The 1% and 2% rules: quick screens, not verdicts

The 1% rule is the most repeated shorthand in rental investing: monthly rent should be at least 1% of the purchase price. A $200,000 house should rent for at least $2,000/month to pass. It's a screening tool — a way to glance at fifty listings and quickly discard the obviously unworkable ones — not a formula that tells you a property is a good buy. Used for what it's for, it saves enormous time. Used as a verdict, it leads people straight into bad deals and past good ones.

What the 1% rule actually does

The rule is a proxy for one question: is there any chance this property cash-flows? Because a rough all-in mortgage-plus-expenses cost on a financed property often lands near 1% of the price per month, a property renting at 1% is in the neighborhood where cash flow is possible. One that rents at 0.5% almost certainly loses money every month with a mortgage. So the rule is a fast first filter: below roughly 0.7-0.8%, you can usually skip the property without deeper analysis; at 1% or above, it's worth pulling out the real spreadsheet.

What it misses

• It ignores expenses entirely: two properties at exactly 1% can have wildly different taxes, insurance, HOA fees, and repair needs. A high-tax property at 1% can lose money while a low-tax one thrives.
• It ignores appreciation: a 0.7% property in a fast-growing market can outperform a 1% property in a declining one over a decade, even while cash-flowing less.
• It ignores condition: a property that passes the rule but needs a $30,000 roof and rehab isn't the deal the ratio suggests.
• It's blind to interest rates: the rule of thumb was coined in lower-rate eras. When rates are high, even 1% properties may not cash-flow, and the useful threshold effectively rises.

The 2% rule: a red flag more than a target

The 2% rule — rent at 2% of price, so a $100,000 house renting for $2,000 — gets talked about as an aspirational target. In today's market it's better understood as a warning sign. Properties that hit 2% almost always sit in the lowest-price, highest-risk tiers: distressed neighborhoods with high turnover, expensive collections, brutal maintenance-to-rent ratios, and near-zero appreciation. The spectacular ratio is the market's way of pricing in problems you can't see from a listing. When a deal looks dramatically better than everything around it on paper, the ratio is usually compensating for something real — which is why experienced investors often make more money at a durable 0.9-1.1% than chasing a fragile 2%.

The bottom line

Use the 1% rule for exactly what it's good at: a two-second filter to decide which listings deserve real analysis. Anything well below it usually won't cash-flow with financing; anything at or above it earns a full spreadsheet with real taxes, insurance, vacancy, capex, and today's rates. Treat the 2% rule as a caution flag, not a goal — spectacular ratios usually signal spectacular risk. And never confuse passing the screen with being a good deal: the ratio opens the door, but only a complete, conservative analysis tells you whether to walk through it.