Mortgage Payoff

How Mortgage Payoff Works

Interest Saved = Standard Total Interest − Accelerated Total Interest

P&I

Principal & Interest — The portion of your payment that goes to the loan principal and interest — excluding property taxes (T) and homeowners insurance (I) in a full PITI payment. Use only the P&I amount when entering your current monthly payment.

Payoff Date

Debt-Free Date — The specific month and year when your final mortgage payment is made and the balance reaches zero. This is a real date, not just a number of months remaining.

PITI

Principal, Interest, Taxes, Insurance — The full monthly housing payment including all four components. Only the principal and interest portion is applied to the loan balance; taxes and insurance go into an escrow account.

How to Use

1. Enter your original mortgage amount and current remaining balance to establish where you started and where you are today.
2. Enter your interest rate and current monthly P&I (principal and interest only, not including taxes and insurance).
3. Add extra monthly payments, annual lump sums (like a tax refund), or a single one-time payment made today.
4. The calculator shows your new debt-free date as a real calendar month and year, total time saved, and total interest saved.

Common Uses

• •Calculate how much time and interest you can save by adding extra principal payments to your monthly mortgage.
• •Compare the impact of a one-time lump-sum payment versus recurring extra monthly payments on your payoff timeline.
• •Determine the exact month and year you will become mortgage-free under different accelerated payment strategies.

Understanding the Result

Frequently Asked Questions

Should I make extra monthly payments or a large annual lump sum?

Extra monthly payments are slightly more effective than an equivalent annual lump sum because they reduce the principal earlier in the year, preventing interest from accruing on that amount month by month. However, the difference is relatively small. The most important thing is to choose a strategy you can commit to consistently — whether that is sending a little extra each month or making a larger payment annually with your tax refund or bonus.

Do I need to tell my lender the extra payment is for principal?

Yes, absolutely. You must explicitly instruct your lender to apply extra payments to the principal balance. Some servicers will automatically apply overpayments to future scheduled payments instead of reducing principal unless you specify otherwise. Confirm with your loan servicer how to designate extra payments as "principal only" and check your monthly statement to ensure it was applied correctly.

Is it better to pay off the mortgage or invest?

If your mortgage rate is 6.75%, paying it off gives a guaranteed, risk-free 6.75% after-tax return. If you expect your investments to return 8% or more, investing may yield more on paper, but it comes with market risk. The mortgage payoff is guaranteed and also improves cash flow. Many financial advisors recommend a hybrid approach: max out tax-advantaged accounts like 401(k) and IRA first (capturing any employer match), then direct extra cash toward mortgage payoff.

What happens if I make one large lump-sum payment?

A single lump-sum payment immediately reduces your principal balance, which means less interest accrues on every future payment from that point forward. For example, a $10,000 lump-sum payment on a $280,000 mortgage at 6.75% saves approximately $675 in interest in the first year alone and continues saving more each year until the loan is paid off. The calculator lets you model this with the "Single One-Time Lump Sum" field.

Sources

• Consumer Financial Protection Bureau
• Investopedia