MortgageMath

Mortgage Points Calculator

By MortgageMath Editorial Team Last reviewed Methodology

A mortgage points calculator determines whether buying discount points makes financial sense by calculating the break-even timeline. Enter your loan amount, current rate, points to buy, and expected rate reduction to instantly see when — or if — the points pay off.

Break-Even Point

5 yr 1 mo

to recoup the $3,500 point cost

Rate without points6.89%
Rate with 1 point6.64%
Monthly payment (no points)$2,303/mo
Monthly payment (with points)$2,245/mo
Monthly savings$58/mo

Points Cost

$3,500

Break-Even

5 yr 1 mo

Total Savings (30 yr)

$17,452

Interest Saved

$20,952

Points pay off in 5 yr 1 mo. If you stay in the home longer, buying points saves you money. Total net savings over the full 30-year term: $17,452.

What are mortgage discount points?

Mortgage discount points are prepaid interest paid at closing to permanently buy down your interest rate. One point equals 1% of your loan amount. If your loan is $350,000, one point costs $3,500. In exchange, your lender reduces your interest rate — typically by 0.20 to 0.25 percentage points per point, though the exact reduction varies by lender and market conditions.

Points are disclosed on your Loan Estimate and Closing Disclosure under "Origination Charges." Your Loan Estimate will show the rate with and without points, allowing you to make an informed comparison. Under the TRID (TILA-RESPA Integrated Disclosure) rules enforced by the CFPB, lenders are required to quote rates in a way that reflects both options.

Points are distinct from origination fees, which are charged for processing the loan and do not reduce your rate. Always clarify with your lender which fees are discount points (rate-reducing) vs. origination fees (processing charges).

How break-even analysis works

Break-even for points is straightforward: divide the upfront cost by the monthly savings.

Break-even months = Points cost ÷ Monthly payment savings

For example: 1 point on a $400,000 loan = $4,000. If this reduces your rate from 7.25% to 7.00%, the monthly savings on a 30-year loan are approximately $68/month. Break-even = $4,000 ÷ $68 = 59 months (about 5 years). If you stay in the home longer than 5 years, you come out ahead. If you sell or refinance before 5 years, you lose money.

Points Cost ($400K loan) Rate Reduction (0.25%/pt) Monthly Savings Break-Even
0.5 $2,000 −0.125% $34/mo ~59 mo
1.0 $4,000 −0.25% $68/mo ~59 mo
2.0 $8,000 −0.50% $135/mo ~60 mo
3.0 $12,000 −0.75% $202/mo ~60 mo

Assumes $400,000 loan, 7.25% base rate, 30-year term, 0.25% reduction per point.

When buying points makes sense — and when it doesn't

Points make sense when:

  • You plan to stay long-term. The longer you stay, the more months of savings accumulate after break-even. A 10-year homeowner who breaks even in 5 years enjoys 5 years of net savings.
  • Rates are unlikely to drop soon. If rates fall and you refinance, you lose the unrecovered portion of your points. Points are more valuable when you are confident you won't refinance.
  • You have extra cash at closing. Points only make sense if you are not stretching your down payment or depleting your emergency fund to buy them.
  • You can deduct them. If you itemize tax deductions, points may be fully deductible in the year paid on a purchase loan, improving the effective break-even calculation.

Points don't make sense when:

  • You may move or refinance within 5 years. Short expected holding periods make break-even analysis unfavorable.
  • Your down payment is below 20%. Use that cash to increase your down payment and eliminate PMI instead.
  • You have high-interest debt. Paying $4,000 to save $68/month is less valuable than eliminating credit card debt at 20%+.
  • Your emergency fund is underfunded. Liquidity security should take priority over interest rate optimization.

Frequently Asked Questions

What are mortgage discount points?
Mortgage discount points are upfront fees paid to your lender at closing to permanently reduce your interest rate. One point equals 1% of your loan amount. For example, on a $350,000 loan, one point costs $3,500. In exchange, the lender reduces your interest rate — typically by 0.20 to 0.25 percentage points per point purchased. The rate reduction varies by lender, loan type, and market conditions.
What is the break-even point for mortgage points?
The break-even point is the number of months it takes for the cumulative monthly savings (from the lower rate) to equal the upfront cost of the points. If one point costs $3,500 and saves $75/month, you break even after about 47 months (about 4 years). After that, every month you stay in the home is pure savings. If you sell or refinance before the break-even point, you lose money on the points.
Are mortgage points tax deductible?
Yes — discount points paid on a loan used to buy or improve your primary residence are generally deductible as mortgage interest in the year paid, provided you itemize deductions. Points paid on a refinance must typically be deducted over the life of the loan. Consult a tax advisor for your specific situation, as deductibility rules apply conditions that vary by taxpayer.
What is the difference between discount points and origination points?
Discount points are voluntarily purchased to buy down your interest rate — they are optional and directly reduce your rate. Origination points (also called origination fees) are charged by the lender for processing the loan and do not reduce your rate. Both are expressed as a percentage of the loan amount and paid at closing, but only discount points are the subject of break-even analysis. Always ask your lender to specify which points are discount vs. origination.
How much does one point typically reduce my rate?
The typical rate reduction per point is 0.20 to 0.25 percentage points, but this varies significantly by lender, loan product, and market conditions. Some lenders quote 0.125% per point during high-rate environments, while others may offer up to 0.375%. The rate reduction is specified in your Loan Estimate document. Always ask your lender for the specific rate/point tradeoff before calculating break-even.
Should I buy points or put more money toward the down payment?
If your down payment is below 20%, putting more money down eliminates PMI and improves your LTV ratio — this is almost always more valuable than buying points. Once you are at 20% or more down, buying points can be worthwhile if your break-even aligns with your expected stay. For most homebuyers, the opportunity to avoid PMI by increasing the down payment outweighs the rate reduction from points.
What happens to my points if I refinance?
If you refinance before breaking even, you forfeit the unrecovered portion of your points cost. The new loan starts fresh with a new rate — your previous points provide no benefit on the new loan. This is why break-even analysis is critical: if rates are likely to drop and you might refinance within a few years, buying points is risky.
Can I finance points into my loan?
Yes — some lenders allow you to roll the cost of points into the loan amount rather than paying cash at closing. However, this means you are paying interest on the cost of the points for the life of the loan, which significantly increases the actual cost of the rate reduction. Financing points generally makes break-even analysis worse, not better, compared to paying them in cash at closing.
Are points worth buying in a high-rate environment?
In a high-rate environment, points can be more valuable if you expect to stay long-term and rates are unlikely to drop soon. However, if you expect rates to decline — making refinancing likely within a few years — points are risky because refinancing wipes out the benefit. The current high-rate environment has increased short-term refinance risk, making longer break-even periods more concerning.
What is a negative point or rebate pricing?
A negative point (also called rebate pricing or a lender credit) works in reverse: the lender pays you a credit at closing in exchange for a higher interest rate. This is the opposite of buying points. Negative points are useful when you have limited cash for closing costs or plan to sell or refinance within a few years. The lender's credit covers some or all closing costs, but you pay a higher rate for the life of the loan.

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Sources & Methodology

This calculator is for informational purposes only and does not constitute financial or tax advice. Rate reduction per point varies by lender. Consult a licensed mortgage professional and tax advisor before purchasing discount points.