Washington State W 9 Form - October 2018) department of the treasury internal revenue service. Business & occupation (b&o) tax. Web this form is used to provide the correct taxpayer identification number (tin) to the person who is required to file an. Do not send to the irs. Web request for taxpayer identification number and certification. Give form to the requester. List of local sales & use tax rates.
Do not send to the irs. Business & occupation (b&o) tax. October 2018) department of the treasury internal revenue service. Give form to the requester. Web this form is used to provide the correct taxpayer identification number (tin) to the person who is required to file an. List of local sales & use tax rates. Web request for taxpayer identification number and certification.