Gross Potential Rent (GPR)
The total rent a property would collect if every unit were occupied at full market rent with zero vacancy or loss. It's the theoretical ceiling of rental income, before vacancy, concessions, and credit loss are subtracted.
Gross potential rent (GPR) is the maximum rental income a property could produce — every unit leased, every tenant paying full market rent, no vacancy, no concessions, no losses. It's the starting line of a property's income statement and the top of the funnel from which all real income is derived.
GPR = Σ (market rent of every unit), as if 100% occupied
From potential to actual income
No property collects 100% of GPR. The income statement steps down from it:
Gross Potential Rent (100% at market)
− Vacancy loss
− Loss-to-lease (units rented below market)
− Concessions / credit loss
+ Other income (laundry, parking, fees)
= Effective Gross Income (EGI)
− Operating expenses
= NOI
The gap between GPR and what's actually collected is captured by economic vacancy.
A worked example
10-unit building, all 2BR units, market rent $1,500.
Gross potential rent = 10 × $1,500 × 12 = $180,000/year
Reality:
1 unit vacant, 2 units at $1,350 (below-market leases)
Vacancy + loss-to-lease ≈ $18,000 + $3,600 = $21,600
Effective gross income ≈ $158,400
GPR is $180k, but the property realistically generates ~$158k — and that EGI, not GPR, is what feeds NOI and the loan.
Why lenders use it
GPR sets the upside ceiling and is the benchmark for measuring vacancy and loss-to-lease. But underwriters never lend on GPR itself — they lend on effective gross income after realistic deductions. A seller pitching a deal on 'gross potential' is showing you the best case; the lender (and you) must discount it to reality. The distance between GPR and EGI is exactly where deals are won or oversold.
How it's used in investor lending
Use GPR to quantify upside — the difference between current rents and market rents is your value-add opportunity (raising rents toward GPR boosts NOI and value via the cap rate). But underwrite the loan on EGI, applying a realistic vacancy rate and accounting for concessions. On a DSCR loan, don't let a broker's GPR-based pro forma inflate the qualifying ratio; the lender will use actual or appraiser-supported market rent, net of vacancy.
This is general information, not financial advice.
Frequently asked questions
Is gross potential rent the same as actual income?
No. Gross potential rent assumes 100% occupancy at full market rent with no losses — the theoretical maximum. Actual income (effective gross income) subtracts vacancy, below-market leases, concessions, and credit loss, then adds other income. Lenders underwrite on effective gross income, not gross potential rent.
Why do sellers quote gross potential rent?
Because it's the largest, most flattering income figure. A pro forma built on gross potential rent shows the best-case scenario as if the property were perfectly leased at market. Smart buyers and lenders discount it to effective gross income using realistic vacancy and loss assumptions before valuing the deal or sizing the loan.
How is gross potential rent useful to an investor?
It quantifies the upside. The gap between current rents and gross potential rent is your value-add target — raising rents toward market increases NOI and, through the cap rate, the property's value. Just don't confuse that potential with current income when calculating what loan the property can support today.