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Gross Income Multiplier: Formula, Steps & Example

How do you calculate the gross income multiplier?

The gross income multiplier (GIM) is a quick, top-level way to compare income-producing properties by relating a property’s price to its gross income. It’s commonly used as an early screening tool because it’s simple and relies on just two numbers: the purchase price (or market value) and the gross annual income.

The gross income multiplier formula

Gross Income Multiplier (GIM) = Property Price ÷ Gross Annual Income

“Gross annual income” generally means the total income the property produces before subtracting operating expenses, debt service, capital expenditures, and vacancies (unless you specifically choose to use an adjusted gross figure). The key is to apply the same approach consistently when comparing multiple properties.

Step-by-step calculation

1) Confirm the property price. Use the asking price, purchase price, or appraised value—just be consistent across properties.

2) Determine gross annual income. For rentals, this is typically the scheduled rents collected over a year. If a property has multiple income streams (parking, storage, laundry), include those amounts if they’re recurring and verifiable.

3) Divide price by gross income. The result is the GIM. A lower GIM generally indicates more income per dollar paid, while a higher GIM indicates less income per dollar paid.

Example

If a small multifamily property sells for $600,000 and generates $100,000 in gross annual rent, the GIM is:

$600,000 ÷ $100,000 = 6.0

This means the price is six times the property’s gross annual income.

How to use the result

GIM works best for comparing similar properties in the same market. It does not account for expenses, deferred maintenance, or financing terms, so it’s typically followed by deeper analysis (like net operating income and cap rate). For additional context and a more detailed breakdown, see the main guide here: https://greatcollectionsvault.shop/how-do-you-calculate-the-gross-income-multiplier/.

FAQ

What is a good gross income multiplier for rental property?

A “good” GIM depends on the local market, property type, and risk profile. In many areas, lower GIMs can look more attractive, but they may also reflect higher expenses, more vacancies, or neighborhood factors that require closer review.