Mortgage Points Calculator

Mortgage discount points, frequently referred to simply as discount points or buydown points, are optional upfront fees paid directly to a lender at closing in exchange for a permanent reduction in your mortgage interest rate. One discount point costs exactly 1 percent of your funded loan amount (for example, $3,200 on a $320,000 mortgage). In return, lenders typically lower your note rate by 0.25 percent (25 basis points). By paying interest upfront in cash, you reduce your ongoing monthly principal and interest payment for the entire remaining amortization term.

The break-even point is the exact number of months required for cumulative monthly payment reductions to equal the upfront cash outlay paid for points at closing. To calculate your break-even horizon, divide the total dollar cost of the points by your monthly principal and interest savings. For example, if purchasing 1 point on a $320,000 mortgage costs $3,200 upfront and reduces your monthly payment by $52.90, you divide $3,200 by $52.90, yielding 60.5 months (rounded up to 61 months, or approximately 5.1 years). If you remain in the property past month 61 without refinancing, the points generate pure net financial savings.

While both fees are settled at closing and priced as a percentage of the loan principal, they serve fundamentally different functions. Discount points are optional prepaid finance charges paid specifically to buy down your contract interest rate. In contrast, origination points (or loan origination fees) are administrative charges assessed by lenders and brokers to cover the operational costs of processing, underwriting, and closing the mortgage. Origination points do not lower your interest rate.

Yes, under IRS Publication 936 (Home Mortgage Interest Deduction), mortgage discount points paid on a loan to purchase or construct your primary residence are generally fully deductible in the calendar year paid, provided you itemize deductions on Schedule A and meet specific IRS criteria (including paying points from unborrowed funds and adhering to established local business practices). For a refinanced mortgage, however, the IRS requires you to amortize and deduct points ratably over the life of the loan (such as 1/360th per month on a 30-year term), unless a portion of the refinance proceeds was used for substantial home improvements.

Yes. Lenders maintain proprietary rate sheets that determine pricing concessions for discount points. While 0.25 percent per point is an industry benchmark, actual reductions fluctuate between 0.125 percent and 0.375 percent depending on secondary mortgage market liquidity, Fannie Mae loan-level price adjustments (LLPAs), and the lender's profit margins. Borrowers should request Loan Estimates from multiple competitive lenders to compare which institution offers the most advantageous rate reduction per dollar invested.

Negative points, officially disclosed as lender credits on Box J of the CFPB Loan Estimate, represent the exact inverse of discount points. Instead of paying cash upfront to reduce your rate, you accept an interest rate that is higher than the zero-point par rate. In exchange, the lender provides an upfront cash rebate at closing that offsets your closing costs, appraisal fees, or title charges. Lender credits are ideal for homebuyers with limited liquid reserves or borrowers planning to relocate within two to three years.

Yes, if you refinance prior to reaching your break-even horizon. When you replace your existing mortgage with a new loan, the original note is paid in full, terminating the lower interest rate you purchased. Any unrecovered upfront cash spent on points is permanently lost. However, from a tax perspective, IRS regulations allow you to deduct any remaining unamortized points from a prior refinance in full during the tax year the original mortgage is extinguished.

Yes. Under the Dodd-Frank Act and CFPB Regulation Z (12 CFR § 1026.43(e)(3)), Qualified Mortgages (QMs) must comply with a strict 3 percent cap on total points and fees for loan amounts of $100,000 or greater. While bona fide discount points meeting specific statutory requirements can be excluded from this calculation under certain conditions, lenders cannot impose predatory upfront fees that exceed federal high-cost mortgage thresholds.