eBay informed sellers of lower USPS shipping costs for select shipments beginning August 22nd. But significantly, the lower rates won’t impact packages going to buyers in rural ZIP codes. Ground Advantage: Rates will decrease for 2lb packages across Zones 1–8 Priority Mail: Rates will decrease for packages weighing up to 10lbs shipping to Zone 8 Sellers who use eBay’s shipping calculator do not have to do anything – the calculator will automatically update with the new rates when they take effec