Avalara 1099 & W-9
IssuerBase
Legal name. Not the DBA name.
Doing Business As (DBA) name or continuation of a long legal name. Use either this or 'transferAgentName'.
Federal Tax Identification Number (TIN).
Internal reference ID. Never shown to any agency or recipient. If present, it will prefix download filenames. Allowed characters: letters, numbers, dashes, underscores, and spaces.
Contact phone number (must contain at least 10 digits, max 15 characters). For recipient inquiries.
Tax year for which the forms are being filed (e.g., 2024). Must be within current tax year and current tax year - 4. It's only required on creation, and cannot be modified on update.
Two-letter IRS country code (e.g., 'US', 'CA'), as defined at https://www.irs.gov/e-file-providers/country-codes. If there is a transfer agent, use the transfer agent's shipping address.
Contact email address. For recipient inquiries. Phone will be used on communications if you don't specify an email
Address.
City.
Two-letter US state or Canadian province code (required for US/CA addresses).
ZIP/postal code.
Province or region for non-US/CA addresses.
Name of the transfer agent, if applicable — optional; use either this or 'dbaName'.
Indicates if this is the issuer's final year filing.