1. Refund debit cards: Before accepting your refund on any debit card check out if there are any fees associated. Some charge $1.00 per month for as long as you have a balance on the card and others charge up to a monthly fee of $4.95. Beware of atm cash withdrawl charges as well.
2. Refund anticipation loans: AKA Instant Refunds. These are short term loans that can have high interest rates attached.
3. Extra Fees: Processing fees, document prep fees, service fees...this is what you are paying a preparer to do in the first place, there should not be any additional fees! Ask for the fee schedule up front before you get started.