Will midterm endorsements impact premium? And will that result in a charge or refund to the customer?

Midterm endorsements

Yes, midterm endorsements which change the risk profile of the policy will impact premiums. Simply swapping out a home or auto, or adding a Named Insured would not impact premium; but if the risk changes (i.e. adding a driver or home) the premium will change pro-rata for the remaining policy period. Charges will be processed in the system with the same payment options as when binding a new account, and refunds will be generated to the customer automatically in the form of a mailed, paper check.