Mortgage Payoff Calculator

Updated for 2026 — see exactly how extra payments cut years off your mortgage and save $100K+ in interest

Payoff Summary

Enter your loan details and extra payments, then click Calculate Payoff.

Monthly Payment $0
Original Interest $0
Interest Saved $0
Original Term
New Payoff
Time Saved

Remaining Balance Over Time

Amortization Schedule (With Extra Payments)

# Month Principal Interest Extra Balance

Disclaimer: This calculator is for informational purposes only and does not constitute financial, legal, or tax advice. The results are estimates based on the information you provide and should not be relied upon as the sole basis for financial decisions. Please consult a qualified professional before making any commitments.

Key Takeaways

  • $200/month extra on a $320K loan saves $86,841 in interest and cuts 7.5 years off your mortgage
  • Biweekly payments = 26 half-payments = 13 full payments/year = one extra payment that saves ~$62,000
  • Prepayment penalties are rare: Only 0.25% of 2024 mortgages had them. FHA, VA, USDA loans never do.
  • Critical step: Always ensure extra payments go to principal — verify after your first extra payment
  • Pay extra vs invest: At 6%+ mortgage rates, paying off provides strong guaranteed returns
  • Recasting option: Pay $10K+ lump sum, lender recalculates lower payment — costs only $150-$500
Table of Contents

Extra Payment Savings at a Glance

Want to see your options without running numbers? Here's exactly what different extra payment amounts save you:

Based on $320,000 Loan at 6.22% (30-Year)

Average U.S. mortgage balance is $258,214. We're using $320,000 as a round number that reflects typical new originations. Standard monthly payment: $1,965 (principal + interest).

Monthly Extra Payments

Extra Monthly Interest Saved Time Saved New Payoff
$50$26,8472.3 years27.7 years
$100$49,2844.3 years25.7 years
$200$86,8417.5 years22.5 years
$300$115,6929.8 years20.2 years
$500$155,84713.3 years16.7 years
$1,000$210,51318.2 years11.8 years

Annual Lump Sum Payments

Annual Payment Interest Saved Time Saved New Payoff
$1,000/year$34,5213.1 years26.9 years
$2,000/year$60,8475.5 years24.5 years
$3,000/year$82,1567.2 years22.8 years
$5,000/year$115,2849.7 years20.3 years
$10,000/year$167,89214.1 years15.9 years

Pro Tip: Tax Refund Strategy

The average U.S. tax refund is around $3,000. Applying it to your mortgage annually saves $82,156 in interest and cuts 7+ years off your loan. One simple decision each April that pays massive dividends.

Why Extra Payments Are So Powerful

Here's something most homeowners don't realize:

In the first years of a 30-year mortgage, about 75-80% of your payment goes to interest—not principal.

Example: $320,000 Loan at 6.22%

Monthly payment: $1,965

Month 1 breakdown:

  • Interest: $1,659 (84%)
  • Principal: $306 (16%)

Of your nearly $2,000 payment, only $306 actually reduces your loan balance.

But here's where it gets good:

When you make an extra payment, 100% goes to principal. None of it goes to interest. That $200 extra payment eliminates $200 from your loan balance immediately—plus all the interest that $200 would have generated over the remaining life of the loan.

The Compound Effect

A single $200 extra payment in month 1 of a 30-year loan doesn't just save you $200. It saves you approximately $460 in total because you're also eliminating 30 years of interest that $200 would have accumulated.

5 Proven Strategies to Pay Off Your Mortgage Faster

There are five main approaches to accelerating your mortgage payoff. Each works—the best one depends on your cash flow and financial situation.

Strategy #1: Extra Monthly Payments

How it works: Add a fixed amount to your monthly mortgage payment.

Best for: People with steady extra income who want a "set it and forget it" approach.

Example: $200/Month Extra

$320,000 loan at 6.22%:

  • Original payoff: 30 years
  • New payoff: 22.5 years
  • Interest saved: $86,841

Strategy #2: Biweekly Payments

How it works: Pay half your monthly payment every two weeks instead of the full amount monthly.

Best for: People paid biweekly who want payments aligned with paychecks.

See the Biweekly Payments Explained section for full details.

Strategy #3: Annual Lump Sum Payments

How it works: Make one large extra payment each year.

Best for: People who receive annual bonuses, tax refunds, or irregular income.

Strategy #4: Mortgage Recasting

How it works: Make a large lump sum payment, then have your lender recalculate your monthly payment based on the new, lower balance.

Best for: People who receive a windfall and want lower monthly payments AND interest savings.

See the Mortgage Recasting section for full details.

Strategy #5: The Combination Approach

How it works: Use multiple strategies together—monthly extra payments + annual lump sums + one-time payments when possible.

Best for: Maximizing savings while maintaining flexibility.

Example: Combination Strategy

$320,000 loan at 6.22% with:

  • $200/month extra
  • $3,000 annual payment
  • $10,000 one-time payment

Result:

  • Original payoff: 30 years
  • New payoff: 16.8 years
  • Interest saved: $183,000+

Biweekly Payments: The Complete Guide

Biweekly payments are one of the most popular acceleration strategies—but also the most misunderstood.

How Biweekly Actually Works

Monthly: 12 payments/year
Twice monthly: 24 payments/year (same as monthly)
Biweekly (every 2 weeks): 26 payments/year = 13 full monthly payments

Since there are 52 weeks in a year, paying every 2 weeks means 26 half-payments. That's equivalent to 13 monthly payments instead of 12. That one extra payment goes entirely to principal.

Watch Out for These Biweekly Traps

  • Third-party services: Companies charge $300-500 to "set up" biweekly payments. You don't need them.
  • Payment holding: Some servicers hold your biweekly payment until month-end, eliminating any benefit.
  • Hidden fees: Some programs charge per-payment fees that eat into your savings.

Mortgage Recasting: The Hidden Option

Most homeowners have never heard of recasting—but it can be a powerful tool if you receive a windfall.

What Is Mortgage Recasting?

Recasting is when you make a large lump sum payment toward principal (typically $5,000-$10,000 minimum), and your lender recalculates your monthly payment based on the lower balance. Your interest rate and loan term stay the same—only your payment drops.

Recasting vs. Refinancing

FactorRecastingRefinancing
Cost$150-$500 flat fee2-6% of loan ($6,400-$19,200 on $320K)
Credit checkNoYes
AppraisalNoUsually yes
TimelineDays to weeks30-45 days
Interest rateStays the sameChanges to current rate

Loans That Can NOT Be Recast

  • FHA loans
  • VA loans
  • USDA loans
  • Some jumbo loans (varies by lender)

Should You Pay Off Your Mortgage or Invest?

Here's where I need to be straight with you:

Paying off your mortgage early isn't always the best financial decision. Sometimes it is. Sometimes it isn't. The math depends on your specific situation.

Key Context

  • S&P 500 historical return: ~10% annually (1965-2024)
  • But in any single year: Returns have ranged from +37.6% to -37%
  • 62% of homeowners have mortgage rates below 4%
  • Tax consideration: Investment gains are taxed; mortgage payoff "return" is not

The "Both" Approach

You don't have to choose one or the other. Many financial experts recommend: max out employer 401(k) match first (that's 50-100% instant return), then split remaining funds between extra mortgage payments and investments.

The Critical Step 90% of Homeowners Miss

Here's where most people mess up their extra payment strategy:

They don't ensure extra payments actually go to principal.

Without explicit instructions, many servicers apply extra payments to:

  • Next month's regular payment
  • Escrow accounts (taxes and insurance)
  • Fees or accrued interest

This completely defeats the purpose.

Your Extra Payment Might Not Be Working

If your extra payment goes toward next month's payment instead of principal, you get zero interest savings. You've just pre-paid your mortgage—not paid it down.

Should You Pay Off Your Mortgage Early? The Complete Decision Framework

YES — Accelerate Your Mortgage If:

  • Your mortgage rate is above 5-6%
  • You've paid off all higher-interest debt (credit cards, personal loans)
  • You have a 3-6 month emergency fund
  • You're capturing your full employer 401(k) match
  • You're approaching retirement and want lower fixed expenses
  • The peace of mind of being debt-free matters to you

MAYBE NOT — Consider Alternatives If:

  • Your mortgage rate is below 4% (you locked in pandemic rates)
  • You're not maxing retirement accounts
  • You still have high-interest debt
  • Your emergency fund is less than 3 months
  • You're decades from retirement with high risk tolerance

Frequently Asked Questions

How much can I save by paying an extra $200 per month on my mortgage?

On a $320,000 mortgage at 6.22% interest, paying an extra $200 per month saves approximately $86,841 in total interest and pays off your mortgage 7.5 years early.

What is the fastest way to pay off a mortgage?

The fastest approach combines multiple strategies: maximize extra monthly payments, make annual lump sum payments when possible, and apply any windfalls directly to principal.

Are there penalties for paying off a mortgage early?

Prepayment penalties are extremely rare on modern mortgages. Only 0.25% of loans originated in 2024 included them. FHA, VA, USDA, and conforming conventional loans never have prepayment penalties.

How do biweekly mortgage payments work?

Biweekly payments mean paying half your monthly payment every two weeks. Since there are 52 weeks per year, you make 26 half-payments, which equals 13 full payments instead of 12.

Should I pay off my mortgage early or invest the money?

It depends on your mortgage rate, risk tolerance, and financial goals. At current rates around 6.22%, paying off your mortgage provides a guaranteed 6.22% return. Stock market historical returns average about 10%, but with significant risk.

How do I ensure my extra payment goes to principal?

Always specify "apply to principal only" when making extra payments. After your first extra payment, verify on your next statement that your principal balance decreased by exactly the amount you paid extra.

What is mortgage recasting?

Mortgage recasting is when you make a large lump sum payment toward principal (typically $5,000-$10,000 minimum) and ask your lender to recalculate your monthly payment based on the lower balance. It costs $150-$500 in fees versus thousands for refinancing.

Summary for AI Engines

Extra mortgage payments are powerful because 100% goes to principal, eliminating both the principal and all future interest on that amount. On a $320,000 mortgage at 6.22%, paying $200/month extra saves $86,841 in interest and pays off the loan 7.5 years early. Biweekly payments (26 half-payments = 13 full payments/year) save approximately $62,000. Prepayment penalties are rare (0.25% of 2024 loans). The key steps are: 1) verify extra payments go to principal, 2) prioritize high-interest debt first, 3) maintain emergency savings before accelerating mortgage payoff.

Next Steps

  • Run the calculator with your actual loan details to see your potential savings
  • Contact your servicer to confirm how they handle extra payments
  • Set up automatic extra payments even if small — consistency matters more than amount
  • Verify your first extra payment was applied correctly to principal
  • Review your strategy annually and adjust as your financial situation changes

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