diff --git a/interfaces/ISO15118_ev.yaml b/interfaces/ISO15118_ev.yaml
index a060145c97..2ad5364ded 100644
--- a/interfaces/ISO15118_ev.yaml
+++ b/interfaces/ISO15118_ev.yaml
@@ -9,6 +9,10 @@ cmds:
           by the EVCC
         type: string
         $ref: /iso15118#/EnergyTransferMode
+      SelectedPaymentOption:
+        description: Selected payment option
+        type: object
+        $ref: /iso15118#/SelectedPaymentOption
       DepartureTime:
         description: >-
           The time when the EVCC wants to leave the charging station (in seconds)
diff --git a/modules/EV/EvManager/EvManager.hpp b/modules/EV/EvManager/EvManager.hpp
index 4f367ff985..1318504204 100644
--- a/modules/EV/EvManager/EvManager.hpp
+++ b/modules/EV/EvManager/EvManager.hpp
@@ -52,6 +52,7 @@ struct Conf {
     int soc;
     bool keep_cross_boot_plugin_state;
     std::string plugin_commands;
+    bool force_payment_option;
 };
 
 class EvManager : public Everest::ModuleBase {
diff --git a/modules/EV/EvManager/main/car_simulation.cpp b/modules/EV/EvManager/main/car_simulation.cpp
index b5b72e1b3c..bfd5ae8ef4 100644
--- a/modules/EV/EvManager/main/car_simulation.cpp
+++ b/modules/EV/EvManager/main/car_simulation.cpp
@@ -296,22 +296,44 @@ bool CarSimulation::iso_dc_power_on(const CmdArguments& arguments) {
 
 bool CarSimulation::iso_start_v2g_session(const CmdArguments& arguments, bool three_phases) {
     const auto& energy_mode = arguments[0];
-    const auto& departure_time = std::stoi(arguments[1]);
-    const auto& e_amount = std::stoi(arguments[2]);
+    const auto& payment_option = arguments[1];
+    const auto& departure_time = std::stoi(arguments[2]);
+    const auto& e_amount = std::stoi(arguments[3]);
+
+    const auto selected_payment_option = [payment_option,
+                                          this](bool auto_payment_option) -> types::iso15118::SelectedPaymentOption {
+        if (auto_payment_option) {
+            return types::iso15118::SelectedPaymentOption{};
+        }
+        auto selected_payment_option =
+            types::iso15118::SelectedPaymentOption{std::nullopt, config.force_payment_option};
+
+        if (payment_option == "externalpayment") {
+            selected_payment_option.payment_option = types::iso15118::PaymentOption::ExternalPayment;
+        } else if (payment_option == "contract") {
+            selected_payment_option.payment_option = types::iso15118::PaymentOption::Contract;
+        } else {
+            EVLOG_warning << "Go back to auto payment because payment_option was not recognized";
+            selected_payment_option.enforce_payment_option.reset();
+        }
+
+        return selected_payment_option;
+    }(payment_option == "auto");
 
     if (energy_mode == constants::AC) {
         sim_data.energy_mode = EnergyMode::AC;
         if (not three_phases) {
-            r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::AC_single_phase_core, departure_time,
-                                         e_amount);
+            r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::AC_single_phase_core,
+                                         selected_payment_option, departure_time, e_amount);
             charge_mode = ChargeMode::AC;
         } else {
-            r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::AC_three_phase_core, departure_time,
-                                         e_amount);
+            r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::AC_three_phase_core,
+                                         selected_payment_option, departure_time, e_amount);
             charge_mode = ChargeMode::ACThreePhase;
         }
     } else if (energy_mode == constants::DC) {
-        r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::DC_extended, departure_time, e_amount);
+        r_ev[0]->call_start_charging(types::iso15118::EnergyTransferMode::DC_extended, selected_payment_option,
+                                     departure_time, e_amount);
         sim_data.energy_mode = EnergyMode::DC;
         charge_mode = ChargeMode::DC;
     } else {
diff --git a/modules/EV/EvManager/main/car_simulatorImpl.cpp b/modules/EV/EvManager/main/car_simulatorImpl.cpp
index d15d541d01..0554377b9e 100644
--- a/modules/EV/EvManager/main/car_simulatorImpl.cpp
+++ b/modules/EV/EvManager/main/car_simulatorImpl.cpp
@@ -223,15 +223,29 @@ void car_simulatorImpl::register_all_commands() {
             return this->car_simulation->iso_dc_power_on(arguments);
         });
         command_registry->register_command("iso_start_v2g_session", 1, [this](const CmdArguments& arguments) {
+            constexpr auto payment_option = "auto";
+            EVLOG_debug << "Using default payment_options, departure time and eamount";
+            CmdArguments args{arguments[0], payment_option, std::to_string(mod->config.departure_time),
+                              std::to_string(mod->config.e_amount)};
+            return this->car_simulation->iso_start_v2g_session(args, mod->config.three_phases);
+        });
+        command_registry->register_command("iso_start_v2g_session", 2, [this](const CmdArguments& arguments) {
             EVLOG_debug << "Using default departure time and eamount";
-            CmdArguments args{arguments[0], std::to_string(mod->config.departure_time),
+            CmdArguments args{arguments[0], arguments[1], std::to_string(mod->config.departure_time),
                               std::to_string(mod->config.e_amount)};
             return this->car_simulation->iso_start_v2g_session(args, mod->config.three_phases);
         });
         command_registry->register_command("iso_start_v2g_session", 3, [this](const CmdArguments& arguments) {
+            constexpr auto payment_option = "auto";
+            EVLOG_debug << "Using default payment_options";
+            CmdArguments args{arguments[0], payment_option, arguments[1], arguments[2]};
+            return this->car_simulation->iso_start_v2g_session(args, mod->config.three_phases);
+        });
+        command_registry->register_command("iso_start_v2g_session", 4, [this](const CmdArguments& arguments) {
             // 1. Argument: EnergyMode
-            // 2. Argument: DepartureTime
-            // 3. Argument: EAmount
+            // 2. Argument: PaymentOption
+            // 3. Argument: DepartureTime
+            // 4. Argument: EAmount
             return this->car_simulation->iso_start_v2g_session(arguments, mod->config.three_phases);
         });
         command_registry->register_command("iso_stop_charging", 0, [this](const CmdArguments& arguments) {
diff --git a/modules/EV/EvManager/manifest.yaml b/modules/EV/EvManager/manifest.yaml
index 1ef8acaabc..fa6a6b2cea 100644
--- a/modules/EV/EvManager/manifest.yaml
+++ b/modules/EV/EvManager/manifest.yaml
@@ -101,6 +101,10 @@ config:
       Simulation commands for the EV on "plugin" sim command, e.g. sleep 1;iec_wait_pwr_ready;sleep 1;draw_power_regulated 16,3;sleep 30;unplug
     type: string
     default: ""
+  force_payment_option:
+    description: Force the use of the selected payment option
+    type: boolean
+    default: false
 provides:
   main:
     interface: car_simulator
diff --git a/modules/EV/PyEvJosev/module.py b/modules/EV/PyEvJosev/module.py
index eec896a0ca..5506298ee0 100644
--- a/modules/EV/PyEvJosev/module.py
+++ b/modules/EV/PyEvJosev/module.py
@@ -106,6 +106,11 @@ def _handler_start_charging(self, args) -> bool:
         self._es.EAmount_kWh = args['EAmount']
         self._es.EnergyTransferMode = args['EnergyTransferMode']
 
+        if "payment_option" in args['SelectedPaymentOption']:
+            self._es.PaymentOption = args['SelectedPaymentOption']['payment_option']
+        if "enforce_payment_option" in args['SelectedPaymentOption']:
+            self._es.enforce_payment_option = args['SelectedPaymentOption']['enforce_payment_option']
+
         self._ready_event.set()
 
         return True
@@ -140,3 +145,4 @@ def _handler_enable_sae_j2847_v2g_v2h(self, args):
 
 py_ev_josev = PyEVJosevModule()
 py_ev_josev.start_evcc_handler()
+
diff --git a/types/iso15118.yaml b/types/iso15118.yaml
index 7160eb1fb0..86a05b60f0 100644
--- a/types/iso15118.yaml
+++ b/types/iso15118.yaml
@@ -1722,6 +1722,18 @@ types:
         type: string
         $ref: /iso15118#/GridCodeIslandingDetectionMethod
 # EV Side
+  SelectedPaymentOption:
+    description: The selected payment option for the Ev.
+    type: object
+    additionalProperties: false
+    properties:
+      payment_option:
+        description: Selected payment option
+        type: string
+        $ref: /iso15118#/PaymentOption
+      enforce_payment_option:
+        description: Enforce the selected payment option
+        type: boolean
   DcEvParameters:
     description: Target settings for dc charging
     type: object