1% Rule for Rental Property: Formula, Examples, and When It Fails
Learn how the 1% rule screens rental properties, how to calculate the rent-to-price ratio, when the rule fails, and what to check after it passes.
Last reviewed: 2026 · 7 min read
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What the 1% Rule Says
The 1% rule is a quick screening test: a rental property should rent for at least 1% of its purchase price per month. A $250,000 property would need roughly $2,500 in monthly rent to pass.
It is not a profitability calculation. It is a filter that helps investors decide which listings deserve a full cash flow analysis and which can be skipped quickly.
Formula and Quick Examples
Rent-to-Price Ratio = Monthly Rent / (Purchase Price + Upfront Repairs) x 100
Include upfront repair costs in the price, not just the sticker price. A $180,000 property needing $20,000 of work has a $200,000 basis, so it needs $2,000 of monthly rent to pass, not $1,800.
A property renting for $1,900 on a $200,000 basis has a 0.95% ratio. That is a near miss, which usually means the deal depends heavily on taxes, insurance, and financing terms.
Why the 1% Rule Fails in Many Markets
- High-price coastal and urban markets rarely pass, yet some still perform through appreciation and rent growth.
- Low-price markets can pass at 1.5% or higher and still lose money due to high taxes, insurance, vacancy, or repairs.
- The rule ignores interest rates, so a deal that passed at a 4% rate may fail badly at 7%.
- Property taxes vary enormously by state, and the rule treats a low-tax and high-tax property identically.
- Short-term rentals, house hacks, and multi-unit properties have income structures the rule was never designed for.
What About the 2% Rule?
The 2% rule is the same screen with a stricter threshold, historically used for lower-priced properties in cash flow markets. Properties that pass 2% today often carry higher tenant turnover, repair, and neighborhood risk, so the higher ratio compensates for higher operating uncertainty rather than signaling a bargain.
What to Do After a Property Passes
Passing the 1% rule earns a property a real analysis, nothing more. Run the full numbers: market rent, vacancy allowance, taxes, insurance, repairs, management, CapEx reserves, and the actual mortgage payment at current rates.
A full cash flow calculation frequently reverses the screening result in both directions. Use the rule to prioritize your time, and use NOI, cash flow, cash-on-cash return, and DSCR to make the decision.
Frequently Asked Questions
Is the 1% rule still realistic?
In many markets, few listed properties pass the 1% rule at asking price. It remains useful as a comparative screen, but failing the rule does not automatically make a property a bad investment, and passing does not guarantee cash flow.
Does the 1% rule account for expenses or financing?
No. It only compares gross rent to price. Taxes, insurance, vacancy, repairs, management, and mortgage costs are all excluded, which is why a full cash flow analysis must follow.
Should I include repair costs in the 1% rule?
Yes. Add estimated upfront repair costs to the purchase price before applying the rule, so the ratio reflects your real cost basis.
Educational Disclaimer
All calculations are estimates for educational and planning purposes only. PropertyFlowTools.com does not provide financial, tax, legal, lending, or investment advice. Verify calculations and consult qualified professionals before making property or financing decisions.