Then their website is very misleading..
Rates & Fees: Monthly charges exclude taxes, Sprint Surcharges [incl. USF charge of up to 13.6% (varies quarterly), Administrative Charge (up to $1.99/line/mo.), Regulatory Charge ($0.40/line/mo.) & state/local fees by area]. Sprint Surcharges are not taxes or gov't-required charges and are subject to change. Sprint chooses to collect Washington State B&O Fee of 0.471% of your monthly billed charges to recover its costs. Details: sprint.com/taxesandfees.