Gross Lease vs Net Lease: Key Differences Explained (2026)

If you're a landlord, property manager, or tenant negotiating a commercial lease, the gross lease vs net lease distinction is one of the first things you need to understand. It determines who pays for operating expenses, how rent is structured, and who carries the risk when costs go up.

This guide breaks down every lease type — gross, modified gross, single net, double net, and triple net (NNN) — with real numbers, pros and cons, and guidance on which structure works best for different situations.

What Is a Gross Lease?

A gross lease (also called a "full-service lease") is the simplest lease structure. The tenant pays one flat rental amount, and the landlord covers all operating expenses out of that rent.

What the landlord typically pays:

• Property taxes
• Property insurance
• Common area maintenance (CAM)
• Utilities (sometimes)
• Janitorial services (sometimes)
• Building repairs and maintenance

What the tenant pays:

• One flat monthly rent — that's it
• Their own business operations within the space

Gross Lease Example

A tenant leases 2,000 sqft of office space at $30/sqft/year gross.

• Annual rent: $60,000 ($5,000/month)
• The landlord's actual operating expenses for that space: ~$12/sqft ($24,000/year)
• Landlord's net income: $60,000 - $24,000 = $36,000 ($18/sqft effective)

The tenant's cost is predictable: $5,000/month, every month. If property taxes spike or insurance premiums increase, that's the landlord's problem.

Pros of Gross Leases

• Simplicity: Tenants love the predictability — one number, no surprises
• Easier to market: "Office space for $30/sqft" is cleaner than "$18/sqft NNN + estimated $12/sqft expenses"
• Attracts more tenants: Small businesses and startups prefer knowing their exact monthly cost
• Landlord controls quality: Since you're paying for maintenance, you control the vendors and quality of work

Cons of Gross Leases

• Expense risk on landlord: If taxes, insurance, or maintenance costs increase, your margins shrink — the tenant's rent stays the same
• Requires accurate expense estimation: You need to accurately forecast expenses when setting rent. Underestimate, and you lose money for the entire lease term
• Less transparent: Tenants don't see what operating costs actually are, which can lead to distrust in negotiations

What Is a Net Lease?

A net lease flips the script. The tenant pays a lower base rent plus some or all of the property's operating expenses. There are three levels of "net," each shifting more cost to the tenant:

Single Net Lease

The lightest version of a net lease. The tenant pays base rent plus their proportionate share of property taxes. The landlord still covers insurance, maintenance, and common area costs. Single net leases are relatively uncommon — most landlords and tenants prefer the clarity of a gross lease or the full cost-shifting of a triple net.

Double Net Lease (NN)

The tenant pays base rent plus property taxes and insurance. The landlord covers common area maintenance and structural repairs. Double net leases are common in multi-tenant retail and industrial properties.

Triple Net Lease (NNN)

The tenant pays base rent plus virtually all operating expenses — property taxes, insurance, and common area maintenance (CAM). The landlord's only remaining responsibility is typically structural repairs (roof, foundation, exterior walls), though even this can be negotiated.

Triple net leases are the gold standard for passive real estate income. Read our full triple net lease guide for a deep dive.

Net Lease Example

Same 2,000 sqft office space, structured as a triple net lease:

• Base rent: $18/sqft/year ($36,000/year or $3,000/month)
• Property taxes: $5/sqft ($10,000/year)
• Insurance: $2/sqft ($4,000/year)
• CAM: $5/sqft ($10,000/year)
• Total tenant cost: $30/sqft ($60,000/year or $5,000/month)
• Landlord's net income: $36,000 (base rent — expenses are passed through)

Notice the total cost to the tenant is the same $5,000/month. But the difference is what happens when expenses change. If property taxes increase by 20%, the tenant absorbs that increase under a net lease. Under a gross lease, the landlord does.

Modified Gross Lease: The Middle Ground

A modified gross lease is a hybrid — the tenant pays a base rent that includes some expenses, but not all. The specific expense split is negotiated between the parties.

Common modified gross structures:

• Tenant pays base rent + utilities + janitorial; landlord pays taxes, insurance, CAM
• Tenant pays base rent + all expenses above a "base year" expense stop
• Tenant pays base rent + CAM; landlord pays taxes and insurance

The Expense Stop (Base Year)

One of the most common modified gross structures uses an expense stop or base year. Here's how it works:

1. The first year of the lease establishes the "base year" operating expenses (say $12/sqft)
2. In subsequent years, if operating expenses exceed the base year amount, the tenant pays the difference
3. If expenses in Year 3 are $14/sqft, the tenant pays the $2/sqft overage ($4,000 on 2,000 sqft)

This protects the landlord from rising costs while giving the tenant a predictable base cost. It's especially common in multi-tenant office buildings.

Side-by-Side Comparison

Which Lease Type Should You Use?

Use a Gross Lease When:

• You have a multi-tenant building and want to simplify billing
• Your target tenants are small businesses that want cost predictability
• You have strong operating cost control and can accurately forecast expenses
• The market is competitive and you need to attract tenants with simple terms

Use a Net Lease When:

• You have a single-tenant property (retail, industrial)
• Your tenant is a creditworthy national or regional company
• You want truly passive income with minimal management burden
• Operating costs are rising and you don't want to absorb increases
• You're building a portfolio of NNN properties for long-term wealth

Use a Modified Gross Lease When:

• You want to share risk with the tenant
• The property is multi-tenant but you want expense pass-throughs
• Tenants want some predictability but the market supports cost-sharing
• You're in a market where modified gross is the norm (many office markets)

How Lease Type Affects Property Value

The lease structure directly impacts how investors value your property:

• NNN properties trade at lower cap rates (higher values) because the income is more predictable and the landlord has less expense risk. A single-tenant NNN property with a 10-year corporate lease is considered one of the safest commercial real estate investments.
• Gross lease properties require more analysis because you need to evaluate both the income AND the landlord's expense exposure. Rising operating costs can erode NOI even with stable rents.
• Cap rate comparison: A NNN retail property might trade at a 5.5% cap rate, while a comparable gross lease property might require a 7% cap rate due to the additional risk.

Common Pitfalls

1. Underestimating expenses on a gross lease: If you set rent at $28/sqft and expenses end up at $15/sqft instead of your projected $10/sqft, you just lost $5/sqft for the entire lease term
2. Not auditing CAM charges on a net lease: Tenants have the right to audit CAM reconciliations. Inaccurate CAM charges lead to disputes and legal action
3. Ignoring expense stop base year selection: The base year you choose for a modified gross lease significantly affects who bears cost increases. Choose carefully
4. Comparing gross and net rents apples-to-apples: $30/sqft gross and $18/sqft NNN might be equivalent total costs, but they have very different risk profiles

Bottom Line

There's no universally "best" lease type — the right structure depends on the property type, tenant profile, market conditions, and your investment strategy. Gross leases offer simplicity at the cost of expense risk. Net leases offer predictable income at the cost of administrative complexity. Modified gross leases split the difference.

The most important thing is understanding what you're agreeing to. Know your operating costs, model different scenarios, and negotiate terms that align with your financial goals — whether you're the landlord or the tenant.