diff --git a/shared/requests/submit.yaml b/shared/requests/submit.yaml
index d2f6744..bea7175 100644
--- a/shared/requests/submit.yaml
+++ b/shared/requests/submit.yaml
@@ -90,6 +90,7 @@ components:
               EscrowCreate: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
               EscrowFinish: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
               Clawback: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+              DepositPreauth: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
           oneOf:
             - $ref: '../transactions/payment.yaml#/components/schemas/PaymentTransactionV1'
             - $ref: '../transactions/oracle_set.yaml#/components/schemas/OracleSetTransaction'
@@ -113,6 +114,7 @@ components:
             - $ref: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
             - $ref: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
             - $ref: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+            - $ref: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
             # TODO: Add other transaction types here
 
           description: 'Transaction definition in JSON format, optionally omitting any auto-fillable fields.'
@@ -151,6 +153,7 @@ components:
               EscrowCreate: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
               EscrowFinish: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
               Clawback: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+              DepositPreauth: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
           oneOf:
             - $ref: '../transactions/payment.yaml#/components/schemas/PaymentTransactionV2'
             - $ref: '../transactions/oracle_set.yaml#/components/schemas/OracleSetTransaction'
@@ -174,6 +177,7 @@ components:
             - $ref: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
             - $ref: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
             - $ref: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+            - $ref: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
             # TODO: Add other transaction types here
           description: 'Transaction definition in JSON format, optionally omitting any auto-fillable fields.'
       required:
@@ -271,6 +275,7 @@ components:
               EscrowCreate: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
               EscrowFinish: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
               Clawback: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+              DepositPreauth: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
               # TODO: Add other transaction types here
           oneOf:
             - $ref: '../transactions/payment.yaml#/components/schemas/PaymentTransactionV1'
@@ -295,6 +300,7 @@ components:
             - $ref: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
             - $ref: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
             - $ref: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+            - $ref: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
             # TODO: Add other transaction types here
 
     SubmitSuccessResponseV2:
@@ -328,6 +334,7 @@ components:
               EscrowCreate: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
               EscrowFinish: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
               Clawback: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+              DepositPreauth: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
               # TODO: Add other transaction types here
           oneOf:
             - $ref: '../transactions/payment.yaml#/components/schemas/PaymentTransactionV2'
@@ -352,6 +359,7 @@ components:
             - $ref: '../transactions/escrow_create.yaml#/components/schemas/EscrowCreateTransaction'
             - $ref: '../transactions/escrow_finish.yaml#/components/schemas/EscrowFinishTransaction'
             - $ref: '../transactions/clawback.yaml#/components/schemas/ClawbackTransaction'
+            - $ref: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthTransaction'
             # TODO: Add other transaction types here
 
     SubmitErrorResponse:
@@ -375,6 +383,7 @@ components:
             - $ref: '../transactions/did_delete.yaml#/components/schemas/DIDDeleteErrorCode'
             - $ref: '../transactions/did_set.yaml#/components/schemas/DIDSetErrorCode'
             - $ref: '../transactions/clawback.yaml#/components/schemas/ClawbackErrorCode'
+            - $ref: '../transactions/deposit_preauth.yaml#/components/schemas/DepositPreauthErrorCode'
             - enum:
                 - amendmentBlocked
                 - highFee
diff --git a/shared/transactions/deposit_preauth.yaml b/shared/transactions/deposit_preauth.yaml
new file mode 100644
index 0000000..be600c7
--- /dev/null
+++ b/shared/transactions/deposit_preauth.yaml
@@ -0,0 +1,78 @@
+components:
+  schemas:
+    DepositPreauthTransaction:
+      $id: DepositPreauthTransaction
+      allOf:
+        - $ref: '../base.yaml#/components/schemas/BaseTransaction'
+      type: object
+      description: |
+        A DepositPreauth transaction grants preauthorization to deliver payments to your account. This is
+        only useful if you are using (or plan to use) Deposit Authorization.
+      properties:
+        Authorize:
+          type: string
+          description: |
+            (Optional) An account to preauthorize.
+        AuthorizeCredentials:
+          type: array
+          items:
+            $ref: '#/components/schemas/AuthorizeCredentials'
+          description: |
+            (Optional) A set of credentials to authorize. (Requires the Credentials amendment.)
+        Unauthorize:
+          type: string
+          description: |
+            (Optional) An account whose preauthorization should be revoked.
+        UnauthorizeCredentials:
+          type: array
+          items:
+            $ref: '#/components/schemas/AuthorizeCredentials'
+          description: |
+            (Optional) A set of credentials whose preauthorization should be revoked. (Requires the
+            Credentials amendment.)
+      x-custom-validation:
+        requireOneOf:
+          - fields:
+              - Authorize
+              - AuthorizeCredentials
+              - Unauthorize
+              - UnauthorizeCredentials
+            message: 'You must provide exactly one of Authorize, AuthorizeCredentials, Unauthorize, or UnauthorizeCredentials.'
+    AuthorizeCredentials:
+      $id: AuthorizeCredentials
+      type: object
+      description: |
+        Represents a credential used for preauthorization.
+      required:
+        - Issuer
+        - CredentialType
+      properties:
+        Issuer:
+          type: string
+          description: |
+            (Required) The issuer of the credential.
+        CredentialType:
+          type: string
+          format: hexadecimal
+          description: |
+            (Required) The credential type of the credential.
+    DepositPreauthErrorCode:
+      $id: DepositPreauthErrorCode
+      type: string
+      enum:
+        - tecDUPLICATE
+        - tecINSUFFICIENT_RESERVE
+        - tecNO_ENTRY
+        - tecNO_ISSUER
+        - tecNO_TARGET
+        - temCANNOT_PREAUTH_SELF
+        - temDISABLED
+      description: Enum representing possible error codes for DepositPreauth transactions.
+      x-enum-descriptions:
+        tecDUPLICATE: The transaction would create a preauthorization that already exists.
+        tecINSUFFICIENT_RESERVE: The sender would not meet the reserve requirement after adding another entry to the ledger. (A DepositPreauth entry counts as one item towards the authorizer's owner reserve.)
+        tecNO_ENTRY: The transaction tried to revoke a preauthorization that does not exist in the ledger.
+        tecNO_ISSUER: One or more specified credential issuers does not exist in the ledger.
+        tecNO_TARGET: The transaction tried to authorize an account that is not a funded account in the ledger.
+        temCANNOT_PREAUTH_SELF: The address in the Authorize field is the sender of the transaction. You cannot preauthorize yourself.
+        temDISABLED: A required amendment is not enabled.