Calculator · Educational Only
Rent vs Buy — 20, 30, 40-Year Wealth Math
A straight-line projection of net wealth if you rent vs buy. No Monte Carlo simulation, no assumptions about your next raise — just transparent math you can tweak with sliders.
Not an underwriter. Heath Watte is a licensed REALTOR®, not a lender. This tool gives you a straight-line estimate of wealth outcomes based on your inputs. It does not constitute a mortgage pre-approval, affordability determination, investment advice, or tax advice. Actual loan qualification is determined by a licensed lender. Consult a tax professional about the deductibility of mortgage interest and property taxes in your situation. Full disclaimer.
$550,000
6.500%
5.0%
$2,400
3.0%
3.0%
7.0%
1.05%
$175
1.0%
Monthly Payment (Buy)
$0
Principal & interest + tax + insurance
30-Year Wealth Delta (Buy − Rent)
$0
Buy net worth minus Rent-and-Invest net worth at year 30.
Year 20
$0
Year 30
$0
Year 40
$0