Gross Rent Multiplier (GRM) is a screening metric used by investors to compare rental property opportunities in a given market.
The GRM functions as the ratio of the property’s market value over its annual gross rental income.
The formula for calculating the gross rent multiplier is:
Sales price or value divided by annual effective gross income. For example, if the sale price is $325,000 and the effective gross annual income is $50,000 the G.R.M. is 6.5 ($325,000 /$50,000).
