All customers having items shipped to Washington State addresses are subject to Washington State sales tax. Exceptions are made for those who provide proof of residency in one of the following tax exempt locations:
US States: Oregon, Alaska, Montana, Colorado, Delaware and New Hampshire.
Canadian Provinces: Alberta, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Quebec, and the Yukon Territory.
Other: American Samoa, Commonwealth of Northern Mariana Islands, Guam, and the Virgin Islands.