sfrcalc.comRun the numbers before you run the deal.
Strong in-migration, prices still well under the national median, and the property tax quirk every out-of-state investor needs to model before buying.
An interactive map of investor home-purchase share across 39 major U.S. metros, from Redfin's latest quarterly report.
What each metric actually measures, and why they can move in opposite directions on the same deal.
Setting realistic return targets by range, not by a single magic-number rule.
Why a 5% vacancy reserve is a long-run average, not what one real turnover actually costs.
Live in one unit, rent the others — the financing edge, and what happens after you move out.
Higher revenue doesn't always mean higher cash flow once real STR expenses are included.
Buy, rehab, rent, refinance — where the cash actually comes from, and where deals go wrong.
What the 30% margin is actually covering, and where a flat rule breaks down.
Rate, appraisal, and lending-standard risk in the gap between purchase and refinance.
Same spread, two different mechanics — what changes in cost, privacy, and which contracts even allow it.
How lenders size a loan off the property's own rent, with no personal income required.
Why cash flow, cash-on-cash return, and cap rate don't all move together when you toggle financing.
Why "renting is throwing money away" misses what the down payment could have earned invested instead.
A calculator is only as good as its inputs — where rent, price, repair, rate, tax, and insurance numbers actually come from.