openapi: 3.1.0
info:
  title: Avalara 1099 & W-9 1099 Forms Business Entities API
  description: The Avalara 1099 and W-9 API automates collection, validation, and e-filing of IRS forms including 1099 variants (1099-NEC, 1099-MISC, 1099-K, 1099-INT, 1099-DIV), 1095 forms, W-2, and 1042-S. It provides endpoints for creating, updating, managing, and filing various IRS information returns.
  version: '1.0'
  contact:
    name: Avalara Developer Relations
    url: https://developer.avalara.com/
    email: developer.relations@avalara.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
  termsOfService: https://legal.avalara.com/#siteterms
servers:
- url: https://api.avalara.com/1099/v1
  description: 1099 API Production
- url: https://api.sbx.avalara.com/1099/v1
  description: 1099 API Sandbox
security:
- bearerAuth: []
tags:
- name: Business Entities
  description: Manage business entity records
paths:
  /BusinessEntities:
    get:
      operationId: listBusinessEntities
      summary: Avalara List Business Entities
      tags:
      - Business Entities
      responses:
        '200':
          description: List of business entities
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/BusinessEntity'
    post:
      operationId: createBusinessEntity
      summary: Avalara Create a Business Entity
      tags:
      - Business Entities
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BusinessEntity'
      responses:
        '201':
          description: Business entity created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BusinessEntity'
  /BusinessEntities/{entityId}:
    get:
      operationId: getBusinessEntity
      summary: Avalara Get a Business Entity by ID
      tags:
      - Business Entities
      parameters:
      - name: entityId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Business entity details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BusinessEntity'
    put:
      operationId: updateBusinessEntity
      summary: Avalara Update a Business Entity
      tags:
      - Business Entities
      parameters:
      - name: entityId
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BusinessEntity'
      responses:
        '200':
          description: Business entity updated
    delete:
      operationId: deleteBusinessEntity
      summary: Avalara Delete a Business Entity
      tags:
      - Business Entities
      parameters:
      - name: entityId
        in: path
        required: true
        schema:
          type: string
      responses:
        '204':
          description: Business entity deleted
components:
  schemas:
    ExciseAddress:
      type: object
      properties:
        line1:
          type: string
        line2:
          type: string
        city:
          type: string
        region:
          type: string
          description: State or province code
        postalCode:
          type: string
        country:
          type: string
          description: ISO 3166 country code
    BusinessEntity:
      type: object
      properties:
        entityId:
          type: string
        entityName:
          type: string
        entityType:
          type: string
        federalIdNumber:
          type: string
          description: Federal EIN
        address:
          $ref: '#/components/schemas/ExciseAddress'
        isActive:
          type: boolean
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: OAuth 2.0 bearer token
externalDocs:
  description: 1099 & W-9 API Documentation
  url: https://developer.avalara.com/api-reference/avalara1099/avalara1099/