diff --git a/app/Http/Controllers/Admin/Finance/CashAccountController.php b/app/Http/Controllers/Admin/Finance/CashAccountController.php
index 07731a6..cf239ff 100644
--- a/app/Http/Controllers/Admin/Finance/CashAccountController.php
+++ b/app/Http/Controllers/Admin/Finance/CashAccountController.php
@@ -7,6 +7,7 @@
 use App\Models\CashTransaction;
 use App\Services\Admin\Finance\CashAccountService;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Validation\ValidationException;
 use Inertia\Inertia;
 use Inertia\Response;
 
@@ -28,36 +29,64 @@ public function index(): Response
 
     public function deposit(CashTransactionRequest $request): RedirectResponse
     {
-        $this->service->deposit($request->validated());
+        try {
+            $this->service->deposit($request->validated());
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Deposit berhasil ditambahkan.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Deposit berhasil ditambahkan.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.cash-accounts.index');
     }
 
     public function withdrawal(CashTransactionRequest $request): RedirectResponse
     {
-        $this->service->withdrawal($request->validated());
+        try {
+            $this->service->withdrawal($request->validated());
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Withdrawal berhasil ditambahkan.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Withdrawal berhasil ditambahkan.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.cash-accounts.index');
     }
 
     public function update(CashTransactionRequest $request, CashTransaction $transaction): RedirectResponse
     {
-        $this->service->updateTransaction($transaction, $request->validated());
+        try {
+            $this->service->updateTransaction($transaction, $request->validated());
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Transaksi berhasil diperbarui.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Transaksi berhasil diperbarui.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.cash-accounts.index');
     }
 
     public function destroy(CashTransaction $transaction): RedirectResponse
     {
-        $this->service->deleteTransaction($transaction);
+        try {
+            $this->service->deleteTransaction($transaction);
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Transaksi berhasil dihapus.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Transaksi berhasil dihapus.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.cash-accounts.index');
     }
diff --git a/app/Http/Controllers/Admin/Finance/ExpenseController.php b/app/Http/Controllers/Admin/Finance/ExpenseController.php
index 60df661..0199cf6 100644
--- a/app/Http/Controllers/Admin/Finance/ExpenseController.php
+++ b/app/Http/Controllers/Admin/Finance/ExpenseController.php
@@ -7,6 +7,7 @@
 use App\Models\Expense;
 use App\Services\Admin\Finance\ExpenseService;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Validation\ValidationException;
 use Inertia\Inertia;
 use Inertia\Response;
 
@@ -25,27 +26,45 @@ public function index(): Response
 
     public function store(ExpenseRequest $request): RedirectResponse
     {
-        $this->service->create($request->validated());
+        try {
+            $this->service->create($request->validated());
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil ditambahkan.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil ditambahkan.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.expenses.index');
     }
 
     public function update(ExpenseRequest $request, Expense $expense): RedirectResponse
     {
-        $this->service->update($expense, $request->validated());
+        try {
+            $this->service->update($expense, $request->validated());
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil diperbarui.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil diperbarui.']);
+        } catch (ValidationException $e) {
+            $firstError = collect($e->errors())->flatten()->first();
+            Inertia::flash('toast', ['type' => 'error', 'message' => $firstError ?? 'Terjadi kesalahan.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.expenses.index');
     }
 
     public function destroy(Expense $expense): RedirectResponse
     {
-        $this->service->delete($expense);
+        try {
+            $this->service->delete($expense);
 
-        Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil dihapus.']);
+            Inertia::flash('toast', ['type' => 'success', 'message' => 'Pengeluaran berhasil dihapus.']);
+        } catch (\Exception $e) {
+            Inertia::flash('toast', ['type' => 'error', 'message' => $e->getMessage()]);
+        }
 
         return to_route('admin.finance.expenses.index');
     }
diff --git a/app/Services/Admin/Finance/CashAccountService.php b/app/Services/Admin/Finance/CashAccountService.php
index cd6e2e9..79dfb8d 100644
--- a/app/Services/Admin/Finance/CashAccountService.php
+++ b/app/Services/Admin/Finance/CashAccountService.php
@@ -6,6 +6,7 @@
 use App\Models\CashAccount;
 use App\Models\CashTransaction;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Validation\ValidationException;
 
 class CashAccountService
@@ -31,100 +32,108 @@ public function getAllTransactions(): Collection
 
     public function deposit(array $data): CashTransaction
     {
-        $cashAccount = CashAccount::firstOrFail();
-        $newBalance = $cashAccount->balance + $data['amount'];
+        return DB::transaction(function () use ($data) {
+            $cashAccount = CashAccount::firstOrFail();
+            $newBalance = $cashAccount->balance + $data['amount'];
 
-        $cashAccount->update(['balance' => $newBalance]);
+            $cashAccount->update(['balance' => $newBalance]);
 
-        return CashTransaction::create([
-            'cash_account_id' => $cashAccount->id,
-            'created_by_id' => auth()->id(),
-            'amount' => $data['amount'],
-            'balance_after' => $newBalance,
-            'type' => CashTransactionType::DEPOSIT,
-            'description' => $data['description'],
-        ]);
+            return CashTransaction::create([
+                'cash_account_id' => $cashAccount->id,
+                'created_by_id' => auth()->id(),
+                'amount' => $data['amount'],
+                'balance_after' => $newBalance,
+                'type' => CashTransactionType::DEPOSIT,
+                'description' => $data['description'],
+            ]);
+        });
     }
 
     public function withdrawal(array $data): CashTransaction
     {
-        $cashAccount = CashAccount::firstOrFail();
+        return DB::transaction(function () use ($data) {
+            $cashAccount = CashAccount::firstOrFail();
 
-        if ($cashAccount->balance < $data['amount']) {
-            throw ValidationException::withMessages([
-                'amount' => 'Saldo tidak mencukupi.',
+            if ($cashAccount->balance < $data['amount']) {
+                throw ValidationException::withMessages([
+                    'amount' => 'Saldo tidak mencukupi.',
+                ]);
+            }
+
+            $newBalance = $cashAccount->balance - $data['amount'];
+            $cashAccount->update(['balance' => $newBalance]);
+
+            return CashTransaction::create([
+                'cash_account_id' => $cashAccount->id,
+                'created_by_id' => auth()->id(),
+                'amount' => $data['amount'],
+                'balance_after' => $newBalance,
+                'type' => CashTransactionType::WITHDRAWAL,
+                'description' => $data['description'],
             ]);
-        }
-
-        $newBalance = $cashAccount->balance - $data['amount'];
-        $cashAccount->update(['balance' => $newBalance]);
-
-        return CashTransaction::create([
-            'cash_account_id' => $cashAccount->id,
-            'created_by_id' => auth()->id(),
-            'amount' => $data['amount'],
-            'balance_after' => $newBalance,
-            'type' => CashTransactionType::WITHDRAWAL,
-            'description' => $data['description'],
-        ]);
+        });
     }
 
     public function updateTransaction(CashTransaction $transaction, array $data): CashTransaction
     {
-        if (! in_array($transaction->type, [CashTransactionType::DEPOSIT, CashTransactionType::WITHDRAWAL])) {
-            throw ValidationException::withMessages([
-                'amount' => 'Transaksi ini tidak dapat diedit.',
+        return DB::transaction(function () use ($transaction, $data) {
+            if (! in_array($transaction->type, [CashTransactionType::DEPOSIT, CashTransactionType::WITHDRAWAL])) {
+                throw ValidationException::withMessages([
+                    'amount' => 'Transaksi ini tidak dapat diedit.',
+                ]);
+            }
+
+            $cashAccount = CashAccount::firstOrFail();
+            $oldAmount = $transaction->amount;
+            $newAmount = $data['amount'];
+            $isDeposit = $transaction->type === CashTransactionType::DEPOSIT;
+
+            $difference = $isDeposit ? $newAmount - $oldAmount : $oldAmount - $newAmount;
+
+            if ($difference < 0 && $cashAccount->balance < abs($difference)) {
+                throw ValidationException::withMessages([
+                    'amount' => 'Saldo tidak mencukupi.',
+                ]);
+            }
+
+            $newBalance = $cashAccount->balance + $difference;
+            $cashAccount->update(['balance' => $newBalance]);
+
+            $transaction->update([
+                'amount' => $newAmount,
+                'balance_after' => $newBalance,
+                'description' => $data['description'],
             ]);
-        }
 
-        $cashAccount = CashAccount::firstOrFail();
-        $oldAmount = $transaction->amount;
-        $newAmount = $data['amount'];
-        $isDeposit = $transaction->type === CashTransactionType::DEPOSIT;
-
-        $difference = $isDeposit ? $newAmount - $oldAmount : $oldAmount - $newAmount;
-
-        if ($difference < 0 && $cashAccount->balance < abs($difference)) {
-            throw ValidationException::withMessages([
-                'amount' => 'Saldo tidak mencukupi.',
-            ]);
-        }
-
-        $newBalance = $cashAccount->balance + $difference;
-        $cashAccount->update(['balance' => $newBalance]);
-
-        $transaction->update([
-            'amount' => $newAmount,
-            'balance_after' => $newBalance,
-            'description' => $data['description'],
-        ]);
-
-        return $transaction;
+            return $transaction;
+        });
     }
 
     public function deleteTransaction(CashTransaction $transaction): bool
     {
-        if (! in_array($transaction->type, [CashTransactionType::DEPOSIT, CashTransactionType::WITHDRAWAL])) {
-            throw ValidationException::withMessages([
-                'amount' => 'Transaksi ini tidak dapat dihapus.',
-            ]);
-        }
+        return DB::transaction(function () use ($transaction) {
+            if (! in_array($transaction->type, [CashTransactionType::DEPOSIT, CashTransactionType::WITHDRAWAL])) {
+                throw ValidationException::withMessages([
+                    'amount' => 'Transaksi ini tidak dapat dihapus.',
+                ]);
+            }
 
-        $cashAccount = CashAccount::firstOrFail();
-        $isDeposit = $transaction->type === CashTransactionType::DEPOSIT;
+            $cashAccount = CashAccount::firstOrFail();
+            $isDeposit = $transaction->type === CashTransactionType::DEPOSIT;
 
-        $newBalance = $isDeposit
-            ? $cashAccount->balance - $transaction->amount
-            : $cashAccount->balance + $transaction->amount;
+            $newBalance = $isDeposit
+                ? $cashAccount->balance - $transaction->amount
+                : $cashAccount->balance + $transaction->amount;
 
-        if ($newBalance < 0) {
-            throw ValidationException::withMessages([
-                'amount' => 'Saldo tidak mencukupi untuk menghapus transaksi ini.',
-            ]);
-        }
+            if ($newBalance < 0) {
+                throw ValidationException::withMessages([
+                    'amount' => 'Saldo tidak mencukupi untuk menghapus transaksi ini.',
+                ]);
+            }
 
-        $cashAccount->update(['balance' => $newBalance]);
+            $cashAccount->update(['balance' => $newBalance]);
 
-        return $transaction->delete();
+            return $transaction->delete();
+        });
     }
 }