> ## Documentation Index
> Fetch the complete documentation index at: https://www.marqeta.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Add accounts to interest tier

> Adds multiple accounts to the specified interest tier in bulk.

PUT/v3/interestaccounts/interesttiers/\{interest\_tier\_token}/accounts

Adds multiple accounts to the specified interest tier in bulk.

## URL path parameters

| Fields | Description |
| - | - |
| interest\_tier\_token string  Required | Unique identifier of the interest tier, as returned by the `POST /v3/interestaccounts/interesttiers` endpoint. **Allowable Values:**  Existing interest tier token |

## Request body

Add accounts to interest tier request.

| Fields | Description |
| - | - |
| account\_tokens array of strings  Required | List of account tokens to enroll in the interest tier, as returned by the `POST /v4/depositaccounts` endpoint. **Allowable Values:**  1–200 account tokens  Example: \[  `"a1b2c3d4-e5f6-7890-abcd-ef1234567890"`,  `"b2c3d4e5-f6a7-8901-bcde-f12345678901"`,  `"c3d4e5f6-a7b8-9012-cdef-123456789012"`  ] |

## Sample request body

```json JSON expandable lines wrap theme={null}
{
  "account_tokens": [
    "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "b2c3d4e5-f6a7-8901-bcde-f12345678901",
    "c3d4e5f6-a7b8-9012-cdef-123456789012"
  ]
}
```

## Error codes

| Error Code | Error Message |
| - | - |
| `404000` | Resource not found |
| `404004` | Cardholder not found by token |
| `404917` | Program not configured for interest. |
| `500000` | Internal server error |

See [Errors](https://www.marqeta.com/docs/core-api/errors.md) for the complete list of error codes.


## Related topics

- [Add account to interest tier](https://www.marqeta.com/docs/core-api/interest-accounts/interest-tier-accounts/add-tier.md)
- [Interest Tier Accounts Overview](https://www.marqeta.com/docs/core-api/interest-accounts/interest-tier-accounts.md)
- [Interest Accounts Overview](https://www.marqeta.com/docs/core-api/interest-accounts.md)
- [Retrieve account interest tier](https://www.marqeta.com/docs/core-api/interest-accounts/interest-tier-accounts/retrieve-account-interest-tier.md)
- [Create interest tier](https://www.marqeta.com/docs/core-api/interest-accounts/interest-tiers/create-tier.md)