Should You Buy Mortgage Points? How to Calculate the Break-Even Point

Should You Buy Mortgage Points? How to Calculate the Break-Even Point

Your lender gives you two options:

Option A: Higher interest rate with lower upfront costs.

Option B: Pay mortgage points upfront to get a lower interest rate.

Which one should you choose?

A lower rate sounds better.

But if you're paying thousands of dollars to get it, we need to know how long it will take for the monthly savings to recover that upfront cost.

That's where the break-even point comes in.

What Are Mortgage Points?

Mortgage points—often called discount points—are upfront costs paid in exchange for a lower mortgage interest rate when offered by the lender.

One discount point generally equals:

1% of the loan amount.

For example:

Loan amount: $400,000

One point: $4,000

Loan amount: $300,000

One point: $3,000

Pretty simple so far.

But here's where buyers get confused.

One Point Does NOT Mean Your Rate Drops 1%

This is important.

Paying one point does not automatically reduce your interest rate by one percentage point.

There is no universal rule saying:

1 point = 1% lower interest rate.

The amount a particular point cost changes the rate depends on current mortgage pricing, lender, loan program and other factors.

Ask your lender for actual options.

What Does Buying Points Do?

If you pay discount points and receive a lower rate, your monthly principal-and-interest payment may decrease.

That can create savings over time.

But you paid money upfront to receive those savings.

So the real question becomes:

How long will it take me to earn that money back through the lower monthly payment?

That's Your Break-Even Point

The simplified formula is:

Cost of Points ÷ Monthly Savings = Break-Even Months

Let's use an example.

Suppose:

Cost of points: $6,000

Monthly principal-and-interest savings: $100

$6,000 ÷ $100 = 60 months

That's:

5 years

In this simplified example, it takes approximately five years for the monthly savings to equal the upfront cost.

Why Does Break-Even Matter?

Suppose you pay $6,000 for the lower rate.

Then you sell the house two years later.

Or refinance after three years.

You may not have kept the original mortgage long enough for the monthly savings to recover the upfront cost.

That doesn't automatically mean buying points was a bad decision.

But it shows why you should calculate before paying.

Example: No Points vs. Paying Points

Let's imagine your lender gives you these hypothetical options:

Option A

Rate: 6.50%

Points: $0

Option B

Rate: 6.00%

Points: $6,000

Now ask the lender:

What is the principal-and-interest payment under each option?

Suppose Option B saves:

$125 per month

Then:

$6,000 ÷ $125 = 48 months

Break-even:

Approximately 4 years

If you expect to keep the mortgage much longer than four years, the permanent rate reduction may deserve consideration.

If you expect to sell or refinance much sooner, the calculation may look different.

This Is a Simplified Calculation

The basic break-even formula is useful, but it isn't a complete financial analysis.

A more detailed comparison may consider:

• Cash available today

• Opportunity cost of using that cash

• Tax considerations

• Future plans

• Other loan costs

• Likelihood of keeping the mortgage

• Alternative uses for seller or builder credits

Your lender or financial professional can help you evaluate the full picture.

What If the Builder Is Paying for the Points?

Now things get more interesting.

Suppose a new construction builder offers a financing incentive.

Instead of you paying $6,000 for discount points, the builder provides an eligible contribution toward the cost.

That can make the lower-rate option more attractive.

But don't automatically choose it.

Ask:

Could I use that incentive toward something else?

Maybe you have the option to apply permitted funds toward:

• Closing costs

• Prepaids

• Discount points

• Temporary buydown

• Other eligible expenses

We should compare the options.

Seller-Paid Points

Depending on the loan program, transaction and contribution limits, seller concessions may potentially be used toward eligible financing costs such as discount points.

Again, your lender needs to confirm what's permitted.

Don't negotiate a large credit until you know how much you can actually use.

Points vs. Closing Costs

Imagine you have $10,000 in builder or seller credits available.

Option A

Use the credit to pay eligible closing costs.

You preserve more of your cash.

Option B

Use the credit to buy down the rate.

Your monthly payment may be lower.

Which is better?

Depends on what you need most.

If using the credit for points means bringing significantly more of your own cash to closing, preserving cash may be more important.

Points vs. Price Reduction

Another common comparison:

Would I rather have $10,000 off the house or $10,000 toward a rate buydown?

A price reduction lowers the amount you're purchasing and potentially financing.

A permanent rate buydown may create a different amount of monthly savings.

Ask the lender to calculate both.

Don't guess.

What About a 2-1 Buydown?

A 2-1 temporary buydown is different from paying discount points for a permanent lower rate.

With a typical 2-1 structure, funds temporarily subsidize payments during the first two years.

With a permanent rate buydown, the note rate itself is lower under the terms of that loan.

Those strategies serve different purposes.

Should You Buy Points If You Plan to Refinance?

Be careful with this reasoning.

You may hear:

"Don't buy points because you'll refinance next year."

Or:

"Buy the temporary rate because you'll refinance before it expires."

Nobody knows exactly where future mortgage rates will be.

Refinancing may also depend on:

• Credit

• Income

• Equity

• Property value

• Loan guidelines

• Closing costs

Make today's financing work without relying on a future refinance.

Should You Buy Points If You Plan to Stay Long-Term?

Possibly.

If you expect to keep the mortgage well beyond the break-even period, a permanent rate buydown may be worth evaluating.

But even then, ask:

What else could I do with that money?

For example, would keeping $8,000 in emergency savings be more valuable to you than lowering the payment?

There isn't one answer for everyone.

Don't Empty Your Savings for a Lower Rate

A beautiful mortgage rate isn't very comforting when the AC breaks and you have $200 in the bank.

Before paying thousands upfront, make sure you're also planning for:

• Emergency fund

• Moving expenses

• Home repairs

• Insurance deductible

• Appliances

• Furniture

• Other ownership costs

Homeownership doesn't stop at closing.

Compare APR Too

The interest rate is important.

But also review the APR and Loan Estimate.

APR can help reflect certain financing costs associated with the loan.

It isn't the only number you should use, but it can help when comparing loan options.

Ask for the Same Loan Scenario

When comparing lenders, try to compare similar scenarios.

Don't compare:

Lender A at 6% with points

against

Lender B at 6.5% with no points

and conclude Lender A is automatically cheaper.

Ask each lender to show comparable options when possible.

Ask Your Lender for a Rate Sheet Comparison

You can ask:

"Show me the rate with zero points."

Then:

"Show me the cost to lower the rate."

For each option, compare:

• Interest rate

• Points

• Lender fees

• APR

• Principal-and-interest payment

• Estimated total payment

• Cash to close

Then calculate the break-even point.

A Lower Rate Isn't Free

This is the main lesson.

When someone advertises:

"Get a 5.25% rate!"

ask:

At what cost?

Maybe the builder is paying for it.

Maybe the buyer is paying points.

Maybe it applies only to certain homes.

Maybe a specific loan program or lender is required.

Maybe significant conditions apply.

The rate by itself doesn't tell you whether the deal is good.

When Buying Points May Make Sense

Buying points may be worth considering when:

• The upfront cost is reasonable

• The monthly savings are meaningful

• You expect to keep the mortgage beyond the break-even point

• You have sufficient cash reserves

• The option compares favorably with other uses of your money or credits

When You May Think Twice

You may want to evaluate carefully when:

• Break-even takes many years

• You expect to move relatively soon

• You're using most of your savings

• You have more important immediate expenses

• Another financing option offers better overall value

My Favorite Question to Ask the Lender

Don't just ask:

"What's the lowest rate?"

Ask:

"What does it cost me to get that rate, and how long does it take me to recover that cost?"

That changes the entire conversation.

Final Thoughts

Should you buy mortgage points?

Maybe.

Start with:

Cost of Points ÷ Monthly Savings = Approximate Break-Even Period

Then consider:

How long will I keep the mortgage?

How much cash will I have after closing?

Could seller or builder credits be used differently?

What does the Loan Estimate show?

The lowest rate isn't automatically the best mortgage.

The best option is the one where the complete numbers make sense for your situation.

About Marysol Calvillo

I'm Marysol Calvillo, a real estate broker helping buyers throughout Katy, Cypress, Hockley and the greater Houston area understand builder incentives, seller concessions and the numbers behind their home purchase.

My goal is to help buyers know what questions to ask their lender before choosing a financing incentive simply because the advertised rate looks good.

Call to Action

Considering paying mortgage points or using a builder incentive to lower your rate? Ask your lender for the zero-point option and the buydown option. Then let's compare the cost, monthly savings and break-even point before you decide.