diff --git a/application/controllers/api/frontend/v1/stv/Filter.php b/application/controllers/api/frontend/v1/stv/Filter.php
new file mode 100644
index 000000000..d5ee44d13
--- /dev/null
+++ b/application/controllers/api/frontend/v1/stv/Filter.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * Copyright (C) 2024 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * This controller operates between (interface) the JS (GUI) and the back-end
+ * Provides data to the ajax get calls about the Studiengang filter
+ * Listens to ajax post calls to change the Studiengang filter data
+ * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
+ */
+class Filter extends FHCAPI_Controller
+{
+	/**
+	 * Calls the parent's constructor and prepares libraries and phrases
+	 */
+	public function __construct()
+	{
+		// TODO(chris): permissions
+		parent::__construct([
+			'getStg' => 'student/stammdaten:r',#self::PERM_LOGGED,
+			'setStg' => 'student/stammdaten:r'#self::PERM_LOGGED
+		]);
+
+		// Load models
+		$this->load->model('system/Variable_model', 'VariableModel');
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 * Get current setting
+	 *
+	 * @return void
+	 */
+	public function getStg()
+	{
+		$result = $this->VariableModel->getVariables(getAuthUID(), ['kontofilterstg']);
+
+		#$data = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$data = $result->retval;
+
+		$this->terminateWithSuccess($data['kontofilterstg'] == 'true');
+	}
+
+	/**
+	 * Set current setting
+	 *
+	 * @return void
+	 */
+	public function setStg()
+	{
+		$this->load->library('form_validation');
+
+		$studiengang_kz = $this->input->post('studiengang_kz');
+
+		if ($studiengang_kz === null) {
+			$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required');
+
+			if (!$this->form_validation->run())
+				$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$result = $this->VariableModel->setVariable(getAuthUID(), 'kontofilterstg', $studiengang_kz ? 'true' : 'false');
+
+		#$this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$this->terminateWithSuccess(true);
+	}
+}
diff --git a/public/js/api/stv.js b/public/js/api/stv.js
index 2a84ab0b7..ab3e918a1 100644
--- a/public/js/api/stv.js
+++ b/public/js/api/stv.js
@@ -1,5 +1,7 @@
+import filter from './stv/filter.js';
 import konto from './stv/konto.js';
 
 export default {
+	filter,
 	konto
 };
\ No newline at end of file
diff --git a/public/js/api/stv/filter.js b/public/js/api/stv/filter.js
new file mode 100644
index 000000000..13c7f55fd
--- /dev/null
+++ b/public/js/api/stv/filter.js
@@ -0,0 +1,10 @@
+export default {
+	getStg() {
+		return this.$fhcApi.get('api/frontend/v1/stv/filter/getStg');
+	},
+	setStg(studiengang_kz) {
+		return this.$fhcApi.post('api/frontend/v1/stv/filter/setStg', {
+			studiengang_kz
+		});
+	}
+};
\ No newline at end of file
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Konto.js b/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
index 1acfcd9dd..247a63d95 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
@@ -3,6 +3,7 @@ import FormInput from "../../../Form/Input.js";
 import KontoNew from "./Konto/New.js";
 import KontoEdit from "./Konto/Edit.js";
 
+const LOCAL_STORAGE_ID_FILTER = 'stv_details_konto_2024-01-11_filter';
 
 export default {
 	components: {
@@ -165,11 +166,24 @@ export default {
 					'_blank'
 				);
 			}
+		},
+		setFilter(type) {
+			if (type == 'open')
+				window.localStorage.setItem(LOCAL_STORAGE_ID_FILTER, this.filter ? 1 : 0);
+			else if (type == 'current_stg')
+				this.$fhcApi.factory
+					.stv.filter.setStg(this.studiengang_kz)
+					.catch(this.$fhcAlert.handleSystemError);
+
+			this.$nextTick(this.$refs.table.reloadTable);
 		}
 	},
 	created() {
-		// TODO(chris): persist filter + studiengang_kz
-		// TODO(chris): studiengang_kz in variablelib
+		this.filter = window.localStorage.getItem(LOCAL_STORAGE_ID_FILTER) == 1;
+		this.$fhcApi.factory
+			.stv.filter.getStg()
+			.then(result => this.studiengang_kz = result.data)
+			.catch(this.$fhcAlert.handleSystemError);
 	},
 	template: `
 	<div class="stv-details-konto h-100 d-flex flex-column">
@@ -180,7 +194,7 @@ export default {
 					type="checkbox"
 					:label="$p.t('stv/konto_filter_open')"
 					v-model="filter"
-					@update:model-value="() => $nextTick($refs.table.reloadTable)"
+					@update:model-value="setFilter('open')"
 					>
 				</form-input>
 			</div>
@@ -191,7 +205,7 @@ export default {
 					:label="$p.t('stv/konto_filter_current_stg')"
 					v-model="studiengang_kz_intern"
 					:disabled="!stg_kz"
-					@update:model-value="() => $nextTick($refs.table.reloadTable)"
+					@update:model-value="setFilter('current_stg')"
 					>
 				</form-input>
 			</div>