diff --git a/TaxBaik.Web/Components/Admin/Pages/ConsultingActivities.razor b/TaxBaik.Web/Components/Admin/Pages/ConsultingActivities.razor
index 09be9c4..3df5d10 100644
--- a/TaxBaik.Web/Components/Admin/Pages/ConsultingActivities.razor
+++ b/TaxBaik.Web/Components/Admin/Pages/ConsultingActivities.razor
@@ -161,7 +161,11 @@
     private void OpenCreateDialog()
     {
         editingActivity = null;
-        activityForm = new ConsultingActivityForm { ActivityDate = DateTime.Now };
+        activityForm = new ConsultingActivityForm
+        {
+            ActivityDate = DateTime.Now,
+            ClientId = clients.FirstOrDefault()?.Id ?? 0
+        };
         isDialogOpen = true;
     }
 
@@ -181,6 +185,16 @@
 
     private async Task SaveActivity()
     {
+        if (form != null)
+        {
+            await form.Validate();
+            if (!form.IsValid)
+            {
+                Snackbar.Add("필수 항목을 입력해주세요.", Severity.Warning);
+                return;
+            }
+        }
+
         try
         {
             if (editingActivity == null)
diff --git a/TaxBaik.Web/Components/Admin/Pages/Contracts.razor b/TaxBaik.Web/Components/Admin/Pages/Contracts.razor
index 6187d4a..2587a32 100644
--- a/TaxBaik.Web/Components/Admin/Pages/Contracts.razor
+++ b/TaxBaik.Web/Components/Admin/Pages/Contracts.razor
@@ -171,12 +171,26 @@
 
     private void OpenCreateDialog()
     {
-        contractForm = new();
+        contractForm = new ContractForm
+        {
+            ClientId = clients.FirstOrDefault()?.Id ?? 0,
+            StartDate = DateTime.Today
+        };
         isDialogOpen = true;
     }
 
     private async Task SaveContract()
     {
+        if (form != null)
+        {
+            await form.Validate();
+            if (!form.IsValid)
+            {
+                Snackbar.Add("필수 항목을 입력해주세요.", Severity.Warning);
+                return;
+            }
+        }
+
         try
         {
             var newId = await ContractClient.CreateAsync(
diff --git a/TaxBaik.Web/Components/Admin/Pages/RevenueTrackings.razor b/TaxBaik.Web/Components/Admin/Pages/RevenueTrackings.razor
index abb772a..6642373 100644
--- a/TaxBaik.Web/Components/Admin/Pages/RevenueTrackings.razor
+++ b/TaxBaik.Web/Components/Admin/Pages/RevenueTrackings.razor
@@ -156,12 +156,27 @@
 
     private void OpenCreateDialog()
     {
-        revenueForm = new();
+        revenueForm = new RevenueForm
+        {
+            ClientId = clients.FirstOrDefault()?.Id ?? 0,
+            InvoiceDate = DateTime.Today,
+            DueDate = DateTime.Today.AddDays(14)
+        };
         isDialogOpen = true;
     }
 
     private async Task SaveRevenue()
     {
+        if (form != null)
+        {
+            await form.Validate();
+            if (!form.IsValid)
+            {
+                Snackbar.Add("필수 항목을 입력해주세요.", Severity.Warning);
+                return;
+            }
+        }
+
         try
         {
             var newId = await RevenueClient.CreateAsync(
diff --git a/TaxBaik.Web/Components/Admin/Pages/TaxFilingSchedules.razor b/TaxBaik.Web/Components/Admin/Pages/TaxFilingSchedules.razor
index d1a3d93..d3037f0 100644
--- a/TaxBaik.Web/Components/Admin/Pages/TaxFilingSchedules.razor
+++ b/TaxBaik.Web/Components/Admin/Pages/TaxFilingSchedules.razor
@@ -184,12 +184,27 @@
 
     private void OpenCreateDialog()
     {
-        scheduleForm = new TaxFilingScheduleForm { FilingYear = DateTime.Now.Year };
+        scheduleForm = new TaxFilingScheduleForm
+        {
+            FilingYear = DateTime.Now.Year,
+            DueDate = DateTime.Today,
+            ClientId = clients.FirstOrDefault()?.Id ?? 0
+        };
         isDialogOpen = true;
     }
 
     private async Task SaveSchedule()
     {
+        if (form != null)
+        {
+            await form.Validate();
+            if (!form.IsValid)
+            {
+                Snackbar.Add("필수 항목을 입력해주세요.", Severity.Warning);
+                return;
+            }
+        }
+
         try
         {
             var newId = await TaxFilingClient.CreateAsync(
diff --git a/TaxBaik.Web/Components/Admin/Pages/TaxProfiles.razor b/TaxBaik.Web/Components/Admin/Pages/TaxProfiles.razor
index ee850a9..407d357 100644
--- a/TaxBaik.Web/Components/Admin/Pages/TaxProfiles.razor
+++ b/TaxBaik.Web/Components/Admin/Pages/TaxProfiles.razor
@@ -154,7 +154,12 @@ else
     {
         isEditMode = false;
         editingProfile = null;
-        profileForm = new();
+        profileForm = new TaxProfileForm
+        {
+            ClientId = clients.FirstOrDefault()?.Id ?? 0,
+            TaxRiskLevel = "normal",
+            NextFilingDueDate = DateTime.Today.AddMonths(1)
+        };
         isDialogOpen = true;
     }
 
@@ -175,6 +180,16 @@ else
 
     private async Task SaveProfile()
     {
+        if (form != null)
+        {
+            await form.Validate();
+            if (!form.IsValid)
+            {
+                Snackbar.Add("필수 항목을 입력해주세요.", Severity.Warning);
+                return;
+            }
+        }
+
         try
         {
             if (isEditMode)
@@ -194,6 +209,13 @@ else
                     profileForm.BusinessType);
                 if (newId > 0)
                 {
+                    // 생성 후 상태 업데이트 처리
+                    await TaxProfileClient.UpdateAsync(
+                        newId,
+                        profileForm.BusinessType,
+                        null,
+                        profileForm.NextFilingDueDate,
+                        profileForm.TaxRiskLevel);
                     Snackbar.Add("세무 프로필이 추가되었습니다.", Severity.Success);
                 }
             }