Modified Gross Lease vs NNN – What Are the Differences?
There are so many words and terms being thrown around when you’re getting ready to sign a lease. If you’re not a contract lawyer or professional who is used to it, it can be overwhelming. And then of course there are different types of leases, which come with their own unique terminologies. A few that come up for certain types of leases are modified gross lease vs NNN leases… both are common, and have big implications. So what are they?
Our property managers in Atlanta are well equipped no matter what type of lease it is, but it certainly matters. The type of lease sometimes determines just who exactly is calling that repair technician or what taxes look like from month to month or at the end of the year. So knowing the differences is important to everyone involved. Let’s jump into the differences between these two particular types and go over some things landlords, tenants, and owners should know.
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What Are They?
Leases come in a few different shapes, sizes, and flavors… not literally of course. But just about each one can have its own quirks. Whether you’re a property owner, landlord, or tenant, you’ll quickly realize that the details of the lease determine who pays for what. Two of the more common types you’ll run across are the Modified Gross Lease and the NNN (Triple Net) Lease. But what in the world are they?

Then there is the NNN Lease, which is short for triple net lease and of course different than a single net lease. It goes a bit further in certain ways. Here, the tenant pays not just rent but also takes on the property’s three big costs: taxes, insurance, and maintenance. For landlords, that’s great news because it creates steady, predictable income without worrying about fluctuating expenses. For tenants, it means more control over the property’s upkeep and expenses, but also more responsibility. NNN leases are common in single-tenant retail properties or standalone commercial property where the tenant runs pretty much the whole thing.
Modified Gross Lease vs NNN
When it comes to a Modified Gross Lease vs NNN lease, the difference really comes down to how costs are shared. In a modified gross setup, the landlord and tenant divide up the property’s expenses in a way that makes sense in certain ways. The tenant pays their rent and certain things that they think make sense, while the landlord still covers some of the big-picture costs.

- Expenses – Modified gross leases split costs between landlord and tenant, while NNN leases pass nearly all expenses to the tenant.
- Simplicity – Modified gross leases can vary by negotiation; NNN leases are more straightforward but tenant-heavy.
- Upkeep – Landlords in modified gross leases often handle building upkeep, while NNN tenants take care of maintenance.
- Risk – Modified gross leases share financial risk; NNN leases shift most of it to the tenant.
FAQ
What is the meaning of NNN lease​?
An NNN lease means the tenant pays for three key expenses in addition to their rent: property taxes, insurance, and maintenance. The idea is that the landlord gets a consistent, predictable stream of income since the tenant is covering most of the operating costs. You’ll often see NNN leases with commercial spaces like retail stores or standalone businesses.
How do you calculate NNN lease​?
To calculate an NNN lease, you start with the base rent (the agreed monthly or annual rent amount) and then add the tenant’s share of the property’s operating expenses… those “three nets.” For example, if the total annual costs for taxes, insurance, and maintenance come to $30,000 and there are three tenants with equal space, each would pay $10,000 on top of their rent. The exact formula can vary by lease.
Does modified gross lease include insurance​?
Whether a modified gross lease includes insurance depends on what the landlord and tenant negotiate. Generally, it can include partial coverage. In most modified gross leases, the landlord might handle the building’s structural insurance, while the tenant pays for liability or contents insurance for their own space. It’s all about how the deal is structured.
How BMG Can Help You Figure It All Out
When it comes to owning and operating rentals, it’s hard to do it all on your own. Understanding all the different types of leases is just one part of all that is going on in any one day. Modified gross lease vs NNN lease is the tip of the iceberg. After all, you are responsible for not only lease agreements, but also maintenance, tenant screening, and the list goes on and on.
Luckily, with the help of qualified professionals, you don’t have to do all on your own. Give us a call. Bay Property Management Group is a top-notch rental management company that offers comprehensive services. Contact BMG today if you need rental management services in Midtown or Atlanta areas. as well as in Baltimore, Philadelphia, Virginia, Georgia, Texas, or any number of our service areas.