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NNN vs Gross Lease: Who Insures What

By Richard Sweet. Reviewed by Richard Sweet. Updated July 7, 2026.

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The lease decides more about your insurance than most owners realize. Whether you sign a triple net or a gross lease quietly sets who is supposed to buy the building coverage, who carries liability, and who insures the contents. The trouble is that lease language and actual policies are written at different times by different people, and they drift apart. When they do, the gap sits invisible until a claim forces it into the open.

How a triple net lease splits insurance

Under a triple net lease, the tenant generally reimburses the property costs, including insurance, taxes, and maintenance, on top of base rent. But reimbursing the premium is not the same as holding the policy. In many triple net arrangements the owner still carries the building coverage and simply passes the cost through. In others the tenant is required to insure the structure directly. The common triple net misconception is assuming net means the tenant handles everything, when the lease language actually controls who buys what.

How a gross lease splits insurance

A gross lease flips the cash flow. The owner generally pays the building and liability premiums and folds those costs into a single rent number. The tenant usually still insures its own contents and carries its own liability, but the structure sits on the owner’s policy. The tenant pays for insurance indirectly, through the rent, rather than through a separate reimbursement line. For the owner, the coverage responsibility is clearer, because it stays in one place.

Where the gaps open

The gap almost always shows up between what the lease says and what the policies do. A lease may require the tenant to insure the building, name the owner as an additional insured, or carry certain limits. If no one collects and reads the certificate of insurance, none of that is confirmed. The coverage may never have been bought, or the owner may never have been added. The risk transfer the lease promised only works if the paperwork behind it is real.

Which structure protects you

Neither lease type is safer on its own. What protects you is alignment between the lease and the policies. Under a triple net lease, that usually means keeping or verifying building coverage and checking the tenant’s certificate every year. Under a gross lease, it means carrying the right building and liability limits yourself and confirming the tenant insures its own contents. The deciding factor is not the label on the lease, it is whether the actual policies match what the lease assigned.

Questions to ask your advisor

  • Under my lease, who is supposed to insure the building, and who actually holds the policy?
  • Am I reimbursed for insurance, or is the tenant required to buy it directly?
  • Have I collected and read the tenant’s certificate this year?
  • If the tenant is required to name me, does the certificate confirm it?
  • Should I keep my own building coverage even if the lease puts it on the tenant?

The lease and the insurance are supposed to tell the same story, and over a long term they quietly stop matching. A triple net lease can leave the owner exposed when a certificate is never checked, and a gross lease can leave contents uncovered when responsibilities are assumed rather than confirmed. A coverage review reads your lease against your policies, checks the certificates, and shows you exactly where the two have drifted apart before a claim does it for you.

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What many people don't realize

The part that catches owners off guard

  • The lease type decides who is supposed to buy building, liability, and contents coverage.
  • Under a triple net lease the tenant usually reimburses insurance costs, but the owner often still carries the building policy.
  • Under a gross lease the owner generally builds insurance into the rent and carries the coverage.
  • Reimbursing a cost is not the same as being named on the policy, and that gap causes disputes.
  • Gaps open when the lease and the actual policies do not match.
The Vantage Point

What we see most often

Owners often think a triple net lease means the tenant handles all the insurance. Usually it means the tenant reimburses the cost while the owner still holds the building policy. Those are different things, and the difference surfaces at renewal or at a claim.

What we see most often is a lease that assigns insurance duties the policies do not actually reflect. The lease says the tenant insures the building, but no one confirmed the tenant bought it or listed the owner. The paperwork and the coverage drifted apart.

A real example

An owner held a triple net lease and assumed the tenant carried building coverage because the lease required it. No certificate was ever collected, and the tenant had only bought contents and liability.

When a fire damaged the structure, there was no building policy in the tenant's name and the owner had let his own lapse, believing the tenant covered it. The lease said one thing and the policies said another. Confirming the certificates each year would have caught it. This is a composite example, and the details are illustrative.

Details changed to protect privacy. Shared to illustrate, not to promise an outcome.

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A quick gut check

Where did your current coverage come from?

How you bought your policy shapes whether you are actually getting options. Three situations we see constantly:

A captive agent

If your policy came from an agent who represents one company, they cannot shop the market for you. You are seeing one company's answer, not your options.

Online, on your own

Online portals tend to optimize for the lowest price. That often means important coverages get quietly left out, and you do not find out until a claim.

An independent agent

The right setup, but only if they re-shop and review it. An independent agent who has not reviewed your coverage in years has stopped working for you.

See where you actually stand
When to review

It may be time for a coverage review if:

  • You assume a triple net lease means the tenant insures the building
  • You have never collected or reviewed the tenant's insurance certificate
  • Your lease and your actual policies were set up at different times
  • You are not sure whether you or the tenant carries building coverage
  • You dropped coverage because you believed the tenant picked it up
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Frequently asked

Frequently asked

Under a triple net lease, who insures the building?
It depends on the lease, but in many triple net arrangements the owner still carries the building policy and the tenant reimburses the cost as one of the net expenses, alongside taxes and maintenance. In some triple net leases the tenant is required to insure the structure directly. The key is that reimbursing the premium is not the same as holding the policy, so the lease language has to be read to see who actually buys the coverage.
Under a gross lease, who pays for insurance?
Under a gross lease the owner generally pays the building and liability premiums and builds those costs into the rent. The tenant usually still insures its own contents and carries its own liability, but the owner typically holds the coverage on the structure. The tenant pays indirectly through rent rather than through a separate reimbursement line.
What is the most common gap between lease and policy?
The lease assigns an insurance duty that the actual policies do not match. A lease may require the tenant to insure the building or name the owner as an additional insured, but if no one collects and checks the certificate, the coverage may never have been bought or the owner may never have been added. That gap generally stays invisible until a claim, which is exactly the wrong time to find it.
Do I still need my own policy under a triple net lease?
Often yes. Even when a tenant is required to insure the building, owners frequently keep their own coverage or verify the tenant's policy closely, because a single tenant's lapse, cancellation, or underinsurance would otherwise leave the structure exposed. Dropping your own coverage on the strength of a lease clause, without confirming the tenant's policy, is a common and costly assumption.
How do I make sure the lease and the insurance actually line up?
Read the lease and the policies together, then collect and check the certificates every year. The lease sets who is supposed to insure what, and the certificates show what was actually bought and whether the owner is named. Doing this on a schedule, rather than once at signing, is what keeps the two from drifting apart over the term.
RS
Written and reviewed by

Richard Sweet

Founder and Principal Advisor, Vantage Point Risk

Richard Sweet runs Vantage Point Risk, an independent insurance and risk advisory for property owners, real estate investors, business owners, and families. He works with investors every week on the coverage decisions that decide how a claim actually turns out, and writes the Learning Center to put those decisions in plain language.

Reviewed for accuracy by Richard Sweet. Last updated July 7, 2026.

Richard also writes The Vantage Point, notes on building a better business.

This article is general information, not insurance advice. Lease terms, coverage, and who insures what vary by policy, carrier, and state. For your property, talk with a licensed advisor.

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