The 1% rule in real estate is a quick screening tool that says a rental property's monthly rent should be at least 1% of its total purchase price, including any rehab. It's not a guarantee of profit, just a fast way to rule properties in or out before doing a full analysis.
What the 1% Rule Means
The 1% rule is a back-of-envelope test investors use to quickly screen rental properties before spending time on a full analysis. The idea is simple: take the total amount you'd have into the property (purchase price plus any immediate rehab) and compare it to the monthly rent it could realistically command. If the rent is at or above 1% of that total cost, the deal clears the first hurdle and may be worth a closer look.
It's a filter, not a formula for profit. A property can pass the 1% rule and still be a poor investment once you factor in taxes, insurance, vacancy, maintenance, and financing costs. Likewise, a property that misses the 1% rule by a little isn't automatically a bad deal, especially in markets where appreciation or other factors matter more than pure cash flow.
How to Calculate the 1% Rule Step by Step
Calculating the 1% rule takes three steps.
- •Add up the total cost of the property: purchase price plus any rehab or repair costs needed before it's rent-ready.
- •Estimate the realistic monthly rent for the property in its finished condition, based on comparable rentals in the area.
- •Divide the monthly rent by the total cost. If the result is 0.01 (1%) or higher, the property passes the 1% rule.
| Scenario | Monthly rent as % of total cost | Passes 1% rule? |
|---|---|---|
| Rent is below 1% of cost | Less than 1% | No |
| Rent equals 1% of cost | Exactly 1% | Yes, at the line |
| Rent exceeds 1% of cost | Above 1% | Yes, comfortably |
1% Rule Variations and Related Rules of Thumb
The 1% rule has stricter and looser cousins that investors use depending on their goals and risk tolerance. A 1.25% rule sets a higher bar, useful in markets where investors want more cushion for expenses or financing costs. A 2% rule is an aggressive screen often associated with lower-priced properties in cash-flow-heavy markets, though properties that clear it are harder to find and may carry more risk around condition or turnover.
These percentage-of-cost rules are cousins of other screening tools, not substitutes for them. The 50% rule estimates that operating expenses will run close to half of collected rent over time, which helps sanity-check whether a property that passes the 1% rule still leaves room for genuine cash flow. On the flip side, house flippers use a related approach called the max offer rule (sometimes a 70% or 90% rule depending on strategy) to cap what they'll pay based on a property's after-repair value.
| Rule | What it screens | Typical use |
|---|---|---|
| 1% rule | Rent vs. total cost | Quick rental screening |
| 1.25% rule | Rent vs. total cost, stricter | Rentals in pricier or riskier markets |
| 2% rule | Rent vs. total cost, aggressive | High cash-flow, often lower-cost markets |
| 50% rule | Expenses vs. rent | Sanity check on operating costs |
| Max offer rule (70%/90%) | Offer vs. after-repair value | Flip or rehab-and-resell deals |
Why the 1% Rule Isn't Enough on Its Own
The 1% rule leaves out almost everything that actually determines whether a rental makes money: property taxes, insurance, vacancy, maintenance reserves, property management, and financing terms all vary widely by market and property, and none of them show up in a simple percentage. Two properties that both pass the 1% rule can produce very different results once real expenses and debt service are factored in.
It also says nothing about a property's condition, location fundamentals, or how rent might change over time. A full analysis typically layers in metrics like cash flow, cap rate, and debt service coverage ratio (DSCR) to get a realistic picture, and for flips, after-repair value (ARV) is central to deciding what to pay. The 1% rule is a starting filter, not a stand-in for that work.
Using the 1% Rule in Practice
Treat the 1% rule as a first pass, not a final answer. If a property clears it, move on to estimating real operating expenses, checking comparable rents carefully, and running the numbers on cash flow and returns before making an offer. If it doesn't clear the 1% rule, that's a signal to dig into why, whether the asking price is too high, rents in the area are genuinely lower, or the market leans more toward appreciation than cash flow.
For a deeper, step-by-step walkthrough of what comes after the screening stage, see how to analyze a rental property in 5 steps. The 1% rule simply narrows the list of properties worth that closer look.
Frequently asked questions
Does the 1% rule still work in today's market?
It still works as a quick screening tool, but in many markets with higher property prices relative to rents, fewer properties will clear 1%. Investors in those markets often adjust expectations or focus more heavily on other metrics like cash flow and cap rate.
What's a good alternative to the 1% rule?
There's no single replacement, but running a full cash flow projection, calculating cap rate, and checking debt service coverage ratio (DSCR) together give a far more complete picture than any single percentage rule.
Does the 1% rule apply to Section 8 rentals?
The same math applies, but Section 8 rent potential is tied to the local payment standard rather than open-market rent alone. It's worth checking fair market rent and payment standard data for the area before using it in the calculation.
Is the 2% rule realistic to find?
Properties that clear a 2% rule exist but are typically concentrated in specific lower-cost markets and price ranges, and they often come with trade-offs in condition, tenant turnover, or market appreciation potential that deserve closer scrutiny.
How this post was made: the figures above come from OnOffDeals’ own market-scan data (refreshed roughly monthly); the draft was written with AI assistance and checked against that data before publishing. Everything here is an estimate to help screen deals, not financial advice.
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