diff --git a/library/include/mobilisis/calculator_functions.h b/library/include/mobilisis/calculator_functions.h
index 4b09771..bdf2f3f 100644
--- a/library/include/mobilisis/calculator_functions.h
+++ b/library/include/mobilisis/calculator_functions.h
@@ -1,6 +1,7 @@
 #pragma once
 #include <iostream>
 #include "configuration.h"
+#include "payment_method.h"
 #include <QDateTime>
 using namespace std;
 
@@ -30,4 +31,19 @@ public:
 
     // Daily ticket
     QDateTime GetDailyTicketDuration(Configuration* cfg, const QDateTime start_datetime, uint8_t payment_option, bool carry_over);
+
+
+private:
+    // Introduced for PaymentMethod::Steps (e.g. Schoenau)
+    // For tariff of following structure: only steps, no special days, nonstop.
+    uint32_t GetCostFromDuration(Configuration const* cfg, QDateTime const &start, quint64 durationMinutes, uint8_t paymentMethod = PaymentMethod::Steps);
+    uint32_t GetCostFromDuration(Configuration const* cfg, QDateTime const &start, QDateTime const &end, uint8_t paymentMethod = PaymentMethod::Steps);
+
+
+    //
+    // helper functions for PaymentMethod::Steps
+    //
+    QList<int> GetTimeSteps(Configuration const *cfg, int paymentMethod);
+    //
+    uint32_t GetPriceForTimeStep(Configuration const *cfg, uint8_t paymentMethod, int timeStep);
 };
diff --git a/library/src/calculator_functions.cpp b/library/src/calculator_functions.cpp
index a6eedd8..5cbe092 100644
--- a/library/src/calculator_functions.cpp
+++ b/library/src/calculator_functions.cpp
@@ -1,5 +1,5 @@
 #include "calculator_functions.h"
-#include "payment_method.h"
+#include "payment_option.h"
 #include "utilities.h"
 #include "tariff_log.h"
 
@@ -336,11 +336,56 @@ std::string Calculator::GetDurationFromCost(Configuration* cfg,
     return inputDate.toString(Qt::ISODate).toStdString();
 }
 
+///////////////////////////////////////
+
+/// <inheritdoc/>
+///
+
+uint32_t Calculator::GetCostFromDuration(Configuration const* cfg,
+                                         QDateTime const &start,
+                                         quint64 timeStepInMinutes,
+                                         uint8_t paymentMethod) {
+    // for instance, a tariff as used in Schoenau, Koenigssee: only steps, no
+    // special days, nonstop.
+    if (paymentMethod == PaymentMethod::Steps
+     && cfg->SpecialDays.size() == 0
+     && cfg->SpecialDaysWorktime.size() == 0) {
+        QDateTime const end = start.addSecs(timeStepInMinutes*60);
+        return GetCostFromDuration(cfg, start, end, paymentMethod);
+    }
+    return 0;
+}
+
+uint32_t Calculator::GetCostFromDuration(Configuration const* cfg,
+                                         QDateTime const &start,
+                                         QDateTime const &end,
+                                         uint8_t paymentMethod) {
+    if (paymentMethod == PaymentMethod::Steps
+     && cfg->SpecialDays.size() == 0
+     && cfg->SpecialDaysWorktime.size() == 0) {
+        int const timeStepInMinutes = start.secsTo(end) / 60;
+        return GetPriceForTimeStep(cfg, paymentMethod, timeStepInMinutes);
+    }
+    return 0;
+}
+
+
+
+
 ///////////////////////////////////////
 
 /// <inheritdoc/>
 double Calculator::GetCostFromDuration(Configuration* cfg, uint8_t payment_option, const QDateTime start_datetime, QDateTime & end_datetime,  double durationMin, bool nextDay, bool prepaid)
 {
+    // condition for 'PaymentMethod::Steps' (e.g. 332/Schoenau):
+    if (payment_option == PaymentOption::Option1
+        && cfg->SpecialDays.size() == 0
+        && cfg->SpecialDaysWorktime.size() == 0)
+    {
+        QDateTime const end = start_datetime.addSecs(durationMin*60);
+        return GetCostFromDuration(cfg, start_datetime, end, PaymentMethod::Steps);
+    }
+
     // Get input date
     QDateTime inputDate = start_datetime;
 
@@ -541,3 +586,40 @@ double Calculator::GetCostFromDuration(Configuration* cfg, uint8_t payment_optio
     total_cost = 0.0f;
     return ceil(ret_val);
 }
+
+
+
+QList<int> Calculator::GetTimeSteps(Configuration const *cfg, int paymentOption) {
+    QList<int> timeSteps;
+
+    int const pop_id = cfg->PaymentOption.find(paymentOption)->second.pop_id;
+
+    for (auto[itr, rangeEnd] = cfg->PaymentRate.equal_range(pop_id); itr != rangeEnd; ++itr)
+    {
+        int const durationId = itr->second.pra_payment_unit_id;
+        int const durationUnit = cfg->Duration.find(durationId)->second.pun_duration;
+        timeSteps << durationUnit;
+    }
+
+    return timeSteps;
+}
+
+uint32_t Calculator::GetPriceForTimeStep(Configuration const *cfg, uint8_t paymentOption, int timeStep) {
+
+    int const pop_id = cfg->PaymentOption.find(paymentOption)->second.pop_id;
+
+    for (auto[itr, rangeEnd] = cfg->PaymentRate.equal_range(pop_id); itr != rangeEnd; ++itr)
+    {
+        int const payment_unit_id = itr->second.pra_payment_unit_id;
+        int const pun_id = cfg->Duration.find(payment_unit_id)->second.pun_id;
+
+        Q_ASSERT(pun_id == payment_unit_id);
+
+        int const pun_duration = cfg->Duration.find(payment_unit_id)->second.pun_duration;
+        if (timeStep == pun_duration) {
+                return (uint32_t)(itr->second.pra_price);
+        }
+    }
+
+    return 0;
+}