A conventional refinance replaces your existing mortgage with a new one, often to change the rate, the term, or both. Whether it's worth doing depends on total cost, expected time in the loan, and what you'd do with any monthly savings.
Who this may fit
Current homeowners considering a change in rate, term, or loan structure who want to make the decision on a total-cost basis rather than headline rate alone.
Key decision factors
- Break-even period vs how long you'll keep the loan
- Change in term (extending vs shortening)
- Closing costs, including whether they're rolled into the loan
- Whether PMI is added or removed by the refinance
Illustrative example
Common mistakes
- Focusing only on monthly payment change
- Ignoring the reset of the amortization schedule
- Overlooking PMI implications of a new appraisal
Questions to ask a licensed loan officer
- What is my break-even in months on this refinance?
- How does the new term change my total interest paid?
- Are there no-cost or lender-credit structures to compare?
Sources
We link to primary sources for every substantive claim. Publication dates below are marked as unverified until confirmed under our Source Policy.
- Fannie Mae Single-Family Selling GuideFannie Mae · Published/effective: living document · Last checked: 2026-07-28
- Fannie Mae Announcement SEL-2026-06 — Selling Guide UpdatesFannie Mae · Published/effective: 2026-06-03 · Last checked: 2026-07-28
- Freddie Mac Single-Family Seller/Servicer GuideFreddie Mac · Published/effective: living document · Last checked: 2026-07-28
- Freddie Mac Guide Bulletin 2026-7Freddie Mac · Published/effective: 2026-06-03 · Last checked: 2026-07-28
- CFPB — Owning a Home / MortgagesConsumer Financial Protection Bureau · Published/effective: living resource · Last checked: 2026-07-28
- CFPB Regulation Z (12 CFR Part 1026) — Truth in LendingConsumer Financial Protection Bureau · Published/effective: Most recently amended 2026-04-08 · Last checked: 2026-07-28
Related guides and calculators
- Conventional Cash-Out Refinance
How a conventional cash-out refinance may work and the trade-offs to weigh.
- Discount Points Break-Even Calculator
Compare the upfront cost of discount points to monthly principal-and-interest savings and estimate a break-even month.
- Mortgage Payment Calculator
Estimate principal, interest, taxes, insurance, HOA, and PMI for a conventional loan using assumptions you control.