An attachment or addendum to a title insurance policy that modifies the terms of the policy to meet the specific circumstances relating to the particular real estate transaction and the named insured.

The terms of title insurance endorsements, and whether they are negotiable, vary from state to state. However, title insurance endorsements generally modify the listed exceptions, conditions and stipulations of the title insurance policy so that the insured party receives greater coverage than the insured would otherwise receive under the terms of an unendorsed policy. Title insurance endorsements may also be used to correct or modify a previously issued title insurance policy.

Since endorsements create a greater liability for the title insurance underwriter, most endorsements require an additional charge to be collected in excess of the usual title insurance premium.

Title insurance endorsements are distinguishable from affirmative coverage, which provides added insurance for specific exceptions listed in the title insurance policy.