Should You Consider Refinancing to a 15-Year Mortgage?
A 15-year mortgage can help you pay down principal faster, but refinancing isn’t always about lowering your payment. Learn how to compare your options.
When homeowners think about refinancing, the first goal is often reducing their monthly mortgage payment.
But refinancing can serve another purpose.
Some homeowners may be willing to maintain a similar payment—or accept a higher one—in exchange for paying off their mortgage sooner and potentially reducing the total interest paid over the life of the loan.
That's where a 15-year mortgage can be worth evaluating.
Why a 15-Year Mortgage Can Be Attractive
Compared with a longer-term mortgage at the same loan amount, a 15-year mortgage generally requires larger monthly principal-and-interest payments because the debt must be repaid over fewer months.
But that shorter amortization period also means principal is paid down much faster.
Depending on market conditions and borrower qualifications, shorter-term mortgages may also be available at different interest rates than comparable longer-term mortgages.
The combination can substantially change the economics of the loan.
You Can Build Equity Faster
A major advantage of a shorter amortization schedule is faster principal reduction.
With a traditional 30-year amortization, particularly during the earlier years of the loan, a significant portion of the principal-and-interest payment is attributable to interest.
With a 15-year amortization, the balance must be repaid in half as many scheduled monthly payments. As a result, substantially more principal generally must be paid each month.
That can allow homeowners to build equity more quickly, assuming home values and other factors remain unchanged.
Additional equity may provide greater financial flexibility if you eventually want to:
- Sell the home
- Enter retirement with less mortgage debt
- Access home equity in the future
- Purchase another property
- Reduce your overall indebtedness
The Real Question Is the Payment Difference
Instead of assuming a 15-year mortgage will or won't work, calculate it.
Compare:
Your existing mortgage payment and remaining amortization
against
The proposed 15-year payment and total cost of refinancing.
Then ask:
"Is the additional required monthly payment worth the faster payoff and potential reduction in total interest?"
For some homeowners, the answer may be yes.
For others, absolutely not.
Don't Ignore the Cost of Refinancing
A shorter loan term does not automatically make refinancing financially beneficial.
A refinance may involve closing costs, a different interest rate, a new loan balance, and potentially a different payoff date.
You should therefore compare the proposed refinance against keeping your existing mortgage, not merely compare a new 15-year mortgage against a hypothetical new 30-year mortgage.
Important questions include:
- What is my existing mortgage rate?
- How many years remain on my current mortgage?
- What is my current unpaid principal balance?
- What would the new rate and APR be?
- What are the refinancing costs?
- What would my new required payment be?
- How long do I expect to own the home?
- How much total interest would I pay if I keep my existing loan?
- How much would I pay under the proposed refinance?
That comparison provides a much more useful picture than simply looking at the advertised interest rate.
What About Keeping a 30-Year Mortgage and Paying Extra?
That's an important alternative.
A homeowner may be able to retain a longer-term mortgage and voluntarily make additional principal payments rather than refinancing into a 15-year loan.
That approach can provide greater payment flexibility because the contractual minimum payment remains lower.
The tradeoff is discipline: voluntary additional principal payments only accelerate payoff if you actually make them consistently.
Before refinancing, compare both strategies.
In some circumstances, keeping an existing mortgage and making additional principal payments may be financially preferable to paying the costs associated with refinancing. In others, a new shorter-term mortgage may produce a better outcome.
The math matters.
When a 15-Year Mortgage May Not Make Sense
A 15-year mortgage isn't right for everyone.
It may be less attractive when:
- The required payment would put pressure on your monthly budget
- You lack adequate emergency reserves
- You have higher-interest obligations that should be evaluated first
- Your income may decline
- You expect to sell the property relatively soon
- Refinancing costs outweigh the expected benefit
- Your existing mortgage has terms that are difficult to improve upon
- You value payment flexibility more than accelerated payoff
Becoming mortgage-free sooner can be an excellent financial goal, but not if the required payment leaves your household financially vulnerable.
The Bottom Line
Refinancing isn't always about lowering your payment.
A 15-year mortgage can be worth evaluating for homeowners who have sufficient cash flow and want to pay down principal faster, potentially reduce lifetime interest expense, and become mortgage-free sooner.
But the correct comparison isn't simply 15 years versus 30 years.
It's: "What happens financially if I keep the mortgage I already have versus refinancing into the proposed 15-year loan?"
Compare the payment, rate, APR, closing costs, remaining term, total expected borrowing cost, and your expected time in the property.
Then decide whether accelerating the mortgage fits your broader financial goals.
Ready Rate can help you model both scenarios so you can see the difference before making a decision.
This article is for educational purposes only and is not a commitment to lend or extend credit. Loan programs, interest rates, terms, qualification requirements, and availability are subject to change and borrower eligibility. Other restrictions may apply.
Want to see how these options compare for your situation?
“A Ready Rate mortgage advisor can help you compare available options, costs and payments based on your individual circumstances.”
Continue Learning
What Does “No Closing Costs” Really Mean on a Mortgage?
A “no-closing-cost” mortgage generally doesn’t mean nobody is paying the costs. Understand how costs may be structured so you can compare offers accurately.
Cash-Out Refinance vs. HELOC vs. Home Equity Loan: Which Option Makes Sense?
Three common ways to access home equity work very differently. Compare cash-out refinance, HELOC, and home equity loan to understand which may fit your situation.