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# Post-assignment

A **post-assignment** is a Bulk Bill Assignment of Benefit agreement the patient signs **after** the service. It is the straightforward path when you already hold the claim: the Medicare Benefits Schedule (MBS) items are known, and the agreement is built from the claim you would lodge.

New here? The [Assignment of Benefit overview](/assignment-of-benefit) explains how pre- and post-assignment differ, and covers signing and retention. This page is about post-assignment on its own.

<img src="https://files.buildwithfern.com/rebate-right.docs.buildwithfern.com/3a81ceeed145f1d4a5c456c963d8a610eefc30bda2754854ae6c137ba3d0cc2d/assets/aob-postassignment-preview.png" alt="A rendered post-assignment Bulk Bill Assignment of Benefit agreement in the general format: assignment type Post assignment, the MBS item number with its date, a past-tense assignor's statement, the Services Australia privacy notice, and a signature line." />

A **post-assignment** agreement (general format). Download the PDF.

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## When to reach for post-assignment

Post-assignment fits the common case, where the service is done and the claim is ready:

* the **service has been rendered** and the **MBS items are known**
* you already have the **bulk bill claim** assembled, so there is no separate agreement data to gather
* the patient agrees and signs **after** the service

If the patient needs to agree before the service (at booking or check-in), use [pre-assignment](/assignment-of-benefit/pre-assignment) instead.

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## What the agreement says

A post-assignment is written in the **past tense**: the patient assigns their benefit to the professional who **rendered** the service. It shows:

* the **MBS item number(s)** from your claim
* the **date** of the service, specimen collection, or imaging procedure
* the assignor's statement for the service stream (general, pathology, or diagnostic imaging), in the words Services Australia prescribes

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## Built from the claim you lodge

A post-assignment is your bulk bill claim, rendered as a signable agreement rather than lodged. You supply the claim you would send to Services Australia, plus the servicing provider's name. RebateRight produces **one agreement per patient visit**, each on its own page with its own signature line, so a claim covering several patients yields a batch to sign.

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## Signing and keeping it

The patient (or, where they cannot sign, a parent, guardian, or other responsible person) signs and dates each page. An electronic signature is fine. Keep the signed agreement and be able to produce it on request. The [overview](/assignment-of-benefit#signing-the-agreement) covers both in full.

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## For engineers

The request shape, fields, and runnable examples are in the [Post-assignment (PDF) endpoint reference](/api-reference/medicare-claiming/bulk-bill-claim/assignment-of-benefit/post-assignment-pdf).

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## Related

* [Assignment of Benefit overview](/assignment-of-benefit): pre vs post, and the shared obligations
* [Pre-assignment](/assignment-of-benefit/pre-assignment): the before-the-service counterpart
* [Bulk Bill Claim](/bulk-bill-claim): build the claim this renders from