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# TIN verification review tasks

> Understand the review tasks for TIN verification.

TIN verification results appear as review tasks on the Business object. This page describes their types, statuses, and messages.

## TIN match review task

Verify that the Tax Identification Number matches the business name in IRS records.

| status  | message                                                                             | sub_label   |
| ------- | ----------------------------------------------------------------------------------- | ----------- |
| Success | The IRS has a record for the submitted TIN and business name combination.           | Found       |
| Failure | Middesk believes the submitted TIN is associated with a different business name.    | Mismatch    |
| Failure | The IRS does not have a record for the submitted TIN and business name combination. | Not Found   |
| Failure | TIN/name failure-Duplicate request.                                                 | Duplicate   |
| Failure | TIN/name failure-IRS is unavailable.                                                | Unavailable |

If Middesk finds that a TIN is not issued, this response is appended:

| status  | message                                                                                                                             | sub_label  |
| ------- | ----------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| Failure | TIN has not been issued by the IRS. There is often a delay after formation for the IRS database to process TINs for new businesses. | Not Issued |

## tin_error review task

Identify errors that occurred during TIN verification.

| status  | message                                   | sub_label |
| ------- | ----------------------------------------- | --------- |
| Failure | An error occurred during TIN verification | Error     |

## tin_type review task

Verify the type of Tax Identification Number submitted (EIN vs SSN).

| status  | message                                                          | sub_label  |
| ------- | ---------------------------------------------------------------- | ---------- |
| Success | The TIN submitted is an EIN.                                     | Verified   |
| Success | The TIN submitted is an SSN.                                     | Verified   |
| Success | The TIN submitted is both an SSN and EIN.                        | Verified   |
| Failure | The TIN submitted is a match, but it is not an EIN.              | Unverified |
| Failure | The TIN submitted is a match, but it is not an SSN.              | Unverified |
| Failure | The TIN submitted is a match, but it is not both an SSN and EIN. | Unverified |

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