---
updatedAt: 2026-07-17T13:12:27.000Z
agentTools:
  projectIndex: https://docs.moderntreasury.com/payments/llms.txt
---

# Required Fields for Businesses

Listed below is the required information for onboarding a business. These details must be included in your legal entity creation request. For more information on the onboarding process please refer to our [guide for onboarding businesses](https://docs.moderntreasury.com/payments/docs/onboard-a-business).

## Required Fields for Businesses

<Table align={["left","left","left","left"]}>
  <thead>
    <tr>
      <th>
        Required<br />Information
      </th>

      <th>
        Parameter
      </th>

      <th>
        Format
      </th>

      <th>
        Requirement
      </th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>
        Legal Business Name
      </td>

      <td>
        `business_name`
      </td>

      <td>
        String
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Doing Business As
      </td>

      <td>
        `doing_business_as_names`
      </td>

      <td>
        Array of Strings
      </td>

      <td>
        Required if different than Legal Business Name
      </td>
    </tr>

    <tr>
      <td>
        Entity Structure
      </td>

      <td>
        `legal_structure`
      </td>

      <td>
        String

        Possible Values:<br />`corporation`, `llc`, `non_profit`, `partnership`, `sole_proprietorship`, `trust`
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Nature of business (products and/or services the business offers)
      </td>

      <td>
        `business_description`
      </td>

      <td>
        String
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Physical Address
      </td>

      <td>
        `addresses`
      </td>

      <td>
        Array of [Addresses](https://docs.moderntreasury.com/platform/reference/address-object) - P.O. boxes are not accepted with `address_type` of `business` and `primary` marked as `true`
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Registered Address
      </td>

      <td>
        `addresses`
      </td>

      <td>
        Array of [Addresses](https://docs.moderntreasury.com/platform/reference/address-object) - P.O. boxes are not accepted with `address_type` of `business_registeredprimary` marked as `false`
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Date of Incorporation - YYYY-MM-DD format
      </td>

      <td>
        `date_formed`
      </td>

      <td>
        String
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Monthly Expected Transaction Volume Amount (USD)
      </td>

      <td>
        `expected_activity_volume`
      </td>

      <td>
        Integer
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Purpose of the Account
      </td>

      <td>
        `intended_use`
      </td>

      <td>
        String
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Employer<br />Identification<br />Number
      </td>

      <td>
        `identifications`
      </td>

      <td>
        [Identification](https://docs.moderntreasury.com/platform/reference/identifications) with `id_type` of `us_ein`
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Tax Identification Number
      </td>

      <td>
        `identifications`
      </td>

      <td>
        [Identification](https://docs.moderntreasury.com/platform/reference/identifications)
      </td>

      <td>
        Required for Non-U.S businesses. Not required when providing Employer Identification Number
      </td>
    </tr>

    <tr>
      <td>
        Proof of Address (utility bill, bank statement, lease, EIN letter, lease agreement)
      </td>

      <td>
        `documents`
      </td>

      <td>
        [Documents](https://docs.moderntreasury.com/platform/reference/document-object) with `document_type` of `proof_of_address` or an EIN letter attached as the `document` on an `identification` with `id_type` of `us_ein`


        These documents must have the meet the following freshness requirements at the time of submission:

        - EIN Letters must be less than 6 months old.
        - Other Proof of Address documents must be less than 3 months old.

        For more information please refer to our guide for [onboarding businesses](https://docs.moderntreasury.com/payments/docs/onboard-a-business#required-documents-for-businesses).
      </td>

      <td>
        Required
      </td>
    </tr>

    <tr>
      <td>
        Service Provider Legal Entity
      </td>

      <td>
        `service_provider_legal_entity_id`
      </td>

      <td>
        String (UUID) — The `id` of an existing legal entity that is the service provider (parent) of this legal entity in the service provider tree
      </td>

      <td>
        Optional — Required when onboarding a service customer (e.g., C2, C3) under an existing service provider
      </td>
    </tr>
  </tbody>
</Table>

<br />

## Required Fields for Beneficial Owner(s) and Control Person

| Required Information      | Parameter              | Format                                                                                                                | Beneficial Owner                                                                     | Control Person                                                                       |
| :------------------------ | :--------------------- | :-------------------------------------------------------------------------------------------------------------------- | :----------------------------------------------------------------------------------- | :----------------------------------------------------------------------------------- |
| First Name                | `first_name`           | String                                                                                                                | Required                                                                             | Required                                                                             |
| Middle Name               | `middle_name`          | String                                                                                                                | Required if applicable                                                               | Required if applicable                                                               |
| Last Name                 | `last_name`            | String                                                                                                                | Required                                                                             | Required                                                                             |
| Date of Birth             | `date_of_birth`        | String - YYYY-MM-DD format                                                                                            | Required                                                                             | Required                                                                             |
| Email Address             | `email`                | String                                                                                                                | Required                                                                             | Required                                                                             |
| Physical Address          | `addresses`            | Array of [Addresses](https://docs.moderntreasury.com/platform/reference/address-object) - P.O. boxes are not accepted | Required                                                                             | Required                                                                             |
| Country of Citizenship    | `citizenship_country`  | String                                                                                                                | Required for Non-U.S individuals. Not required when providing Social Security Number | Required for Non-U.S individuals. Not required when providing Social Security Number |
| Phone Number              | `phone_numbers`        | Array of phone numbers<br />in [E.164](https://en.wikipedia.org/wiki/E.164) format                                    | Required                                                                             | Required                                                                             |
| Ownership %               | `ownership_percentage` | String                                                                                                                | Required                                                                             | N/A                                                                                  |
| Social Security Number    | `identifications`      | [Identification](https://docs.moderntreasury.com/platform/reference/identifications) with `id_type` of `us_ssn`       | Required for U.S. Individuals                                                        | Required for U.S. Individuals                                                        |
| Tax Identification Number | `identifications`      | [Identification](https://docs.moderntreasury.com/platform/reference/identifications)                                  | Required for Non-U.S individuals. Not required when providing Social Security Number | Required for Non-U.S individuals. Not required when providing Social Security Number |

<br />
Required Information	Parameter	Format	Requirement
Legal Business Name	`business_name`	String	Required
Doing Business As	`doing_business_as_names`	Array of Strings	Required if different than Legal Business Name
Entity Structure	`legal_structure`	String Possible Values: `corporation`, `llc`, `non_profit`, `partnership`, `sole_proprietorship`, `trust`	Required
Nature of business (products and/or services the business offers)	`business_description`	String	Required
Physical Address	`addresses`	Array of [Addresses](https://docs.moderntreasury.com/platform/reference/address-object) - P.O. boxes are not accepted with `address_type` of `business` and `primary` marked as `true`	Required
Registered Address	`addresses`	Array of [Addresses](https://docs.moderntreasury.com/platform/reference/address-object) - P.O. boxes are not accepted with `address_type` of `business_registeredprimary` marked as `false`	Required
Date of Incorporation - YYYY-MM-DD format	`date_formed`	String	Required
Monthly Expected Transaction Volume Amount (USD)	`expected_activity_volume`	Integer	Required
Purpose of the Account	`intended_use`	String	Required
Employer Identification Number	`identifications`	[Identification](https://docs.moderntreasury.com/platform/reference/identifications) with `id_type` of `us_ein`	Required
Tax Identification Number	`identifications`	[Identification](https://docs.moderntreasury.com/platform/reference/identifications)	Required for Non-U.S businesses. Not required when providing Employer Identification Number
Proof of Address (utility bill, bank statement, lease, EIN letter, lease agreement)	`documents`	[Documents](https://docs.moderntreasury.com/platform/reference/document-object) with `document_type` of `proof_of_address` or an EIN letter attached as the `document` on an `identification` with `id_type` of `us_ein` These documents must have the meet the following freshness requirements at the time of submission: - EIN Letters must be less than 6 months old. - Other Proof of Address documents must be less than 3 months old. For more information please refer to our guide for [onboarding businesses](https://docs.moderntreasury.com/payments/docs/onboard-a-business#required-documents-for-businesses).	Required
Service Provider Legal Entity	`service_provider_legal_entity_id`	String (UUID) — The `id` of an existing legal entity that is the service provider (parent) of this legal entity in the service provider tree	Optional — Required when onboarding a service customer (e.g., C2, C3) under an existing service provider