Avalara

Avalara 1099 Forms API

Create and manage 1099 information returns

GitHub OpenAPI
Business capability
Tax Reporting & Compliance BC-220.40

Operations 5

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

POST /forms/1099 Create a 1099 form for a payee · Avalara Create a 1099 Form #
Ask an LLM
“Can I create a new 1099 form with a payee's payment amounts?”
“What details do I need to start a 1099 information return for a contractor?”
Tell an agent
Create a {formType} 1099 form for tax year {taxYear} under payer company {payerCompanyId}.
Start a new 1099 for payee {payee} with federal withholding of {federalTaxWithheld}.
GET /forms/1099 List 1099 information returns · Avalara List 1099 Forms #
Ask an LLM
“Which 1099 forms have I prepared for the 2025 tax year?”
“Can I see only my 1099-NEC forms that are still in draft status?”
Tell an agent
List my 1099 forms for tax year {taxYear}.
Show 1099 forms of type {formType} with status {status}.
GET /forms/1099/{formId} Get a single 1099 form · Avalara Get a 1099 Form by ID #
Ask an LLM
“Where can I see the payee and amounts on one specific 1099 form?”
“Can I pull up a 1099 form by its ID to check its status?”
Tell an agent
Show me 1099 form {formId}.
Fetch the details of 1099 form {formId} including amounts withheld.
PUT /forms/1099/{formId} Update an existing 1099 form · Avalara Update a 1099 Form #
Ask an LLM
“Can I correct the payment amounts on a 1099 form I already created?”
“Is it possible to change the payee on an existing 1099?”
Tell an agent
Update 1099 form {formId} with amounts {amounts}.
Change the state tax withheld on 1099 form {formId} to {stateTaxWithheld}.
DELETE /forms/1099/{formId} Delete a 1099 form · Avalara Delete a 1099 Form #
Ask an LLM
“Can I remove a 1099 form I created by mistake?”
“What happens if I delete a draft 1099 information return?”
Tell an agent destructive · confirm first
Delete 1099 form {formId}.
Remove the duplicate 1099 form {formId} from my account.

Documentation

📖
Documentation
https://developer.avalara.com/api-reference/avatax/rest/v2/
📖
Documentation
https://developer.avalara.com/api-reference/communications/v2/
📖
Documentation
https://developer.avalara.com/api-reference/excise/v1/
📖
Documentation
https://developer.avalara.com/api-reference/item-classification/v2/
📖
Documentation
https://developer.avalara.com/api-reference/avatax-brazil/v1/
📖
Documentation
https://developer.avalara.com/api-reference/vat-reporting/v1/
📖
Documentation
https://developer.avalara.com/api-reference/myLodgeAPI/tax/
📖
Documentation
https://developer.avalara.com/api-reference/CertCapture/v2/
📖
Documentation
https://developer.avalara.com/api-reference/e-invoicing/v1.0
📖
Documentation
https://developer.avalara.com/api-reference/activationService/activationService/
📖
Documentation
https://developer.avalara.com/api-reference/business/v1/
📖
Documentation
https://developer.avalara.com/api-reference/oauth/oauth/
📖
Documentation
https://developer.avalara.com/api-reference/sharedservice/sharedCompanyService/
📖
Documentation
https://developer.avalara.com/api-reference/hscodeclassification/hscodeclassification/
📖
Documentation
https://developer.avalara.com/api-reference/avalara1099/avalara1099/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/avalara/refs/heads/main/openapi/avalara-1099-forms-api-openapi.yml
⚙
AsyncAPI
https://raw.githubusercontent.com/api-evangelist/avalara/refs/heads/main/asyncapi/avalara-certcapture-sqs-asyncapi.yml

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OpenAPI Specification

avalara-1099-forms-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Avalara 1099 & W-9 1099 Forms 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: 1099 Forms
  description: Create and manage 1099 information returns
paths:
  /forms/1099:
    post:
      operationId: create1099Form
      summary: Avalara Create a 1099 Form
      description: Creates a new 1099 information return form with payee and payment information.
      tags:
      - 1099 Forms
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Form1099'
      responses:
        '201':
          description: 1099 form created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Form1099'
    get:
      operationId: list1099Forms
      summary: Avalara List 1099 Forms
      tags:
      - 1099 Forms
      parameters:
      - name: taxYear
        in: query
        schema:
          type: integer
      - name: formType
        in: query
        schema:
          type: string
          enum:
          - 1099-NEC
          - 1099-MISC
          - 1099-K
          - 1099-INT
          - 1099-DIV
          - 1099-R
          - 1099-B
      - name: status
        in: query
        schema:
          type: string
      - name: $top
        in: query
        schema:
          type: integer
      - name: $skip
        in: query
        schema:
          type: integer
      responses:
        '200':
          description: List of 1099 forms
  /forms/1099/{formId}:
    get:
      operationId: get1099Form
      summary: Avalara Get a 1099 Form by ID
      tags:
      - 1099 Forms
      parameters:
      - name: formId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: 1099 form details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Form1099'
    put:
      operationId: update1099Form
      summary: Avalara Update a 1099 Form
      tags:
      - 1099 Forms
      parameters:
      - name: formId
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Form1099'
      responses:
        '200':
          description: 1099 form updated
    delete:
      operationId: delete1099Form
      summary: Avalara Delete a 1099 Form
      tags:
      - 1099 Forms
      parameters:
      - name: formId
        in: path
        required: true
        schema:
          type: string
      responses:
        '204':
          description: Form deleted
components:
  schemas:
    Form1099:
      type: object
      properties:
        id:
          type: string
        formType:
          type: string
          enum:
          - 1099-NEC
          - 1099-MISC
          - 1099-K
          - 1099-INT
          - 1099-DIV
          - 1099-R
          - 1099-B
        taxYear:
          type: integer
        payerCompanyId:
          type: string
        payee:
          type: object
          properties:
            name:
              type: string
            tin:
              type: string
            address:
              type: object
              properties:
                line1:
                  type: string
                city:
                  type: string
                state:
                  type: string
                postalCode:
                  type: string
        amounts:
          type: object
          additionalProperties:
            type: number
            format: double
          description: Box amounts keyed by box number
        federalTaxWithheld:
          type: number
          format: double
        stateTaxWithheld:
          type: number
          format: double
        status:
          type: string
          enum:
          - Draft
          - Ready
          - Filed
          - Corrected
        createdDate:
          type: string
          format: date-time
        modifiedDate:
          type: string
          format: date-time
  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/