United States version
How it works
Compare points using both monthly payments and the mortgage balance still owed at the planned exit date.
This is the United States planning view, with monetary inputs and outputs in USD. A currency label does not establish that a tax rate, construction price, coverage rule or legal limit has been verified locally. The inputs and limitations below describe the actual scope.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
7-
?principal=Mortgage principalMoney · Required · Default: 300,000
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?rateWithout=Annual nominal rate without pointsPercentage · Required · Default: 6.5
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?rateWith=Annual nominal rate with pointsPercentage · Required · Default: 6.25
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?points=Points as a percentage of principalPercentage · Required · Default: 1
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?extraFees=Other incremental up-front feesMoney · Required · Default: 0
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?termMonths=Loan term, monthsNumber · Required · Default: 360
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?holdingMonths=Expected months before sale/refinanceNumber · Required · Default: 84
Outputs
6-
pointsCostIncremental up-front costCurrency · Currency: USD
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paymentWithoutPayment without pointsCurrency · Currency: USD
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paymentWithPayment with pointsCurrency · Currency: USD
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monthlySavingMonthly payment savingCurrency · Currency: USD
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breakEvenSimple payment break-even, monthsNumber
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horizonSavingCash plus balance saving at exit horizonCurrency · Primary output · Currency: USD
Formula
exit-horizon benefit = payment savings to exit + difference in remaining balances − incremental up-front cost.
Calculations retain numeric precision internally. Displayed values are rounded for readability. Quantities that must be purchased as whole units are rounded up only where the formula explicitly requires it.
Read the inputs before calculating
- Mortgage principal: Enter the quantity described by the label.
- Annual nominal rate without points: Enter the quantity described by the label.
- Annual nominal rate with points: Enter the quantity described by the label.
- Points as a percentage of principal: Enter the quantity described by the label.
- Other incremental up-front fees: Enter the quantity described by the label.
- Loan term, months: Enter the quantity described by the label.
- Expected months before sale/refinance: Enter the quantity described by the label.
Reproducible worked example
The following is a fictional arithmetic example, not a local quote, a verified claimant or a market forecast. Its values are included so the formula can be checked. The form does not automatically confirm any verification checkbox.
| Input | Example value |
|---|---|
| Mortgage principal | 300,000 |
| Annual nominal rate without points | 6.5 |
| Annual nominal rate with points | 6.25 |
| Points as a percentage of principal | 1 |
| Other incremental up-front fees | 0 |
| Loan term, months | 360 |
| Expected months before sale/refinance | 84 |
| Output | Calculated result |
|---|---|
| Incremental up-front cost | USD 3,000 |
| Payment without points | USD 1,896.2041 |
| Payment with points | USD 1,847.1516 |
| Monthly payment saving | USD 49.0525 |
| Simple payment break-even, months | 61.159 |
| Cash plus balance saving at exit horizon | USD 2,268.3693 |
Interpreting a changed assumption
Start with one complete scenario and change only one input when diagnosing a difference. Recheck units, the period of every rate, whether an amount is recurring or one-off, and whether a cost is already included elsewhere. A larger calculated benefit is not evidence that an assumption is more likely to occur.
Limitations
- This uses entered contract assumptions. It is not lending approval, personalized financial advice or a substitute for the actual fee schedule and local credit/tax rules.
- Exit analysis assumes level monthly amortization and no sale/refinance penalty. Opportunity cost of the up-front cash, taxes and points deductibility are not assumed.
Frequently asked questions
What does this Mortgage Discount Points result represent?
Compare points using both monthly payments and the mortgage balance still owed at the planned exit date. It applies the displayed formula to your inputs; it does not infer omitted facts.
Are the starting amounts verified United States prices or legal rules?
No. Numeric defaults are illustrative unless an input or dated reference explicitly identifies a researched component. Currency is USD; local quotes, eligibility and unsupported rules must be entered and verified separately.
What must I check before relying on the result?
This uses entered contract assumptions. It is not lending approval, personalized financial advice or a substitute for the actual fee schedule and local credit/tax rules.
Can I compare or share different assumptions?
Change one assumption at a time and use the browser-local project or share controls. A shared URL contains the encoded input values; do not include information you do not wish to disclose.
Sources and reference scope
- CFPB loan-estimate explanation — retrieved 2026-09-24. US cost components; the general amortization formula is stated separately.
- CFPB comparing borrowing costs — retrieved 2026-09-24. Distinguishing interest, principal, fees and timing in a comparison.
These references support only their stated scope. They are not evidence that every local rule or price needed by the master expansion has been loaded.