diff --git a/cuenca/__init__.py b/cuenca/__init__.py
index 38a31cc0..24a47108 100644
--- a/cuenca/__init__.py
+++ b/cuenca/__init__.py
@@ -3,6 +3,7 @@
     'ApiKey',
     'Account',
     'BalanceEntry',
+    'Commission',
     'Deposit',
     'Transfer',
     'WhatsappTransfer',
@@ -15,6 +16,7 @@
     Account,
     ApiKey,
     BalanceEntry,
+    Commission,
     Deposit,
     Transfer,
     WhatsappTransfer,
diff --git a/cuenca/resources/commissions.py b/cuenca/resources/commissions.py
index ccb61206..df7c8da5 100644
--- a/cuenca/resources/commissions.py
+++ b/cuenca/resources/commissions.py
@@ -1,12 +1,31 @@
-from typing import ClassVar, Optional
+from typing import ClassVar, Optional, cast
 
+from cuenca_validations.types import (
+    CommissionType,
+    EntryType,
+    RelatedTransaction,
+)
 from pydantic.dataclasses import dataclass
 
+from cuenca import resources
+
 from .base import Transaction
+from .resources import retrieve_uri
+
+mapper = {CommissionType.cash_deposit: EntryType.credit}
 
 
 @dataclass
 class Commission(Transaction):
     _resource: ClassVar = 'commissions'
 
-    related_transaction_uri: Optional[str]
+    type: CommissionType
+    related_transaction_uri: Optional[RelatedTransaction]
+
+    @property  # type: ignore
+    def related_transaction(self):
+        rt = self.related_transaction_uri
+        if not rt:
+            return None
+        resource = getattr(resources, rt.get_model())
+        return cast(resource, retrieve_uri(rt)) if resource else None
diff --git a/cuenca/version.py b/cuenca/version.py
index ce2b9d97..bbdfdb4c 100644
--- a/cuenca/version.py
+++ b/cuenca/version.py
@@ -1,3 +1,3 @@
-__version__ = '0.3.2'
+__version__ = '0.3.4'
 CLIENT_VERSION = __version__
 API_VERSION = '2020-03-19'
diff --git a/requirements.txt b/requirements.txt
index 1433a036..88f8dbab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 requests==2.24.0
-cuenca-validations==0.5.7
+cuenca-validations==0.6.2
 dataclasses>=0.7;python_version<"3.7"
 aws-requests-auth==0.4.3
diff --git a/tests/resources/cassettes/test_commission_retrieve.yaml b/tests/resources/cassettes/test_commission_retrieve.yaml
new file mode 100644
index 00000000..b8d23ddc
--- /dev/null
+++ b/tests/resources/cassettes/test_commission_retrieve.yaml
@@ -0,0 +1,53 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T182731Z
+    method: GET
+    uri: https://sandbox.cuenca.com/commissions/COXXX
+  response:
+    body:
+      string: '{"id":"COXXX","created_at":"2020-09-24T00:29:34.830000","user_id":"US2qz3mrAomlP8LWG106tILW","amount":25000,"status":"created","descriptor":"Comisi\u00f3n
+        (card_request)", "type": "cash_deposit","related_transaction_uri":null}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '220'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:27:35 GMT
+      Via:
+      - 1.1 73f86570b09a38dfaa856857b5578e7e.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - vytdtvve_zN6caN21ZDTayVxVQ2-d1rDKmoG02Ut1V04G2SOrxtzfg==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f761f95-7f1856a72145666d5107c55e;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - TvnfVGIEIAMFa_Q=
+      x-amzn-RequestId:
+      - ab9b3780-d7c6-4628-98cf-5553b3de80a1
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/resources/cassettes/test_commission_retrieve_witw_cash_deposit.yaml b/tests/resources/cassettes/test_commission_retrieve_witw_cash_deposit.yaml
new file mode 100644
index 00000000..374559c3
--- /dev/null
+++ b/tests/resources/cassettes/test_commission_retrieve_witw_cash_deposit.yaml
@@ -0,0 +1,104 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185704Z
+    method: GET
+    uri: https://sandbox.cuenca.com/commissions/COXXX
+  response:
+    body:
+      string: '{"id":"COXXX","created_at":"2020-09-30T19:38:33.361000","user_id":"USXXX","amount":1000,"status":"succeeded","descriptor":"Comisi\u00f3n
+        (cash_deposit)", "type": "cash_deposit","related_transaction_uri":"/deposits/CDXXX"}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:57:04 GMT
+      Via:
+      - 1.1 73f86570b09a38dfaa856857b5578e7e.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - qhDyaKeW0Ocibu9DAsgRAOGZDLKAh4Ch8h7bgUOzErlF2enEXVrNLw==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f762680-5dbf128e0175d0637dc90d9b;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - Tvr0KGBuoAMFvDw=
+      x-amzn-RequestId:
+      - f2476afc-8fb5-491f-ad79-2f365e55797d
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185705Z
+    method: GET
+    uri: https://sandbox.cuenca.com/deposits/CDXXX
+  response:
+    body:
+      string: '{"id":"CDXXX","created_at":"2020-09-30T19:38:29.234000","user_id":"USXXX","amount":2002,"status":"succeeded","descriptor":"Deposito
+        v\u00eda paynet auth 648695","source_uri":null,"network":"cash","tracking_key":null}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:57:05 GMT
+      Via:
+      - 1.1 73f86570b09a38dfaa856857b5578e7e.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - zWYNKGEjQ8P0PF_azgGX01euUv3Jl0T4dejiLXjDJdvQ4_FvG81F2A==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f762681-2c39d73d0760e8f37ffbe378;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - Tvr0OFKJIAMFYng=
+      x-amzn-RequestId:
+      - 1e7a83a6-88a1-443d-a175-1f35152b6cda
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/resources/cassettes/test_commission_retrieve_witw_cash_transfer.yaml b/tests/resources/cassettes/test_commission_retrieve_witw_cash_transfer.yaml
new file mode 100644
index 00000000..12420a64
--- /dev/null
+++ b/tests/resources/cassettes/test_commission_retrieve_witw_cash_transfer.yaml
@@ -0,0 +1,104 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185704Z
+    method: GET
+    uri: https://sandbox.cuenca.com/commissions/COXXX
+  response:
+    body:
+      string: '{"id":"COXXX","created_at":"2020-09-30T19:38:33.361000","user_id":"USXXX","amount":1000,"status":"succeeded","descriptor":"Comisi\u00f3n
+        (cash_transfer)", "type": "cash_deposit","related_transaction_uri":"/transfers/SP5XXX"}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:57:04 GMT
+      Via:
+      - 1.1 73f86570b09a38dfaa856857b5578e7e.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - qhDyaKeW0Ocibu9DAsgRAOGZDLKAh4Ch8h7bgUOzErlF2enEXVrNLw==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f762680-5dbf128e0175d0637dc90d9b;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - Tvr0KGBuoAMFvDw=
+      x-amzn-RequestId:
+      - f2476afc-8fb5-491f-ad79-2f365e55797d
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185705Z
+    method: GET
+    uri: https://sandbox.cuenca.com/transfers/SP5XXX
+  response:
+    body:
+      string: '{"id":"SP5XXX","created_at":"2020-05-08T23:12:25.042000","updated_at":"2020-05-08T23:12:28.854000","account_number":"646180157013244941","recipient_name":"test
+        85d91ea6-76b6-49ab-913b-0481e8df7379","amount":8888,"descriptor":"lambda","idempotency_key":"b2bf01cb-da5f-4a42-9462-23078b81b6ea","status":"failed","network":"spei","destination_uri":null,"tracking_key":null,"user_id":"USXXX"}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:57:05 GMT
+      Via:
+      - 1.1 73f86570b09a38dfaa856857b5578e7e.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - zWYNKGEjQ8P0PF_azgGX01euUv3Jl0T4dejiLXjDJdvQ4_FvG81F2A==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f762681-2c39d73d0760e8f37ffbe378;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - Tvr0OFKJIAMFYng=
+      x-amzn-RequestId:
+      - 1e7a83a6-88a1-443d-a175-1f35152b6cda
+    status:
+      code: 200
+      message: OK
+version: 1
\ No newline at end of file
diff --git a/tests/resources/cassettes/test_commission_retrieve_witw_deposit.yaml b/tests/resources/cassettes/test_commission_retrieve_witw_deposit.yaml
new file mode 100644
index 00000000..1dff755e
--- /dev/null
+++ b/tests/resources/cassettes/test_commission_retrieve_witw_deposit.yaml
@@ -0,0 +1,151 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185431Z
+    method: GET
+    uri: https://sandbox.cuenca.com/commissions/COXXX
+  response:
+    body:
+      string: '{"id":"COXXX","created_at":"2020-09-30T19:38:33.361000","user_id":"USXXX","amount":1000,"status":"succeeded","descriptor":"Comisi\u00f3n
+        (cash_deposit)", "type": "cash_deposit", "related_transaction_uri":"/deposits/CDXXX"}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:54:34 GMT
+      Via:
+      - 1.1 f1c5a27e35ac834b32534347282b3496.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - keCcR7RWtZwUkvvQwg179i-07LRC7irc-rhVOvYcIsDd-QRSspGFxg==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f7625e8-623fb6e2469d1fd105d95db2;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - TvrcRHKtoAMFzqg=
+      x-amzn-RequestId:
+      - ac8833e6-b241-41b5-b7cc-7a7c3b67cb3f
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-requests/2.24.0
+    method: GET
+    uri: https://sandbox.cuenca.com/config/route_configuration.json
+  response:
+    body:
+      string: "{\n    \"default_route\": \"/oaxaca\",\n    \"routes\": {\n       \
+        \ \"cards\": \"/knox\",\n        \"api_keys\": \"/authed\"\n    }\n}\n"
+    headers:
+      Accept-Ranges:
+      - bytes
+      Age:
+      - '1622'
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '114'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:27:33 GMT
+      ETag:
+      - '"f35b9f1de4b47e51d5a9b8706ef54e6b"'
+      Last-Modified:
+      - Tue, 15 Sep 2020 22:51:15 GMT
+      Server:
+      - AmazonS3
+      Via:
+      - 1.1 19934e8c827f304089a6e45a640882cd.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - qPWYfE69Ef2tZYj9FciaKOvxYaD84CHV1P-eeqRX8BLnX2Tspp3ufA==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Cache:
+      - Hit from cloudfront
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate
+      Authorization:
+      - DUMMY
+      Connection:
+      - keep-alive
+      User-Agent:
+      - cuenca-python/0.3.2
+      X-Cuenca-Api-Version:
+      - '2020-03-19'
+      x-amz-content-sha256:
+      - e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+      x-amz-date:
+      - 20201001T185434Z
+    method: GET
+    uri: https://sandbox.cuenca.com/deposits/CDXXX
+  response:
+    body:
+      string: '{"id":"CDXXX","created_at":"2020-09-30T19:38:29.234000","user_id":"USXXX","amount":2002,"status":"succeeded","descriptor":"Deposito
+        v\u00eda paynet auth 648695","source_uri":null,"network":"cash","tracking_key":null}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '254'
+      Content-Type:
+      - application/json
+      Date:
+      - Thu, 01 Oct 2020 18:54:34 GMT
+      Via:
+      - 1.1 f1c5a27e35ac834b32534347282b3496.cloudfront.net (CloudFront)
+      X-Amz-Cf-Id:
+      - cJdHs2JkvbhNt4_tcuMuHMgHScIR7FEg4WyK_LaD4oPc6tOri6ZbrA==
+      X-Amz-Cf-Pop:
+      - DFW55-C1
+      X-Amzn-Trace-Id:
+      - Root=1-5f7625ea-58076a0b771124a4530ef77a;Sampled=0
+      X-Cache:
+      - Miss from cloudfront
+      x-amz-apigw-id:
+      - TvrcrE9yoAMF4eQ=
+      x-amzn-RequestId:
+      - e45a9eba-29d6-4774-b463-3bf6e1295944
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/resources/test_commissions.py b/tests/resources/test_commissions.py
new file mode 100644
index 00000000..5422825d
--- /dev/null
+++ b/tests/resources/test_commissions.py
@@ -0,0 +1,33 @@
+import pytest
+
+from cuenca import Commission, Deposit, Transfer
+
+
+@pytest.mark.vcr
+def test_commission_retrieve():
+    id_commission = 'COXXX'
+    commission: Commission = Commission.retrieve(id_commission)
+    assert commission.id == id_commission
+    assert not commission.related_transaction
+
+
+@pytest.mark.vcr
+def test_commission_retrieve_witw_cash_deposit():
+    id_commission = 'COXXX'
+    commission: Commission = Commission.retrieve(id_commission)
+    assert commission.id == id_commission
+    related_transaction = commission.related_transaction
+    assert related_transaction
+    assert type(related_transaction) == Deposit
+    assert related_transaction.network == 'cash'
+
+
+@pytest.mark.vcr
+def test_commission_retrieve_witw_cash_transfer():
+    id_commission = 'COXXX'
+    commission: Commission = Commission.retrieve(id_commission)
+    assert commission.id == id_commission
+    related_transaction = commission.related_transaction
+    assert related_transaction
+    assert type(related_transaction) == Transfer
+    assert related_transaction.network == 'spei'