As pointed out below, the seller almost always pays the commission. However, there are some exceptions:
1. Auction - buyer would have to pay his/her agent/broker to advise, although most won't represent this kind of transaction because of liability.
2. FSBO (for sale by owner) - although a majority of these sellers will pay a buyer's agent, some won't, in which case the buyer would have to.
3. Some developers do not pay realtors in the initial offering phase. In this case the buyer would have to pay.
Please note however these are rare exceptions.
Lance King/Owner-Managing Broker