Mortgage Points Break-Even Calculator

Mortgage discount points are an upfront fee paid at closing to permanently reduce your interest rate.

Each point costs exactly 1% of your loan amount. In exchange, your lender reduces your interest rate — typically by 0.25% per point, though the exact reduction varies by lender and market conditions.

Example on a $360,000 loan:

• 1 point costs $3,600 (1% × $360,000)
• Rate drops from 7.00% → 6.75%
• Monthly payment drops from $2,395 → $2,328 = $67/month savings
• Break-even: $3,600 ÷ $67 = 54 months (4.5 years)

After month 54, you're saving $67 every single month for the remaining life of the loan. Over 30 years, that's $24,120 in cumulative savings minus the $3,600 cost = $20,520 net gain.

Important distinction: Discount points differ from origination points. Origination points are lender fees and don't reduce your rate. Always verify whether points on your Loan Estimate are discount points (rate reduction) or lender fees.

The break-even formula is simple: Upfront cost ÷ Monthly savings = Break-even months

Step-by-step calculation:

• Step 1: Calculate the cost — (points × loan amount). Example: 1.5 points × $400,000 = $6,000
• Step 2: Calculate monthly payment without points — standard mortgage formula at base rate
• Step 3: Calculate monthly payment with points — same formula at reduced rate
• Step 4: Monthly savings = payment without − payment with
• Step 5: Break-even = upfront cost ÷ monthly savings

Example: $6,000 cost ÷ $100/month savings = 60 months (5 years)

For a more sophisticated analysis, account for the opportunity cost of the upfront cash — if you could invest $6,000 at 5% instead, the true break-even takes longer than the simple calculation suggests. This calculator uses the simple break-even for clarity.

Points are worth it only if you keep the loan longer than the break-even period — and that's the crux of the decision.

Points tend to be worth it when:

• You're buying a long-term home (primary residence you plan to stay in 10+ years)
• Your break-even is under 5 years — a short payback for a long holding period
• Interest rates are elevated and a near-term refinance seems unlikely
• You have cash surplus beyond your emergency fund and 20% down payment
• You're buying an investment property you'll hold for decades

Points are usually not worth it when:

• You're buying a starter home and expect to move within 5–7 years
• Rates are at a cyclical high — you might refinance in 2–3 years
• You'd be depleting savings to pay for points
• Your down payment is under 20% — extra cash often better eliminates PMI
• The break-even is more than 7–8 years

The honest answer: For buyers who genuinely stay in their home 10+ years and don't refinance, points are mathematically almost always worth it. The risk is behavioral — we often overestimate how long we'll stay.

These are two very different fees that can look the same on a Loan Estimate. Understanding the difference is critical.

How to tell them apart: On your Loan Estimate (Section A), the lender must separately disclose origination charges vs. points used to reduce rate. Look for "Points" under "Loan Costs" and read the description carefully. If there's no corresponding rate reduction shown, they may be origination fees, not discount points.

Always ask your loan officer: "What is my rate with zero points, and what rate do I get for each point I buy?"

The most common rule of thumb is 0.25% per point — but the actual reduction varies and must be confirmed with your specific lender.

Typical ranges in the market:

• 0.125%: Common when buying fractional points or when lender margins are tight
• 0.25%: The standard rule of thumb — most often quoted
• 0.375%: Sometimes available in certain market conditions

Why this matters so much: The rate reduction per point directly affects your break-even. With 0.125%/point instead of 0.25%, your monthly savings are half as large — doubling your break-even period. A "good deal" at 0.375%/point could be excellent value.

How to get the real number:

• Ask your lender for a rate sheet showing rate vs. points options
• Loan Estimate Section A will show points charged and the corresponding rate
• Get the same information from 2–3 lenders — competition often improves the deal

Generally yes for home purchase — but the rules depend on whether it's a purchase or refinance, and whether you itemize deductions.

Home purchase (most favorable treatment):

• Discount points paid on a home purchase mortgage are typically deductible in the year paid
• You must itemize deductions (not take the standard deduction)
• Points must be a standard practice in your area and not excessive
• The loan must be for your primary residence

Refinance (less favorable):

• Points paid on a refinance must typically be deducted over the life of the loan
• Example: $4,000 in points on a 30-year refinance = $133/year deduction
• If you refinance again before the loan ends, you can deduct the remaining undeducted balance in that year

Impact on break-even: If you're in the 22% tax bracket and paid $4,000 in deductible points, your effective after-tax cost is $4,000 × (1 − 0.22) = $3,120, which improves your break-even. Consult a tax professional to calculate your actual benefit.

If your down payment is under 20%, putting extra cash toward a larger down payment is almost always the better move — primarily because eliminating PMI delivers immediate, certain savings.

Scenario: You have an extra $5,000 — points vs. down payment

Option A — Buy 1+ points:

• Reduce your rate by ~0.25%, saving ~$56/month on a $360K loan
• Break-even: 89 months (~7.4 years)
• Long-term benefit: real, but requires staying put

Option B — Add to down payment (if near 20%):

• Eliminate PMI at ~0.75%/year = $225/month immediate savings
• Break-even: effectively immediate
• The savings are guaranteed and start day one

The verdict: If you're close to 20% down, use the cash to eliminate PMI first — it beats points in almost every scenario. If you're already at 20%+ down and have surplus cash, then run the points break-even math to decide.

You lose the unrecouped portion of your points — they are non-refundable. This is the biggest risk of buying points.

Example scenario:

• Paid $4,000 for 1 point at closing
• Monthly savings: $67/month
• Break-even: 60 months
• Refinance at month 36: cumulative savings = 36 × $67 = $2,412
• Net loss: $4,000 − $2,412 = $1,588

When refinance risk is highest:

• Current rates are historically high — the Fed is expected to cut rates
• Your credit score is improving — you may qualify for better terms in 2–3 years
• You're buying an adjustable-rate mortgage (ARM) — refinancing at ARM adjustment is common

The rule of thumb: Don't buy points if there's more than a 30–40% chance you'll refinance before break-even. In a high-rate environment where "rates are expected to drop," that probability can be very high — meaning points are particularly risky in exactly the scenario where people are most tempted to buy them (high rates = bigger monthly savings = shorter break-even looks appealing).