NNN stands for net, net, net, referring to the three expense categories the tenant covers on top of base rent: property taxes, building insurance, and maintenance. The term gets used loosely in listings, so understanding what's actually shifted from landlord to tenant matters more than the letters themselves before comparing one property against another.
The Three Nets, One at a Time
The first net covers property taxes, which in Michigan means the tenant is on the hook for a bill that can jump when a building changes hands, since the state resets taxable value to the equalized value at transfer. The second net covers building insurance, usually structured so the landlord holds the policy but bills the tenant for the premium, or requires the tenant to carry it directly. The third net covers maintenance and repairs, including structural items in a true triple net lease, though many leases in practice carve out roof and structure as landlord responsibilities even while calling themselves triple net.
Single Net and Double Net Are Not the Same Product
A single net lease shifts only property taxes to the tenant, leaving insurance and maintenance with the landlord. A double net lease adds insurance to the tenant's side but usually leaves structural maintenance with the owner. Listings sometimes use NNN loosely to describe any lease with meaningful expense pass-through, so reading the actual lease abstract rather than trusting the marketing label is the only reliable way to know what a buyer is taking on.
What This Means for the Landlord's Actual Return
Because operating expenses largely sit with the tenant, the rent a triple net landlord collects is closer to a true net return than gross rent on a conventional rental would be, which is why cap rates on this product tend to run lower than on management-intensive assets. That lower cap rate reflects reduced landlord risk and effort, not necessarily a worse deal, but it also means the return is more exposed to a single point of failure: the tenant's ability to keep paying rent and covering those expenses.
Reading the Lease Abstract Before the Offering Memo
The offering memo highlights the numbers that make a deal look good. The lease abstract shows what the landlord is actually entitled to and responsible for, including whether roof and structure are carved out, what happens if the tenant vacates before lease end, and how rent escalations are timed. Michigan's freeze-thaw climate makes roof and structural carve-outs especially worth checking, since even a nominally triple net lease can leave an owner exposed to a major repair bill the marketing summary never mentions.
Where a 1031 Exchange Enters the Picture
An investor selling appreciated property, whether a rental home, land, or a small commercial building, can roll the proceeds into an NNN-leased replacement property through a 1031 exchange, deferring rather than eliminating the tax on the gain. The appeal for many exchangers stepping out of active management is straightforward: trading a hands-on rental for a lease where the tenant handles taxes, insurance, and maintenance shifts the day-to-day work without cashing out and paying the IRS along the way.
Common 1031 Exchange Questions
Is every property marketed as NNN actually a true triple net lease?
Not always. Some leases marketed as NNN still leave roof and structural repairs with the landlord, so the label alone doesn't tell you what's covered. The lease abstract, not the listing summary, is the reliable source.
Why do NNN properties usually trade at lower cap rates than other commercial real estate?
Lower landlord risk and effort generally command a lower cap rate, since the tenant is absorbing taxes, insurance, and maintenance that would otherwise fall to the owner and reduce the net return on a comparable gross-lease property.
What happens to an NNN tenant's expense obligations if the tenant vacates?
Once a tenant vacates, the landlord typically resumes responsibility for taxes, insurance, and upkeep until a new tenant is placed, which is why lease term remaining and tenant financial strength matter as much as the current rent figure.
Can I 1031 exchange out of a management-heavy rental and into an NNN lease property?
Yes, as long as both the relinquished and replacement properties are held for investment or business use, the exchange rules don't distinguish between a management-heavy rental and a passive NNN lease as long-as both qualify as like-kind real property.
How does Michigan's property tax uncapping affect an NNN tenant's costs?
Because taxable value resets to the state equalized value when a property transfers, a tenant taking over a lease on a recently sold building may face a higher tax pass-through than the previous tenant paid, which is worth flagging before a buyer relies on the seller's trailing tax figures.
