Items sold by Port Networks and shipped to destinations in the state of Maryland are subject to Maryland sales tax. Tax is generally calculated on the total selling price of each individual item. In accordance with state tax laws, the total selling price of an item will generally include item-level shipping and handling charges, item-level discounts, and an allocation of order-level shipping and handling charges and order-level discounts. The tax rate applied to your order will generally be the combined state and local rate for the address where your order was shipped. Therefore, the sales tax rate applied to your order may be different for an order shipped to your home address than it is for an order for the very same items shipped to your work address.