Triple Net Lease

A triple net lease (NNN) is a form of landlord/tenant arrangement in which the tenant is responsible not only for the property’s rent and utilities but also for additional expenses, such as property taxes and maintenance. 

An NNN lease might seem to primarily benefit the landlord, as the majority of the financial burden associated with the property is assigned to the tenant.

Since the triple net lease costs are passed from the landlord to the tenant, the landlord receives a stable, predictable net income with minimal expense exposure. NNN leases are standard for long-term commercial tenants such as national retailers, restaurant chains, and logistics companies.

How a triple net lease works

The tenant’s monthly payment includes a base rent amount, typically lower than under a gross lease, plus a proportionate share of the property's operating expenses. The three expense categories the tenant covers are:

• Property taxes: The real estate taxes the jurisdiction assesses on the property, or a proportionate share in a multi-tenant building
• Building insurance: Property insurance premiums, typically for the structure itself
• Maintenance and repairs: Upkeep that may include roof, HVAC, plumbing, and structural repairs, depending on lease terms

The exact scope of maintenance obligations varies. Some NNN leases shift nearly all property costs to the tenant; others carve out major structural repairs for the landlord. The written lease should clearly define these responsibilities.

Why it matters

For landlords and investors, a triple net lease can reduce financial exposure and management responsibilities. For tenants, the lease can offer lower base rent and more control over the space, but it can also create unpredictable total occupancy costs.

If property taxes rise, insurance premiums increase, or major repairs are needed, the tenant may bear some or all of those costs. Business owners should review the full financial commitment before signing, not just the base rent.

Common uses

Triple net leases appear across several commercial property types, typically where tenants are creditworthy, and the landlord seeks predictable long-term income.

• Freestanding retail: A national pharmacy or fast-food chain leases a standalone building under a long-term NNN lease, covering all taxes, insurance, and maintenance.
• Multi-tenant centers: A retailer in a shopping mall may pay base rent plus a proportionate share of taxes, insurance, and common area maintenance.
• Industrial and warehouse facilities: A logistics company leases a distribution center and takes on full responsibility for building upkeep.
• Single-tenant investment properties: An investor purchases a property leased to a creditworthy tenant under a long-term NNN arrangement as a passive income asset.

Triple net lease vs. gross lease

Under a gross lease, the tenant usually pays one rent amount, and the landlord covers many property operating expenses from that rent. Under a triple net lease, the tenant pays base rent plus taxes, insurance, and maintenance charges.

Key considerations before signing

Tenants should request historical operating expense data to estimate annual costs beyond base rent. Landlords should ensure the lease terms are clear, including maintenance responsibilities, expense calculation methods, and audit rights. Ambiguity in these provisions is a common source of disputes. Because NNN leases involve substantial long-term financial commitments, legal review before signing is advisable for both parties.

Related terms

• Lease agreement: The foundational document that governs any landlord-tenant relationship.
• Common area maintenance (CAM): CAM refers to shared property maintenance costs, often for areas such as parking lots, sidewalks, landscaping, and hallways.
• Modified gross lease: A modified gross lease splits operating expenses between the landlord and tenant based on the lease terms.

FAQs about triple net lease

What are the alternatives to a triple net lease?

Triple net leases are a popular choice in commercial real estate rentals, but there are other options if this sort of arrangement doesn’t suit your business. 

A double-net lease is similar to a triple-net lease but does not require the tenant to pay maintenance costs related to the property.

Another common lease type is the gross lease, in which the tenant pays higher rent prices but is not responsible for maintenance or any other property expenses. The tenant’s higher rent is meant to cover these costs, but the landlord is responsible for identifying and paying these items out of the rent money. 

There are also hybrid models for commercial leases, in which a tenant pays for only certain property expenses beyond rent or a percentage of the total expenses related to the property. These are sometimes known as modified gross leases.

Does a triple net lease include utilities?

Utilities are not one of the three main “nets,” but the lease may require the tenant to pay utilities separately. In some properties, utilities are metered directly to the tenant. In others, the landlord may allocate utility costs among tenants under the lease.

What expenses does the landlord typically retain?

It depends on the lease. Some landlords retain responsibility for major structural elements, roof replacement, foundation issues, or capital improvements. Other leases shift more of those costs to the tenant. Tenants should confirm in writing who pays for roof, HVAC, foundation, parking lot, structural, and casualty-related costs.

Is a triple net lease the same as an absolute net lease?

No. An absolute net lease requires the tenant to assume every property cost without exception, including structural repairs that a standard NNN lease might reserve for the landlord. The written lease language determines which category a given agreement falls into.