United States Washington: DOR Provides Timeline Explaining Recent Law Changes Attempting to Clarify and Simplify B&O and Sales Tax Nexus-Related Provisions 27 May 201927 views1 min read Source: Deloitte One year out: Wayfair and SST converge to shape remote sales tax legislation Washington: New Law Imposes B&O Tax Surcharges on Various Services and an Added 1.2% B&O Tax on Certain Banks