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Extra Mortgage Payments: Pros, Cons, And Savings

Turn spare cash into faster ownership and lower long-term loan costs.

Medha Deb
PUBLISHED AUG 12, 2026
5 MIN READ

Making extra payments on your mortgage can dramatically reduce the total interest you pay over the life of your loan and help you own your home outright much sooner. However, this strategy ties up cash in your home equity, potentially missing out on higher investment returns elsewhere. This comprehensive guide examines the advantages, drawbacks, calculation methods, and strategic considerations for prepaying your mortgage.

How Much Interest Can You Save With an Extra Mortgage Payment?

One of the most compelling reasons to prepay your mortgage is the substantial interest savings. On a typical 30-year mortgage, the majority of early payments go toward interest rather than principal, so extra payments applied to principal accelerate equity buildup and slash interest costs.

For example, consider a $400,000 mortgage at 6.8% interest with monthly principal and interest payments of $2,608. Making one extra payment per year ($2,608 annually) shortens the loan term and saves significant interest—often tens of thousands of dollars.

Another illustration: A $344,800 mortgage (after 20% down on a $431,000 home) at 6.71% over 30 years has regular payments of $2,227, totaling $456,994 in interest without extras. Adding the equivalent of two extra payments yearly—such as $371 extra monthly or $4,454 annually—reduces interest to $286,515 and pays off the loan in 20 years and 2 months, saving $170,480.

Scenario Total Interest Paid Payoff Time Interest Savings
No extra payments $456,994 30 years $0
$371 extra/month or $4,454/year $286,515 20 years, 2 months $170,480

Even smaller additions yield results. On the same loan:

Extra Monthly Payment Years to Payoff Interest Saved
$0 30 years $0
$10 29 years, 8 months $7,574
$25 29 years, 2 months $17,941

Shea Adair, a real estate investor, highlights: On a $150,000 mortgage at 4.5%, minimum payments of $760 total $123,609 in interest over 30 years. Increasing to $948 monthly ($188 extra) pays it off in 20 years, saving about $46,000.

Four Ways to Prepay Your Mortgage

There are several effective methods to make extra payments. Always specify that extras apply to principal only, or they may advance your next due date without maximum savings.

Pros of Making Extra Mortgage Payments

Prepaying offers clear financial and psychological benefits:

Cons of Making Extra Mortgage Payments

Despite benefits, prepaying has trade-offs requiring careful evaluation:

Should You Make Extra Mortgage Payments? Key Considerations

Prepay if: You have a 6+ month emergency fund, prefer guaranteed savings over investment risk, your rate exceeds safe returns (e.g., 6.71% > savings accounts), high-interest debt is cleared, and retirement savings are on track.

Skip or limit if: Mortgage rate is low (e.g., 3%), high-return investments available, need liquidity, or opportunity cost high. For low-rate loans, ‘play bank’ by saving cash at higher yields until rates drop below mortgage rate, then lump-sum paydown.

Opportunity cost is central: Compare mortgage rate to alternatives. At 6.8%, prepay beats most savings; at 3%, invest instead.

How to Make Extra Payments Correctly

Success hinges on proper application:

Mortgage Recasting vs. Refinancing

Recasting applies large principal payments to re-amortize, lowering payments without new loan. Cheaper than refinancing (no credit check, closing costs), ideal if rates rose or you want affordability over payoff speed.

Extra Payment Calculator Insights

Use online calculators to model scenarios. Input loan amount, rate, term, extra payment for payoff date and savings projections. Biweekly often simplest for steady extras.

Frequently Asked Questions (FAQs)

Can I make extra mortgage payments anytime?

Yes, at any time as lump sums or increments, as long as no penalties apply.

Do extra payments reduce my monthly amount?

No, they shorten term and save interest; monthly stays same unless recast.

What if I don’t specify ‘principal only’?

Extras may prepay future months, offering less savings.

Is prepaying better than investing?

Depends: Yes if rate > expected returns/risk-adjusted; no for low rates.

How soon can I recast my mortgage?

After significant principal reduction; lender policies vary.

References

  1. Is Prepaying Your Mortgage A Good Decision? — Bankrate. 2024. https://www.bankrate.com/mortgages/prepaying-your-mortgage/
  2. How Two Extra Mortgage Payments a Year Can Save You Big — ListWithClever. 2024. https://listwithclever.com/real-estate-blog/extra-mortgage-payments-a-year-can-save-you/
  3. Should You Make Extra Mortgage Payments? A Look at the Pros and Cons — HomeStreet Bank. 2025-01-10. https://www.homestreet.com/education-center/education-center-blogs/2025/01/10/should-you-make-extra-mortgage-payments–a-look-at-the-pros-and-cons
  4. Pros and Cons of Prepaying Mortgage — MoneyRates. 2024. https://www.moneyrates.com/mortgage/extra-mortgage-payment.htm
  5. Don’t make extra payments on your low-rate mortgage — play bank instead — PCASD. 2023-08-25. https://pcasd.com/dont-make-extra-payments-on-your-low-rate-mortgage-play-bank-instead/

This article is general information, not personal financial advice. Consider your own situation, or speak with a licensed adviser, before acting on it.

Medha Deb
About the author

Medha Deb

Medha Deb writes for BuildTheFund. Every figure is verified against primary sources per our editorial policy.

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