Avalara 1099 & W-9

Version avalara1099
Companies W9
Forms 1099
Forms W9
Issuers 1099
Jobs

IssuerBase

Parameters
nameRequired
string

Legal name. Not the DBA name.

dbaNameOptional
string

Doing Business As (DBA) name or continuation of a long legal name. Use either this or 'transferAgentName'.

tinOptional
string

Federal Tax Identification Number (TIN).

referenceIdOptional
string

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.

telephoneRequired
string

Contact phone number (must contain at least 10 digits, max 15 characters). For recipient inquiries.

taxYearRequired
integer

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.

countryCodeRequired
string

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.

emailOptional
string

Contact email address. For recipient inquiries. Phone will be used on communications if you don't specify an email

addressRequired
string

Address.

cityRequired
string

City.

stateRequired
string

Two-letter US state or Canadian province code (required for US/CA addresses).

zipRequired
string

ZIP/postal code.

foreignProvinceOptional
string

Province or region for non-US/CA addresses.

transferAgentNameOptional
string

Name of the transfer agent, if applicable — optional; use either this or 'dbaName'.

lastFilingRequired
boolean

Indicates if this is the issuer's final year filing.