Editor’s Pick
In a true triple net lease, the tenant pays the three “nets”: property taxes, building insurance, and maintenance, so a landlord’s day-to-day operating cost runs close to zero. That doesn’t mean the landlord pays nothing. In a standard NNN, the landlord still owns the roof, the foundation, and the exterior structure, still makes the mortgage payment, still owes income tax on the rent collected, and still funds reserves for the big repairs that come due eventually. And the moment the space sits empty, every cost the tenant used to cover lands right back on the landlord.
What the Landlord Still Pays in a Triple Net Lease
Even in a true NNN, the landlord typically keeps four costs on their own side of the ledger:
-
Structure and roof (in a standard NNN): the building’s roof, foundation, and load-bearing walls stay the landlord’s responsibility. More on the exception below.
-
Debt service: whatever the property’s financed for, the mortgage payment belongs to the landlord no matter how the lease shifts other costs.
-
Income tax: rent is income. The landlord owes tax on it, the same as on any other revenue-producing asset.
-
Capital reserves: the fund set aside for the roof replacement, the parking lot resurfacing, or the HVAC swap that’s coming whether the tenant stays or not.
A property that’s genuinely “hands off” for the landlord is rare. Even a well-run NNN deal still asks something of the landlord, just far less than a gross lease does.
The Landlord Pays Every Net Cost During a Vacancy
Once a tenant moves out, there’s no one to pass the three nets to, and all of them land back on the landlord until a new lease starts. Property taxes still come due on schedule. Insurance still has to stay in force, often at a higher rate once the building sits vacant. Basic upkeep, security, and utilities for showings don’t stop just because there’s no rent coming in. This is the cost a lot of NNN pitches skip over: a landlord who budgets only for the lease’s monthly numbers gets an unpleasant surprise the first time a tenant leaves.
Standard NNN vs. Absolute (Bondable) NNN: Who Actually Pays for the Roof
How much the landlord actually pays depends on which flavor of NNN is written into the lease. A standard NNN lease shifts property taxes, insurance, and routine maintenance to the tenant but leaves the landlord holding structural responsibility: the roof, the foundation, and major exterior components. An absolute (or bondable) NNN lease goes further. The tenant takes on structural repairs too, including roof replacement, and typically can’t terminate the lease or stop paying rent even after a casualty like a fire or storm.
Absolute NNN leases show up most often in long-term, single-tenant deals (think a national retail chain or a corporate-credit tenant), where the landlord wants a genuinely passive investment and the tenant’s balance sheet can absorb the risk. If your lease just says “triple net” without spelling out who owns the roof, don’t assume. Read the maintenance and casualty clauses before you sign anything.
How NNN Compares to Gross and Single/Double Net Leases
Each step from a gross lease to a full triple net shifts one more cost category from the landlord to the tenant:
| Lease type | Property taxes | Insurance | Maintenance |
|---|---|---|---|
| Gross lease | Landlord | Landlord | Landlord |
| Single net (N) | Tenant | Landlord | Landlord |
| Double net (NN) | Tenant | Tenant | Landlord |
| Triple net (NNN) | Tenant | Tenant | Tenant |
A gross lease is the simplest for the tenant to budget around, since one rent check covers everything. A triple net lease is the simplest for the landlord, since nearly every operating cost passes through. Most deals fall somewhere on this ladder rather than at either extreme, and the specific lease document is what actually controls who pays for what, regardless of which label got used to market it.
In Multi-Tenant NNN Properties, the Maintenance Net Comes Back as CAM
In a shopping center, office building, or any property with more than one tenant, the maintenance net doesn’t vanish into a single line item. It comes back to each tenant as common area maintenance (CAM), billed monthly on an estimate and reconciled against actual costs once a year. A single-tenant NNN property skips this step entirely, since there’s no shared space to split, but the moment a second tenant shows up, CAM is how the maintenance net actually gets collected.
The Risks the Landlord Still Carries
The landlord’s real exposure in an NNN deal isn’t the monthly bills. It’s tenant default and the cost of finding a replacement. A tenant who falls behind or walks away leaves the landlord covering every net cost with no rent coming in, plus the marketing and screening it takes to re-lease the space. That’s the same exposure as any vacancy. Rising property taxes, insurance premiums, or maintenance costs can squeeze a tenant’s margins too, especially in retail, which is worth watching even though those bills aren’t technically the landlord’s to pay. And if the landlord ever refinances or the property secures a loan, the tenant’s credit and financial stability directly affect the terms a lender will offer.
None of this means an NNN lease is risky compared to other structures. It just means the landlord’s job shifts from managing costs to managing the tenant relationship and the lease terms themselves, which matters just as much for anyone investing in commercial rental property as the cost split does.
FAQ
Does the landlord pay property taxes in a triple net lease?
No. In a true triple net lease, the tenant pays property taxes directly or reimburses the landlord for them. The landlord typically has no property-tax expense as long as the tenant is current on rent.
Who pays for building insurance in a triple net lease?
The tenant generally pays the insurance premiums, but the landlord should still confirm the policy is adequate and stays in force, since it’s the landlord’s building on the line if coverage lapses.
What costs does the landlord still cover in a triple net lease?
In a standard NNN, the landlord covers the roof and structural repairs, the mortgage payment, their own income tax on the rental income, and every net cost during a vacancy. An absolute NNN shifts even the structural costs to the tenant.
How is base rent set in a triple net lease?
Base rent is set by market comparables for the property’s location, size, and condition, then negotiated against how much of the operating cost the tenant is taking on. Many leases also include a rent-escalation clause, often tied to the Consumer Price Index, though the exact terms vary by deal and aren’t standardized across the market.
What’s the difference between a triple net lease and a gross lease?
In a gross lease, the landlord pays property taxes, insurance, and maintenance out of one rent check. In a triple net lease, the tenant pays all three directly, on top of a base rent that’s quoted separately from those costs.
This article is general information, not legal or tax advice. Laws change, and every situation is different. For guidance on a specific situation, talk to a licensed attorney or tax professional.
