Portfolio / Structure

Master, blanket or individual policies: compare the mechanics

Clarify what a portfolio proposal shares and what remains limited by building, entity, event or year.

By Investor Friendly Insurance Agent · Substantive review: October 24, 2026 · U.S. educational guidance

Use dotted terms for definitions. You can also browse the glossary.

Before you decide

  • Master is a label that needs a definition.
  • A large total limit may still have location or peril restrictions.
  • A condo association master policy is a different arrangement from an owner portfolio.

Define the proposal

Ask whether “master” means a portfolio contract for your properties, a group program, or an association policy covering common interests. Obtain the actual insured names, participating locations, forms and limits. Do not compare an individual building limit with a portfolio total as if they were equivalent.

For a portfolio, identify which values are scheduled and which are shared. For a condo, the association documents and unit responsibilities are central. Washington’s regulator explains the interaction of association and unit coverage in its jurisdiction; that is not a universal division of interior ownership.

Run a simultaneous-loss test

Illustrative portfolio: two buildings each have a $1 million rebuilding estimate. Proposal A has separate $1 million building limits. Proposal B states a $2 million shared property limit. A $1.4 million loss at one location raises different questions under each: is the value estimate sufficient, can shared capacity apply and does a scheduled-value or margin restriction cap payment?

A shared catastrophe sublimit or annual aggregate can create another constraint. Read those terms before concluding that a blanket structure solves underinsurance.

Compare administration

Program decision sheet
TopicIndividual arrangementPortfolio question
RenewalSeparate dates and formsCommon date; are forms actually consistent?
AcquisitionNew placementAutomatic acquisition clause, reporting and limits?
SaleCancel one contractRemove location; minimum premium or fees?
ClaimsLocation-specific limitShared capacity, aggregate and deductible treatment?
EntitiesOne owner per contractAll legal owners properly insured?

Choose based on the exposure

A portfolio arrangement can simplify records while concentrating reliance on shared terms. Individual contracts can isolate limits while creating inconsistent dates or exclusions. Neither structure is inherently better for every owner.

Retain a reconciliation showing values, clauses, administration costs and unresolved gaps. Obtain written confirmation before cancelling any contract or assuming a newly acquired property joins the program.

Sources & scope

Sources checked October 24, 2026. General descriptions do not replace the policy, endorsements, declarations or an insurer’s coverage determination. Examples are hypothetical unless explicitly identified otherwise.

Continue your field guide

Insurance definition

General terminology. The actual policy wording and applicable requirements govern the arrangement.