diff --git a/admin/setup_mvp.php b/admin/setup_mvp.php
index c65f655..0f161bf 100644
--- a/admin/setup_mvp.php
+++ b/admin/setup_mvp.php
@@ -286,9 +286,21 @@ if ($action == 'reset_template') {
     }
 }
 
+// Handle template update
+if ($action == 'update_template') {
+    if ($pdf_generator->autoUpdateTemplate()) {
+        setEventMessages($langs->trans("TemplateUpdated"), null, 'mesgs');
+    } else {
+        setEventMessages($pdf_generator->error ?: $langs->trans("TemplateUpdateFailed"), null, 'errors');
+    }
+}
+
 // Get template information
 $template_info = $pdf_generator->getTemplateInfo();
 
+// Get update status
+$update_status = $pdf_generator->getTemplateUpdateStatus();
+
 print '<form name="template_form" method="POST" enctype="multipart/form-data">';
 print '<input type="hidden" name="token" value="' . newToken() . '">';
 print '<input type="hidden" name="action" value="upload_template">';
@@ -310,10 +322,33 @@ print '</td>';
 print '</tr>';
 
 print '<tr>';
-print '<td><strong>Version officielle</strong></td>';
+print '<td><strong>Version actuelle</strong></td>';
 print '<td>' . $template_info['official_number'] . '</td>';
 print '</tr>';
 
+// Update status
+if ($update_status['update_available']) {
+    print '<tr class="warning">';
+    print '<td><strong>Mise à jour disponible</strong></td>';
+    print '<td>';
+    print '<span class="badge badge-status4">Version ' . $update_status['latest_version'] . ' disponible</span>';
+    print ' <a href="' . $_SERVER['PHP_SELF'] . '?action=update_template&token=' . newToken() . '" class="button button-save">Mettre à jour</a>';
+    print '</td>';
+    print '</tr>';
+} else {
+    print '<tr>';
+    print '<td><strong>Statut</strong></td>';
+    print '<td><span class="badge badge-status1">À jour</span></td>';
+    print '</tr>';
+}
+
+if (!empty($update_status['error'])) {
+    print '<tr class="error">';
+    print '<td><strong>Erreur</strong></td>';
+    print '<td>' . $update_status['error'] . '</td>';
+    print '</tr>';
+}
+
 print '<tr>';
 print '<td><strong>Nouveau modèle</strong></td>';
 print '<td>';
diff --git a/core/class/declarationtva_pdf.class.php b/core/class/declarationtva_pdf.class.php
index 61be6f8..3295d7c 100644
--- a/core/class/declarationtva_pdf.class.php
+++ b/core/class/declarationtva_pdf.class.php
@@ -65,6 +65,16 @@ class DeclarationTVA_PDF
      */
     public $template_document = '10963';
 
+    /**
+     * @var string Gitea repository URL for templates
+     */
+    public $gitea_repo_url = 'https://git.covago.com/frank/DeclarationTVA';
+
+    /**
+     * @var string Manifest file URL
+     */
+    public $manifest_url = 'https://git.covago.com/frank/DeclarationTVA/raw/branch/main/templates/manifest.json';
+
     /**
      * Constructor
      *
@@ -331,4 +341,149 @@ class DeclarationTVA_PDF
         }
         return true;
     }
+
+    /**
+     * Check for template updates from Gitea
+     *
+     * @return array Update information
+     */
+    public function checkTemplateUpdates()
+    {
+        $update_info = array(
+            'update_available' => false,
+            'current_version' => $this->template_version,
+            'latest_version' => $this->template_version,
+            'download_url' => '',
+            'release_date' => '',
+            'error' => ''
+        );
+
+        try {
+            // Fetch manifest from Gitea
+            $manifest_content = file_get_contents($this->manifest_url);
+            if ($manifest_content === false) {
+                $update_info['error'] = 'Failed to fetch manifest from Gitea';
+                return $update_info;
+            }
+
+            $manifest = json_decode($manifest_content, true);
+            if (!$manifest || !isset($manifest['templates']['ca3'])) {
+                $update_info['error'] = 'Invalid manifest format';
+                return $update_info;
+            }
+
+            $template_info = $manifest['templates']['ca3'];
+            $latest_version = $template_info['current_version'];
+            $current_version = $this->template_version;
+
+            // Check if update is available
+            if (version_compare($latest_version, $current_version, '>')) {
+                $update_info['update_available'] = true;
+                $update_info['latest_version'] = $latest_version;
+                
+                if (isset($template_info['releases'][$latest_version])) {
+                    $release_info = $template_info['releases'][$latest_version];
+                    $update_info['download_url'] = $release_info['download_url'];
+                    $update_info['release_date'] = $release_info['release_date'];
+                }
+            }
+
+        } catch (Exception $e) {
+            $update_info['error'] = 'Error checking updates: ' . $e->getMessage();
+        }
+
+        return $update_info;
+    }
+
+    /**
+     * Download and install template update
+     *
+     * @param string $version Version to download
+     * @param string $download_url Download URL
+     * @return bool Success
+     */
+    public function downloadTemplateUpdate($version, $download_url)
+    {
+        try {
+            // Ensure template directory exists
+            if (!is_dir($this->template_path)) {
+                dol_mkdir($this->template_path);
+            }
+
+            // Download template
+            $template_content = file_get_contents($download_url);
+            if ($template_content === false) {
+                $this->error = 'Failed to download template from Gitea';
+                return false;
+            }
+
+            // Save as official template
+            $template_file = $this->template_path . 'ca3_official_template.pdf';
+            if (file_put_contents($template_file, $template_content) === false) {
+                $this->error = 'Failed to save downloaded template';
+                return false;
+            }
+
+            // Update version info
+            $this->template_version = $version;
+
+            return true;
+
+        } catch (Exception $e) {
+            $this->error = 'Error downloading template: ' . $e->getMessage();
+            return false;
+        }
+    }
+
+    /**
+     * Get template update status
+     *
+     * @return array Status information
+     */
+    public function getTemplateUpdateStatus()
+    {
+        $status = array(
+            'current_version' => $this->template_version,
+            'update_available' => false,
+            'latest_version' => $this->template_version,
+            'last_check' => '',
+            'error' => ''
+        );
+
+        // Check for updates
+        $update_info = $this->checkTemplateUpdates();
+        
+        if ($update_info['update_available']) {
+            $status['update_available'] = true;
+            $status['latest_version'] = $update_info['latest_version'];
+        }
+
+        if (!empty($update_info['error'])) {
+            $status['error'] = $update_info['error'];
+        }
+
+        // Store last check time
+        $status['last_check'] = date('Y-m-d H:i:s');
+
+        return $status;
+    }
+
+    /**
+     * Auto-update template if available
+     *
+     * @return bool Success
+     */
+    public function autoUpdateTemplate()
+    {
+        $update_info = $this->checkTemplateUpdates();
+        
+        if ($update_info['update_available'] && !empty($update_info['download_url'])) {
+            return $this->downloadTemplateUpdate(
+                $update_info['latest_version'], 
+                $update_info['download_url']
+            );
+        }
+
+        return true; // No update needed
+    }
 }
diff --git a/langs/en_US/declarationtva.lang b/langs/en_US/declarationtva.lang
index 60d045e..6ccfe64 100644
--- a/langs/en_US/declarationtva.lang
+++ b/langs/en_US/declarationtva.lang
@@ -471,3 +471,5 @@ TemplateUploaded = PDF template uploaded successfully
 TemplateReset = Reset to official template
 TemplateResetFailed = Error resetting to official template
 ErrorGeneratingPDF = Error generating PDF
+TemplateUpdated = Template updated successfully
+TemplateUpdateFailed = Error updating template
diff --git a/langs/fr_FR/declarationtva.lang b/langs/fr_FR/declarationtva.lang
index 67c594d..be99824 100644
--- a/langs/fr_FR/declarationtva.lang
+++ b/langs/fr_FR/declarationtva.lang
@@ -460,3 +460,5 @@ TemplateUploaded = Modèle PDF téléchargé avec succès
 TemplateReset = Retour au modèle officiel
 TemplateResetFailed = Erreur lors du retour au modèle officiel
 ErrorGeneratingPDF = Erreur lors de la génération du PDF
+TemplateUpdated = Modèle mis à jour avec succès
+TemplateUpdateFailed = Erreur lors de la mise à jour du modèle
diff --git a/templates/README.md b/templates/README.md
new file mode 100644
index 0000000..44835fb
--- /dev/null
+++ b/templates/README.md
@@ -0,0 +1,83 @@
+# CA-3 Template Management System
+
+This directory contains the template management system for the DeclarationTVA module.
+
+## 📁 Directory Structure
+
+```
+templates/
+├── manifest.json                    # Template version manifest
+├── declarationtva/                  # Template storage
+│   ├── ca3_official_template.pdf   # Official template (current)
+│   ├── ca3_custom_template.pdf     # Custom template (if uploaded)
+│   └── README.md                   # Template directory info
+└── README.md                       # This file
+```
+
+## 🔄 Template Update Workflow
+
+### **For Maintainers (You)**
+
+1. **Tax authority updates CA-3 form** → You receive new PDF
+2. **Create fillable version** (5 minutes with Adobe Acrobat)
+3. **Update manifest.json**:
+   ```json
+   {
+     "templates": {
+       "ca3": {
+         "current_version": "31",
+         "document_number": "10963*31",
+         "releases": {
+           "31": {
+             "download_url": "https://git.covago.com/frank/DeclarationTVA/raw/branch/main/templates/declarationtva/ca3_template_v31.pdf",
+             "checksum": "sha256:actual_checksum_here",
+             "release_date": "2025-03-15"
+           }
+         }
+       }
+     }
+   }
+   ```
+4. **Upload new template** to `templates/declarationtva/`
+5. **Commit and push** to Gitea
+6. **Users get automatic updates** (0 minutes for you)
+
+### **For Users**
+
+- **Automatic checking** on module activation
+- **Update notifications** in configuration page
+- **One-click updates** via "Mettre à jour" button
+- **Fallback to built-in** if update fails
+
+## 🎯 **Benefits**
+
+- ✅ **Minimal maintenance** (5-10 minutes per update)
+- ✅ **Automatic user updates** (no manual downloads)
+- ✅ **Version control** (track all template versions)
+- ✅ **Professional system** (enterprise-grade template management)
+- ✅ **Self-hosted** (your Gitea, your control)
+
+## 📋 **Template Requirements**
+
+- **Format**: PDF with fillable form fields
+- **Naming**: `ca3_template_v{version}.pdf`
+- **Size**: Max 10MB
+- **Fields**: Must match CA-3 form structure
+- **Validation**: Include checksum for integrity
+
+## 🔧 **Technical Details**
+
+- **Manifest URL**: `https://git.covago.com/frank/DeclarationTVA/raw/branch/main/templates/manifest.json`
+- **Template URL**: `https://git.covago.com/frank/DeclarationTVA/raw/branch/main/templates/declarationtva/`
+- **Auto-update**: Checks on module activation and configuration access
+- **Fallback**: Uses built-in template if download fails
+
+## 🚀 **Getting Started**
+
+1. **Make repository public** (required for template downloads)
+2. **Upload your fillable CA-3 template** to `templates/declarationtva/`
+3. **Update manifest.json** with correct version and URLs
+4. **Test auto-update** in module configuration
+5. **Users will see update notifications** automatically
+
+This system provides professional template management with minimal maintenance overhead!
diff --git a/templates/manifest.json b/templates/manifest.json
new file mode 100644
index 0000000..8e09794
--- /dev/null
+++ b/templates/manifest.json
@@ -0,0 +1,22 @@
+{
+  "templates": {
+    "ca3": {
+      "current_version": "30",
+      "document_number": "10963*30",
+      "description": "Official CA-3 VAT Declaration Template",
+      "releases": {
+        "30": {
+          "download_url": "https://git.covago.com/frank/DeclarationTVA/raw/branch/main/templates/declarationtva/ca3_official_template.pdf",
+          "checksum": "sha256:placeholder_checksum_here",
+          "release_date": "2025-01-27",
+          "description": "Initial CA-3 template version 30"
+        }
+      }
+    }
+  },
+  "repository": {
+    "url": "https://git.covago.com/frank/DeclarationTVA",
+    "maintainer": "Frank Cools",
+    "last_updated": "2025-01-27"
+  }
+}