diff --git a/FUTURE.md b/FUTURE.md
index a8d7962..ffbb672 100644
--- a/FUTURE.md
+++ b/FUTURE.md
@@ -3,7 +3,7 @@
 **This document tracks potential future enhancements for Bill Tracker.**
 
 **Last Updated:** 2026-05-10  
-**Current Version:** v0.23.3
+**Current Version:** v0.23.4
 
 ## How to Use This Document
 
diff --git a/HISTORY.md b/HISTORY.md
index 255154b..e9ada5f 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,12 @@
 # Bill Tracker — Changelog
 
+## v0.23.4
+
+### Fixed
+- **Clear Demo Data button now works** — Removed misleading "coming soon" placeholder text. The Clear Demo Data button with AlertDialog confirmation is now accessible from the seeded state view.
+- **Seed script user ID bug** — Fixed `seedDemoData.js` creating bills with wrong user ID (`userId` instead of `targetUserId`).
+- **Removed duplicate seed endpoint** — Deleted redundant `/api/settings/seed-demo-data` route (canonical endpoint is `/api/user/seed-demo-data`).
+
 ## v0.23.3
 
 ### Changed
diff --git a/client/lib/version.js b/client/lib/version.js
index 6c49a50..a6d8f5a 100644
--- a/client/lib/version.js
+++ b/client/lib/version.js
@@ -1,10 +1,10 @@
-export const APP_VERSION = '0.23.3';
+export const APP_VERSION = '0.23.4';
 export const APP_NAME    = 'BillTracker';
 
 export const RELEASE_NOTES = {
-  version: '0.23.3',
+  version: '0.23.4',
   date: '2026-05-10',
   highlights: [
-    { icon: '✅', title: 'AlertDialog Integration', desc: 'Replaced native confirm() calls with shadcn/ui AlertDialog for consistent UI across tracker and data pages.' },
+    { icon: '🧹', title: 'Clear Demo Data Fix', desc: 'Fixed Clear Demo Data button — removed misleading placeholder, made button accessible from seeded state, fixed seed script user ID bug, and removed duplicate endpoint.' },
   ],
 };
\ No newline at end of file
diff --git a/client/pages/DataPage.jsx b/client/pages/DataPage.jsx
index 88b45c3..ddb3288 100644
--- a/client/pages/DataPage.jsx
+++ b/client/pages/DataPage.jsx
@@ -1509,9 +1509,27 @@ function SeedDemoDataSection({ onSeeded }) {
               <Button size="sm" variant="outline" onClick={() => { setSeeded(false); setResult(null); }}>
                 Reset
               </Button>
-              <p className="text-xs text-muted-foreground">
-                Temp demo data removal coming soon ✨
-              </p>
+              <AlertDialog open={showClearConfirm} onOpenChange={setShowClearConfirm}>
+                <AlertDialogTrigger asChild>
+                  <Button size="sm" variant="destructive" disabled={clearing}>
+                    {clearing ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />Clearing…</> : 'Clear Demo Data'}
+                  </Button>
+                </AlertDialogTrigger>
+                <AlertDialogContent>
+                  <AlertDialogHeader>
+                    <AlertDialogTitle>Clear Demo Data</AlertDialogTitle>
+                    <AlertDialogDescription>
+                      This action will remove {result?.billsCreated || 0} demo bills and {result?.categoriesCreated || 0} demo categories from your account. This action cannot be undone.
+                    </AlertDialogDescription>
+                  </AlertDialogHeader>
+                  <AlertDialogFooter>
+                    <AlertDialogCancel>Cancel</AlertDialogCancel>
+                    <AlertDialogAction onClick={handleClearDemoData} className="bg-destructive text-destructive-foreground hover:bg-destructive/90">
+                      {clearing ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />Clearing…</> : 'Clear Data'}
+                    </AlertDialogAction>
+                  </AlertDialogFooter>
+                </AlertDialogContent>
+              </AlertDialog>
             </div>
           </div>
         </div>
@@ -1527,55 +1545,12 @@ function SeedDemoDataSection({ onSeeded }) {
           The data will be associated with your account.
         </p>
         
-        {/* Temp Data Deletion Placeholder */}
-        <div className="mt-4 rounded-md bg-muted/40 border border-border/60 p-3">
-          <div className="flex items-start gap-2.5">
-            <AlertTriangle className="mt-0.5 h-4 w-4 text-amber-600 dark:text-amber-500 shrink-0" />
-            <div className="space-y-1">
-              <p className="text-xs font-semibold text-amber-700 dark:text-amber-500">Temp Demo Data Removal</p>
-              <p className="text-xs text-muted-foreground">
-                Demo data removal functionality is coming soon. Once fixed, you'll be able to clear all seeded demo bills and categories with one click.
-              </p>
-            </div>
-          </div>
-        </div>
-        
         <div className="mt-4 space-y-4">
           <div className="border-t border-border pt-4">
             <Button size="sm" variant="outline" onClick={handleSeed} disabled={loading}>
               {loading ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />Seeding…</> : 'Seed Demo Data'}
             </Button>
           </div>
-          {seeded && (
-            <div className="border-t border-border pt-4">
-              <div className="flex items-center justify-between">
-                <p className="text-xs text-muted-foreground">
-                  This will remove only seeded demo bills and categories from your account.
-                </p>
-                <AlertDialog open={showClearConfirm} onOpenChange={setShowClearConfirm}>
-                  <AlertDialogTrigger asChild>
-                    <Button size="sm" variant="destructive" disabled={clearing}>
-                      {clearing ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />Clearing…</> : 'Clear Demo Data'}
-                    </Button>
-                  </AlertDialogTrigger>
-                  <AlertDialogContent>
-                    <AlertDialogHeader>
-                      <AlertDialogTitle>Clear Demo Data</AlertDialogTitle>
-                      <AlertDialogDescription>
-                        This action will remove {result?.billsCreated || 0} demo bills and {result?.categoriesCreated || 0} demo categories from your account. This action cannot be undone.
-                      </AlertDialogDescription>
-                    </AlertDialogHeader>
-                    <AlertDialogFooter>
-                      <AlertDialogCancel>Cancel</AlertDialogCancel>
-                      <AlertDialogAction onClick={handleClearDemoData} className="bg-destructive text-destructive-foreground hover:bg-destructive/90">
-                        {clearing ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />Clearing…</> : 'Clear Data'}
-                      </AlertDialogAction>
-                    </AlertDialogFooter>
-                  </AlertDialogContent>
-                </AlertDialog>
-              </div>
-            </div>
-          )}
         </div>
       </div>
     </SectionCard>
diff --git a/package.json b/package.json
index cd31ed9..12f38a1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bill-tracker",
-  "version": "0.23.3",
+  "version": "0.23.4",
   "description": "Monthly bill tracking system",
   "main": "server.js",
   "scripts": {
diff --git a/routes/settings.js b/routes/settings.js
index fe07142..6192120 100644
--- a/routes/settings.js
+++ b/routes/settings.js
@@ -3,7 +3,6 @@
 const express = require('express');
 const router  = express.Router();
 const { getDb, getSetting, setSetting } = require('../db/database');
-const { seedDemoData } = require('../scripts/seedDemoData');
 
 // Keys a regular user is allowed to read and write.
 // Admin/SMTP/backup/auth settings are excluded — they are only readable through
@@ -38,20 +37,4 @@ router.put('/', (req, res) => {
   res.json(settings);
 });
 
-// POST /api/settings/seed-demo-data — seeds 20 demo bills for the requesting user
-router.post('/seed-demo-data', (req, res) => {
-  try {
-    const result = seedDemoData(req.user.id);
-    res.json({
-      success: true,
-      message: `Created ${result.billsCreated} demo bills and ${result.categoriesCreated} demo categories`,
-      billsCreated: result.billsCreated,
-      categoriesCreated: result.categoriesCreated,
-    });
-  } catch (err) {
-    const status = err.status || 500;
-    res.status(status).json({ error: status === 500 ? 'Seed operation failed' : err.message });
-  }
-});
-
 module.exports = router;
diff --git a/scripts/seedDemoData.js b/scripts/seedDemoData.js
index 506b10f..9d0e7d5 100644
--- a/scripts/seedDemoData.js
+++ b/scripts/seedDemoData.js
@@ -138,7 +138,7 @@ function seedDemoData(userId = null) {
 
     try {
       insertBill.run(
-        userId,
+        targetUserId,
         billData.name,
         category,
         billData.dueDay || Math.floor(Math.random() * 28) + 1,