Brisk – Buy vs. Rent/Sell vs. Keep calculator tracking opportunity cost

Show HN: Brisk – Buy vs. Rent/Sell vs. Keep calculator tracking opportunity cost

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Most buy vs rent calculators compare your mortgage payment to rent, factor in appreciation, and call it a day. But they ignore what happens to your downpayment if you don't buy—that $200K+ could go into index funds instead. S&P 500 has averaged ~14.5% over the last 15 years vs ~4% for housing. That difference compounds significantly.And almost no calculators address the sell vs keep question: if you already own a property, should you sell and invest the proceeds, or hold onto it?So I built a calculator that models both scenarios month-by-month.Buy vs RentFor buying: Full amortization schedule, mortgage interest deduction, property taxes, insurance, maintenance—all inflating annually except t

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Website: manishrjain.com/brisk