculate your regular mortgage payoff schedule.
- Add a small monthly extra payment.
- Try a larger extra payment.
- Compare different interest-rate assumptions.
- Compare different remaining loan terms.
- See how many months could potentially be saved.
- Compare estimated interest costs.
Testing several possibilities can help you understand the relationship between monthly cash flow, payoff time and interest cost.
What Does This Mortgage Payoff Calculator Include?
- Current mortgage balance
- Interest rate
- Remaining loan years
- Remaining additional months
- Extra monthly mortgage payment
- Estimated regular monthly principal-and-interest payment
- Estimated accelerated monthly payment
- Estimated regular payoff time
- Estimated accelerated payoff time
- Estimated months saved
- Estimated regular interest
- Estimated accelerated interest
- Estimated interest savings
- Year-by-year amortization information
What This Calculator Does Not Include
This calculator is designed to estimate mortgage principal-and-interest payoff results. It does not attempt to model every possible cost or feature associated with a mortgage.
- Property taxes
- Homeowners insurance
- HOA fees
- Utilities
- Home maintenance
- Repair costs
- Mortgage origination fees
- Discount points
- Closing costs
- Escrow adjustments
- Loan-specific prepayment rules
- Future changes in interest rates for adjustable loans
Your lender's official payoff statement should be used when you need the exact amount required to pay off your mortgage on a specific date.
If you are preparing to completely pay off your mortgage, contact your lender or mortgage servicer for an official payoff statement. The actual payoff amount may include accrued interest, fees or other amounts that are not represented by a simple calculator estimate.
Mortgage Payoff vs. Other Housing Decisions
Paying off a mortgage early is only one part of a larger homeownership decision. If you are still deciding whether buying a home makes sense, you may want to compare the broader financial picture of renting and owning.
You can also use our Rent vs. Buy Calculator to compare renting and buying under different assumptions.
Compare Your Mortgage Payment
If you want to estimate the monthly cost of a mortgage before focusing on early payoff, our Mortgage Payment Calculator can help you estimate principal, interest, property taxes, insurance, PMI and HOA costs.
How Much Home Can You Afford?
If you are planning to purchase a home rather than paying off an existing mortgage, you may also want to estimate a reasonable home price based on your income and monthly expenses.
Try our Home Affordability Calculator to explore different home-price scenarios.
Frequently Asked Questions
Here are some common questions about paying off a mortgage early and making additional principal payments.
How does a mortgage payoff calculator work?
It uses your current mortgage balance, interest rate and remaining loan term to estimate your regular payment schedule. It then applies the extra monthly payment you enter to estimate how quickly the balance could be paid off.
Does paying extra on my mortgage reduce interest?
An additional payment applied to principal can reduce the outstanding balance. A lower balance can reduce future interest charges, although the exact savings depend on your loan terms and payment history.
How much extra should I pay toward my mortgage?
There is no single amount that is appropriate for everyone. Consider your emergency savings, other debts, savings goals and monthly cash flow before deciding how much additional money to put toward the mortgage.
Can an extra $100 a month pay off a mortgage faster?
Yes, an additional $100 each month can reduce the principal balance faster than the regular schedule. The exact number of months and interest saved depends on your remaining balance, interest rate and remaining term.
Can I enter zero for the extra payment?
Yes. Entering $0 lets you compare the regular estimated repayment schedule without additional monthly payments.
Does this calculator include property taxes and insurance?
No. The payoff calculation focuses on mortgage principal and interest. Property taxes, homeowners insurance, HOA fees and similar housing costs do not reduce the mortgage balance and therefore are not included in the payoff calculation.
Can I use this calculator for a fixed-rate mortgage?
Yes. The calculator is primarily designed around a fixed interest rate and a standard amortizing mortgage.
Can I use it for an adjustable-rate mortgage?
The calculator can provide a simplified estimate using the interest rate you enter, but it does not predict future rate adjustments. Adjustable-rate mortgages can change over time, so actual results may differ substantially.
Does paying off a mortgage early always save money?
Paying additional principal can reduce future mortgage interest, but whether it is the best use of your money depends on your broader financial situation. Other debts, savings, investments, taxes and liquidity can also matter.
Will my lender automatically apply extra money to principal?
Not necessarily. Lender procedures can vary. If you intend an additional payment to reduce principal, check with your mortgage servicer to understand how extra payments should be submitted and applied.
Does this calculator show the exact mortgage payoff amount?
No. It provides an estimate. An official mortgage payoff statement from your lender or mortgage servicer should be used when you need the exact amount required to close the loan.
Can I pay off my mortgage before the scheduled date?
Many mortgages allow borrowers to make additional principal payments, but loan terms and applicable rules can vary. Check your mortgage documents or contact your lender before making a large payoff payment.
Mortgage Payoff Calculator: The Bottom Line
Paying extra toward your mortgage can potentially shorten your repayment period and reduce the amount of interest you pay over time.
The key numbers are your current balance, interest rate, remaining loan term and the amount of additional money you can comfortably put toward the mortgage.
Use the calculator to test different extra-payment amounts and compare the estimated payoff time and interest savings. A strategy that looks small on a monthly basis can produce a different result when continued for many years.
Remember that the calculator provides estimates. For an exact payoff amount or payoff date, contact your mortgage lender or servicer.