Your lender’s website says 6.05%. Your credit union’s board says 6.30%. A broker on the phone quotes 6.12%, then mentions “a couple of points.” Three numbers, three different loans, and none of them is the figure that actually decides whether refinancing is worth it.
Comparing refinance rates isn’t hard because the math is complicated. It’s hard because every lender advertises its best-case scenario while you live in your actual one. Below is the sequence I’d walk any homeowner through, using one example that runs from the first phone call to the signed paperwork.
Step 1: Work Out Your Break-Even Number Before You Call Anyone
Ignore the rate for a minute. The number that filters out most bad offers is how many months it takes for your monthly savings to repay the cost of refinancing.
Here’s the example I’ll use throughout. You owe $320,000 at 6.9% with 27 years left on the loan. Principal and interest run about $2,180 a month.
You refinance to 6.1% and keep the remaining 27-year term. New payment: roughly $2,017. Monthly savings: $163. Closing costs land at $4,800.
$4,800 ÷ $163 = 29.4 months.
Stay in the house at least two and a half years and the refinance pays for itself. Sell in 18 months and you’ve spent $4,800 to save about $2,900. That’s the whole calculation, and it’s worth running before you talk to a single loan officer.
Now watch what happens if you reset to a fresh 30-year term instead. The payment falls to about $1,939, saving $241 a month, and the break-even shortens to 20 months. Looks great, until you notice you’ve added three years of payments back onto the loan. The monthly relief is real and the lifetime cost is higher. Neither choice is wrong, but you should make it on purpose rather than let someone else make it for you. For a fuller picture of whether a lower payment is waiting for you, run both versions side by side.
Step 2: Collect the Four Numbers Every Lender Will Ask For
Rate quotes only mean something when the loan behind them is identical. Pull these four items together first:
- Middle credit score from all three bureaus. Lenders typically use the middle of your three scores; for a couple applying together, it’s the lower of the two middle scores.
- Loan-to-value, which is your current balance divided by a realistic appraised value, not the Zestimate.
- Current rate and remaining term, straight off your latest statement.
- Occupancy and property type: primary home, second home, or investment property; single-family, condo, or townhouse.
A 6.05% quote on a 75% LTV owner-occupied house is a completely different product from 6.05% on an 85% LTV investment condo. If you want a shortcut for reading quote sheets, this guide on how to know if today’s numbers work for you breaks down what each figure is telling you.
Step 3: Get Three Quotes on the Same Day
Rates move daily, sometimes twice daily, so quotes collected across a week aren’t comparable. Call all three on a Tuesday morning and ask for the same request, word for word: “$320,000, 27-year term, 78% LTV, single-family primary residence, 760 credit score. Give me your rate and your total lender fees.”
Mix your sources. A retail bank, a credit union, and an independent mortgage broker will often produce three genuinely different prices for the same borrower. Brokers work from wholesale pricing and can sometimes beat retail by an eighth to a quarter point, but they charge their own fee, so check both columns.
A realistic spread from a single morning might look like this:
- Bank A: 6.35% with $2,900 in total lender fees
- Credit union: 6.10% with $4,800 in fees, including one point
- Broker: 6.50% with a $1,400 lender credit toward costs
The cheapest rate is the credit union. The cheapest loan depends on how long you keep it. At $163 a month in savings, Bank A breaks even in 18 months and the credit union takes 29. If you’re moving in three years, Bank A wins despite the higher headline rate.
Step 4: Read the Loan Estimate Line by Line
Within three business days of applying, every lender owes you a Loan Estimate. It’s a standardized three-page form, which makes it the only fair way to compare offers. Focus on page two.
Boxes A, B, and C: the costs you can shop
Box A holds origination charges, including any points. Box B is services you can’t shop for, like the appraisal and credit report. Box C is services you can shop for, and title insurance usually sits here. Lenders who look cheap in Box A sometimes make it back in Box C.
The points question
One point costs 1% of the loan, or $3,200 on a $320,000 mortgage, and typically shaves about 0.25% off the rate. On this loan that’s roughly $51 a month. Divide $3,200 by $51 and you get 63 months. Paying points only makes sense if you’ll keep the loan past five years.
Lender credits work in reverse
A credit means the lender covers part of your closing costs in exchange for a higher rate. Taking a $1,400 credit to move from 6.10% to 6.35% adds about $50 a month to your payment. If you’re refinancing again in two years, the credit is the better trade. If this is your forever loan, it isn’t. Either way, turning today’s refinance rates into real savings comes down to matching the pricing structure to your actual timeline.
Step 5: Decide Whether to Lock or Float
Once you’ve picked a lender, you choose between locking the rate and letting it float until closing.
A 30-day lock is cheapest and usually enough if your paperwork is in order. A 45- or 60-day lock costs a little more but buys breathing room if the appraisal drags. If you’re floating, ask specifically about a float-down option, which lets you capture a lower rate if the market improves before closing, usually for a small fee.
Locking isn’t a guess about the future, it’s a decision about certainty. If the payment works at today’s rate, lock and stop watching the news. If you’d be stretching, floating is a bet you can’t afford to lose. If you’re trying to time the market, it helps to understand what’s moving in refinance rates right now before you commit.
Step 6: Watch the Five Places Refinances Quietly Go Wrong
- Rolling costs into the loan and calling it “no-cost.” Nothing is free. You’ve just financed $4,800 over 27 years, where it costs roughly $9,000 once interest is added.
- Resetting the term without noticing. A 27-year loan that becomes a 30-year loan adds 36 payments.
- Borrowing more than you planned. The extra $40,000 available at closing is tempting, and cash-out refinance rates in 2026 deserve a separate conversation from a straight rate reduction.
- Assuming you skip a payment. You don’t. You pay prepaid interest at closing to cover the gap, which is why you need cash on hand even on a “no-cost” loan.
- Forgetting the appraisal. A low valuation can push your LTV above 80% and trigger mortgage insurance you weren’t expecting.
Step 7: Know When to Walk Away
Some refinances should never close, and recognizing that early saves you money and about six weeks of your life. Walk away if:
The break-even stretches past the time you realistically expect to stay. If you think you’ll move in three years, a 40-month break-even is a losing bet no matter how good the rate looks.
The new rate isn’t meaningfully below your current one. On a $320,000 balance, dropping from 6.9% to 6.6% saves about $60 a month. That’s a real $720 a year, but it takes nearly seven years to recover $4,800 in costs. Unless your lender is offering a streamlined program with minimal fees, wait.
Total lender fees exceed 2% of the loan amount with no offsetting rate advantage. On $320,000 that’s a $6,400 ceiling, and anything above it needs a clear reason.
The lender won’t put terms in writing. You’re entitled to a Loan Estimate within three business days of applying. A loan officer who keeps giving you verbal numbers and asking you to “trust me” is telling you something useful.
And a final, less obvious one: if you’re refinancing to consolidate credit card debt, check whether you’re trading an unsecured balance for a secured one. Rolling $18,000 of cards into your mortgage at 6.1% over 30 years costs about $1,500 in interest, which beats a 24% card rate comfortably. But if you run the cards back up afterward, you’ve converted a debt you could have negotiated into one backed by your house. The math works only if the behavior changes.