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We currently support uploading only a _single_ `IncomeCertification` at a time. If multiple `IncomeCertifications` are uploaded over subsequent requests, we will only use the _most recent_ `IncomeCertification` for Assessment operations and `Borrower` responses.

We want to support a future use case where multiple `IncomeCertifications` may be uploaded and a subset of those documents chosen by a `Borrower` as the documentation to submit with their IDR Enrollment Request. To avoid changes to the API in the future, this is why a `Borrower` response provides the `income_certifications` property as an array.

Use [`IncomeCertificationPayload`](🔗) for API `POST`, `PUT`, and `PATCH` requests

When creating and updating a `Borrower` with supporting Income Certification document(s), you must use an [`IncomeCertificationPayload`](🔗) as your payload in the _singular_ `income_certification` property of a [`BorrowerPayload`](🔗) payload.

When a `Borrower` is returned by the API, the `Borrower` object will hold a _plural_ `income_certifications` property with `IncomeCertification`(s) within.

### Schema Definition

`id``integer``int64`The ID value of the `IncomeCertification` file uploaded for a `Borrower`.
`inserted_at``string``date-time`A `DateTime` string that indicates when the `IncomeCertification` was first uploaded to our API.
`type``string``pay_stub` `tax_return` `determination_summary`The type of supporting income/unemployment documentation uploaded for Enrollment or recertification.

### Example