What Is a Good Gross Rent Multiplier? (Updated 2026)
A good gross rent multiplier is roughly 4 to 12, depending on your market. Lower is better. Under 7 usually means strong income relative to price; over 12 usually means you're buying appreciation rather than cash flow.
The formula is simple: purchase price divided by annual gross rent
A $240,000 house renting for $1,600 a month collects $19,200 a year, so its GRM is 12.5 ($240,000/$19,200 = 12.5)
That's the answer. Now here's why the number is less useful than it looks, especially if you already own the place.
What GRM is actually measuring
GRM is a speed test. It's how you compare six listings in ten minutes without opening a spreadsheet.
What it deliberately ignores is everything between gross rent and money in your pocket. Taxes. Insurance. Maintenance. Vacancy. Management. Whether your name is on the water bill.
Two houses can carry an identical GRM of 9 and one of them makes money while the other bleeds. The rule can't see the difference, because the rule only looks at the top line.
That's not a flaw…
It's the trade you make for a calculation that takes five seconds.
What counts as good, by market
There's no universal number. Rough brackets I use are:
4 to 7. Strong income relative to price. Common in lower-cost markets, older housing stock, and small multifamily. Usually comes with higher operating expenses, so the cash flow isn't as good as the GRM implies.
8 to 12. Typical for single-family rentals in most of the country. This is where most of the properties I manage sit.
13 and up. You're paying for something other than rent. Appreciation, location, a school district, or a market that's priced ahead of its rents. Can absolutely be the right call. Just know that's the bet you're making.
GRM vs. Cap Rate
People ask which to use. They answer different questions.
GRM uses gross rent and ignores expenses. Cap rate uses net operating income, so it accounts for them, but not for your mortgage.
So GRM is faster and cruder. Cap rate is slower and closer to the truth. If you have real expense numbers, use cap rate. If you're scanning listings on a Saturday, GRM is fine.
Neither one tells you what you actually want to know once you own the property, which is the next section.
The problem with "gross rent" on a property you own
Here's the part nobody writes about, and it's the reason I bothered writing this article.
GRM assumes gross rent is a fact. On a rental you already own, it's a decision.
Your advertised rent isn't your gross income.
When we audited our own book this month, add-on revenue came to $616 per door per year that never appears in the advertised rent. Utility and HOA rebills, pet rent, forfeited deposits, tenant chargebacks. On a $1,600 unit that's a little over 3% of annual rent that a GRM calculation would miss entirely.
Run the math on that $240,000 house. At $19,200 of advertised rent the GRM is 12.5. Collect the $616 and you're at $19,816, and the GRM is 12.1. Same house, same price, better number, and nothing about the building changed.
Rent sitting under market wrecks the ratio invisibly.
If you're 8% under market, your GRM is 8% worse than it should be, and there's no line item anywhere telling you so. You'd just conclude the property is mediocre.
This is the single most common thing I find. The tenant is happy, rent arrives on the first, and three years go by.
Vacancy doesn't show up at all.
GRM uses a full year of rent as though you collected all twelve months. Two extra weeks empty every two years is roughly a 2% permanent haircut on your actual rent, and the ratio never sees it.
This month I pulled 21 of our recent turnovers and tagged each one by who set the price. The thirteen we priced leased in a median of 23 days. The eight where the owner overrode us took 40.
So what should you actually use?
If you're buying, use GRM to sort the list and cap rate to make the decision.
If you already own it, both are the wrong tool. The number that matters is return on the equity sitting in the property today, not return on what you paid for it years ago.
A house you bought for $180,000 that's now worth $300,000 with $120,000 of equity in it more than when you bought it. If that equity is returning 3% while it sits there, that's the real question, and no GRM will ever surface it.
That's the calculation I run with owners before anybody talks about selling. It's also the one almost nobody has done on their own property.
Find your real numbers
If you came here to check a GRM, you're already doing the right kind of thinking. The next step is checking whether the gross rent you plugged into it is the right number in the first place.
I built a free audit that runs your property one question at a time, compares your rent to the current market, finds the income you're not collecting, and works out what your equity is actually returning. About five minutes, and you get the report whether or not we ever talk.
