Washington-based professional service providers with clients located outside the state are likely aware by now that significant changes were made to the state’s business and occupation (B&O) tax apportionment rules in 2010. Under these revised rules, B&O tax on receipts from non-Washington customers are often sharply reduced. However, what many businesses may overlook, or remain unaware of, is that these rules may substantially reduce the B&O tax on sales to Washington-based companies as well, resulting in a significant potential refund opportunity. Before you start celebrating, there are a few things you need to know. Read the entire article.

Originally published in Seattle Business Magazine in February 2015.