The answer is...it depends. Normally there are closing costs (cost, sometimes taxes too, for services provided that are essential to the transaction closing. It is customary for the buyer to pay those cost associated with buying the home, such as closing costs to their mortgage, while the seller normally covers the costs of selling the home such as sales taxes.
However, if you are working with a savvy realtor then you may be able to negotiate for the seller to cover some or all of YOUR closing costs for you as well. That more or less depends on the bank selling the home, because some banks will absolutely not agree to pay for your costs (although like Annette said they may reduce the price instead)