usps insurance cost priority mail is an additional service offered by USPS for Priority Mail shipments. USPS provides insurance to cover the value of packages in case of loss, damage, or theft during transit. The cost of insurance varies based on the value of the package being shipped. For example, the standard insurance coverage for Priority Mail is often included for packages up to a certain value, but higher coverage levels require an additional fee. Customers can purchase insurance at the time of shipping to ensure their valuable items are protected throughout the delivery process.