• Select: REGISTER. Our vision is to transform financial lives through advice, people and technology.Our mission is to empower financial freedom for all. Questions regarding §457 maximums and refunds should be directed to Louisiana Deferred Compensation at (225) 926-8082 or toll free at (800) 937-7604. Nassau County employees can access their 457b retirement accounts to check balances, view their retirement plan activity and more. Generally, anyone who is paid to prepare the tax return must sign it and fill in the blanks in the Paid Preparer's Use Only area of the return.