POP - The Premium Only Plan is the building block of the Section 125 Plan. It allows for certain employee paid group insurance premiums to be paid with pre-tax dollars.

FSA - The Flexible Spending Account is a pre-tax benefit that allows employees to deduct money pre-tax out of each paycheck to help pay for medical expenses such as co-pays, dental visits, eyeglasses, and over the counter drugs. The FSA also allows daycare and individual health premium expenses to be deducted pre-tax!