diff --git a/application/controllers/api/frontend/v1/stv/Konto.php b/application/controllers/api/frontend/v1/stv/Konto.php
index 782f28d00..12892d2f7 100644
--- a/application/controllers/api/frontend/v1/stv/Konto.php
+++ b/application/controllers/api/frontend/v1/stv/Konto.php
@@ -37,6 +37,8 @@ class Konto extends FHCAPI_Controller
 		parent::__construct([
 			'get' => 'student/stammdaten:r',
 			'getBuchungstypen' => 'student/stammdaten:r', // alle?
+			'checkDoubles' => ['admin:r', 'assistenz:r'],
+			'insert' => ['admin:w', 'assistenz:w'],
 			'update' => ['admin:w', 'assistenz:w']
 		]);
 
@@ -61,13 +63,14 @@ class Konto extends FHCAPI_Controller
 	{
 		$this->load->library('form_validation');
 
-		$this->form_validation->set_rules('person_id', 'Person ID', 'required');
-
+		$person_id = $this->input->post('person_id');
+		if (!$person_id || !is_array($person_id))
+			$this->form_validation->set_rules('person_id', 'Person ID', 'required');
 
 		if (!$this->form_validation->run())
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 
-		$person_id = $this->input->post('person_id');
+
 		$studiengang_kz = $this->input->post('studiengang_kz');
 
 		if ($this->input->post('only_open')) {
@@ -124,6 +127,146 @@ class Konto extends FHCAPI_Controller
 		$this->terminateWithSuccess($data);
 	}
 
+	/**
+	 * Check double Buchungen
+	 *
+	 * @return void
+	 */
+	public function checkDoubles()
+	{
+		if (!defined('FAS_DOPPELTE_BUCHUNGSTYPEN_CHECK') || !FAS_DOPPELTE_BUCHUNGSTYPEN_CHECK)
+			$this->terminateWithSuccess(false);
+
+		$this->load->library('form_validation');
+
+		$person_ids = $this->input->post('person_id');
+
+		if (!$person_ids || !is_array($person_ids)) {
+			$person_ids = [$person_ids];
+			$this->form_validation->set_rules('person_id', 'Person ID', 'required');
+		}
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required');
+		$this->form_validation->set_rules('buchungstyp_kurzbz', 'Buchungstyp', 'required');
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+
+		$buchungstypen = unserialize(FAS_DOPPELTE_BUCHUNGSTYPEN_CHECK);
+		$buchung = $this->input->post('buchungstyp_kurzbz');
+		
+		if (!isset($buchungstypen[$buchung]))
+			$this->terminateWithSuccess(false);
+
+		$result = $this->KontoModel->checkDoubleBuchung($person_ids, $this->input->post('studiensemester_kurzbz'), $buchungstypen[$buchung]);
+
+		#$result = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$result = $result->retval;
+
+		if (!$result)
+			$this->terminateWithSuccess(false);
+
+		$persons = array_map(function ($row) {
+			return $row->nachname . ' ' . $row->vorname;
+		}, $result);
+		
+		// TODO(chris): Phrases
+		$result = $this->p->t('konto', 'buchung_vorhanden') . "\n";
+		if (count($persons) > 10) {
+			$result .= "-" . implode("\n-", array_slice($persons, 0, 10)) . "\n";
+			
+			if (count($persons) == 11) {
+				$result .= "\n" . $this->p->t('konto', 'and_1_additional_person');
+			} else {
+				$result .= "\n" . $this->p->t('konto', 'and_x_additional_person', [
+					'x' => count($persons) - 10
+				]);
+			}
+		} else {
+			$result .= "-" . implode("\n-", $persons) . "\n";
+		}
+		$result .= $this->p->t('konto', 'proceed');
+
+		$this->addError($result, 'confirm');
+
+		$this->terminateWithSuccess(true);
+	}
+
+
+	/**
+	 * Save Buchung
+	 *
+	 * @return void
+	 */
+	public function insert()
+	{
+		$this->load->library('form_validation');
+
+		$person_ids = $this->input->post('person_id');
+
+		if (!$person_ids || !is_array($person_ids)) {
+			$person_ids = [$person_ids];
+			$this->form_validation->set_rules('person_id', 'Person ID', 'required');
+		}
+		$this->form_validation->set_rules('betrag', 'Betrag', 'numeric');
+		$this->form_validation->set_rules('buchungsdatum', 'Buchungsdatum', 'is_valid_date');
+		$this->form_validation->set_rules('buchungstext', 'Buchungstext', 'max_length[256]');
+		$this->form_validation->set_rules('mahnspanne', 'Mahnspanne', 'integer');
+		$this->form_validation->set_rules('buchungstyp_kurzbz', 'Buchungstyp', 'required|max_length[32]');
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required|max_length[16]');
+		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required|has_permissions_for_stg[admin:rw,assistenz:rw]');
+		$this->form_validation->set_rules('credit_points', 'Credit Points', 'numeric');
+
+		Events::trigger('konto_insert_validation', $this->form_validation);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+
+		$allowed = [
+			'betrag',
+			'buchungsdatum',
+			'buchungstext',
+			'mahnspanne',
+			'buchungstyp_kurzbz',
+			'studiensemester_kurzbz',
+			'studiengang_kz',
+			'credit_points',
+			'anmerkung'
+		];
+		$data = [
+			'updateamum' => date('c'),
+			'updatevon' => getAuthUID()
+		];
+		foreach ($allowed as $field)
+			if ($this->input->post($field) !== null)
+				$data[$field] = $this->input->post($field);
+
+		if (defined('FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE') && isset(unserialize(FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE)[$data['buchungstyp_kurzbz']])) {
+			$data['kostenstelle'] = unserialize(FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE)[$data['buchungstyp_kurzbz']];
+		}
+
+		$result = [];
+		foreach ($person_ids as $person_id) {
+			$id = $this->KontoModel->insert(array_merge($data, ['person_id' => $person_id]));
+			if (isError($id))
+				$this->addError(getError($id), self::ERROR_TYPE_GENERAL);
+			else {
+				$data = $this->KontoModel->withAdditionalInfo()->load(getData($id));
+				if (isError($data))
+					$this->addError(getError($data), self::ERROR_TYPE_GENERAL);
+				else
+					$result[] = getData($data);
+			}
+		}
+
+		if ($result)
+			$this->terminateWithSuccess($result);
+		// NOTE(chris): else there should already be error in the return object
+	}
+
 	/**
 	 * Save Buchung
 	 *
@@ -134,14 +277,21 @@ class Konto extends FHCAPI_Controller
 		$this->load->library('form_validation');
 
 		$this->form_validation->set_rules('buchungsnr', 'Buchungsnr', 'required');
-		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required|has_permissions_for_stg[admin:rw,assistenz:rw]');
+		$this->form_validation->set_rules('betrag', 'Betrag', 'numeric');
 		$this->form_validation->set_rules('buchungsdatum', 'Buchungsdatum', 'is_valid_date');
-		Events::trigger('konto_update_validation', $this->form_validation);
+		$this->form_validation->set_rules('buchungstext', 'Buchungstext', 'max_length[256]');
+		$this->form_validation->set_rules('mahnspanne', 'Mahnspanne', 'integer');
+		$this->form_validation->set_rules('buchungstyp_kurzbz', 'Buchungstyp', 'required|max_length[32]');
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required|max_length[16]');
+		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required|has_permissions_for_stg[admin:rw,assistenz:rw]');
+		$this->form_validation->set_rules('credit_points', 'Credit Points', 'numeric');
 
+		Events::trigger('konto_update_validation', $this->form_validation);
 
 		if (!$this->form_validation->run())
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 
+
 		$id = $this->input->post('buchungsnr');
 		$allowed = [
 			'betrag',
diff --git a/application/models/crm/Konto_model.php b/application/models/crm/Konto_model.php
index 85ac9234c..77ae04990 100644
--- a/application/models/crm/Konto_model.php
+++ b/application/models/crm/Konto_model.php
@@ -96,6 +96,34 @@ class Konto_model extends DB_Model
 		return $this->getAlleBuchungen($person_id, $studiengang_kz);
 	}
 
+	/**
+	 * Check double Buchungen
+	 *
+	 * @param array				$person_ids
+	 * @param string			$studiensemester_kurzbz
+	 * @param array				$buchungstyp_kurzbzs
+	 *
+	 * @return stdClass
+	 */
+	public function checkDoubleBuchung($person_ids, $studiensemester_kurzbz, $buchungstyp_kurzbzs)
+	{
+		$this->addSelect('vorname');
+		$this->addSelect('nachname');
+
+		$this->addJoin('public.tbl_person', 'person_id');
+
+		$this->db->where_in('person_id', $person_ids);
+		$this->db->where_in('buchungstyp_kurzbz', $buchungstyp_kurzbzs);
+
+		$this->addGroupBy('vorname, nachname');
+		$this->addOrder('nachname');
+		$this->addOrder('vorname');
+
+		return $this->loadWhere([
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		]);
+	}
+
 	/**
 	 * Sets a Payment as paid
 	 */
diff --git a/public/js/api/stv.js b/public/js/api/stv.js
new file mode 100644
index 000000000..2a84ab0b7
--- /dev/null
+++ b/public/js/api/stv.js
@@ -0,0 +1,5 @@
+import konto from './stv/konto.js';
+
+export default {
+	konto
+};
\ No newline at end of file
diff --git a/public/js/api/stv/konto.js b/public/js/api/stv/konto.js
new file mode 100644
index 000000000..0e4069f2c
--- /dev/null
+++ b/public/js/api/stv/konto.js
@@ -0,0 +1,31 @@
+export default {
+	tabulatorConfig(config, self) {
+		config.ajaxURL = 'api/frontend/v1/stv/konto/get';
+		config.ajaxParams = () => {
+			const params = {
+				person_id: self.modelValue.person_id || self.modelValue.map(e => e.person_id),
+				only_open: self.filter,
+				studiengang_kz: self.studiengang_kz_intern ? self.stg_kz : ''
+			};
+			return params;
+		};
+		config.ajaxRequestFunc = (url, config, params) => this.$fhcApi.post(url, params, config);
+		config.ajaxResponse = (url, params, response) => response.data;
+
+		return config;
+	},
+	checkDoubles(data) {
+		return this.$fhcApi.post('api/frontend/v1/stv/konto/checkDoubles', data, {
+			confirmErrorHandler: error => true
+		});
+	},
+	insert(data) {
+		return this.$fhcApi.post('api/frontend/v1/stv/konto/insert', data);
+	},
+	edit(data) {
+		return this.$fhcApi.post('api/frontend/v1/stv/konto/update', data);
+	},
+	getBuchungstypen() {
+		return this.$fhcApi.get('api/frontend/v1/stv/konto/getBuchungstypen');
+	}
+};
\ No newline at end of file
diff --git a/public/js/components/Stv/Studentenverwaltung.js b/public/js/components/Stv/Studentenverwaltung.js
index 42e3cd5dd..57cfe998a 100644
--- a/public/js/components/Stv/Studentenverwaltung.js
+++ b/public/js/components/Stv/Studentenverwaltung.js
@@ -157,7 +157,7 @@ export default {
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 		this.$fhcApi
-			.get('api/frontend/v1/stv/konto/getBuchungstypen')
+			.factory.stv.konto.getBuchungstypen()
 			.then(result => {
 				this.lists.buchungstypen = result.data;
 			})
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Konto.js b/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
index b6b71f50b..849754050 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Konto.js
@@ -1,14 +1,17 @@
 import {CoreFilterCmpt} from "../../../filter/Filter.js";
 import FormInput from "../../../Form/Input.js";
+import KontoNew from "./Konto/New.js";
 import KontoEdit from "./Konto/Edit.js";
 
+// TODO(chris): Phrasen
 // TODO(chris): multi pers
-// TODO(chris): new header(multi pers), edit/row, gegenb.(date) multi, löschen multi, best. multi(recht)
+// TODO(chris): gegenb.(date) multi, löschen multi, best. multi(recht)
 
 export default {
 	components: {
 		CoreFilterCmpt,
 		FormInput,
+		KontoNew,
 		KontoEdit
 	},
 	props: {
@@ -25,6 +28,11 @@ export default {
 		};
 	},
 	computed: {
+		personIds() {
+			if (this.modelValue.person_id)
+				return [this.modelValue.person_id];
+			return this.modelValue.map(e => e.person_id);
+		},
 		stg_kz() {
 			if (this.modelValue.studiengang_kz)
 				return this.modelValue.studiengang_kz;
@@ -153,24 +161,13 @@ export default {
 			return columns;
 		},
 		tabulatorOptions() {
-			return {
-				ajaxURL: 'api/frontend/v1/stv/konto/get',
-				ajaxParams: () => {
-					const params = {
-						person_id: this.modelValue.person_id || this.modelValue.map(e => e.person_id),
-						only_open: this.filter,
-						studiengang_kz: this.studiengang_kz_intern ? this.stg_kz : ''
-					};
-					return params;
-				},
-				ajaxRequestFunc: (url, config, params) => {
-					return this.$fhcApi.post(url, params, config);
-				},
-				ajaxResponse: (url, params, response) => response.data,
+			return this.$fhcApi.factory.stv.konto.tabulatorConfig({
 				dataTree: true,
 				columns: this.tabulatorColumns,
+				selectable: true,
+				selectableRangeMode: 'click',
 				index: 'buchungsnr',
-			};
+			}, this);
 		}
 	},
 	watch: {
@@ -186,6 +183,9 @@ export default {
 			if (!data)
 				return this.reload();
 			this.$refs.table.tabulator.updateData(data);
+		},
+		actionNew() {
+			this.$refs.new.open();
 		}
 	},
 	created() {
@@ -221,8 +221,13 @@ export default {
 			table-only
 			:side-menu="false"
 			:tabulator-options="tabulatorOptions"
+			new-btn-show
+			new-btn-label="Buchung"
+			:new-btn-disabled="stg_kz === ''"
+			@click:new="actionNew"
 			>
 		</core-filter-cmpt>
+		<konto-new ref="new" :config="config" @saved="updateData" :person-ids="personIds" :stg-kz="stg_kz"></konto-new>
 		<konto-edit ref="edit" :config="config" @saved="updateData"></konto-edit>
 	</div>`
 };
\ No newline at end of file
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Konto/Edit.js b/public/js/components/Stv/Studentenverwaltung/Details/Konto/Edit.js
index b3d33b116..d7b2976e3 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Konto/Edit.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Konto/Edit.js
@@ -35,14 +35,14 @@ export default {
 			this.loading = true;
 
 			this.$refs.form
-				.post('api/frontend/v1/stv/konto/update', this.data)
+				.factory.stv.konto.edit(this.data)
 				.then(result => {
 					this.$emit('saved', result.data);
 					this.loading = false;
 					this.$refs.modal.hide();
 					this.$fhcAlert.alertSuccess('Daten wurden gespeichert');
 				})
-				.catch(error => {console.log(error); // TODO(chris): check if working with current fhcApi
+				.catch(error => {
 					this.$fhcAlert.handleSystemError(error);
 					this.loading = false;
 				});
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Konto/New.js b/public/js/components/Stv/Studentenverwaltung/Details/Konto/New.js
new file mode 100644
index 000000000..b47d03456
--- /dev/null
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Konto/New.js
@@ -0,0 +1,199 @@
+import BsModal from "../../../../Bootstrap/Modal.js";
+import BsConfirm from "../../../../Bootstrap/Confirm.js";
+import CoreForm from "../../../../Form/Form.js";
+import FormValidation from "../../../../Form/Validation.js";
+import FormInput from "../../../../Form/Input.js";
+
+// TODO(chris): Phrasen
+
+export default {
+	components: {
+		BsModal,
+		CoreForm,
+		FormValidation,
+		FormInput
+	},
+	inject: {
+		lists: {
+			from: 'lists'
+		},
+		defaultSemester: {
+			from: 'defaultSemester'
+		}
+	},
+	props: {
+		personIds: {
+			type: Array,
+			required: true
+		},
+		stgKz: {
+			type: Number,
+			required: true
+		},
+		config: {
+			type: Object,
+			default: {}
+		}
+	},
+	data() {
+		return {
+			loading: false,
+			data: {}
+		};
+	},
+	computed: {
+		reversedSems() {
+			return this.lists.studiensemester.toReversed();
+		},
+		activeBuchungstypen() {
+			return this.lists.buchungstypen.filter(e => e.aktiv);
+		}
+	},
+	methods: {
+		save() {
+			this.$refs.form.clearValidation();
+			this.loading = true;
+
+			const data = {...{
+				person_id: this.personIds,
+				studiengang_kz: this.stgKz
+			}, ...this.data};
+
+			this.$refs.form
+				.factory.stv.konto.checkDoubles(data)
+				.then(result => result.data
+					? Promise.all(
+						result.errors
+							.filter(e => e.type == 'confirm')
+							.map(e => BsConfirm.popup(Vue.h('div', {class:'text-preline'}, e.message)))
+					)
+					: Promise.resolve())
+				.then(() => data)
+				.then(this.$refs.form.factory.stv.konto.insert)
+				.then(result => {
+					this.$emit('saved', result.data);
+					this.loading = false;
+					this.$refs.modal.hide();
+					this.$fhcAlert.alertSuccess('Daten wurden gespeichert');
+				})
+				.catch(error => {
+					if (error)
+						this.$fhcAlert.handleSystemError(error);
+					this.loading = false;
+				});
+		},
+		open() {
+			this.data = {
+				betrag: '-0.00',
+				mahnspanne: 30,
+				buchungsdatum: new Date(),
+				studiensemester_kurzbz: this.defaultSemester
+			};
+			this.$refs.modal.show();
+		},
+		preventCloseOnLoading(ev) {
+			if (this.loading)
+				ev.returnValue = false;
+		},
+		checkDefaultBetrag(ev) {
+			const typ = this.lists.buchungstypen.filter(e => e.buchungstyp_kurzbz == ev).pop();
+			const amount = typ.standardbetrag || '-0.00';
+			const text = typ.standardtext || '';
+			const creditpoints = typ.credit_points || '';
+
+			if (!this.data.betrag || this.data.betrag == '-0.00')
+				this.data.betrag = amount;
+
+			if (!this.data.buchungstext)
+				this.data.buchungstext = text;
+
+			if (this.config.showCreditpoints && this.data.credit_points == '0.00')
+				this.data.credit_points = creditpoints;
+		}
+	},
+	template: `
+	<core-form ref="form" class="stv-details-konto-edit" @submit.prevent="save">
+		<bs-modal ref="modal" @hide-bs-modal="preventCloseOnLoading">
+			<form-validation></form-validation>
+
+			<fieldset :disabled="loading">
+				<form-input
+					type="select"
+					v-model="data.buchungstyp_kurzbz"
+					name="buchungstyp_kurzbz"
+					label="Typ"
+					@update:model-value="checkDefaultBetrag"
+					>
+					<option v-for="typ in activeBuchungstypen" :key="typ.buchungstyp_kurzbz" :value="typ.buchungstyp_kurzbz" :class="typ.aktiv ? '' : 'text-decoration-line-through text-muted'">
+						{{ typ.beschreibung }}
+					</option>
+				</form-input>
+				<form-input
+					v-model="data.betrag"
+					name="betrag"
+					label="Betrag"
+					>
+				</form-input>
+				<form-input
+					type="DatePicker"
+					v-model="data.buchungsdatum"
+					name="buchungsdatum"
+					label="Buchungsdatum"
+					:enable-time-picker="false"
+					auto-apply
+					>
+				</form-input>
+				<form-input
+					v-model="data.buchungstext"
+					name="buchungstext"
+					label="Buchungstext"
+					>
+				</form-input>
+				<form-input
+					v-if="config.showMahnspanne"
+					v-model="data.mahnspanne"
+					name="mahnspanne"
+					label="Mahnspanne"
+					>
+				</form-input>
+				<form-input
+					type="select"
+					v-model="data.studiensemester_kurzbz"
+					name="studiensemester_kurzbz"
+					label="Studiensemester"
+					>
+					<option v-for="sem in reversedSems" :key="sem.studiensemester_kurzbz" :value="sem.studiensemester_kurzbz">
+						{{ sem.studiensemester_kurzbz }}
+					</option>
+				</form-input>
+				<form-input
+					v-if="config.showCreditpoints"
+					v-model="data.credit_points"
+					name="credit_points"
+					label="Credit Points"
+					>
+				</form-input>
+				<form-input
+					type="textarea"
+					v-model="data.anmerkung"
+					name="anmerkung"
+					label="Anmerkung"
+					>
+				</form-input>
+			</fieldset>
+
+			<template #title>
+				New Buchung
+				<template v-if="personIds.length > 1">
+					({{ personIds.length }} Studenten)
+				</template>
+			</template>
+			<template #footer>
+				<button type="submit" class="btn btn-primary" :disabled="loading">
+					<i v-if="loading" class="fa fa-spinner fa-spin"></i>
+					Speichern
+				</button>
+			</template>
+		</bs-modal>
+	</core-form>`
+};
\ No newline at end of file