Yahoo! Inc. has eliminated fees for customers using its auctions Web site in the United States, undercutting eBay Inc.

Yahoo yesterday stopped charging its customers a fee of 5 cents to 75 cents to list an item on its U.S. auction Web site, a company spokeswoman said. Yahoo also eliminated the fee that it charged when an item is sold. That fee was based on the value of the item.

The cuts challenge eBay and other Internet auctioneers such as Amazon.com Inc. and Overstock.com Inc., which continue to charge fees for listing items on their sites. EBay announced on Thursday that it was buying Shopping.com Ltd., a price-comparison site that's a rival to Yahoo's shopping site.