May 12, 2026
A widely used lease provision is colliding with insurance rules, leaving tenants exposed
Landlords across the country have increasingly added language to leases that asks tenants to name the landlord as an additional insured or to waive the insurer's right of subrogation. Insurance lawyers and industry analysts say that clause is more than paperwork. It can trigger coverage gaps, claim denials, or force renters to switch policies - and that matters because roughly 45 million U.S. households now rent, making this a mass problem.
How a routine line in a lease can cost renters their coverage
A certificate of insurance is often presented as proof that a tenant is covered, but a certificate does not create coverage. Only an actual endorsement to the policy will add another party as an additional insured. Many personal lines renters policies are not designed to carry those endorsements, and insurers will refuse or charge for them. That mismatch leaves leases and policies out of sync and tenants vulnerable if a loss occurs.
The real-world consequences
Experts say the fallout falls into two tracks. First, insurers may decline to add a landlord as an additional insured on a renters policy or they may exclude losses tied to contractually waived rights. Second, if a tenant signs a lease that waives subrogation rights without obtaining the correct endorsement, carriers can deny a claim after they pay or insist on higher premiums. In worst cases tenants face both a denied claim and a lease violation that could lead to eviction.
What tenants and landlords should do now
Specialists recommend three practical steps: insist on endorsements rather than relying on certificates, review any waiver of subrogation with an insurance agent before signing, and get written confirmation from the insurer that the requested coverage exists. Industry voices also advise landlords to accept certificate holder status instead of demanding additional insured endorsements on personal renters policies. Those simple changes can prevent a policy from becoming a false sense of protection.
Bottom line
Lease language that transfers legal risk may seem routine, but it can have real and immediate insurance consequences. With tens of millions of people renting, small contract wording can produce large financial exposure.