diff --git a/report_income_summary.php b/report_income_summary.php
index f07634b6..b8c49b17 100644
--- a/report_income_summary.php
+++ b/report_income_summary.php
@@ -1,5 +1,5 @@
 <?php include("inc_all_reports.php"); ?>
-<?php 
+<?php
 
 function roundUpToNearestMultiple($n, $increment = 1000)
 {
@@ -7,233 +7,238 @@ function roundUpToNearestMultiple($n, $increment = 1000)
 }
 
 if (isset($_GET['year'])) {
-  $year = intval($_GET['year']);
+    $year = intval($_GET['year']);
 }else{
-  $year = date('Y');
+    $year = date('Y');
 }
 
 if (isset($_GET['year'])) {
-  $year = intval($_GET['year']);
+    $year = intval($_GET['year']);
 }else{
-  $year = date('Y');
+    $year = date('Y');
 }
 
 $sql_payment_years = mysqli_query($mysqli,"SELECT DISTINCT YEAR(payment_date) AS payment_year FROM payments WHERE company_id = $session_company_id UNION SELECT DISTINCT YEAR(revenue_date) AS payment_year FROM revenues WHERE company_id = $session_company_id ORDER BY payment_year DESC");
 
 $sql_categories = mysqli_query($mysqli,"SELECT * FROM categories WHERE category_type = 'Income' AND company_id = $session_company_id ORDER BY category_name ASC");
 
+// Default values
+$largest_income_month = 0;
+$largest_invoice_month = 0;
+
 ?>
 
 <div class="card card-dark">
-  <div class="card-header py-2">
-    <h3 class="card-title mt-2"><i class="fa fa-fw fa-coins"></i> Income Summary</h3>
-    <div class="card-tools">
-      <button type="button" class="btn btn-primary d-print-none" onclick="window.print();"><i class="fas fa-fw fa-print"></i> Print</button>
+    <div class="card-header py-2">
+        <h3 class="card-title mt-2"><i class="fa fa-fw fa-coins"></i> Income Summary</h3>
+        <div class="card-tools">
+            <button type="button" class="btn btn-primary d-print-none" onclick="window.print();"><i class="fas fa-fw fa-print"></i> Print</button>
+        </div>
     </div>
-  </div>
-  <div class="card-body p-0">
-    <form class="p-3">
-      <select onchange="this.form.submit()" class="form-control" name="year">
-        <?php 
-                
-        while ($row = mysqli_fetch_array($sql_payment_years)) {
-          $payment_year = $row['payment_year'];
-        ?>
-        <option <?php if ($year == $payment_year) { ?> selected <?php } ?> > <?php echo $payment_year; ?></option>
-        
-        <?php
-        }
-        ?>
+    <div class="card-body p-0">
+        <form class="p-3">
+            <select onchange="this.form.submit()" class="form-control" name="year">
+                <?php
 
-      </select>
-    </form>
+                while ($row = mysqli_fetch_array($sql_payment_years)) {
+                    $payment_year = $row['payment_year'];
+                    ?>
+                    <option <?php if ($year == $payment_year) { ?> selected <?php } ?> > <?php echo $payment_year; ?></option>
 
-    <canvas id="cashFlow" width="100%" height="20"></canvas>
+                    <?php
+                }
+                ?>
 
-    <div class="table-responsive">
-      <table class="table table-striped">
-        <thead>
-          <tr>
-            <th>Category</th>
-            <th class="text-right">January</th>
-            <th class="text-right">February</th>
-            <th class="text-right">March</th>
-            <th class="text-right">April</th>
-            <th class="text-right">May</th>
-            <th class="text-right">June</th>
-            <th class="text-right">July</th>
-            <th class="text-right">August</th>
-            <th class="text-right">September</th>
-            <th class="text-right">October</th>
-            <th class="text-right">November</th>
-            <th class="text-right">December</th>
-            <th class="text-right">Total</th>
-          </tr>
-        </thead>
-        <tbody>
-          <?php
-          while ($row = mysqli_fetch_array($sql_categories)) {
-            $category_id = $row['category_id'];
-            $category_name = htmlentities($row['category_name']);
+            </select>
+        </form>
 
-          ?>
+        <canvas id="cashFlow" width="100%" height="20"></canvas>
 
-            <tr>
-              <td><?php echo $category_name; ?></td>
-              
-              <?php
+        <div class="table-responsive">
+            <table class="table table-striped">
+                <thead>
+                <tr>
+                    <th>Category</th>
+                    <th class="text-right">January</th>
+                    <th class="text-right">February</th>
+                    <th class="text-right">March</th>
+                    <th class="text-right">April</th>
+                    <th class="text-right">May</th>
+                    <th class="text-right">June</th>
+                    <th class="text-right">July</th>
+                    <th class="text-right">August</th>
+                    <th class="text-right">September</th>
+                    <th class="text-right">October</th>
+                    <th class="text-right">November</th>
+                    <th class="text-right">December</th>
+                    <th class="text-right">Total</th>
+                </tr>
+                </thead>
+                <tbody>
+                <?php
+                while ($row = mysqli_fetch_array($sql_categories)) {
+                    $category_id = $row['category_id'];
+                    $category_name = htmlentities($row['category_name']);
 
-              $total_payment_for_all_months = 0;
-              
-              for($month = 1; $month<=12; $month++) {
-                //Payments to Invoices
-                $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND invoice_category_id = $category_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month");
-                $row = mysqli_fetch_array($sql_payments);
-                $payment_amount_for_month = $row['payment_amount_for_month'];
+                    ?>
 
-                //Revenues
-                $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id = $category_id AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month");
-                $row = mysqli_fetch_array($sql_revenues);
-                $revenues_amount_for_month = $row['revenue_amount_for_month'];
+                    <tr>
+                        <td><?php echo $category_name; ?></td>
 
-                $payment_amount_for_month = $payment_amount_for_month + $revenues_amount_for_month;
-                $total_payment_for_all_months = $payment_amount_for_month + $total_payment_for_all_months;
+                        <?php
 
-              
-              ?>
-                <td class="text-right"><?php echo numfmt_format_currency($currency_format, $payment_amount_for_month, $session_company_currency); ?></td>
-              
-              <?php
-              
-              }
-              
-              ?>
-              
-              <td class="text-right text-bold"><?php echo numfmt_format_currency($currency_format, $total_payment_for_all_months, $session_company_currency); ?></td>
-            </tr>
-          
-          <?php 
+                        $total_payment_for_all_months = 0;
 
-          } 
-          
-          ?>
-          
-          <tr>
-            <th>Total</th>
-            <?php
-              
-            for($month = 1; $month<=12; $month++) {
-              $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_total_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month AND payments.company_id = $session_company_id");
-              $row = mysqli_fetch_array($sql_payments);
-              $payment_total_amount_for_month = $row['payment_total_amount_for_month'];
+                        for($month = 1; $month<=12; $month++) {
+                            //Payments to Invoices
+                            $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND invoice_category_id = $category_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month");
+                            $row = mysqli_fetch_array($sql_payments);
+                            $payment_amount_for_month = $row['payment_amount_for_month'];
 
-              $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id > 0 AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month AND revenues.company_id = $session_company_id");
-              $row = mysqli_fetch_array($sql_revenues);
-              $revenues_total_amount_for_month = $row['revenue_amount_for_month'];
+                            //Revenues
+                            $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id = $category_id AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month");
+                            $row = mysqli_fetch_array($sql_revenues);
+                            $revenues_amount_for_month = $row['revenue_amount_for_month'];
 
-              $payment_total_amount_for_month = $payment_total_amount_for_month + $revenues_total_amount_for_month;
+                            $payment_amount_for_month = $payment_amount_for_month + $revenues_amount_for_month;
+                            $total_payment_for_all_months = $payment_amount_for_month + $total_payment_for_all_months;
 
 
-              $total_payment_for_all_months = $payment_total_amount_for_month + $total_payment_for_all_months;
-              
-            ?>
+                            ?>
+                            <td class="text-right"><?php echo numfmt_format_currency($currency_format, $payment_amount_for_month, $session_company_currency); ?></td>
 
-            <th class="text-right"><?php echo numfmt_format_currency($currency_format, $payment_total_amount_for_month, $session_company_currency); ?></th>
-            <?php
+                            <?php
 
-            }
+                        }
 
-            ?>
+                        ?>
 
-            <th class="text-right"><?php echo numfmt_format_currency($currency_format, $total_payment_for_all_months, $session_company_currency); ?></th>
-          </tr>
-        </tbody>
-      </table>
+                        <td class="text-right text-bold"><?php echo numfmt_format_currency($currency_format, $total_payment_for_all_months, $session_company_currency); ?></td>
+                    </tr>
+
+                    <?php
+
+                }
+
+                ?>
+
+                <tr>
+                    <th>Total</th>
+                    <?php
+
+                    for($month = 1; $month<=12; $month++) {
+                        $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_total_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month AND payments.company_id = $session_company_id");
+                        $row = mysqli_fetch_array($sql_payments);
+                        $payment_total_amount_for_month = $row['payment_total_amount_for_month'];
+
+                        $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id > 0 AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month AND revenues.company_id = $session_company_id");
+                        $row = mysqli_fetch_array($sql_revenues);
+                        $revenues_total_amount_for_month = $row['revenue_amount_for_month'];
+
+                        $payment_total_amount_for_month = $payment_total_amount_for_month + $revenues_total_amount_for_month;
+
+
+                        $total_payment_for_all_months = $payment_total_amount_for_month + $total_payment_for_all_months;
+
+                        ?>
+
+                        <th class="text-right"><?php echo numfmt_format_currency($currency_format, $payment_total_amount_for_month, $session_company_currency); ?></th>
+                        <?php
+
+                    }
+
+                    ?>
+
+                    <th class="text-right"><?php echo numfmt_format_currency($currency_format, $total_payment_for_all_months, $session_company_currency); ?></th>
+                </tr>
+                </tbody>
+            </table>
+        </div>
     </div>
-  </div>
 </div>
 
 <?php include("footer.php"); ?>
 
 <script>
-// Set new default font family and font color to mimic Bootstrap's default styling
-Chart.defaults.global.defaultFontFamily = '-apple-system,system-ui,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif';
-Chart.defaults.global.defaultFontColor = '#292b2c';
+    // Set new default font family and font color to mimic Bootstrap's default styling
+    Chart.defaults.global.defaultFontFamily = '-apple-system,system-ui,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif';
+    Chart.defaults.global.defaultFontColor = '#292b2c';
 
-// Area Chart Example
-var ctx = document.getElementById("cashFlow");
-var myLineChart = new Chart(ctx, {
-  type: 'line',
-  data: {
-    labels: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
-    datasets: [{
-      label: "Income",
-      fill: false,
-      borderColor: "#007bff",
-      pointBackgroundColor: "#007bff",
-      pointBorderColor: "#007bff",
-      pointHoverRadius: 5,
-      pointHoverBackgroundColor: "#007bff",
-      pointHitRadius: 50,
-      pointBorderWidth: 2,
-      data: [
-      <?php
-      for($month = 1; $month<=12; $month++) {
-          $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month AND payments.company_id = $session_company_id");
-          $row = mysqli_fetch_array($sql_payments);
-          $payments_for_month = $row['payment_amount_for_month'];
+    // Area Chart Example
+    var ctx = document.getElementById("cashFlow");
+    var myLineChart = new Chart(ctx, {
+        type: 'line',
+        data: {
+            labels: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
+            datasets: [{
+                label: "Income",
+                fill: false,
+                borderColor: "#007bff",
+                pointBackgroundColor: "#007bff",
+                pointBorderColor: "#007bff",
+                pointHoverRadius: 5,
+                pointHoverBackgroundColor: "#007bff",
+                pointHitRadius: 50,
+                pointBorderWidth: 2,
+                data: [
+                    <?php
 
-          $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id > 0 AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month AND company_id = $session_company_id");
-          $row = mysqli_fetch_array($sql_revenues);
-          $revenues_for_month = $row['revenue_amount_for_month'];
+                    for ($month = 1; $month<=12; $month++) {
+                    $sql_payments = mysqli_query($mysqli,"SELECT SUM(payment_amount) AS payment_amount_for_month FROM payments, invoices WHERE payment_invoice_id = invoice_id AND YEAR(payment_date) = $year AND MONTH(payment_date) = $month AND payments.company_id = $session_company_id");
+                    $row = mysqli_fetch_array($sql_payments);
+                    $payments_for_month = $row['payment_amount_for_month'];
 
-          $income_for_month = $payments_for_month + $revenues_for_month;
-          
-          if ($income_for_month > 0 && $income_for_month > $largest_income_month) {
-            $largest_income_month = $income_for_month;
-          }
-          
+                    $sql_revenues = mysqli_query($mysqli,"SELECT SUM(revenue_amount) AS revenue_amount_for_month FROM revenues WHERE revenue_category_id > 0 AND YEAR(revenue_date) = $year AND MONTH(revenue_date) = $month AND company_id = $session_company_id");
+                    $row = mysqli_fetch_array($sql_revenues);
+                    $revenues_for_month = $row['revenue_amount_for_month'];
 
-        ?>
-          <?php echo "$income_for_month,"; ?>
-        
-        <?php
-        
-        }
+                    $income_for_month = $payments_for_month + $revenues_for_month;
 
-        ?>
+                    if ($income_for_month > 0 && $income_for_month > $largest_income_month) {
+                        $largest_income_month = $income_for_month;
+                    }
 
-      ],
-    }],
-  },
-  options: {
-    scales: {
-      xAxes: [{
-        time: {
-          unit: 'date'
+
+                    ?>
+                    <?php echo "$income_for_month,"; ?>
+
+                    <?php
+
+                    }
+
+                    ?>
+
+                ],
+            }],
         },
-        gridLines: {
-          display: false
-        },
-        ticks: {
-          maxTicksLimit: 12
+        options: {
+            scales: {
+                xAxes: [{
+                    time: {
+                        unit: 'date'
+                    },
+                    gridLines: {
+                        display: false
+                    },
+                    ticks: {
+                        maxTicksLimit: 12
+                    }
+                }],
+                yAxes: [{
+                    ticks: {
+                        min: 0,
+                        max: <?php $max = max(1000, $largest_income_month, $largest_invoice_month); echo roundUpToNearestMultiple($max); ?>,
+                        maxTicksLimit: 5
+                    },
+                    gridLines: {
+                        color: "rgba(0, 0, 0, .125)",
+                    }
+                }],
+            },
+            legend: {
+                display: false
+            }
         }
-      }],
-      yAxes: [{
-        ticks: {
-          min: 0,
-          max: <?php $max = max(1000, $largest_income_month, $largest_invoice_month); echo roundUpToNearestMultiple($max); ?>,
-          maxTicksLimit: 5
-        },
-        gridLines: {
-          color: "rgba(0, 0, 0, .125)",
-        }
-      }],
-    },
-    legend: {
-      display: false
-    }
-  }
-});
+    });
 
-</script>
\ No newline at end of file
+</script>