The Public Service Commission for each state establishes the deposit and fees policy for that state. 
They also regulate the fee amounts and deposit interest rate. The following is a description by state of these policies.
Commercial Deposit
A deposit will be equal to 2 times the highest monthly charge for the specific premise and must be paid at the time service is requested.

Miscellaneous Charges
Missouri Other Service Charges (Gas)
Missouri Other Service Charges (Electric)
Penalties
Residential accounts have a 21-day due date and are assessed a 0.5% penalty if not paid by the due date.
Small Commercial accounts have a 21-day due date and are assessed a 5% penalty if not paid by the due date.
Large Commercial accounts have a 14-day due date and are assessed a 5% penalty if not paid by the due date.
Deposit Interest for electric
Interest on cash deposits for electric services will be paid in December at a rate of 5.75%. 
Interest payments are applied annually to the customer's account and appear as a credit on the customer's bill. 
Interest rates are reviewed and established by the Public Service Commission each year.
Deposit Interest for gas
Interest on cash deposits for gas services will be paid at a rate of 6.5%. 
Interest payments are applied annually to the customer's account and appear as a credit on the customer's bill. 
Interest rates are reviewed and established by the Public Service Commission each year.
 
Deposits & Fees

Deposits and Fees
