The 1% Rule in Real Estate: Quick Rental Property Screening

The 1% rule is the quickest way to screen rental properties. In less than 10 seconds, you can determine if a property is worth analyzing further — or if you should move on. It's not a substitute for full analysis, but it's a powerful starting filter.

What Is the 1% Rule?

The 1% rule states that the monthly rent on an investment property should be at least 1% of the purchase price. If it is, the property is likely to generate positive cash flow. If it isn't, it probably won't — at least not without favorable financing or low expenses.

The Formula

If the result is 1.0% or higher, the property passes. If it's lower, it doesn't. Simple as that.

You can also use it in reverse to set a maximum purchase price:

Examples

Example 1: $250,000 Property Renting for $2,800/mo

• 1% test: $2,800 / $250,000 = 1.12%
• Passes the 1% rule. Worth analyzing further.

Example 2: $500,000 Property Renting for $3,200/mo

• 1% test: $3,200 / $500,000 = 0.64%
• Fails the 1% rule. Likely negative cash flow unless expenses are unusually low.

Example 3: Setting a Max Price

• Expected rent: $2,000/mo
• Max price per 1% rule: $2,000 x 100 = $200,000

When to Use the 1% Rule

The 1% rule works best as a first-pass filter:

• Scanning dozens of listings quickly
• Setting search price filters based on market rents
• Quick back-of-napkin analysis before running full numbers
• Comparing different markets at a high level

It should never be the only metric you use to make an investment decision. Always follow up with a full analysis including cap rate, cash-on-cash return, and DSCR.

Limitations

The 1% rule doesn't account for:

• Property taxes: A property in Texas (2-3% tax rate) vs. Hawaii (0.3%) will have wildly different cash flow at the same 1% ratio
• Insurance costs: Florida and Louisiana have much higher insurance than other states
• Property condition: A property needing $50K in repairs might meet the 1% rule on paper but not after renovation costs
• Appreciation potential: Some lower-ratio markets offer significant price appreciation that the 1% rule ignores
• Financing terms: Interest rates dramatically affect whether a property cash flows, regardless of the 1% ratio

What About the 2% Rule?

The 2% rule is a stricter version — monthly rent should equal 2% of the purchase price. While this was achievable in some markets historically, it's extremely rare in 2026. Properties meeting the 2% rule today are typically in:

• Very low-cost markets (sub-$100K properties)
• High-crime or low-demand areas
• Properties requiring significant management effort

For most investors, the 1% rule is a more realistic benchmark. Even finding properties at 0.8-0.9% can work well with good financing and low expenses.

Beyond Quick Screening

The 1% rule gets you in the door, but serious analysis requires more. Here's the path:

1. Screen with the 1% rule — filter out obvious non-starters
2. Calculate cap rate — understand the property's unlevered return
3. Run cash-on-cash return — see your actual return with financing
4. Check DSCR — confirm the deal is financeable
5. Do a full rental property analysis — account for all expenses and assumptions