Discount Points on an Arizona Refinance 2026: When Buying Down Your Rate Pays Off

Nearly every refinance quote you get this fall will come with a version of the same offer: pay a little more today and we will lower your rate. Sometimes that is a genuinely good deal. More often, in a market where the 30 year fixed is sitting near 6.66% and traders are arguing about the next Fed move, it is a bet that you will not touch this loan for five years. Here is how to tell which one you are being handed.

How discount points actually work

A discount point is prepaid interest. You hand the lender 1% of the loan amount at closing and the lender gives you a permanently lower rate for the life of that loan. On a $420,000 refinance, one point is $4,200. Two points are $8,400. The Consumer Financial Protection Bureau explains points and lender credits in plain language, and it is worth two minutes of your time before any lender starts quoting you.

The part that trips people up is that one point does not equal a fixed rate reduction. Roughly 0.25% is the rule of thumb, but the real number changes daily with the mortgage bond market, and the second point almost always buys less than the first. On a wholesale rate sheet today, a Phoenix borrower with strong credit might see this shape:

• Zero points. 6.66%, no discount fee.
• One point, $4,200. 6.41%, a 0.25% improvement.
• Two points, $8,400. 6.21%, only 0.20% more than one point bought.
• Negative points. Take 6.91% and the lender credits you roughly $4,200 toward closing costs.

That last line is the one nobody puts in the ad. Points run in both directions. If you are short on cash or you think you will refinance again, taking a slightly higher rate to get the lender to pay your closing costs is a legitimate strategy, and it is the same math running backward. We break that structure down in our guide to the no closing cost refinance in Arizona.

One more thing to watch: discount points are not origination fees, and they are not lender fees. They should show up on their own line of your Loan Estimate under Origination Charges, labeled as points, with both the dollar amount and the percentage. If a quote just says "fees" and nobody can tell you how much of it is buying down your rate, that is your answer about the quote.

The break even math on a $420,000 Arizona refinance

Break even is the only number that matters, and it is simple: divide what the points cost by what they save you each month. Here is a $420,000 refinance, 30 year fixed, principal and interest only.

Principal and interest only on a $420,000 loan, 30 year fixed. Pricing illustrations, not quotes. Your rate depends on credit, loan to value, occupancy, and program.

Sixty one months is five years and one month. That is the number to sit with. Ask yourself honestly whether you will still be holding this exact loan, on this exact house, in October 2031. Not whether you will still live there. Whether the loan survives.

For most Arizona homeowners it does not. Between rate moves, cash out needs, divorce, job relocation, and the ordinary Valley pattern of trading up out of Chandler or Gilbert into North Scottsdale, the average mortgage in this market gets replaced well before year five. Every one of those events wipes out the unrecovered portion of your points. If you want to run your own numbers, our walkthrough on calculating a refinance break even point in Arizona goes deeper on the full closing cost picture, not just the points.

There is one wrinkle that makes points look better than the simple math suggests. Paying points lowers your rate permanently, which means if rates rise from here and you end up keeping the loan for fifteen years, the savings keep compounding long past break even. The problem is that this only pays off in the scenario where you were wrong about rates falling. You are essentially buying insurance against your own forecast.

Why refinance points are not deducted all at once

This is the piece almost every online points calculator gets wrong, and it changes the answer.

When you pay points to buy a home, you can generally deduct them in full in the year you paid them. When you pay points on a refinance, you cannot. Under IRS Publication 936, Home Mortgage Interest Deduction, points paid to refinance generally have to be deducted ratably over the life of the new loan. On a 30 year refinance, $4,200 in points becomes about $140 a year, not a $4,200 write off.

There is a consolation. If you refinance again later, the unamortized balance of the points from the earlier loan can generally be deducted in the year that loan is paid off. So the deduction is not lost, it is deferred. But if you were running your break even assuming an immediate tax benefit, redo it. And talk to your CPA, because we are mortgage brokers, not tax advisors, and the interaction with the standard deduction matters more than most people expect.

Estimate your new payment

When points make sense in Arizona, and when they do not

Points are a timeline bet, so the answer comes down to how long the loan lives.

Points usually make sense when:

• You are refinancing into a rate you would be happy to keep for a decade, and you have no plans to move.
• You are on a 15 year loan. Shorter terms hold their rate advantage differently and the payment savings hit harder relative to the cost.
• You have cash sitting idle earning less than your mortgage rate, and paying points is effectively a guaranteed return equal to that rate.
• You are on a non QM, bank statement, or DSCR loan where the base rate is higher, so each point buys a bigger absolute reduction.

Points usually do not make sense when:

• You are refinancing partly because you expect rates to keep falling. You cannot both believe that and rationally buy points.
• The cash for points would otherwise pay off a credit card at 22%.
• You are tight on reserves. Lenders count reserves, and spending them at closing can cost you the approval you were buying points on.
• You bought the house recently. Seasoning aside, another rate move is likely to hit before you clear break even.

The broader context matters here too. Mortgage pricing right now is being pushed around by the spread between mortgage bonds and Treasuries more than by anything a lender is doing, which we covered in our piece on why mortgage rates sit above the 10 year Treasury. If that spread compresses back toward its long run average, the market hands you most of what a point would have bought, for free.

Whatever you decide, get the comparison in writing at the same lock period and the same day, because rate sheets move. Our loan programs page lays out what is available across conventional, FHA, VA, jumbo, and non QM, and if you are weighing a move rather than a refinance you can browse current Valley listings at Arizona Luxury Property Search. When you want the real grid for your file, get in touch with our team at Pillar Mortgage Group.

Honest caveat: most Arizona homeowners refinancing in 2026 should not buy points, and we will tell you that even though the larger loan amount would pay us more. A five year break even in a market where the Fed's own chair is publicly undecided about direction is a long horizon to commit to. If you are not close to certain you will hold this loan past 2031, take the par rate or take the lender credit and keep your cash. There are a handful of files a year where points are clearly right, and on those we will say so just as directly.

Frequently asked questions

How much does one discount point cost on an Arizona refinance?

One point costs 1% of the loan amount. On a $420,000 refinance that is $4,200 paid at closing. It typically buys about 0.25% off your rate, though the exact reduction changes daily with the mortgage bond market and the second point always buys less than the first.

What is the break even on buying points when I refinance?

Divide the cost of the points by the monthly savings. On a $420,000 Arizona refinance, $4,200 in points that saves $69 a month breaks even at about 61 months, or five years and one month. If you refinance or sell before then, you lose the difference.

Are points on a refinance tax deductible?

Not all at once. Under IRS Publication 936, points paid to refinance generally must be deducted ratably over the life of the new loan, so $4,200 on a 30 year loan is about $140 a year. If you refinance again later, the unamortized balance can generally be deducted in that year. Confirm with your CPA.

Should I buy points if I think mortgage rates will fall?

No. Buying points is a bet that you will keep this loan past your break even point, and expecting rates to fall is a bet that you will refinance before then. Those two positions contradict each other. If you believe rates are coming down, take the par rate or a lender credit.

What is a lender credit and how is it different from points?

A lender credit is points running in reverse. You accept a slightly higher rate and the lender pays part of your closing costs. On a $420,000 loan, accepting roughly 6.91% instead of 6.66% can generate about $4,200 in credit. It costs about $70 more a month, which suits anyone planning to refinance again or short on cash at closing.

Do points make more sense on a 15 year refinance in Phoenix?

Often yes. On a shorter term the payment savings are larger relative to the cost of the points, and borrowers who choose 15 year loans are statistically far more likely to hold them to maturity. That combination shortens break even and raises the odds you actually reach it.