diff --git a/reference/admin.yaml b/reference/admin.yaml
index cf2c26c06..ebb6a3e44 100644
--- a/reference/admin.yaml
+++ b/reference/admin.yaml
@@ -6360,6 +6360,52 @@ components:
           type: string
           nullable: true
           example: report.created
+    time_interval_granularity:
+      type: string
+      nullable: false
+      enum:
+        - day
+        - month
+        - quarter
+        - year
+      description: |
+        The time duration by which to group expenses to aggregate sum of amount
+      example: month
+    total_amount:
+      type: number
+      nullable: false
+      description: |
+        Total sum of amount of expenses falling under filtering criteria
+      example: 990
+    time_interval_marker:
+      type: string
+      nullable: false
+      description: >
+        Representation of a point in time for which the sum of amount of
+        expenses is calculated.
+
+        Value depends of value of time_interval_granularity as follows :
+
+        - for time_interval_granularity of `day`, value will be in date format
+        YYYY-MM-DD. Example : 2021-01-01
+
+        - for time_interval_granularity of `month`, value will be in date format
+        YYYY-MM. Example : 2021-01
+
+        - for time_interval_granularity of `quarter`, value will be in date
+        format YYYY-QQ. Example : 2021-Q1
+
+        - for time_interval_granularity of `year`, value will be in date format
+        YYYY. Example : 2021
+      example: 2022-02
+    spend_overview_summary_data_item:
+      type: object
+      nullable: false
+      properties:
+        amount:
+          $ref: '#/components/schemas/amount'
+        time_interval_marker:
+          $ref: '#/components/schemas/time_interval_marker'
     account_out:
       type: object
       additionalProperties: false
@@ -6820,6 +6866,125 @@ components:
         example: 20
         default: 50
         maximum: 200
+    time_interval_granularity:
+      in: query
+      name: time_interval_granularity
+      description: |
+        The time duration by which to group expenses to aggregate sum of amount.
+        Supported operator is `eq`.
+      schema:
+        type: string
+        default: month
+        enum:
+          - day
+          - month
+          - quarter
+          - year
+        example: eq.month
+    time_interval_preset:
+      in: query
+      name: time_interval_preset
+      description: >
+        Preset time durations which can be used to filter expenses by spend
+        date.
+
+        Default value is used if it is not specified and time_interval_start and
+        time_interval_end params are also not specified.
+
+        Supported operator is `eq`.
+      schema:
+        type: string
+        default: this_year
+        enum:
+          - this_week
+          - this_month
+          - this_quarter
+          - this_year
+        example: eq.this_year
+    time_interval_start:
+      in: query
+      name: time_interval_start
+      description: |
+        Start of time duration for filtering expenses by spend date.
+        Need not to be specified if time_interval_preset param is passed.
+        Supported operator is `eq`.
+      schema:
+        type: string
+        format: date-time
+        description: >-
+          Date-time in [ISO8601
+          format](https://xml2rfc.tools.ietf.org/public/rfc/html/rfc3339.html#anchor14).
+        example: '2020-06-01T13:14:54.804+00:00'
+    time_interval_end:
+      in: query
+      name: time_interval_end
+      description: |
+        End of time duration for filtering expenses by spend date. 
+        Need not to be specified if time_interval_preset param is passed.
+        Supported operator is `eq`.
+      schema:
+        type: string
+        format: date-time
+        description: >-
+          Date-time in [ISO8601
+          format](https://xml2rfc.tools.ietf.org/public/rfc/html/rfc3339.html#anchor14).
+        example: '2021-06-01T13:14:54.804+00:00'
+    is_reimbursable:
+      in: query
+      name: is_reimbursable
+      description: >
+        For filtering out only those expenses which are reimbursable to the
+        employee.
+
+        Supported operators are `eq`.<br>
+      schema:
+        type: string
+        example: eq.true
+    merchants:
+      in: query
+      name: merchants
+      description: |
+        List of merchants for filtering expenses.
+        Supported operator is `in`.
+      schema:
+        type: string
+        example: in.(los-pollos-harmanos,saul-goodman)
+    category_ids:
+      in: query
+      name: category_ids
+      description: |
+        List of category IDs for filtering expenses.
+        Supported operator is `in`.
+      schema:
+        type: string
+        example: in.(cat123,cat345)
+    project_ids:
+      in: query
+      name: project_ids
+      description: |
+        List of project IDs for filtering expenses.
+        Supported operator is `in`.
+      schema:
+        type: string
+        example: in.(proj123,proj456)
+    department_ids:
+      in: query
+      name: department_ids
+      description: |
+        List of department IDs for filtering expenses.
+        Supported operator is `in`.
+      schema:
+        type: string
+        example: in.(dept123,dept345)
+    user_ids:
+      in: query
+      name: user_ids
+      description: |
+        List of user IDs for filtering expenses.
+        Supported operator is `in`.
+      schema:
+        type: string
+        example: in.(us123,us456)
 tags:
   - name: Accounting Exports
     description: >
@@ -9737,6 +9902,60 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/401'
+  /admin/spend_overview/summary:
+    get:
+      tags:
+        - Spend Overview
+      summary: Spend Overview Summary
+      operationId: spend_overview_summary
+      description: >
+        API to return spend overview summary data. Data returned by this API can
+        be used to plot a time series graph depicting amount of spend over a
+        period of time. <br>
+
+        This API supports very rich filtering on all response fields and
+        pagination via query parameters. To understand how to use these
+        parameters, please see the [Guide to Data
+        APIs](https://docs.fylehq.com/docs/fyle-platform-docs/ZG9jOjI3Mzk2NTM3-guide-to-data-ap-is#filtering)
+      parameters:
+        - $ref: '#/components/parameters/time_interval_granularity'
+        - $ref: '#/components/parameters/time_interval_preset'
+        - $ref: '#/components/parameters/time_interval_start'
+        - $ref: '#/components/parameters/time_interval_end'
+        - $ref: '#/components/parameters/is_reimbursable'
+        - $ref: '#/components/parameters/merchants'
+        - $ref: '#/components/parameters/category_ids'
+        - $ref: '#/components/parameters/project_ids'
+        - $ref: '#/components/parameters/department_ids'
+        - $ref: '#/components/parameters/user_ids'
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  time_interval_granularity:
+                    $ref: '#/components/schemas/time_interval_granularity'
+                  total_amount:
+                    $ref: '#/components/schemas/total_amount'
+                  data:
+                    type: array
+                    items:
+                      $ref: '#/components/schemas/spend_overview_summary_data_item'
+        '400':
+          description: Bad request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/400'
+        '401':
+          description: Unauthorized request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/401'
   /admin/accounts:
     get:
       tags:
diff --git a/src/admin/openapi.yaml b/src/admin/openapi.yaml
index 5b19cea88..5c5fa4d1e 100644
--- a/src/admin/openapi.yaml
+++ b/src/admin/openapi.yaml
@@ -224,6 +224,9 @@ paths:
     $ref: paths/admin@employee_account_summaries.yaml
   /admin/schedules:
     $ref: 'paths/admin@schedules.yaml'
+  /admin/spend_overview/summary:
+    $ref: 'paths/admin@spend_overview@summary.yaml'
+
   /admin/accounts:
     $ref: 'paths/admin@accounts.yaml'
   /admin/tax_groups:
diff --git a/src/admin/paths/admin@spend_overview@summary.yaml b/src/admin/paths/admin@spend_overview@summary.yaml
new file mode 100644
index 000000000..eaf916ced
--- /dev/null
+++ b/src/admin/paths/admin@spend_overview@summary.yaml
@@ -0,0 +1,49 @@
+get:
+  tags:
+    - Spend Overview
+  summary: Spend Overview Summary
+  operationId: spend_overview_summary
+  description: |
+    API to return spend overview summary data. Data returned by this API can be used to plot a time series graph depicting amount of spend over a period of time. <br>
+    This API supports very rich filtering on all response fields and pagination via query parameters. To understand how to use these parameters, please see the [Guide to Data APIs](https://docs.fylehq.com/docs/fyle-platform-docs/ZG9jOjI3Mzk2NTM3-guide-to-data-ap-is#filtering)
+  parameters:
+    - $ref: ../../components/parameters/time_interval_granularity.yaml
+    - $ref: ../../components/parameters/time_interval_preset.yaml
+    - $ref: ../../components/parameters/time_interval_start.yaml
+    - $ref: ../../components/parameters/time_interval_end.yaml
+    # - $ref: ../../components/parameters/is_card_spend.yaml  # will un-comment later when this filter is available
+    - $ref: ../../components/parameters/is_reimbursable.yaml
+    - $ref: ../../components/parameters/merchant.yaml
+    - $ref: ../../components/parameters/category_id.yaml
+    - $ref: ../../components/parameters/project_id.yaml
+    - $ref: ../../components/parameters/department_id.yaml
+    - $ref: ../../components/parameters/user_id.yaml
+    # - $ref: ../../components/parameters/card_id.yaml  # will un-comment later when this filter is available
+  responses:
+    '200':
+      description: OK
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              time_interval_granularity:
+                $ref: ../../components/schemas/fields.yaml#/time_interval_granularity
+              total_amount:
+                $ref: ../../components/schemas/fields.yaml#/total_amount
+              data:
+                type: array
+                items:
+                  $ref: ../../components/schemas/fields.yaml#/spend_overview_summary_data_item
+    '400':
+      description: Bad request
+      content:
+        application/json:
+          schema:
+            $ref: ../../components/schemas/400.yaml
+    '401':
+      description: Unauthorized request
+      content:
+        application/json:
+          schema:
+            $ref: ../../components/schemas/401.yaml
\ No newline at end of file
diff --git a/src/components/parameters/card_id.yaml b/src/components/parameters/card_id.yaml
new file mode 100644
index 000000000..210e3cb3a
--- /dev/null
+++ b/src/components/parameters/card_id.yaml
@@ -0,0 +1,8 @@
+in: query
+name: card_id
+description: |
+  Corporate card IDs for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(bacc1234,bacc4567)
diff --git a/src/components/parameters/category_id.yaml b/src/components/parameters/category_id.yaml
new file mode 100644
index 000000000..60f61a127
--- /dev/null
+++ b/src/components/parameters/category_id.yaml
@@ -0,0 +1,8 @@
+in: query
+name: category_id
+description: |
+  Category IDs for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(cat123,cat345)
diff --git a/src/components/parameters/department_id.yaml b/src/components/parameters/department_id.yaml
new file mode 100644
index 000000000..22ce780fb
--- /dev/null
+++ b/src/components/parameters/department_id.yaml
@@ -0,0 +1,8 @@
+in: query
+name: department_id
+description: |
+  Department IDs for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(dept123,dept345)
diff --git a/src/components/parameters/is_card_spend.yaml b/src/components/parameters/is_card_spend.yaml
new file mode 100644
index 000000000..32c2f9117
--- /dev/null
+++ b/src/components/parameters/is_card_spend.yaml
@@ -0,0 +1,8 @@
+in: query
+name: is_card_spend
+description: |
+  For filtering out only those expenses where source account is corporate card account
+  Supported operators are `eq`.<br>
+schema:
+  type: string
+  example: eq.true
diff --git a/src/components/parameters/is_reimbursable.yaml b/src/components/parameters/is_reimbursable.yaml
new file mode 100644
index 000000000..c94396d45
--- /dev/null
+++ b/src/components/parameters/is_reimbursable.yaml
@@ -0,0 +1,8 @@
+in: query
+name: is_reimbursable
+description: |
+  For filtering out only those expenses which are reimbursable to the employee.
+  Supported operators are `eq`.<br>
+schema:
+  type: string
+  example: eq.true
diff --git a/src/components/parameters/merchant.yaml b/src/components/parameters/merchant.yaml
new file mode 100644
index 000000000..dd213691b
--- /dev/null
+++ b/src/components/parameters/merchant.yaml
@@ -0,0 +1,8 @@
+in: query
+name: merchant
+description: |
+  List of merchants for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(los-pollos-harmanos,saul-goodman)
diff --git a/src/components/parameters/project_id.yaml b/src/components/parameters/project_id.yaml
new file mode 100644
index 000000000..31cccb851
--- /dev/null
+++ b/src/components/parameters/project_id.yaml
@@ -0,0 +1,8 @@
+in: query
+name: project_id
+description: |
+  Project IDs for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(proj123,proj456)
diff --git a/src/components/parameters/time_interval_end.yaml b/src/components/parameters/time_interval_end.yaml
new file mode 100644
index 000000000..5faf6e436
--- /dev/null
+++ b/src/components/parameters/time_interval_end.yaml
@@ -0,0 +1,13 @@
+
+in: query
+name: time_interval_end
+description: |
+  End of time duration for filtering expenses by spend date. 
+  Need not to be specified if time_interval_preset param is passed.
+  Supported operator is `eq`.
+schema:
+  type: string
+  format: date-time
+  description:
+    Date-time in [ISO8601 format](https://xml2rfc.tools.ietf.org/public/rfc/html/rfc3339.html#anchor14).
+  example: '2021-06-01T13:14:54.804+00:00'
diff --git a/src/components/parameters/time_interval_granularity.yaml b/src/components/parameters/time_interval_granularity.yaml
new file mode 100644
index 000000000..b2728d989
--- /dev/null
+++ b/src/components/parameters/time_interval_granularity.yaml
@@ -0,0 +1,16 @@
+
+in: query
+name: time_interval_granularity
+description: |
+  The time duration by which to group expenses to aggregate sum of amount.
+  Supported operator is `eq`.
+schema:
+  type: string
+  default: eq.month
+  enum:
+    - eq.day
+    - eq.month
+    - eq.quarter
+    - eq.year
+  example: eq.month
+
diff --git a/src/components/parameters/time_interval_preset.yaml b/src/components/parameters/time_interval_preset.yaml
new file mode 100644
index 000000000..791e839e6
--- /dev/null
+++ b/src/components/parameters/time_interval_preset.yaml
@@ -0,0 +1,16 @@
+
+in: query
+name: time_interval_preset
+description: |
+  Preset time durations which can be used to filter expenses by spend date.
+  Default value is used if it is not specified and time_interval_start and time_interval_end params are also not specified.
+  Supported operator is `eq`.
+schema:
+  type: string
+  default: eq.this_year
+  enum:
+    - eq.this_week
+    - eq.this_month
+    - eq.this_quarter
+    - eq.this_year
+  example: eq.this_year
diff --git a/src/components/parameters/time_interval_start.yaml b/src/components/parameters/time_interval_start.yaml
new file mode 100644
index 000000000..28c4c5f1d
--- /dev/null
+++ b/src/components/parameters/time_interval_start.yaml
@@ -0,0 +1,13 @@
+
+in: query
+name: time_interval_start
+description: |
+  Start of time duration for filtering expenses by spend date.
+  Need not to be specified if time_interval_preset param is passed.
+  Supported operator is `eq`.
+schema:
+  type: string
+  format: date-time
+  description:
+    Date-time in [ISO8601 format](https://xml2rfc.tools.ietf.org/public/rfc/html/rfc3339.html#anchor14).
+  example: '2020-06-01T13:14:54.804+00:00'
diff --git a/src/components/parameters/user_id.yaml b/src/components/parameters/user_id.yaml
new file mode 100644
index 000000000..b9df8f6af
--- /dev/null
+++ b/src/components/parameters/user_id.yaml
@@ -0,0 +1,8 @@
+in: query
+name: user_id
+description: |
+  User IDs for filtering expenses.
+  Supported operator is `in`.
+schema:
+  type: string
+  example: in.(us123,us456)
diff --git a/src/components/schemas/fields.yaml b/src/components/schemas/fields.yaml
index fdbbd4198..f4cedf77b 100644
--- a/src/components/schemas/fields.yaml
+++ b/src/components/schemas/fields.yaml
@@ -625,6 +625,47 @@ reminder_schedule_config:
           example: 42
           description: minute of the hour
 
+time_interval_granularity:
+  type: string
+  nullable: False
+  enum:
+    - day
+    - month
+    - quarter
+    - year
+  description: |
+    The time duration by which to group expenses to aggregate sum of amount
+  example: month
+
+total_amount:
+  type: number
+  nullable: False
+  description: |
+    Total sum of amount of expenses falling under filtering criteria
+  example: 990
+
+time_interval_marker:
+  type: string
+  nullable: False
+  description: |
+    Representation of a point in time for which the sum of amount of expenses is calculated.
+    Value depends of value of time_interval_granularity as follows :
+    - for time_interval_granularity of `day`, value will be in date format YYYY-MM-DD. Example : 2021-01-01
+    - for time_interval_granularity of `month`, value will be in date format YYYY-MM. Example : 2021-01
+    - for time_interval_granularity of `quarter`, value will be in date format YYYY-QQ. Example : 2021-Q1
+    - for time_interval_granularity of `year`, value will be in date format YYYY. Example : 2021
+  example: 2022-02
+
+spend_overview_summary_data_item:
+  type: object
+  nullable: False
+  properties:
+    amount:
+      $ref: './fields.yaml#/amount'
+    time_interval_marker:
+      $ref: './fields.yaml#/time_interval_marker'
+
+
 department_head_user_ids:
   type: array
   nullable: False