Questions regarding §457 maximums and refunds should be directed to Louisiana Deferred Compensation at (225) 926-8082 or toll free at (800) 937-7604. If you wish to enroll in Deferred Compensation you have 30 days from your date of hire to enroll retroactive to your original date.A 457(b) plan is a tax-deferred retirement savings plan. Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal.