diff --git a/backend/lcfs/tests/credit_ledger/test_credit_ledger_repo.py b/backend/lcfs/tests/credit_ledger/test_credit_ledger_repo.py
index 7cdc637f4..0f3acba75 100644
--- a/backend/lcfs/tests/credit_ledger/test_credit_ledger_repo.py
+++ b/backend/lcfs/tests/credit_ledger/test_credit_ledger_repo.py
@@ -26,7 +26,7 @@ async def test_get_rows_default_sort(
 ):
     fake_row = MagicMock()
     execute_result = MagicMock()
-    execute_result.scalars.return_value.all.return_value = [fake_row]
+    execute_result.all.return_value = [fake_row]
 
     mock_session.execute.return_value = execute_result
     mock_session.scalar.return_value = 1
@@ -51,7 +51,7 @@ async def test_get_rows_with_sort_and_paging(
 ):
     fake_rows = [MagicMock(), MagicMock()]
     execute_result = MagicMock()
-    execute_result.scalars.return_value.all.return_value = fake_rows
+    execute_result.all.return_value = fake_rows
 
     mock_session.execute.return_value = execute_result
     mock_session.scalar.return_value = 2
@@ -73,7 +73,9 @@ async def test_get_rows_with_sort_and_paging(
 
 
 @pytest.mark.anyio
-async def test_get_distinct_years(repo: CreditLedgerRepository, mock_session: MagicMock):
+async def test_get_distinct_years(
+    repo: CreditLedgerRepository, mock_session: MagicMock
+):
     """Test getting distinct years for an organization."""
     fake_years = ["2024", "2023", "2022"]
     execute_result = MagicMock()
@@ -89,11 +91,13 @@ async def test_get_distinct_years(repo: CreditLedgerRepository, mock_session: Ma
 
 
 @pytest.mark.anyio
-async def test_get_distinct_years_filters_nulls(repo: CreditLedgerRepository, mock_session: MagicMock):
+async def test_get_distinct_years_filters_nulls(
+    repo: CreditLedgerRepository, mock_session: MagicMock
+):
     """Test that get_distinct_years filters out null years."""
     fake_years_with_nulls = ["2024", None, "2023", "", "2022"]
     expected_years = ["2024", "2023", "2022"]
-    
+
     execute_result = MagicMock()
     execute_result.scalars.return_value.all.return_value = fake_years_with_nulls
 
diff --git a/backend/lcfs/tests/credit_ledger/test_credit_ledger_services.py b/backend/lcfs/tests/credit_ledger/test_credit_ledger_services.py
index 0230e4768..0c4cde02f 100644
--- a/backend/lcfs/tests/credit_ledger/test_credit_ledger_services.py
+++ b/backend/lcfs/tests/credit_ledger/test_credit_ledger_services.py
@@ -1,4 +1,5 @@
 from math import ceil
+from datetime import datetime
 from types import SimpleNamespace
 from unittest.mock import AsyncMock, MagicMock, patch
 
@@ -29,17 +30,15 @@ async def test_get_ledger_paginated_success(credit_ledger_service, mock_repo):
         page=2, size=5, filters=[], sort_orders=[]
     )
 
-    mock_rows = [
-        SimpleNamespace(
-            transaction_type="Credit",
-            compliance_period="2023",
-            organization_id=1,
-            compliance_units=10,
-            available_balance=10,
-            update_date="2024-01-01",
-        )
-        for _ in range(3)
-    ]
+    ledger_view = SimpleNamespace(
+        transaction_type="ComplianceReport",
+        compliance_period="2023",
+        organization_id=1,
+        compliance_units=10,
+        available_balance=10,
+        update_date="2024-01-01",
+    )
+    mock_rows = [(ledger_view, 2)]
     mock_repo.get_rows_paginated.return_value = (mock_rows, 12)
 
     data = await credit_ledger_service.get_ledger_paginated(
@@ -48,8 +47,9 @@ async def test_get_ledger_paginated_success(credit_ledger_service, mock_repo):
 
     assert data.pagination.total == 12
     assert data.pagination.total_pages == ceil(12 / 5)
-    assert len(data.ledger) == 3
+    assert len(data.ledger) == 1
     assert isinstance(data.ledger[0], CreditLedgerTxnSchema)
+    assert data.ledger[0].description == "Supplemental 2"
 
 
 @pytest.mark.anyio
@@ -57,8 +57,18 @@ async def test_export_transactions_generates_stream(credit_ledger_service, mock_
     with patch(
         "lcfs.web.api.credit_ledger.services.SpreadsheetBuilder.build_spreadsheet",
         return_value=b"dummy-bytes",
-    ):
-        mock_repo.get_rows_paginated.return_value = ([], 0)
+    ), patch(
+        "lcfs.web.api.credit_ledger.services.SpreadsheetBuilder.add_sheet"
+    ) as mock_add_sheet:
+        ledger_view = SimpleNamespace(
+            transaction_type="ComplianceReport",
+            compliance_period="2023",
+            organization_id=1,
+            compliance_units=10,
+            available_balance=10,
+            update_date=datetime(2024, 1, 1),
+        )
+        mock_repo.get_rows_paginated.return_value = ([(ledger_view, 1)], 1)
 
         resp = await credit_ledger_service.export_transactions(
             organization_id=1, compliance_year=None, export_format="csv"
@@ -67,6 +77,9 @@ async def test_export_transactions_generates_stream(credit_ledger_service, mock_
         assert isinstance(resp, StreamingResponse)
         assert resp.media_type == "text/csv"
         assert resp.headers["Content-Disposition"].startswith("attachment;")
+        assert mock_add_sheet.called
+        _, kwargs = mock_add_sheet.call_args
+        assert kwargs["rows"][0][3] == "Compliance Report – Supplemental 1"
 
 
 @pytest.mark.anyio
@@ -74,21 +87,29 @@ async def test_get_organization_years_success(credit_ledger_service, mock_repo):
     """Test getting organization years returns years from repo."""
     expected_years = ["2024", "2023", "2022"]
     mock_repo.get_distinct_years.return_value = expected_years
-    
+
     organization_id = 123
-    years = await credit_ledger_service.get_organization_years(organization_id=organization_id)
-    
+    years = await credit_ledger_service.get_organization_years(
+        organization_id=organization_id
+    )
+
     assert years == expected_years
-    mock_repo.get_distinct_years.assert_called_once_with(organization_id=organization_id)
+    mock_repo.get_distinct_years.assert_called_once_with(
+        organization_id=organization_id
+    )
 
 
 @pytest.mark.anyio
 async def test_get_organization_years_empty_list(credit_ledger_service, mock_repo):
     """Test getting organization years returns empty list when no data."""
     mock_repo.get_distinct_years.return_value = []
-    
+
     organization_id = 456
-    years = await credit_ledger_service.get_organization_years(organization_id=organization_id)
-    
+    years = await credit_ledger_service.get_organization_years(
+        organization_id=organization_id
+    )
+
     assert years == []
-    mock_repo.get_distinct_years.assert_called_once_with(organization_id=organization_id)
+    mock_repo.get_distinct_years.assert_called_once_with(
+        organization_id=organization_id
+    )
diff --git a/backend/lcfs/web/api/credit_ledger/repo.py b/backend/lcfs/web/api/credit_ledger/repo.py
index c60ea34d3..15dcf774b 100644
--- a/backend/lcfs/web/api/credit_ledger/repo.py
+++ b/backend/lcfs/web/api/credit_ledger/repo.py
@@ -2,12 +2,13 @@
 from typing import Optional, List
 
 from fastapi import Depends
-from sqlalchemy import func, select, and_, desc, asc, distinct
+from sqlalchemy import func, select, and_, desc, distinct
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from lcfs.db.dependencies import get_async_db_session
 from lcfs.web.core.decorators import repo_handler
 from lcfs.db.models.transaction.CreditLedgerView import CreditLedgerView
+from lcfs.db.models.compliance.ComplianceReport import ComplianceReport
 
 log = structlog.get_logger(__name__)
 
@@ -28,24 +29,38 @@ async def get_rows_paginated(
         limit: Optional[int],
         conditions: List[any],
         sort_orders: List[any],
-    ) -> tuple[List[CreditLedgerView], int]:
-        # Base query
-        stmt = select(CreditLedgerView).where(and_(*conditions))
+    ) -> tuple[List[tuple], int]:
+        # Base query - join with compliance_report to get version for ComplianceReport transactions
+        stmt = (
+            select(
+                CreditLedgerView,
+                ComplianceReport.version.label("compliance_report_version"),
+            )
+            .outerjoin(
+                ComplianceReport,
+                and_(
+                    CreditLedgerView.transaction_id
+                    == ComplianceReport.compliance_report_id,
+                    CreditLedgerView.transaction_type == "ComplianceReport",
+                ),
+            )
+            .where(and_(*conditions))
+        )
 
-        # Sort and order
-        for order in sort_orders:
-            direction = asc if order.direction == "asc" else desc
-            stmt = stmt.order_by(direction(getattr(CreditLedgerView, order.field)))
-        if not sort_orders:
-            stmt = stmt.order_by(CreditLedgerView.update_date.desc())
+        # Always sort by update_date DESC - sorting is not allowed on credit ledger
+        stmt = stmt.order_by(CreditLedgerView.update_date.desc())
 
         # Count before pagination
-        total = await self.db.scalar(select(func.count()).select_from(stmt.subquery()))
+        count_stmt = select(func.count()).select_from(
+            select(CreditLedgerView).where(and_(*conditions)).subquery()
+        )
+        total = await self.db.scalar(count_stmt)
 
         # Pagination
         stmt = stmt.offset(offset).limit(limit)
 
-        rows = (await self.db.execute(stmt)).scalars().all()
+        result = await self.db.execute(stmt)
+        rows = result.all()
         return rows, total or 0
 
     @repo_handler
@@ -64,7 +79,7 @@ async def get_distinct_years(
             .where(CreditLedgerView.compliance_period.isnot(None))
             .order_by(desc(CreditLedgerView.compliance_period))
         )
-        
+
         result = await self.db.execute(stmt)
         years = result.scalars().all()
         return [str(year) for year in years if year]
diff --git a/backend/lcfs/web/api/credit_ledger/schema.py b/backend/lcfs/web/api/credit_ledger/schema.py
index 8a10d95c4..892cc4859 100644
--- a/backend/lcfs/web/api/credit_ledger/schema.py
+++ b/backend/lcfs/web/api/credit_ledger/schema.py
@@ -7,6 +7,7 @@
 
 class CreditLedgerTxnSchema(BaseSchema):
     transaction_type: str
+    description: Optional[str] = None
     compliance_period: str
     organization_id: int
     compliance_units: int
@@ -14,8 +15,8 @@ class CreditLedgerTxnSchema(BaseSchema):
     update_date: datetime
 
     model_config = ConfigDict(from_attributes=True)
-    
-    @field_validator('available_balance')
+
+    @field_validator("available_balance")
     @classmethod
     def validate_available_balance(cls, v: Optional[int]) -> int:
         """Ensure available balance is never negative - display 0 instead"""
diff --git a/backend/lcfs/web/api/credit_ledger/services.py b/backend/lcfs/web/api/credit_ledger/services.py
index 12311db15..4dd4b266d 100644
--- a/backend/lcfs/web/api/credit_ledger/services.py
+++ b/backend/lcfs/web/api/credit_ledger/services.py
@@ -29,7 +29,9 @@ class CreditLedgerService:
     def __init__(self, repo: CreditLedgerRepository = Depends()) -> None:
         self.repo = repo
 
-    def _apply_filters(self, pagination: PaginationRequestSchema, conditions: List[any]) -> None:
+    def _apply_filters(
+        self, pagination: PaginationRequestSchema, conditions: List[any]
+    ) -> None:
         for f in pagination.filters:
             field = get_field_for_filter(CreditLedgerView, f.field)
             filter_val = f.filter
@@ -62,8 +64,26 @@ async def get_ledger_paginated(
             sort_orders=pagination.sort_orders,
         )
 
+        # Transform rows with compliance report version (e.g., "Original", "Supplemental 1")
+        ledger_items = []
+        for row in rows:
+            ledger_view, version = row
+            # Create schema from the ledger view
+            item = CreditLedgerTxnSchema.model_validate(ledger_view)
+
+            # Add formatted description for compliance reports
+            if (
+                ledger_view.transaction_type == "ComplianceReport"
+                and version is not None
+            ):
+                item.description = (
+                    "Original" if version == 0 else f"Supplemental {version}"
+                )
+
+            ledger_items.append(item)
+
         return CreditLedgerListSchema(
-            ledger=[CreditLedgerTxnSchema.model_validate(r) for r in rows],
+            ledger=ledger_items,
             pagination=PaginationResponseSchema(
                 total=total,
                 page=pagination.page,
@@ -113,16 +133,33 @@ async def export_transactions(
             sort_orders=sort_orders,
         )
 
-        sheet_rows = [
-            [
-                int(r.compliance_period),
-                int(r.available_balance or 0),
-                int(r.compliance_units or 0),
-                r.transaction_type,
-                r.update_date.strftime("%Y-%m-%d"),
-            ]
-            for r in rows
-        ]
+        sheet_rows = []
+        for row in rows:
+            ledger_view, version = row
+
+            # Format transaction type with version for compliance reports
+            transaction_type = ledger_view.transaction_type
+            if transaction_type == "ComplianceReport" and version is not None:
+                # Format as "Original", "Supplemental 1", etc.
+                description = "Original" if version == 0 else f"Supplemental {version}"
+                transaction_type = f"Compliance Report – {description}"
+            elif transaction_type == "StandaloneTransaction":
+                transaction_type = "Legacy Transaction"
+            else:
+                # Add spaces to camelCase
+                transaction_type = "".join(
+                    [" " + c if c.isupper() else c for c in transaction_type]
+                ).strip()
+
+            sheet_rows.append(
+                [
+                    int(ledger_view.compliance_period),
+                    int(ledger_view.available_balance or 0),
+                    int(ledger_view.compliance_units or 0),
+                    transaction_type,
+                    ledger_view.update_date.strftime("%Y-%m-%d"),
+                ]
+            )
 
         builder = SpreadsheetBuilder(file_format=export_format)
         builder.add_sheet(
diff --git a/frontend/src/views/Organizations/OrganizationView/CreditLedger.jsx b/frontend/src/views/Organizations/OrganizationView/CreditLedger.jsx
index 7e7ba6b54..6a54b5ca9 100644
--- a/frontend/src/views/Organizations/OrganizationView/CreditLedger.jsx
+++ b/frontend/src/views/Organizations/OrganizationView/CreditLedger.jsx
@@ -17,7 +17,11 @@ import {
 } from '@/hooks/useOrganization'
 import { useCurrentUser } from '@/hooks/useCurrentUser'
 import { useTranslation } from 'react-i18next'
-import { timezoneFormatter, numberFormatter, spacesFormatter } from '@/utils/formatters'
+import {
+  timezoneFormatter,
+  numberFormatter,
+  spacesFormatter
+} from '@/utils/formatters'
 
 export const CreditLedger = ({ organizationId }) => {
   const { t } = useTranslation(['org', 'common'])
@@ -118,6 +122,7 @@ export const CreditLedger = ({ organizationId }) => {
     availableBalance: r.availableBalance,
     complianceUnits: r.complianceUnits,
     transactionType: r.transactionType,
+    description: r.description,
     updateDate: r.updateDate
   }))
 
@@ -152,38 +157,57 @@ export const CreditLedger = ({ organizationId }) => {
     {
       field: 'compliancePeriod',
       headerName: t('org:ledger.complianceYear'),
-      minWidth: 130
+      minWidth: 130,
+      sortable: false
     },
     {
       field: 'availableBalance',
       headerName: t('org:ledger.availableBalance'),
       valueFormatter: numberFormatter,
-      minWidth: 170
+      minWidth: 170,
+      sortable: false
     },
     {
       field: 'complianceUnits',
       headerName: t('org:ledger.complianceUnits'),
       valueFormatter: numberFormatter,
-      minWidth: 150
+      minWidth: 150,
+      sortable: false
     },
     {
       field: 'transactionType',
       headerName: t('org:ledger.transactionType'),
-      valueFormatter: (params) =>
-        params.value === 'StandaloneTransaction'
-          ? 'Legacy Transaction'
-          : spacesFormatter(params),
-      minWidth: 160
+      valueFormatter: (params) => {
+        const transactionType = params.data.transactionType
+        const description = params.data.description
+
+        // Map StandaloneTransaction to Legacy Transaction for display
+        const displayType =
+          transactionType === 'StandaloneTransaction'
+            ? 'Legacy Transaction'
+            : spacesFormatter({ value: transactionType })
+
+        // Append description for Compliance Reports (e.g., "Compliance Report - Original")
+        if (transactionType === 'ComplianceReport' && description) {
+          return `${displayType} – ${description}`
+        }
+
+        return displayType
+      },
+      minWidth: 300,
+      sortable: false
     },
     {
       field: 'updateDate',
       headerName: t('org:ledger.transactionDate'),
       valueFormatter: timezoneFormatter,
-      minWidth: 180
+      minWidth: 180,
+      sortable: false,
+      sort: 'desc'
     }
   ]
   const getRowId = (p) =>
-    `${p.data.updateDate}-${p.data.transactionType}-${p.data.complianceUnits}`
+    `${p.data.updateDate}-${p.data.transactionType}-${p.data.complianceUnits}-${p.data.description || ''}`
 
   return (
     <BCBox mt={1}>
@@ -266,7 +290,7 @@ export const CreditLedger = ({ organizationId }) => {
           onPaginationChange={onPaginationChange}
           defaultColDef={{
             filter: false,
-            sortable: true,
+            sortable: false,
             floatingFilter: false
           }}
         />
diff --git a/frontend/src/views/Organizations/OrganizationView/__tests__/CreditLedger.test.jsx b/frontend/src/views/Organizations/OrganizationView/__tests__/CreditLedger.test.jsx
index 34f54c86c..e59ecf94f 100644
--- a/frontend/src/views/Organizations/OrganizationView/__tests__/CreditLedger.test.jsx
+++ b/frontend/src/views/Organizations/OrganizationView/__tests__/CreditLedger.test.jsx
@@ -19,7 +19,10 @@ vi.mock('react-i18next', () => ({
 // Mock formatters
 vi.mock('@/utils/formatters', () => ({
   timezoneFormatter: vi.fn((value) => value),
-  numberFormatter: vi.fn((value) => value)
+  numberFormatter: vi.fn((value) => value),
+  spacesFormatter: vi.fn(({ value }) =>
+    value ? value.replace(/([a-z])([A-Z])/g, '$1 $2') : value
+  )
 }))
 
 // Mock components
@@ -86,6 +89,8 @@ vi.mock('@/components/DownloadButton', () => ({
   }
 }))
 
+let lastGridProps = null
+
 vi.mock('@/components/BCDataGrid/BCGridViewer', () => {
   const React = require('react')
   return {
@@ -106,6 +111,18 @@ vi.mock('@/components/BCDataGrid/BCGridViewer', () => {
         },
         ref
       ) => {
+        lastGridProps = {
+          queryData,
+          onPaginationChange,
+          getRowId,
+          gridKey,
+          dataKey,
+          columnDefs,
+          suppressPagination,
+          paginationOptions,
+          defaultColDef,
+          autoSizeStrategy
+        }
         const domProps = {}
         // Only pass through standard DOM attributes
         Object.keys(props).forEach((key) => {
@@ -201,6 +218,7 @@ const renderComponent = (props = {}) => {
 describe('CreditLedger Component Tests', () => {
   beforeEach(() => {
     vi.clearAllMocks()
+    lastGridProps = null
 
     // Default mock implementations
     mockUseCurrentUser.mockReturnValue({
@@ -342,6 +360,39 @@ describe('CreditLedger Component Tests', () => {
   })
 
   describe('Data Processing', () => {
+    it('formats compliance report transaction type with description', () => {
+      const ledgerData = [
+        {
+          compliancePeriod: '2023',
+          availableBalance: '1000',
+          complianceUnits: '500',
+          transactionType: 'ComplianceReport',
+          description: 'Supplemental 2',
+          updateDate: '2023-01-01'
+        }
+      ]
+
+      mockUseCreditLedger.mockReturnValue({
+        data: {
+          ledger: ledgerData,
+          pagination: { page: 1, size: 10, total: 1, totalPages: 1 }
+        },
+        isLoading: false
+      })
+
+      renderComponent()
+
+      const transactionTypeCol = lastGridProps.columnDefs.find(
+        (col) => col.field === 'transactionType'
+      )
+
+      const formatted = transactionTypeCol.valueFormatter({
+        data: ledgerData[0]
+      })
+
+      expect(formatted).toBe('Compliance Report – Supplemental 2')
+    })
+
     it('transforms ledger data correctly', () => {
       const ledgerData = [
         {