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When should you refinance your mortgage?

Refinancing makes sense when the numbers work in your favor: you can lower your rate enough to recoup the costs within a reasonable time, shorten your term, drop mortgage insurance, get out of an adjustable-rate loan, or tap equity for a good reason. Here is how to know if it is worth it, plus a simple break-even rule you can run yourself.

By Mindy Hay, Senior Loan Officer · NMLS #292224 · Updated September 2026

The main reasons to refinance

  • Lower your rate or payment (a rate-and-term refinance).
  • Shorten your term (for example, 30 years to 15) to pay off sooner and save interest.
  • Drop mortgage insurance once you have enough equity on a conventional loan.
  • Get out of an adjustable-rate loan into a fixed rate for predictability.
  • Tap equity with a cash-out refinance for improvements, debt consolidation, or other goals.

The break-even rule

Here is the simplest way to judge a rate-and-term refinance: divide the closing costs by your monthly savings. That is roughly how many months it takes to break even. If you will keep the home longer than that, refinancing generally makes sense.

Example: $4,000 in costs and $200 a month saved is a 20-month break-even. Plan to stay past 20 months? It likely pays off. Want to run your own numbers? Try the refinance break-even calculator.

Rate-and-term vs. cash-out

 Rate-and-termCash-out
GoalLower rate, term, or paymentAccess home equity as cash
New loan balanceAbout the sameLarger (you borrow more)
Common usesSave money, shorten term, drop PMIRenovations, debt payoff, big expenses

When NOT to refinance

Refinancing isn't always the move. Think twice if you plan to sell or move soon (you may not reach break-even), if it would restart your loan clock and cost more interest overall, or if the savings are too small to justify the costs. Mindy will be honest with you if the math doesn't work; sometimes the best advice is to wait.

Mindy Hay is a senior loan officer with Union Home Mortgage, based in Tigard and serving the greater Portland metro, Southwest Washington, and Arizona. See the full refinance page for options.

Frequently asked questions

When you can recoup the costs through monthly savings in a reasonable time, or it helps you shorten your term, drop mortgage insurance, leave an ARM, or tap equity for a good reason. Mindy can run the break-even for you.

Closing costs divided by monthly savings. $4,000 in costs and $200 a month saved is a 20-month break-even. Stay longer than that and it usually pays off. Try the calculator.

Yes, a cash-out refinance lets you borrow against your equity and receive the difference in cash. Mindy will show you the numbers.

Often about 30 to 45 days, depending on the loan and how fast documents come together.

Run the Numbers First

Let's see if a refinance is worth it for you.

Honest math, no pressure.

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