diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94659439..afb374f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,17 @@
+# dbt_stripe_source v0.12.1
+[PR [#81]](https://github.com/fivetran/dbt_stripe_source/pull/81) includes the following updates:
+
+## Feature Updates
+- Declaration of passthrough variables for the `stg_stripe__card` model. This can, for example, be used to pull in non-standard columns from Stripe such as `description`, `iin` and `issuer`.
+```yml
+# dbt_project.yml
+
+vars:
+  stripe_source:
+    card_pass_through_columns:
+      - name: "description"
+```
+
 # dbt_stripe_source v0.12.0
 
 [PR [#77](https://github.com/fivetran/dbt_stripe_source/pull/77)] includes the following updates:
diff --git a/README.md b/README.md
index 4c72f1a1..f4005c04 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,21 @@ vars:
     stripe__subscription_metadata: ['the', 'list', 'of', 'property', 'fields'] # Note: this is case-SENSITIVE and must match the casing of the property as it appears in the JSON
 ```
 
+#### Passing Through Additional Fields
+This package includes all source columns defined in the macros folder. You can add more columns using our pass-through column variables. These variables allow for the pass-through fields to be aliased (`alias`) and casted (`transform_sql`) if desired, but not required. Datatype casting is configured via a sql snippet within the `transform_sql` key. You may add the desired sql while omitting the `as field_name` at the end and your custom pass-though fields will be casted accordingly. Use the below format for declaring the respective pass-through variables:
+
+```yml
+# dbt_project.yml
+
+vars:
+  stripe_source:
+    card_pass_through_columns:
+      - name: "description"
+      - name: "iin"
+      - name: "issuer"
+        alias: "card_issuer"  # optional: define an alias for the column 
+```
+
 #### Change the build schema
 By default, this package builds the stripe staging models within a schema titled (`<target_schema>` + `_stg_stripe`) in your destination. If this is not where you would like your stripe staging data to be written to, add the following configuration to your root `dbt_project.yml` file:
 
@@ -196,17 +211,6 @@ vars:
     stripe_<default_source_table_name>_identifier: your_table_name 
 ```
 
-#### Enable columns that are not available in standard Stripe API requests
-The columns `description`, `iin` and `issuer` are not available by default in the card table ([see Fivetran docs](https://fivetran.com/docs/connectors/applications/stripe#schemanotes)). 
-To add these columns to the `stg_stripe__card` table, set the corresponding below variables to `true`.
-
-```yml
-vars:
-    stripe__card_using_description: true
-    stripe__card_using_iin: true
-    stripe__card_using_issuer: true
-```
-
 </details>
 
 ### (Optional) Step 6: Orchestrate your models with Fivetran Transformations for dbt Core™
diff --git a/dbt_project.yml b/dbt_project.yml
index e596b7f7..0d1fe5e3 100644
--- a/dbt_project.yml
+++ b/dbt_project.yml
@@ -1,6 +1,6 @@
 config-version: 2
 name: 'stripe_source'
-version: '0.12.0'
+version: '0.12.1'
 require-dbt-version: [">=1.3.0", "<2.0.0"]
 
 models:
@@ -33,4 +33,6 @@ vars:
     refund: "{{ source('stripe', 'refund') }}"
     subscription_history: "{{ source('stripe', 'subscription_history') }}"
     subscription: "{{ source('stripe', 'subscription') }}"
-    transfer: "{{ source('stripe', 'transfer') }}"
\ No newline at end of file
+    transfer: "{{ source('stripe', 'transfer') }}"
+
+    card_pass_through_columns: []
\ No newline at end of file
diff --git a/macros/get_card_columns.sql b/macros/get_card_columns.sql
index 41bbc465..01de23a9 100644
--- a/macros/get_card_columns.sql
+++ b/macros/get_card_columns.sql
@@ -34,17 +34,7 @@
     {"name": "wallet_type", "datatype": dbt.type_string()},
 ] %}
 
-{%- if var('stripe__card_using_description', false) %}
-{{ columns.append({"name": "description", "datatype": dbt.type_string()}) }}
-{%- endif %}
-
-{%- if var('stripe__card_using_iin', false) %}
-{{ columns.append({"name": "iin", "datatype": dbt.type_string()}) }}
-{%- endif %}
-
-{%- if var('stripe__card_using_issuer', false) %}
-{{ columns.append({"name": "issuer", "datatype": dbt.type_string()}) }}
-{%- endif %}
+{{ fivetran_utils.add_pass_through_columns(columns, var('card_pass_through_columns')) }}
 
 {{ return(columns) }}
 
diff --git a/models/stg_stripe__card.sql b/models/stg_stripe__card.sql
index fe987c7d..54014389 100644
--- a/models/stg_stripe__card.sql
+++ b/models/stg_stripe__card.sql
@@ -40,15 +40,6 @@ final as (
         cast(created as {{ dbt.type_timestamp() }}) as created_at,
         customer_id,
         name as card_name,
-        {%- if var('stripe__card_using_description', false) %}
-        description,
-        {%- endif %}
-        {%- if var('stripe__card_using_iin', false) %}
-        iin,
-        {%- endif %}
-        {%- if var('stripe__card_using_issuer', false) %}
-        issuer,
-        {%- endif %}
         recipient,
         funding,
         source_relation
@@ -57,6 +48,8 @@ final as (
         , {{ fivetran_utils.pivot_json_extract(string = 'metadata', list_of_properties = var('stripe__card_metadata')) }}
         {% endif %}
 
+        {{ fivetran_utils.fill_pass_through_columns('card_pass_through_columns') }}
+
     from fields
 )