Mortgage Points Explained: When to Buy Down Your Rate

1. What Are Mortgage Points?

Mortgage points (also called "discount points") are fees you pay directly to your lender at closing in exchange for a lower interest rate on your loan. Essentially, you're prepaying interest to get a discount on the rate you'll pay for the life of the mortgage.

There are two types of points:

• Discount points:Paid to lower your interest rate. This is what most people mean when they say "buying points."
• Origination points:A lender fee for processing the loan. These do NOT lower your rate — they're just a cost. We're focused on discount points in this guide.

2. How Points Work

The math behind points is straightforward:

So on a $300,000 loan, one point costs $3,000 and typically reduces your rate from, say, 6.75% to 6.50%. Two points would cost $6,000 and might lower the rate to 6.25%.

The rate reduction per point isn't always exactly 0.25% — it varies by lender, market conditions, and how many points you're buying. Some lenders allow fractional points (e.g., 0.5 points). Always ask your lender for their specific rate sheet showing cost per point.

Points are paid at closing as part of your closing costs. They appear on your Loan Estimate and Closing Disclosure as a line item under "Points."

3. The Break-Even Calculation

The key question with points is: how long does it take for your monthly savings to recoup the upfront cost? This is your break-even point.

For example, if one point costs $3,000 and saves you $45/month:

$3,000 ÷ $45 = 67 months (about 5.5 years) to break even.

If you plan to stay in the home longer than 67 months, buying the point saves you money. If you might sell or refinance sooner, you'd lose money on the deal.

After the break-even point, every remaining month is pure savings. On a 30-year loan, if you break even at month 67, you save $45/month for the remaining 293 months = $13,185 in total savings beyond the break-even point.

4. When Buying Points Makes Sense

Points tend to be a good deal when:

• You plan to keep the loan for a long time — at least 5–7 years past closing, with no plans to refinance
• You have extra cash at closing — beyond your down payment, closing costs, and emergency fund
• Rates are relatively high — the absolute dollar savings per point are larger on higher-rate loans
• You want to lower your monthly payment — for budget comfort or to qualify for a larger loan
• You're in a high tax bracket — points are often tax-deductible in the year paid

Points usually don't make sense when:

• You might move or refinance within 3–5 years
• You'd have to stretch your budget to afford them (use that cash for a bigger down payment instead)
• Rates are already very low (less room for rates to stay low long-term)
• You have higher-interest debt that could be paid off instead

5. Example Calculations

6. Tax Implications

Mortgage points are generally tax-deductible, which can improve the math:

• Purchase loans: Points paid on a purchase mortgage are typically deductible in full in the year paid (if you itemize deductions).
• Refinance loans: Points on a refinance must be deducted over the life of the loan (e.g., $3,000 over 30 years = $100/year deduction).
• Impact on break-even:If you're in the 24% tax bracket, a $3,000 point effectively costs $2,280 after the tax deduction, shortening your break-even from 67 to 51 months.

Note: You must itemize deductions to claim points. With the current standard deduction at $14,600 (single) / $29,200 (married filing jointly) for 2025, not everyone benefits from itemizing. Consult a tax professional for advice specific to your situation.