In May 2026, 39.6% of U.S. rental listings on Zillow advertised a concession, up from 35.1% a year earlier (Zillow), and RealPage measured the average discount at 11.1% of asking rent, the deepest in more than 25 years (RealPage).
For landlords, net effective rent is not just a marketing number; it is the figure that determines true total-year rental income and cash flow. An 11.1% gap between gross and net effective rent hits a landlord's first-year cash flow immediately, and it compounds differently over time depending on whether the discount is a one-time concession or a permanent rent cut. One-time concessions let landlords preserve the gross rent figure for valuations and investor projections, but underwriters and appraisers focus on effective income, so the building's appraised value and loan eligibility still reflect the concession-adjusted number.
Gross rent also governs the security deposit, broker fee, renewal increase, and the income figure used in appraisals, so getting the distinction exactly right matters on both sides of the ledger. For a deeper guide to how concessions work, understanding how rent concessions work helps both landlords and tenants get the distinction exactly right.
What is net effective rent vs gross rent
The net effective rent vs gross rent distinction describes the same lease from two angles: what the contract says versus what the tenant averages out to paying.
- Gross rent: The full, unadjusted monthly rent written into the lease. Tenants' monthly checks match this figure, and statutes, broker agreements, and renewal clauses reference it.
- Net effective rent: The average monthly cost after a concession's dollar value is spread across every month of the lease term, including the free ones. In a standard free-month structure, no single payment equals this number; it exists for comparison and marketing.
The gap between the two figures is the concession itself. A lease with no concession has identical gross and net effective rent.
How net effective rent works
A concession lowers the tenant's average cost without touching the contract rent, but for the landlord it reduces actual cash collected in the free month and pulls down total-year rental income even though the face rent on the ledger stays high. A one-time free month costs the owner the same first-year cash as an equivalent permanent rent reduction, but the free month expires at renewal while a permanent cut erodes the base that every future increase compounds from. The same dollar hit lands very differently over the life of the lease depending on which structure the landlord chooses.
How to calculate net effective rent
The Wall Street Prep formula is:
Monthly net effective rent = [gross rent × (lease term − free months)] ÷ lease term
Take a common NYC structure that StreetEasy documented: a listing advertises $2,377 per month net effective on a 13-month lease with one month free. The tenant pays gross rent for 12 of the 13 months, a total of $30,901, which works out to $2,575 per month on a standard no-concession basis. The advertised $2,377 is that same $30,901 divided across all 13 months, free month included.
How landlords amortize concessions across the lease term
The amortization mechanic takes total rent due over the term, subtracts the concession's dollar value, and divides by every month in the lease period, including the months nobody pays for. The denominator matters: the same one free month produces a lower advertised figure on a 13-month lease than on a 12-month lease, because the discount gets diluted across one extra month. That dilution is part of why the 13-month term with one free month became a common NYC listing structure. It is worth noting that the actual monthly rent a landlord collects is unchanged by amortization math in the free-month structure, since the concession simply shifts when the cash arrives rather than reducing each check; the amortized-across-all-months variant does lower each individual payment, but the landlord ends up with the same total-year income either way.
What tenants pay each month
Monthly checks equal the gross rent. The concession usually appears as one or more designated months with no payment due. The lease itself states the gross figure. That mismatch between the advertised number and the signed document confuses people: a StreetEasy survey found that 40% of renters said the term “net effective rent” confused them, which prompted the platform to display gross rent prominently on listings.
How concessions affect deposits, renewals, fees, and valuation
Advertising a concession instead of cutting the contract rent affects renewals and deposits. It also changes fees and the lease paperwork itself. Each one favors the landlord who tracks it and surprises the one who doesn't.
Why landlords advertise net effective rent instead of lowering gross rent
A free month keeps the higher gross rent on record. Landlords use that figure to anchor future renewal increases and preserve comparable-rent data that other owners and appraisers pull. Investors still see the higher face rent. As Multi-Housing News reports, “One-time concessions are preferred by some developers over permanent, larger rent negotiations to maintain 'gross rent' levels for valuations and bank/investor projections.”
Lenders adjust for the tactic. Fannie Mae's multifamily underwriting deducts concessions from gross potential rent before arriving at effective gross income and underwritten NOI, and Freddie Mac requires appraisers to “report and analyze all rental concessions, discounts, and abatements.” Heavy concessions shrink underwritten income and loan sizing even when the face rent holds. Landlords use the strategy to protect the renewal baseline and the market-facing comp; the appraisal still reflects the discount.
Lease renewals and future rent increases
Renewal increases compute from gross rent, so the year-two jump is steeper than the advertised effective figure implies. Brick Underground works the numbers: an apartment advertised at $3,300 net effective with one month free carries a lease that says $3,600. A 5% renewal increase yields $3,780, roughly 14.5% above the $3,300 the tenant effectively paid in year one. And the concession itself typically vanishes: Brick Underground's renewal guidance says landlords offer concessions to entice renters to sign a lease and usually do not offer them again at renewal.
Security deposits and broker fees
Deposits key off the contract rent. New York's GOL § 7-108 provides that “No deposit or advance shall exceed the amount of one month's rent,” and no state statute or attorney general guidance reviewed defines the deposit base as net effective rent. A tenant who compared listings on the effective price posts a deposit calculated from the higher gross figure at signing.
Broker commissions follow the same rule. The LegalClarity analysis says brokers almost universally calculate commissions on the gross rent in the lease; if a landlord offers one free month on a 12-month lease, the broker still uses 12 full months as the commission base. NYC's FARE Act, effective June 11, 2025, changed who pays; NYC DCWP confirms that neither a landlord nor a landlord's agent can collect a broker fee from a tenant unless the tenant hired the broker directly. The calculation base stayed gross rent.
Documenting concessions in the lease
Put the concession in the signed lease or an attached rider. State the free months and the dollar value. Add any clawback conditions in the same document. Illinois codifies this in the Rent Concession Act, which requires a lease granting a concession to bear the legend “Concession Granted” and state the amount, extent, and nature of the concession. Reviewed jurisdictions generally do not mandate such a label outside Illinois, which makes the lease language the only record if a dispute arises over whether the tenant earned a free month. In NYC rent-stabilized units, the wording can also determine whether courts treat a concession as a preferential rent, covered below.
How net effective rent compares with other concessions
Landlords can offer a free month or cut the permanent price. They can also use non-cash incentives. Commercial leases use a more elaborate version of the same idea.
Concession vs permanent rent reduction
For a landlord, the cash-flow math over time makes concessions far more attractive than permanent cuts. Take a 12-month lease at $3,600 gross with one free month: the landlord collects $3,600 for 11 months and $0 for one, totaling $39,600 in year one. A permanent rent reduction to $3,300 produces the exact same $39,600 in year one ($3,300 times 12). The difference emerges at lease renewal. With the concession, the landlord anchors the renewal off the $3,600 gross figure; a 5% increase at lease renewal yields $3,780 per month, or $45,360 in year two. With the permanent cut, the renewal baseline is $3,300, and the same 5% increase yields only $3,465 per month, or $41,580 in year two.
Over a multi-year hold, that $315-per-month gap compounds with every subsequent increase, which is why operators favor concessions: they preserve total rental income while still competing on net effective rent. A permanent cut also drags on the comp data for the whole portfolio, lowering the benchmarks that inform future pricing across every unit.
Owners in different metros make different choices: Zillow's May 2026 report shows 63.4% of Dallas listings carried concessions against 17.5% in New York. In concession-heavy metros, owners are defending gross rents rather than repricing them.
Face rent vs effective rent in commercial leases
Commercial deals draw the same asking-versus-actual distinction with more inputs, but first require a structural choice that residential leases skip entirely. In a gross lease, the landlord bundles operating costs like insurance, taxes, and maintenance into the rent, so the tenant pays one flat figure. In a net lease, the tenant pays a lower base rent and then covers those outgoings separately on top. Because the two structures produce very different cash flows from the same headline number, effective rent has to normalize across them before any further adjustments.
It then also nets out the landlord's cost to land the tenant: rent-free periods, tenant improvement (TI) allowances, and leasing commissions. APERS puts commissions at 4-6% of total lease value. CBRE reported office lease concessions with the average TI allowance at $94.69 per square foot and average free rent at 9.0 months on new office leases in H1 2024. Institutional underwriting then converts the whole cash-flow stream into an NPV-equivalent level rent; CBRE Econometric Advisors discounts at 8.2%. Residential net effective rent is one arithmetic average; commercial effective rent is a discounted underwriting figure.
Other concession types
Zillow tracks six concession categories:
- free or discounted rent
- waived broker fees
- application fees
- deposit fees
- gift cards
- parking
Free rent dominates at 90.8% of all promotions, and Zillow's April 2026 report says a free month returns roughly $1,930 at the national median. Reduced or waived deposits ranked second in Zillow's 2020 data at 9.1% of concessions. Multi-Housing News reports gift cards up to $1,000 as a common market-rate incentive, and Apartment List puts typical waived application fees at $30 to $75. Only incentives that reduce collected rent belong in a net effective calculation; a gift card sweetens the deal without lowering the ledger rent, so it leaves the effective figure unchanged.
What's next for net effective rent
Listing platforms are converging on displaying the real numbers:
- StreetEasy's Listings Quality Policy requires rental listing prices to reflect gross rent and bars net effective or amortized rent as the primary price. The platform computes net effective rent automatically when the agent enters concession details. Since the FARE Act took effect, The Real Deal reported that StreetEasy labels the asking figure “base rent” and excludes fees from it.
- Zillow takes a different approach as part of a broader transparent pricing push, dropping net-effective and gross terminology in favor of a “Total monthly price” that bundles base rent with required monthly fees, a shift driven by state laws in Massachusetts (September 2025), Connecticut (October 2025), and Colorado (January 2026).
- Apartments.com treats all-in pricing as mandatory in Colorado, Connecticut, Massachusetts, Minnesota, Nevada, and Virginia, and flags concession listings with a blue “Move-in Special” tag.
In NYC rent-stabilized housing, the stakes run higher than marketing. Under DHCR Fact Sheet #40, tenants paying a preferential rent on or after June 14, 2019 retain it for as long as they rent the unit. Guideline increases apply to the preferential rent. The higher legal regulated rent does not control while the tenant remains in the unit. Parties continue to litigate whether a concession counts as a preferential rent.
The cases do not point in one direction:
- The First Department's Flynn decision (2021) held that a one-time free month tied to construction did not create a registrable net effective rent.
- Burrows allowed a claim that a two-month concession “was in fact a preferential rent by another name.”
- A 2026 First Department ruling found a landlord's concessions functioned as preferential rent for calculating increases.
Law firm HWRPC's guidance to stabilized-unit owners is blunt: given the uncertainty, “we strongly suggest that, if possible, concessions be avoided”, and any concession offer should be structured with counsel before it goes out.
FAQ
These answers cover the calculations, payment mechanics, deposits, fees, and renewal issues readers most often confuse when comparing gross rent with net effective rent.
Does a tenant pay the net effective rent or the gross rent each month?
Gross rent, in the standard structure; the concession arrives as specific payment-free months. Some landlords amortize the discount across all months so each check is lower. The lease should state which structure applies before signing.
How is net effective rent calculated step by step?
Multiply the gross rent by the number of months the tenant actually pays, then divide by the total lease term including free months. Wall Street Prep's example: $4,000 gross rent on a 12-month lease with two free months means $48,000 in potential rent minus $8,000 in concessions, divided by 12, for a net effective rent of $3,333 per month.
Are security deposits and broker fees based on gross rent or net effective rent?
Both use gross rent. Deposit caps vary widely by state: the California AG guide caps most landlords at one month's rent after July 1, 2024 (two months for small landlords), Iowa and Arizona allow two months, and Texas, Florida, and Illinois set no statutory limit. LegalClarity says broker fees typically run one month's rent or 10-15% of first-year annual rent; StreetEasy uses 12% of annual rent as the typical NYC figure.
Should a landlord offer a free month or negotiate a lower gross rent?
A free month preserves the gross baseline for renewals, comps, and investor reporting, which is why operators favor it in soft markets. Tenants lean the other way: in Zillow's 2025 renter survey, 27% named reduced rent the best concession they received, against 17% for a rent-free first month. A landlord expecting the tenant to stay several years should weigh whether repeating a concession at each renewal costs more than a smaller permanent cut would have.
How does a concession affect the rent increase at renewal?
On a free-market lease, the increase applies to the gross rent, and landlords usually do not repeat the concession, so the tenant's effective cost jumps twice at once. In rent-stabilized NYC units, DHCR's example applies the guideline increase to the lower preferential rent: a unit with a $1,218 legal regulated rent has a preferential rent that rises 1.5% to $1,015 at renewal, and the tenant pays the $1,015.
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