diff --git a/src/pages/AssetDetail.tsx b/src/pages/AssetDetail.tsx
index a1a54d4..fe4dbd6 100644
--- a/src/pages/AssetDetail.tsx
+++ b/src/pages/AssetDetail.tsx
@@ -95,9 +95,11 @@ const AssetDetail: React.FC = () => {
     custom_site_contractor: '',
     custom_total_amount: 0,
     calculate_depreciation: false,
-    available_for_use_date: isNewAsset ? new Date().toISOString().split('T')[0] : undefined
+    available_for_use_date: isNewAsset ? new Date().toISOString().split('T')[0] : undefined,
+    finance_books:[]
   });
 
+
   // Load user details on mount
   useEffect(() => {
     async function loadUserDetails() {
@@ -112,6 +114,43 @@ const AssetDetail: React.FC = () => {
     loadUserDetails();
   }, []);
 
+  const addFinanceRow = () => {
+    // Get today's date in YYYY-MM-DD format for date input
+    const today = new Date().toISOString().split('T')[0];
+    
+    const newRow: AssetFinanceBookRow = {
+      finance_book: 'Depreciation Entries',
+      depreciation_method: 'Straight Line',
+      total_number_of_depreciations: 10,
+      frequency_of_depreciation: 12,
+      depreciation_start_date: today
+    };
+    
+    setFormData(prev => ({
+      ...prev,
+      finance_books: [
+        ...(prev.finance_books || []),
+        newRow
+      ]
+    }));
+  };
+
+  const removeFinanceRow = (index: number) => {
+    setFormData(prev => {
+      const rows = [...(prev.finance_books || [])];
+      rows.splice(index, 1);
+      return { ...prev, finance_books: rows };
+    });
+  };
+
+  const updateFinanceRow = (index: number, patch: Partial<AssetFinanceBookRow>) => {
+    setFormData(prev => {
+      const rows = [...(prev.finance_books || [])];
+      rows[index] = { ...(rows[index] || {}), ...patch };
+      return { ...prev, finance_books: rows };
+    });
+  };
+
   // Update department filters when company or userSiteName changes
   useEffect(() => {
     const filters: Record<string, any> = {};
@@ -157,7 +196,8 @@ const AssetDetail: React.FC = () => {
         custom_total_amount: asset.custom_total_amount || 0,
         gross_purchase_amount: asset.gross_purchase_amount || 0,
         available_for_use_date: asset.available_for_use_date || '',
-        calculate_depreciation: asset.calculate_depreciation || false
+        calculate_depreciation: asset.calculate_depreciation || false,
+        finance_books: asset.finance_books || []
       });
     }
   }, [asset, isDuplicating]);
diff --git a/src/services/assetService.ts b/src/services/assetService.ts
index 952b34c..90984da 100644
--- a/src/services/assetService.ts
+++ b/src/services/assetService.ts
@@ -31,6 +31,7 @@ export interface Asset {
   calculate_depreciation?: boolean;
   gross_purchase_amount?: number;
   available_for_use_date?:string;
+  finance_books?: AssetFinanceBookRow[];
 }
 
 export interface AssetListResponse {
@@ -68,6 +69,15 @@ export interface AssetStats {
   total_amount: number;
 }
 
+// Add child row type
+export interface AssetFinanceBookRow {
+  finance_book?: string;
+  depreciation_method?: string;
+  total_number_of_depreciations?: number;
+  frequency_of_depreciation?: number;
+  depreciation_start_date?: string; // YYYY-MM-DD
+}
+
 export interface CreateAssetData {
   asset_name: string;
   company: string;
@@ -88,6 +98,7 @@ export interface CreateAssetData {
   custom_site_contractor?: string;
   custom_total_amount?: number;
   calculate_depreciation?: boolean;
+  finance_books?: AssetFinanceBookRow[];
   [key: string]: any;
 }