HomeAvalara 1099 & W-9Avalara 1099 & W-9OverviewAPISDKIntegration guidesVersion avalara1099Companies W9Forms 1099Forms W9Issuers 1099JobsModelsPrimaryWithholdingAgentPrimary withholding agent information for tax formsParametersnameRequiredstringName of the primary withholding agenteinRequiredstringEIN (Employer Identification Number) of the primary withholding agent.View Example