Mortgage Points Calculator
How it Works
01Mortgage Setup
Loan amount, term, initial rate, and compounding
02Pick Two Options
Different point counts for Option I and Option II
03See Breakeven
Find how long until points savings pay for themselves
04Winner Selected
See which option delivers the best lifetime savings
How to Evaluate Mortgage Points
Mortgage points — also called "discount points" — let you pay money up-front at closing to reduce your interest rate for the life of the loan. Each point costs 1% of the loan amount and typically reduces the rate by about 0.25% (lender-specific). The core question every borrower faces: is paying points worth it?
This calculator compares two point scenarios side-by-side against no points — showing the monthly payment, total interest, breakeven period (when savings from the lower rate equal the up-front cost), and lifetime savings for each. It picks the winner for you: the option with the lowest all-in cost over the full loan term.
💡 The Breakeven Question
Points pay off only if you hold the loan longer than the breakeven period (typically 4-8 years). Refinancing or selling before breakeven wastes the up-front cost. Match your point buying strategy to how long you realistically expect to keep this specific mortgage.
Supports 30+ currencies, four compounding conventions (Yearly, Semi-annually Canada, Quarterly, Monthly UK&US), and lets you manually override the points-to-rate reduction ratio to match your specific lender's quote.
How to Use the Mortgage Points Calculator
The Points Math
Points Cost = Points × 1% × Loan Amount. 1 point on a $250K loan = $2,500. 3 points = $7,500. Paid in cash at closing, on top of your down payment. This is the investment that buys the lower rate.
New Rate ≈ Initial Rate − (Points × 0.25%). Standard convention: 1 point buys you 0.25% off the rate. So 3 points on a 6% initial rate gives 5.25%. Lenders can offer different ratios (some offer 0.125%/point, others 0.375%) — verify with your lender and use manual mode to override.
Monthly Savings = Baseline Monthly − New Monthly. Breakeven (months) = Points Cost ÷ Monthly Savings. On a typical 30-year loan, 1 point often breaks even in 60-80 months (5-7 years). Beyond breakeven, every month is pure savings. Before breakeven, you've paid more than you've saved.
Lifetime Savings = Baseline Total Cost − Option Total Cost, where Total Cost = (Monthly × n) + Points Cost. If positive, the option beats the baseline over the full loan. If negative, it's worse. This calculator picks the option with the largest positive lifetime savings as the recommended choice.
Example: $250K, 30-year Loan at 3.25%
Three scenarios for a $250,000 mortgage, 30-year term, 3.25% initial rate (monthly compounding):
| Scenario | Rate | Monthly | Points Cost | Breakeven | Lifetime Cost |
|---|---|---|---|---|---|
| No points | 3.250% | $1,088.02 | $0 | — | $391,687 |
| Option I: 1 point | 3.000% | $1,054.01 | $2,500 | 74 months | $381,944 |
| Option II: 3 points (WINNER) | 2.500% | $987.80 | $7,500 | 75 months | $363,107 |
Option II delivers $28,580 of lifetime savings over no points, breaking even in about 6 years. The 3-point buydown is the winner for anyone planning to keep the mortgage for 7+ years. Option I saves about $9,743 lifetime — still positive, just smaller.
Who Uses a Mortgage Points Calculator?
Technical Reference
Key Takeaways
Buying mortgage points is a time-based investment: you pay money up-front to save money every month, and the math only works if you hold the loan long enough to reach breakeven. The breakeven period for typical point buydowns is 4-8 years — so points are excellent for long-term holds and wasteful for short-term ones.
Three key rules: (1) Match points to your realistic holding period — don't buy points if you'll refinance or sell within 5 years. (2) Verify the lender's points-to-rate ratio — the standard 0.25%/point is a guideline, not a guarantee. (3) Factor in opportunity cost — money spent on points could otherwise go into investments, emergency funds, or other uses.
Related tools: Mortgage Rate Calculator, Mortgage Interest Calculator, Mortgage Extra Payments. More in the Math & Science Calculators Collection.
Frequently Asked Questions
What are mortgage points?
Discount points (usually just called "points") are an up-front fee paid at closing to reduce your mortgage interest rate. Each point costs 1% of the loan amount and typically reduces the rate by ~0.25%. On a $300K loan, 2 points would cost $6,000 and might reduce a 6% rate to 5.5%. Points are separate from other closing costs like origination fees.
How much does 1 point reduce my interest rate?
Typically 0.25% (1/4 of a percentage point). But this varies by lender and market conditions — some lenders offer 0.125% per point, others 0.375%. Always verify with your specific lender. This calculator uses 0.25% by default but lets you override via the manual checkbox.
Are mortgage points worth it?
Worth it if you'll keep the loan past the breakeven period. Rule of thumb:
- Less than 5 years: Skip points — unlikely to reach breakeven
- 5-8 years: Marginal — breakeven right around typical mortgage-holding periods
- 8+ years: Usually worth it — points pay off and produce meaningful lifetime savings
- Rental / long-term hold: Aggressive points often optimal
What is the breakeven period?
The number of months until your cumulative monthly savings (from the lower rate) equal the up-front cost of the points. Formula: Breakeven = Points Cost ÷ Monthly Savings vs baseline. On a $250K loan with 1 point costing $2,500 and monthly savings of $34, breakeven = 2500 ÷ 34 ≈ 74 months (just over 6 years).
Are mortgage points tax-deductible?
In some jurisdictions, yes. In the US, points paid on a primary residence purchase can often be deducted in the year paid (IRS Publication 936). Refinance points usually must be deducted over the loan term. Rules are complex and change — consult a tax professional for your specific situation. This calculator does not model tax effects.
Should I buy points or make a bigger down payment?
Depends on the math. Larger down payment → smaller loan → less total interest (and possibly better rate tier). Points → lower rate on current loan → less interest per dollar borrowed. Run both scenarios: compare the total interest saved per dollar spent. In competitive markets with tight down payment requirements, down payment usually wins; in stable markets with a large down payment already, points can be the better use of marginal dollars.
Can I negotiate the points-to-rate ratio?
Sometimes — lenders have some flexibility, especially for loans with strong credit profiles or at lender margins. Shop multiple lenders: one may offer 0.5% rate reduction per point while another offers only 0.2%. Getting multiple quotes often reveals wide variation. Use this calculator to compare each lender's offer.
Author Spotlight
The ToolsACE Team
Our specialized research and development team at ToolsACE brings together decades of collective experience in financial engineering, data analytics, and high-performance software development.
Disclaimer
The results provided by this tool are for informational purposes only and do not constitute financial, tax, legal, or investment advice. Always seek the advice of a qualified financial advisor, accountant, or legal professional regarding your specific situation.