The 1% Rule and 50% Rule for Rentals
The 1% rule and the 50% rule are the two fastest gut-checks in rental investing. Every landlord quotes them, and for good reason — together they tell you in about ten seconds whether a deal is worth a closer look. But they're blunt instruments, and in today's market they fail more often than they used to. Here's how to use them without getting burned.
The 1% rule: is the rent high enough?
The 1% rule says a rental's monthly rent should be at least 1% of the total purchase price — so a $200,000 property should rent for at least $2,000/mo (Finexplained). It's a screen for whether rent is high enough relative to price to have any shot at cash flow. Clear it comfortably and the deal is worth analyzing; miss it badly and you can usually move on. Check any property with the 1% & 50% rule calculator.
The 50% rule: what's left after expenses?
The 50% rule assumes that, over time, operating costs — taxes, insurance, maintenance, vacancy, and management — eat roughly half of your gross rent, before the mortgage. So a property renting for $2,000/mo has about $1,000 left to cover the loan and produce profit (Finexplained). It's a reality check against the rookie mistake of judging a deal on rent minus mortgage alone.
Using them together
The two rules answer different questions, which is why they're strongest as a pair:
- 1% rule → is the price-to-rent ratio reasonable?
- 50% rule → does anything survive the expenses to pay the mortgage?
Pass both and you likely have real cash flow. Fail both and it's probably a dog. Pass one but not the other and it's a maybe that demands a full underwrite.
Why they fail in 2026
Both rules were born in an era of cheaper homes and lower rates. In high-price, low-rent markets — much of the West Coast, the Northeast, and hot Sun Belt metros — almost nothing hits the 1% rule anymore; a $600,000 house rarely rents for $6,000. And the 50% rule can understate expenses on older properties or overstate them on newer ones. Rising insurance and property taxes in 2026 have pushed real expense ratios above 50% in many areas.
That doesn't make the rules useless — it means you treat them as filters, not verdicts. Passing is encouraging; failing isn't always disqualifying, especially in appreciation-focused markets where the play is long-term equity, not day-one cash flow.
The bottom line
Use the 1% and 50% rules to triage a stack of listings fast — then confirm the survivors with real numbers. A deal that clears both screens still needs a full cash-on-cash analysis with actual taxes, insurance, and financing before you commit. Start with the ten-second check on the 1% & 50% rule calculator.
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