What is GRM?
Gross Rent Multiplier (GRM) is a simple way to compare rental property values based on their purchase price and gross annual rental income.
Formula:
GRM = Property Price ÷ Annual Gross Rent
Why It Matters
Quick Screening: GRM gives investors a fast, apples-to-apples way to spot potential deals.
Market Comparisons: Helps benchmark rents vs. pricing in different Phoenix neighborhoods.
Starting Point Only: GRM doesn’t include expenses, so it shouldn’t be your final decision metric.
Example
A Phoenix rental property priced at $400,000 generates $36,000/year in gross rent.
GRM = 400,000 ÷ 36,000 = 11.1
Compare that to other properties in Phoenix — if similar homes have GRMs of 13 or 14, this one may offer stronger income potential relative to price.
What’s a “Good” GRM?
In the Phoenix area, GRMs often fall between 10–14.
Lower GRM = stronger gross income relative to purchase price (potentially better cash flow).
Higher GRM = higher price relative to rent (often found in premium neighborhoods or new builds).
Final Thoughts
GRM is a great first filter — but never buy based on GRM alone. Use it to identify promising properties, then dig deeper into NOI, Cap Rate, and Cash-on-Cash Return.
As your Phoenix investor-friendly agent, I’ll help you use GRM alongside the full financial picture to make confident investment decisions.

