Mortgage Points Buydown Break-Even

Is paying upfront points worth it? The break-even depends on how long you stay, and what that cash would earn if invested instead.

$
%
%
% of loan
yrs
%
Buy the points?Yes, net positive
Points Cost
$3,500
1 point × 1% of loan
Monthly Payment Savings
$87.01
per month with lower rate
Break-Even
Month 41
3yr 5mo
Net Benefit if You Stay
$2,346
after 84 months (incl. opportunity cost)
Net Benefit at Various Horizons
Months in HomeCumulative SavingsOpportunity CostNet BenefitWorth it?
12 mo (1yr)$1,044$179-$2,635✗ No
24 mo (2yr)$2,088$367-$1,779✗ No
36 mo (3yr)$3,132$565-$933✗ No
48 mo (4yr)$4,177$773-$97✗ No
60 mo (5yr)$5,221$992+$729✓ Yes
84 mo (7yr)$7,309$1,463+$2,346✓ Yes
120 mo (10yr)$10,442$2,265+$4,677✓ Yes
180 mo (15yr)$15,662$3,898+$8,264✓ Yes
Points are a bet on staying in the home long enough to recoup the upfront cost. If you sell or refinance before break-even, you lose the points. The opportunity cost of investing those dollars makes break-even later than the simple payback period suggests.