Waiver of Subrogation in Commercial Leases: Why Your Insurer Can't Recover from a Negligent Landlord

Somewhere in most commercial leases there is a clause that says, in effect: “Each party waives all rights of recovery against the other party for any loss covered by insurance.” It looks innocuous. Tenants sign it without a second thought. Landlords insist on it. Insurance agents attach an endorsement and move on.

What most parties do not realize is that this clause fundamentally changes who bears the economic cost of negligence. When the landlord’s failure to maintain the roof causes a water intrusion that destroys your inventory, your insurer pays your claim — but cannot recover from the landlord. When your employee’s negligence causes a fire that damages the building, the landlord’s insurer pays — but cannot recover from you. The waiver of subrogation makes each party’s insurer the ultimate bearer of the loss, regardless of fault.

What Subrogation Is and How It Works

Subrogation is the legal principle that allows an insurer, after paying a claim, to “step into the shoes” of its insured and pursue recovery from the party who caused the loss. It is a fundamental mechanism of the insurance system — it keeps premiums lower by ensuring that the responsible party ultimately pays for the damage, not the insurer’s premium pool.

For a detailed overview of subrogation principles, see our article on subrogation in property insurance claims.

Here is how subrogation works in a commercial property context without a waiver:

1. A landlord fails to repair a known roof deficiency. Rain enters the building and damages the tenant’s inventory worth $200,000.
2. The tenant files a claim under the tenant’s commercial property policy. The insurer pays $200,000 minus the deductible.
3. The tenant’s insurer then has a subrogation right against the landlord, because the landlord’s negligence caused the loss. The insurer can sue the landlord to recover the $200,000 it paid.
4. If the insurer recovers from the landlord, the tenant may also recover the deductible from the landlord as part of the same action.

Subrogation allocates the cost of the loss to the negligent party. Without it, the tenant’s insurer absorbs the loss permanently, even though the landlord caused it — and the landlord faces no financial consequence for the negligence.

What a Waiver of Subrogation Does

A waiver of subrogation eliminates the insurer’s right to pursue the other party to the lease. When the lease requires both parties to waive subrogation rights, each party’s insurer must absorb its own insured’s loss without recovering from the other party — even if the other party was negligent.

The typical lease language reads:

This language does two things: (1) it releases each party from direct liability to the other for insured property losses, and (2) it requires each party to obtain an endorsement from their insurer confirming the waiver. If the tenant’s insurer does not issue the endorsement, the waiver in the lease may conflict with the insurer’s subrogation rights under the policy, creating a coverage dispute.

The ISO Endorsement: CP 12 18

ISO (Insurance Services Office) publishes a standard endorsement for commercial property policies that implements the waiver of subrogation: CP 12 18 — Loss Payable Provisions, specifically Option D, which is the “Waiver of Rights of Recovery” provision. Some carriers also use a standalone endorsement titled “Waiver of Rights of Recovery (Waiver of Subrogation)” referenced as CP 12 18 or proprietary equivalents.

The endorsement typically states that the insurer will not exercise its right of recovery against a party designated in the endorsement schedule. The key requirements are:

• The endorsement must be in place before the loss.An insurer is not obligated to honor a waiver of subrogation that was not part of the policy at the time of the loss. If the tenant signed a lease requiring a waiver but never asked the agent to add the endorsement, the insurer’s subrogation rights remain intact — and the tenant may be in breach of the lease.
• The designated party must be specifically identified. The endorsement schedule should name the landlord (or the lease, by reference). A blanket waiver may not satisfy all carrier requirements.
• The endorsement may carry an additional premium.Because the insurer is giving up its recovery rights, waiver of subrogation endorsements typically add a small percentage to the property insurance premium. This cost is part of the tenant’s lease obligation.

On the general liability side, the equivalent endorsement is CG 24 04— Waiver of Transfer of Rights of Recovery Against Others to Us. Leases frequently require both property and liability waivers, so both endorsements may be needed. For more on how these endorsements fit into the broader commercial lease insurance framework, see our article on commercial policy endorsements.

The Deductible Problem

This is where the waiver of subrogation quietly hurts tenants in a way few anticipate. When your insurer pays a claim, it pays the covered loss minus your deductible. If someone else caused the loss, subrogation allows your insurer to recover from the responsible party — and your deductible is typically recovered as well, either by the insurer on your behalf or by you directly.

With a waiver of subrogation in place, that recovery disappears. Consider this scenario:

For tenants with high deductibles — $25,000, $50,000, or more is common in commercial property policies — the waiver effectively makes the tenant a self-insurer for that amount, even when the landlord is entirely at fault. This is an economic cost that is rarely discussed during lease negotiations.

California Law on Waiver of Subrogation Validity

California courts have consistently upheld waiver of subrogation clauses in commercial leases. Unlike some consumer contracts where exculpatory clauses may be unenforceable under California Civil Code §1668 (which voids contracts that exempt a party from liability for fraud, willful injury, or violation of law), commercial lease waivers of subrogation are generally treated as valid, negotiated agreements between sophisticated parties.

Key principles under California law:

• Mutual waivers are enforceable. When both the landlord and tenant waive subrogation rights against each other for insured losses, California courts treat this as a risk-allocation mechanism that benefits both parties. Each party looks to its own insurer rather than litigating fault after a loss.
• The waiver must be supported by consideration. In a lease context, the mutual exchange of promises (including rent, the lease term, and the reciprocal waivers themselves) provides adequate consideration.
• The waiver does not extend beyond insured losses.Most waiver clauses are limited to losses covered by insurance (or required to be covered by insurance). If a loss falls outside the scope of insurance — for example, a loss excluded by the policy — the waiver may not apply, and the negligent party may still be liable. The specific language of the waiver controls.
• Willful misconduct is an exception.Under Civil Code §1668, a clause that purports to exempt a party from liability for willful misconduct, fraud, or intentional harm is void as against public policy. A waiver of subrogation covering only negligence-caused losses does not implicate this prohibition. But a waiver that attempts to excuse intentional or reckless conduct may be unenforceable to that extent.

The California Supreme Court in Tunkl v. Regents of University of California(1963) 60 Cal.2d 92 established factors for determining when an exculpatory clause violates public policy, including whether the party seeking exculpation performs a service of great public importance and holds a decisive advantage in bargaining power. Commercial lease waivers of subrogation between business parties typically do not trigger Tunkl concerns, because both parties are presumed to have bargaining power and access to counsel.

Mutual vs. One-Way Waivers

Not all waiver of subrogation clauses are created equal. The distinction between mutual and one-way waivers has significant practical consequences:

• Mutual waiver:Both the landlord and tenant waive subrogation rights against each other. Both parties’ insurers give up recovery rights. This is the most common structure and is generally considered fair — each party looks to its own insurance, and neither sues the other after a loss. The cost of negligence is absorbed by the negligent party’s insurer through higher premiums over time.
• One-way waiver (tenant waives, landlord does not):The tenant waives subrogation rights against the landlord, but the landlord retains the right to subrogate against the tenant. This means if the landlord’s negligence causes a loss to the tenant, the tenant’s insurer cannot recover from the landlord. But if the tenant’s negligence causes a loss to the building, the landlord’s insurer can recover from the tenant. This structure is heavily favorable to the landlord and should be resisted during lease negotiation.

If you are presented with a one-way waiver, understand what you are giving up: the right to recover (through your insurer) from a landlord whose negligence damages your property, while the landlord retains the right to recover from you. At minimum, negotiate for mutual waivers. If the landlord insists on a one-way waiver, the tenant should negotiate a corresponding reduction in rent or other concessions to offset the asymmetric risk allocation.

Additional Insured vs. Waiver of Subrogation: Understanding the Difference

These two concepts are frequently confused, but they serve entirely different purposes. Both commonly appear in the same lease, and both require separate endorsements.

• Additional insured statusadds the landlord as a covered party under the tenant’s liability policy. If someone sues the landlord for an injury that occurred on the leased premises, the tenant’s liability carrier may owe the landlord a defense and indemnity. Additional insured status is about liabilitycoverage — it protects the landlord against third-party claims. It does not affect property coverage and does not involve subrogation.
• Waiver of subrogation prevents the insurer from recovering from the other party after paying a first-party property claim. It is about propertycoverage — it protects each party from being sued by the other’s insurer after a property loss. It does not give the landlord coverage under the tenant’s policy.

A lease that requires the tenant to name the landlord as an additional insured on the CGL policy and provide a waiver of subrogation on the property policy is asking for two different things. The additional insured endorsement (e.g., CG 20 11) goes on the liability policy. The waiver of subrogation endorsement (CP 12 18 for property, CG 24 04 for liability) goes on the respective policy. For a complete breakdown of additional insured mechanics, see our article on Named Insured vs. Additional Insured.

When a Waiver Helps vs. Hurts the Tenant

The waiver of subrogation is not inherently good or bad for tenants. Whether it helps or hurts depends on the circumstances:

• The waiver helps the tenant when the tenant is at fault.If the tenant’s negligence causes a fire that damages the building, a mutual waiver prevents the landlord’s insurer from pursuing the tenant for building repair costs. Without the waiver, the tenant could face a subrogation demand for hundreds of thousands of dollars. The waiver provides the tenant with protection against that liability exposure.
• The waiver hurts the tenant when the landlord is at fault.If the landlord’s negligence causes water damage that destroys the tenant’s inventory, the waiver prevents the tenant’s insurer from recovering from the landlord. The tenant pays the deductible out of pocket, the tenant’s insurer absorbs the rest, and the landlord faces no financial consequences.
• The waiver hurts the tenant when the loss is uninsured or underinsured. If the tenant’s loss exceeds the policy limits or falls within an exclusion, the waiver may still bar the tenant from suing the landlord directly, depending on the waiver language. Some waivers apply to all losses “whether insured or not”; others apply only to losses “to the extent covered by insurance.” The language matters enormously.

Practical Guidance for Lease Negotiation

If you are negotiating a commercial lease that includes a waiver of subrogation clause, consider these strategies:

1. Insist on mutual waivers.If the landlord wants the tenant to waive subrogation, the landlord should waive it too. A mutual waiver creates a level playing field — each party looks to its own insurer, and neither party bears disproportionate risk.
2. Limit the waiver to insured losses.Negotiate language that limits the waiver to losses “to the extent covered by the waiving party’s insurance.” This preserves the right to pursue claims for uninsured or underinsured losses.
3. Negotiate the deductible issue.Consider lease language that requires the negligent party to reimburse the other party’s deductible, even with the waiver in place. This is a compromise: the insurer still cannot subrogate, but the innocent party recovers its out-of-pocket deductible cost.
4. Confirm your insurer will issue the endorsement. Before signing the lease, confirm with your agent or broker that the carrier will issue a waiver of subrogation endorsement on both the property and liability policies. Some carriers will not issue waivers to certain parties or in certain circumstances.
5. Understand the premium impact. Waiver of subrogation endorsements add a modest cost to the insurance premium. Factor this into your total occupancy cost calculations.
6. Address the endorsement timing requirement. The policy endorsement must be in place before a loss. If the lease is signed but the endorsement is not added until later, a loss during the gap may not be subject to the waiver. Request the endorsement immediately upon lease execution.

What Happens When the Endorsement Is Missing

A surprisingly common scenario: the lease requires a waiver of subrogation, the tenant signs the lease, but nobody ever adds the endorsement to the insurance policy. Then a loss occurs. The tenant’s insurer pays the claim and discovers the landlord was at fault. The insurer initiates subrogation against the landlord. The landlord points to the lease and says, “But we have a waiver.”

The legal result depends on the jurisdiction and the specific facts, but the general principles in California are:

• The lease waiver binds the parties to the lease (landlord and tenant). It may not bind the insurer, which is not a party to the lease and did not agree to waive its subrogation rights.
• If the policy contains standard subrogation language (requiring the insured to preserve the insurer’s subrogation rights), the tenant’s agreement to waive subrogation without the insurer’s consent may technically breach the policy. In practice, California courts have been reluctant to penalize insureds for this, particularly when the waiver is a standard commercial lease provision.
• The safest course is to always obtain the endorsement. It eliminates the conflict between the lease obligation and the policy requirement and ensures all three parties — landlord, tenant, and insurer — are aligned.

For tenants: if your lease requires a waiver of subrogation, confirm in writing with your agent that the endorsement has been added to your policy. Request a copy of the endorsement and keep it with your lease file. Do not rely on a certificate of insurance to prove the waiver is in place — the certificate is informational only and does not constitute the endorsement.