Gross Lease vs. Net Lease: Comparing Commercial Lease Types

You find two storefronts on the same block. One lists rent at a figure that looks a little high, the other at a figure that looks like a bargain. Before you call the cheaper one, check one word in each listing: gross or net. That word decides who pays the property taxes, the building insurance and the repairs, and it can flip which space is actually the better deal.

This guide walks through the main commercial lease types, how the costs move between landlord and tenant, and a simple way to compare offers that are written differently. It is general information for small business owners, so have an attorney or a commercial real estate professional you trust review any lease before you sign it.

What a Gross Lease Means

In a gross lease, you pay one rent figure and the landlord covers the building's operating costs out of that money. Property taxes, the landlord's insurance on the building and most maintenance are folded into your rent. You still usually pay for your own utilities, your own business insurance and anything inside your space that you break.

The appeal is predictability. You know your monthly occupancy cost when you sign, which makes budgeting simpler for a first location. The trade-off is that the landlord prices in risk. If taxes or insurance rise during your term, the landlord absorbs it, so the starting rent tends to be higher to cover that possibility.

Gross leases show up often in older multi-tenant buildings, small offices and shared suites, where splitting bills among many tenants would be more trouble than it is worth.

What a Net Lease Means

A net lease quotes a lower base rent, then adds some or all of the property's operating expenses on top. Those added costs are often called NNN charges, CAM (common area maintenance) or simply operating expenses. They are usually estimated for the year, billed monthly with your rent, and then reconciled once actual costs are known.

Net leases come in three common flavors:

• Single net (N): you pay base rent plus your share of property taxes.
• Double net (NN): base rent plus taxes and building insurance.
• Triple net (NNN): base rent plus taxes, insurance and maintenance of common areas, sometimes including structural items.

Triple net is the most common in retail strips and standalone commercial buildings. It has enough moving parts that it gets its own guide: Triple Net Lease Explained: What Tenants Really Pay covers how the charges are calculated and where surprises tend to hide.

Modified Gross: The Middle Ground

Many small business leases fall somewhere between the two. A modified gross lease (sometimes called a full service lease with exceptions, depending on who is talking) has the landlord covering some operating costs while you take on others. A common version: rent includes taxes and insurance, but you pay utilities, janitorial service and repairs inside your space.

Another common feature is a base year. The landlord covers operating costs up to the level of your first year, and you pay your share of any increases after that. This gives you predictable costs early and limited exposure later, which suits many first-time tenants. The details vary so much from lease to lease that the label alone tells you little. Read the expense section line by line.

Side-by-Side Comparison

Feature	Gross	Modified Gross	Triple Net
Quoted base rent	Highest	Middle	Lowest
Property taxes	Landlord	Usually landlord, increases may pass through	Tenant share
Building insurance	Landlord	Varies	Tenant share
Common area upkeep	Landlord	Varies	Tenant share
Cost predictability	High	Medium	Lower
Typical setting	Older offices, shared suites	Small offices, mixed buildings	Retail strips, standalone buildings

The table is a rough guide, not a rule. A lease called "gross" can still pass through certain costs, and a "net" lease can cap them. The wording in the document is what binds you.

How to Compare Two Offers Fairly

The only honest comparison is total occupancy cost: everything you will pay to be in the space, per month and per year. Here is a straightforward way to get there.

1. Convert everything to the same unit. Listings may quote rent per square foot per year, per month or as a flat amount. Pick one and convert both offers.
2. Ask for the current operating expense estimate. For a net lease, the landlord or listing agent should be able to give you the estimated charges for this year. Ask for the last few years of actuals too, so you can see the trend.
3. Add the costs you pay either way. Utilities, your own insurance, internet and in-suite repairs belong in both columns.
4. Look at the full term. Annual rent escalations, base-year rules and expense increases add up over a three- or five-year lease. Project each offer across the whole term, not only month one.
5. Price the build-out. If one space needs more work before you can open, that cost belongs in the comparison. Our guide to tenant improvement allowances explains how landlords sometimes help pay for it.

Once both offers are expressed as a single annual figure over the full term, the cheaper option is usually obvious. Plug that figure into your monthly projections so you can see how rent sits against expected sales.

St. Louis Considerations

Property taxes are one of the biggest pass-through items in a net lease, and in this region they depend on where the building sits. The City of St. Louis is an independent city, separate from St. Louis County, and the two assess and collect property taxes through different offices. Within the county, individual municipalities and school districts add their own layers. Two similar buildings a few miles apart can carry noticeably different tax bills.

That matters most on a net lease, because you pay your share of whatever the bill turns out to be. If you are weighing a storefront on a South City commercial street against one in an inner-ring county suburb, ask each landlord for the recent tax history on the property. Reassessments happen on a regular cycle, so ask how recent changes have affected the bill as well.

Older buildings, which this region has plenty of, can also mean higher maintenance and insurance costs. Under a gross lease that is the landlord's concern. Under a net lease, it is partly yours.

Putting It to Work

Neither lease type is better in every case. A gross or modified gross lease suits a business that wants steady, known costs while it finds its footing. A net lease can work well when the base rent is attractive and the building's expenses are stable and well documented. What matters is that you know which one you are signing and what it will cost over the full term.

Before you commit, take these steps:

• Identify the lease type and read every clause about operating expenses, not just the label.
• Get the expense estimate and recent history in writing.
• Build a full-term cost comparison for each space.
• Ask about caps on controllable expense increases and your right to review the annual reconciliation.

Those last points are negotiable more often than first-time tenants expect. Our guide to negotiating a commercial lease covers how to raise them and which other terms are worth discussing before you sign.