Version: 1.7.3

Webhook

Webhooks notify your system whenever there is a status update on a recipient’s Form W-9 submission. The webhook payload includes key data such as the recipient’s name, address, TIN, and a secure download link for the completed form.

For detailed information, Click here.

Configure the Webhook for W-9 Status

Log in to the developer console.
- Sandbox: sandbox.taxbandits.com
- Live: console.taxbandits.com
Navigate to Settings >> Webhooks.
Click ‘Add Webhook’. Choose the event type as ‘Form W-9 Status Change’.

Webhook Settings

Add Webhook

Enter your Callback URL where you want to receive notifications and click Save. You can add up to 5 Webhook URLs and choose the Callback URL to which the webhook response needs to be posted.
Upon saving a webhook in TaxBandits, a unique Webhook Reference (GUID) is generated for each Callback URL you register.

Store these Webhook References on your end. When making API requests (e.g., to the FormW9/RequestByUrl endpoint), you can specify the preferred Callback URL by including the corresponding WebhookRef in the request JSON.

The WebhookRef node is optional. If you provide a WebhookRef, the webhook notifications for that request will be sent to the Callback URL tied to the specified Webhook Reference.

If you do not specify a WebhookRef, webhook notifications will be sent to your default Callback URL (usually Callback URL 1).

Ensure your callback URL is valid and publicly accessible. Upon saving, the API sends a sample JSON payload to your callback URL.

Your server must respond with HTTP status code 200 to keep the webhook active.

If your callback URL does not return HTTP 200, the webhook will become inactive. You can retry posting sample data to reactivate it.

By default, the webhook response will include the recipient’s TIN. If you prefer not to include the TIN, you can adjust this preference in the console. See how

Response Body

Field	Type	Description
SubmissionId	Guid	A Unique identifier of a submission
WebhookRef	Guid	A unique identifier of the Webhook that TaxBandits generates against each Callback URL when adding it in the console site. If you pass the WebhookRef in the request JSON, we will post the webhook response to the corresponding Callback URL. If you don't pass one, the webhook response will be posted to the default Callback URL.
Requester	object	Requester information.
BusinessId	Guid	A Unique identifier of a business
BusinessNm	String	Requester Name. If the requester is a Business, then the Business Name will be returned. If the requester is an Individual, then the Payer’s full name will be returned.
FirstNm	string	First Name of the Individual
MiddleNm	string	Middle Name of the Individual
LastNm	string	Last Name of the individual
Suffix	string	Suffix of the Individual
TINType	string	TIN Type of the Requester.
TIN	string	Taxpayer Identification Number of the requester.
DBAId	Guid	Unique Identifier for the DBA.
DBARef	Guid	Unique identifier for each DBA. This identifier can be used in future references of the DBA in the API
PayeeRef	string	A Unique identifier of the recipient
W9Status	string	RecordStatus Status of the W-9
StatusTs	string	Timestamp of the W-9 Status.
TINMatching	Object	TIN Matching information.
Status	String	TIN Matching status.
StatusTs	String	Timestamp of the TIN Matching Status.
StatusMsg	String	Status message of the TIN Matching.
Errors	object[]	Shows the detailed error message.
FormW9RequestType	string	Form W-9 requested Type. URL_API - Form W-9 was requested using the RequestByURL method. Email_API - Form W-9 was requested using the RequestByEmail method.
PdfUrl	string	URL to download the completed W-9. Note: This URL will expire in 24 hours. This URL is encrypted by default. Follow these steps to decrypt the URL. If you'd like to have a decrypted URL by default, you can configure the preferences in Developer Console -> Settings -> W-9/W-8 Preferences.
Email	string	Email address of the recipient. This is the email to which the W-9 request was sent.(The value will be null if the Form W-9 was requested using the RequestByUrl method).
FormData	object	Form W-9 details of the recipient.
Line1Nm	string	Name as shown on the income tax return.
Line2Nm	string	Business name/disregarded entity name, if different from Line1 Name.
FirstNm	string	First Name of the Individual
MiddleNm	string	Middle Name of the Individual
LastNm	string	Last Name of the individual
Suffix	string	Suffix of the Individual
TINType	string	TIN type of the recipient
TIN	string	Recipient’s TIN.
Address	object	Recipient’s complete address
Address1	string	Recipient’s Address 1 (street address or post office box of that locality). This will be pre-filled on the Form.
Address2	string	Recipient’s Address 2 (suite or apartment number). This will be pre-filled on the Form.
City	string	Recipient’s City
State	string	Recipient’s State
ZipCd	string	Recipient’s Zip Code
Country	string	Recipient's country code. Refer to Static values. Size Range: 2 Allowed values "AF", "AX", "AL", "AG", "AQ", "AN", "AO", "AV", "AY", "AC", "AR", "AM", "AA", "AT", "AS", "AU", "AJ", "BF", "BA", "FQ", "BG", "BB", "BO", "BE", "BH", "BN", "BD", "BT", "BL", "BK", "BC", "BV", "BR", "IO", "VI", "BX", "BU", "UV", "BM", "BY", "CB", "CM", "CA", "CV", "CJ", "CT", "CD", "CI", "CH", "KT", "IP", "CK", "CO", "CN", "CF", "CG", "CW", "CR", "CS", "IV", "HR", "CU", "UC", "CY", "EZ", "DA", "DX", "DJ", "DO", "DR", "TT", "EC", "EG", "ES", "EK", "ER", "EN", "ET", "FK", "FO", "FM", "FJ", "FI", "FR", "FP", "FS", "GB", "GA", "GG", "GM", "GH", "GI", "GR", "GL", "GJ", "GQ", "GT", "GK", "GV", "PU", "GY", "HA", "HM", "VT", "HO", "HK", "HQ", "HU", "IC", "IN", "ID", "IR", "IZ", "EI", "IS", "IT", "JM", "JN", "JA", "DQ", "JE", "JQ", "JO", "KZ", "KE", "KQ", "KR", "KN", "KS", "KV", "KU", "KG", "LA", "LG", "LE", "LT", "LI", "LY", "LS", "LH", "LU", "MC", "MK", "MA", "MI", "MY", "MV", "ML", "MT", "IM", "RM", "MR", "MP", "MX", "MQ", "MD", "MN", "MG", "MJ", "MH", "MO", "MZ", "WA", "NR", "BQ", "NP", "NL", "NC", "NZ", "NU", "NG", "NI", "NE", "NF", "CQ", "NO", "MU", "OC", "PK", "PS", "LQ", "PM", "PP", "PF", "PA", "PE", "RP", "PC", "PL", "PO", "RQ", "QA", "RO", "RS", "RW", "TB", "RN", "WS", "SM", "TP", "SA", "SG", "RI", "SE", "SL", "SN", "NN", "LO", "SI", "BP", "SO", "SF", "SX", "OD", "SP", "PG", "CE", "SH", "SC", "ST", "SB", "VC", "SU", "NS", "SV", "WZ", "SW", "SZ", "SY", "TW", "TI", "TZ", "TH", "TO", "TL", "TN", "TD", "TS", "TU", "TX", "TK", "TV", "UG", "UP", "AE", "UK", "UY", "UZ", "NH", "VE", "VM", "VQ", "WQ", "WF", "WI", "YM", "ZA", "ZI"
AccountNum	string	Recipient’s account number. You can use this field to enter any identification number you have for the recipient.
FederalTaxClassification	string	U.S. Federal Tax Classification of the person whose name is entered on line 1
IsLine3b	Boolean	If TRUE, identifies that the recipient is Either a partnership, trust or estate that has foreign partners, owners, or beneficiaries and the recipient is providing this form to a partnership, trust, or estate, in which they have an ownership interest. (or) Received a Form W-8 from any partner, owner, or beneficiary establishing foreign status (or) Received a Form W-9 from any partner, owner, or beneficiary that has checked the box on line 3b.
ExemptPayeeCd	string	This code identifies recipients that are exempt from backup withholding.
ExemptFromFATCA	string	This code identifies recipients that are exempt from reporting under FATCA.
IsBackUpWH	Boolean	When true, identifies the recipient is subject to backup withholding. The completed Form W-9 PDF will have the item 2 under Part II crossed out. When false, identifies the recipient is not subject to backup withholding.
IsDAExemptBroker	Boolean	When true, identifies the recipient is exempt from information reporting as a U.S. digital asset broker within the meaning of Regulations section 1.6045-1(g)(4)(i)(A)(1)
Errors	Object[]	Detailed error information.
Id	string	Error ID number. This ID is assigned by TaxBandits and it is unique for each error.
Name	string	Name of the errored node.
Message	string	Shows the error message

Scenario 1: Recipient completes Form W-9, status changes to ‘Completed and TIN Matching In Progress’. You receive a webhook notification with the status update. PdfUrl is included to download the completed form.

{
  "SubmissionId": "75838ff2-8e57-49eb-8fa0-3d8d7ca4c006",
  "WebhookRef":"99db0874-e749-48d6-b96f-de6447d03667",
  "Requester": {
    "BusinessId": "7b0e44d7-17f1-4dc8-87a2-5e4d18b10929",
    "PayerRef": "Pay140054",
    "BusinessNm": "Snowdaze LLC",
    "FirstNm": null,
    "MiddleNm": null,
    "LastNm": null,
    "Suffix": null,
    "TINType": "EIN",
    "TIN": "86-5923037",
    "DBAId": null,
    "DBARef": null
  },
  "PayeeRef": "pay2147",
  "RecipientId": "17c639fe-14f2-46ca-9e74-a510a47eb1d5",
  "W9Status": "COMPLETED_AND_TIN_MATCH_INPROGRESS",
  "StatusTs": "2024-07-30 05:04:35 -04:00",
  "TINMatching": {
    "Status": "ORDER_CREATED",
    "StatusTs": "2024-07-30 05:04:36 -04:00",
    "StatusMsg": null,
    "Errors": null
  },
  "FormW9RequestType": "URL_API",
  "PdfUrl": "https://s3.amazonaws.com/taxbandits-sb-api/7cc37d30-d645-408d-986f-6ee79b91adfc.Pdf",
  "Email": null,
  "FormData": {
    "Line1Nm": "michal k william Jr",
    "Line2Nm": null,
    "FirstNm": "michal",
    "MiddleNm": "k",
    "LastNm": "william",
    "Suffix": "Jr",
    "TINType": "SSN",
    "TIN": "665-74-5684",
    "Address": {
      "Address1": "71 SAINT NICHOLAS DR",
      "Address2": null,
      "City": "NORTH POLE",
      "State": "AK",
      "ZipCd": "99705-7752"
    },
    "AccountNum": "42526325",
    "FederalTaxClassification": "Individual or Sole proprietor or Single-member LLC",
    "IsLine3b": false,
    "ExemptPayeeCd": null,
    "ExemptFromFATCA": null,
    "IsBackUpWH": false,
    "IsDAExemptBroker": true
  },
  "Errors": null
}

Scenario 2: Recipient completes Form W-9, status changes to ‘Completed with successful TIN Matching’. Webhook notifies your system. PdfUrl included for download.

{
  "SubmissionId": "75838ff2-8e57-49eb-8fa0-3d8d7ca4c006",
  "WebhookRef": null,
  "Requester": {
    "BusinessId": "7b0e44d7-17f1-4dc8-87a2-5e4d18b10929",
    "PayerRef": "Pay140054",
    "BusinessNm": "Snowdaze LLC",
    "FirstNm": null,
    "LastNm": null,
    "MiddleNm": null,
    "Suffix": null,
    "TINType": "EIN",
    "TIN": "XX-XXX3037",
    "DBAId": null,
    "DBARef": null
  },
  "PayeeRef": "pay2147",
  "RecipientId": "17c639fe-14f2-46ca-9e74-a510a47eb1d5",
  "W9Status": "COMPLETED",
  "StatusTs": "2024-07-30 05:19:49 -04:00",
  "TinMatching": {
    "Status": "SUCCESS",
    "StatusTs": "2024-07-30 05:19:48 -04:00",
    "StatusMsg": null,
    "Errors": null
  },
  "FormW9RequestType": "URL_API",
  "PdfUrl": "https://s3.amazonaws.com/taxbandits-dev-api/7cc37d30-d645-408d-986f-6ee79b91adfc.Pdf",
  "Email": null,
  "FormData": {
    "Line1Nm": null,
    "Line2Nm": null,
    "FirstNm": "michal",
    "LastNm": "william",
    "MiddleNm": "k",
    "Suffix": "Jr",
    "TINType": "SSN",
    "TIN": "665-74-5684",
    "Address": {
      "Address1": "71 SAINT NICHOLAS DR",
      "Address2": null,
      "City": "NORTH POLE",
      "State": "AK",
      "ZipCd": "99705-7752"
    },
    "AccountNum": "42526325",
    "FederalTaxClassification": "Individual or Sole proprietor or Single-member LLC",
    "IsLine3b": false,
    "ExemptPayeeCd": null,
    "ExemptFromFATCA": null,
    "IsBackUpWH": false,
    "IsDAExemptBroker": true,
    "OtherDescription": null
  },
  "Errors": null
}

Scenario 3: Recipient completes Form W-9, status changes to INVALID due to TIN Matching failure. Webhook notification sent. PdfUrl still provided for reference.

{
"SubmissionId": "4a36dc14-f059-4c89-83cd-ff9e350ed0a0",
"WebhookRef": null,
"Requester": {
  "BusinessId": "7746f0cd-e8eb-4428-9240-12ea84160ee8",
  "BusinessNm": "Snowdaze LLC",
  "TINType": "EIN",
  "TIN": "22-2222222"
},
"PayeeRef": "Pe123451234",
"W9Status": "INVALID",
"StatusTs": "2025-02-19 14:36:28 -04:00",
"TINMatching": {
  "Status": "Failed",
  "StatusTs": "2025-06-10 07:16:01 -04:00",
  "StatusMsg": null,
  "Errors": null
},
"FormW9RequestType": "URL_API",
"PdfUrl": "https://taxbandits-sb-api.s3.amazonaws.com/sample/807f0318-7f5a-4841-9c08-a88b4bf7e7d9.pdf",
"Email": "sample@bodeem.com",
"FormData": {
  "Line1Nm": "ABC Inc",
  "Line2Nm": null,
  "TINType": "EIN",
  "TIN": "11-1111111",
  "Address": {
    "Address1": "123 E. Main St",
    "Address2": "Suite 400",
    "City": "Rock Hill",
    "State": "SC",
    "ZipCd": "29730"
  },
  "AccountNum": "42526326",
  "FederalTaxClassification": "C Corporation",
  "IsLine3b": true,
  "ExemptPayeeCd": "5",
  "ExemptFromFATCA": "E",
},
"Errors": null
}

Scenario 4: The recipient has completed Form W-9 but has not provided the TIN, so the status has changed to ‘AWAITING_TIN_CERTIFICATE’. A reminder will be sent via Webhook before the expiration date. PdfUrl is provided to download the completed Form W-9.

{
  "SubmissionId": "75838ff2-8e57-49eb-8fa0-3d8d7ca4c006",
  "WebhookRef": null,
  "Requester": {
    "BusinessId": "7b0e44d7-17f1-4dc8-87a2-5e4d18b10929",
    "PayerRef": "Pay140054",
    "BusinessNm": "Snowdaze LLC",
    "FirstNm": null,
    "LastNm": null,
    "MiddleNm": null,
    "Suffix": null,
    "TINType": "EIN",
    "TIN": "XX-XXX3037",
    "DBAId": null,
    "DBARef": null
  },
  "PayeeRef": "pay2147",
  "RecipientId": "17c639fe-14f2-46ca-9e74-a510a47eb1d5",
  "W9Status": "AWAITING_TIN_CERTIFICATE",
  "ExpireDate": "07-30-2024",
  "StatusTs": "2024-07-30 05:19:49 -04:00",
  "TinMatching": null,
  "FormW9RequestType": "URL_API",
  "PdfUrl": "https://s3.amazonaws.com/taxbandits-dev-api/7cc37d30-d645-408d-986f-6ee79b91adfc.Pdf",
  "Email": null,
  "FormData": {
    "Line1Nm": null,
    "Line2Nm": null,
    "FirstNm": "michal",
    "LastNm": "william",
    "MiddleNm": "k",
    "Suffix": "Jr",
    "TINType": "SSN",
    "TIN": "665-74-5684",
    "Address": {
      "Address1": "71 SAINT NICHOLAS DR",
      "Address2": null,
      "City": "NORTH POLE",
      "State": "AK",
      "ZipCd": "99705-7752"
    },
    "AccountNum": "42526325",
    "FederalTaxClassification": "Individual or Sole proprietor or Single-member LLC",
    "IsLine3b": false,
    "ExemptPayeeCd": null,
    "ExemptFromFATCA": null,
    "IsBackUpWH": false,
    "IsDAExemptBroker": true,
    "OtherDescription": null
  },
  "Errors": null
}

Scenario 5: No reference ID has been passed in the WebhookRef node of the request. The recipient has completed Form W-9, has provided the ITIN and TIN Matching as true and Status is updated as ‘SUCCESS’. The payload will be posted to the default Callback URL, i.e., Callback URL 1.

{
  "SubmissionId": "617140eb-7de8-4259-98ac-14776eef249b",
  "WebhookRef":"99db0874-e749-48d6-b96f-de6447d03667",
  "Requester": {
    "BusinessId": "51cd2f9f-046c-47c4-988f-7f83c2bdd3ee",
    "PayerRef": null,
    "BusinessNm": "James Smith",
    "FirstNm": "James",
    "MiddleNm": null,
    "LastNm": "Smith",
    "Suffix": null,
    "TINType": "SSN",
    "TIN": "XXX-XX-6767",
    "DBAId": null,
    "DBARef": null
  },
  "PayeeRef": "Pe6999",
  "RecipientId": "22971d38-4349-4ee0-9e1b-97ab82a740eb",
  "W9Status": "COMPLETED",
  "ExpireDate": null,
  "StatusTs": "2025-10-12 00:37:23 -04:00",
  "TINMatching": {
    "Status": "SUCCESS",
    "StatusTs": "2025-10-12 00:37:23 -04:00",
    "StatusMsg": null,
    "Errors": null
  },
  "FormW9RequestType": "URL_API",
  "PdfUrl": "https://s3.amazonaws.com/taxbandits-dev-api/b0c4e691-89dd-45d9-8aab-160ae31eec0a.Pdf",
  "Email": null,
  "FormData": {
    "Line1Nm": "Henry David",
    "Line2Nm": "Technologic",
    "FirstNm": "Henry",
    "MiddleNm": null,
    "LastNm": "David",
    "Suffix": null,
    "TINType": "ITIN",
    "TIN": "XXX-XX-7734",
    "Address": {
      "Address1": "2603 Kinsey Road",
      "Address2": "Main Street",
      "City": "DOTHAN",
      "State": "AL",
      "ZipCd": "36303",
      "Country": "US"
    },
    "AccountNum": null,
    "FederalTaxClassification": "Individual or Sole proprietor or Single-member LLC",
    "IsLine3b": false,
    "ExemptPayeeCd": null,
    "ExemptFromFATCA": null,
    "IsBackUpWH": false,
    "IsDAExemptBroker": true,
  },
  "Errors": null
}

W-9/W-8 Automation

1099 Automation

TIN Matching

W-2 Automation

941/940 Automation

1098-T Automation

ACA Automation

Extension Automation

1042-S Automation

Supported Forms

Gig Software

Payroll Software

Affiliate Software

HOA Software

Reselling Platform

HCM Providers

Property Management

Healthcare Market Research Platforms

Webhook

Configure the Webhook for W-9 Status​

Response Body​

Scenario 1: Recipient completes Form W-9, status changes to ‘Completed and TIN Matching In Progress’. You receive a webhook notification with the status update. PdfUrl is included to download the completed form.​

Scenario 2: Recipient completes Form W-9, status changes to ‘Completed with successful TIN Matching’. Webhook notifies your system. PdfUrl included for download.​

Scenario 3: Recipient completes Form W-9, status changes to INVALID due to TIN Matching failure. Webhook notification sent. PdfUrl still provided for reference.​

Scenario 4: The recipient has completed Form W-9 but has not provided the TIN, so the status has changed to ‘AWAITING_TIN_CERTIFICATE’. A reminder will be sent via Webhook before the expiration date. PdfUrl is provided to download the completed Form W-9.​

Scenario 5: No reference ID has been passed in the WebhookRef node of the request. The recipient has completed Form W-9, has provided the ITIN and TIN Matching as true and Status is updated as ‘SUCCESS’. The payload will be posted to the default Callback URL, i.e., Callback URL 1.​