A refinance is a new loan replacing the one you already have. The right comparison is therefore your existing loan versus the new structure, including the costs of making the change. A lower payment can be useful, but it does not tell you by itself whether you are saving money.
Start with the result you want: payment relief, a shorter payoff, a different rate structure, or a change in mortgage insurance. Then measure whether the new loan gets you there at a cost that fits your timeline.
Separate cash-flow savings from borrowing-cost savings. Fees, the new payoff date, and the balance you will still owe can change the answer.
Refinance Cost Model
Compare keeping the existing loan with refinancing. Change the rates, terms, costs, and time horizon. The results include the balance still owed, rather than stopping at a lower payment.
Refinancing costs $6,495 less in interest and net fees at this horizon.
| Compare | Current Loan | New Loan |
|---|---|---|
| Starting Balance | $350,000 | $350,000 |
| Balance Still Owed | $320,079 | $327,638 |
Fixed-rate model with scheduled payments and costs counted once. Excludes tax effects, investment returns, mortgage insurance, escrow, penalties, and extra principal payments. Fees financed into the balance also accrue interest; simple upfront-cost recovery is not shown for that case.
Be Specific About What You Want to Improve.
Lowering the required monthly payment is a cash-flow goal. Paying the loan off sooner is a repayment goal. Moving from an adjustable rate to a fixed rate is a predictability goal. They can lead to different loan structures and different measures of success.
For example, a shorter term may increase the payment while reducing interest over the life of the loan. Extending the term can do the opposite. Removing mortgage insurance can also affect the comparison, but the savings depend on the actual current and proposed loans.
State your priority before looking at quotes. Then ask for a comparison that measures it directly. If payment relief is the priority, still understand the longer-term tradeoff. If total cost is the priority, do not stop at the required payment.
Use Simple Break-Even as a First Filter.
A basic cost-recovery calculation divides the refinance costs by the monthly payment reduction. If the change costs $5,000 and saves $200 each month, it takes 25 months for those payment savings to equal the costs.
Now compare that timeline with how long you expect to keep the new loan. Selling or refinancing again after 18 months would not recover the $5,000 through those $200 payment savings alone. Keeping it for several years creates a different starting point.
This calculation has limits. It ignores how fast principal is repaid, the time value of money, tax effects, and changes in other charges. It is especially incomplete when the loan term changes. Use it to ask a better question, then examine balances and interest.
Simple Cost Recovery
A hypothetical $5,000 cost and $200 monthly payment reduction.
At 18 months, $3,600 of payment savings would still be $1,400 short of the costs. This is payment-based math, not a complete economic comparison.
Watch What Happens to the Payoff Date.
If you have 20 years left and refinance into a new 30-year loan, you have added ten years to the scheduled payoff. Even at the same balance and rate, spreading repayment across more years can lower the payment and increase total interest.
Compare at least two proposed terms when they are available: the term advertised in the quote and a term closer to the time remaining on your current loan. This helps reveal how much of the lower payment comes from pricing and how much comes from stretching repayment.
You may prefer a lower required payment and plan to pay extra. That can be a reasonable structure to examine, but model the extra payments explicitly and confirm any prepayment terms. Do not compare a disciplined extra-payment plan on one loan with minimum payments on the other without labeling the difference.
Find Out Where the Refinance Costs Are Going.
Costs can be paid in cash, added to the new loan balance when permitted, or covered partly through lender credits. Each changes the cash and debt picture. Ask for the loan amount, cash required, and credits to be shown clearly.
Financing $5,000 of costs means the new balance starts $5,000 higher than it otherwise would. You also pay interest on that added principal. Paying little out of pocket does not mean the transaction is free.
A lender credit may reduce cash needed at closing in exchange for a higher rate. Some credits have other explanations. Compare the actual pricing with and without the credit, rather than using the label “no closing costs” as the entire analysis.
| How Costs Are Paid | What Changes |
|---|---|
| Cash at closing | You keep the loan balance lower, but use cash now. |
| Financed into the loan | The new principal is higher, and interest applies to the added amount. |
| Lender credit | Upfront costs may fall, potentially in exchange for a higher rate. |
Compare Interest and Balances at the Same Future Date.
Choose a practical horizon: three years, five years, or the time you expect to sell or make another financing change. Compare the payments made and the balance remaining under both structures at that date.
Principal payments reduce the debt you still owe. Interest and transaction fees are borrowing costs. The model above separates them, so a lower monthly payment does not automatically appear to be a lower cost.
For financed fees, the model increases the new starting balance and includes interest on that balance. It also counts the fees once as a transaction cost. It does not model mortgage-insurance changes, taxes, investment returns, prepayment penalties, or future adjustable-rate changes. Add those details when comparing actual offers.
Bring the Current Loan Into the Conversation.
A new quote is only half of the comparison. Bring your current mortgage statement, remaining term, interest rate, mortgage-insurance information, and any details about an adjustable-rate feature or prepayment charge.
Then ask your team for a written side-by-side comparison using the same goal and horizon. Confirm which fees are new transaction costs and which amounts are prepaid expenses or escrow funding. They affect cash at closing, but they do not all represent the same kind of economic cost.
Team Pure Capital can explore available refinance options through West Capital Lending’s network. Sometimes the useful outcome is a better structure; sometimes the numbers support keeping the loan you already have. The comparison should make that clear.
Questions Worth Asking.
Sources & Further Reading
- CFPB: No-Cost and No-Closing-Cost Refinancing
- CFPB: Compare and Negotiate Loan Offers
- CFPB: Shopping for a Mortgage
Reviewed October 6, 2026. Examples are hypothetical and tools illustrate the entered assumptions. Loan terms, eligibility, and requirements depend on the actual program and file.