diff --git a/scripts/pylib/twister/twisterlib/reports.py b/scripts/pylib/twister/twisterlib/reports.py
index c0f06fc514288a..cdbfc63373fd94 100644
--- a/scripts/pylib/twister/twisterlib/reports.py
+++ b/scripts/pylib/twister/twisterlib/reports.py
@@ -46,13 +46,13 @@ def __init__(self, plan, env) -> None:
         self.instances = plan.instances
         self.platforms = plan.platforms
         self.selected_platforms = plan.selected_platforms
-        self.filtered_platforms = plan.filtered_platforms
         self.env = env
         self.timestamp = datetime.now().isoformat()
         self.outdir = os.path.abspath(env.options.outdir)
         self.instance_fail_count = plan.instance_fail_count
         self.footprint = None
 
+
     @staticmethod
     def process_log(log_file):
         filtered_string = ""
@@ -601,19 +601,21 @@ def summary(self, results, ignore_unrecognized_sections, duration):
         )
 
         total_platforms = len(self.platforms)
+        filtered_platforms = set(instance.platform.name for instance in self.instances.values()
+                                  if instance.status not in[TwisterStatus.FILTER, TwisterStatus.NOTRUN, TwisterStatus.SKIP])
         # if we are only building, do not report about tests being executed.
         if self.platforms and not self.env.options.build_only:
             executed_cases = results.cases - results.filtered_cases - results.skipped_cases - results.notrun_cases
             pass_rate = 100 * (float(results.passed_cases) / float(executed_cases)) \
                 if executed_cases != 0 else 0
-            platform_rate = (100 * len(self.filtered_platforms) / len(self.platforms))
+            platform_rate = (100 * len(filtered_platforms) / len(self.platforms))
             logger.info(
                 f'{results.passed_cases} of {executed_cases} executed test cases passed ({pass_rate:02.2f}%)'
                 f'{", " + str(results.blocked_cases) + " blocked" if results.blocked_cases else ""}'
                 f'{", " + str(results.failed_cases) + " failed" if results.failed_cases else ""}'
                 f'{", " + str(results.error_cases) + " errored" if results.error_cases else ""}'
                 f'{", " + str(results.none_cases) + " without a status" if results.none_cases else ""}'
-                f' on {len(self.filtered_platforms)} out of total {total_platforms} platforms ({platform_rate:02.2f}%).'
+                f' on {len(filtered_platforms)} out of total {total_platforms} platforms ({platform_rate:02.2f}%).'
             )
             if results.skipped_cases or results.notrun_cases:
                 logger.info(
diff --git a/scripts/pylib/twister/twisterlib/testplan.py b/scripts/pylib/twister/twisterlib/testplan.py
index da8eaa0a749086..930b9f6fa3ca66 100755
--- a/scripts/pylib/twister/twisterlib/testplan.py
+++ b/scripts/pylib/twister/twisterlib/testplan.py
@@ -106,7 +106,6 @@ def __init__(self, env=None):
         self.platforms = []
         self.platform_names = []
         self.selected_platforms = []
-        self.filtered_platforms = []
         self.default_platforms = []
         self.load_errors = 0
         self.instances = dict()
@@ -1079,9 +1078,6 @@ def apply_filters(self, **kwargs):
 
             filtered_instance.add_missing_case_status(filtered_instance.status)
 
-        self.filtered_platforms = set(p.platform.name for p in self.instances.values()
-                                      if p.status != TwisterStatus.SKIP )
-
     def add_instances(self, instance_list):
         for instance in instance_list:
             self.instances[instance.name] = instance
diff --git a/scripts/tests/twister_blackbox/test_platform.py b/scripts/tests/twister_blackbox/test_platform.py
index 43ff3346cf8af8..83fe07b274b9c2 100644
--- a/scripts/tests/twister_blackbox/test_platform.py
+++ b/scripts/tests/twister_blackbox/test_platform.py
@@ -38,7 +38,7 @@ class TestPlatform:
                 'errored_configurations': 0,
                 'executed_test_cases': 8,
                 'skipped_test_cases': 2,
-                'platform_count': 3,
+                'platform_count': 2,
                 'executed_on_platform': 4,
                 'only_built': 2
             }
@@ -59,7 +59,7 @@ class TestPlatform:
                 'errored_configurations': 0,
                 'executed_test_cases': 0,
                 'skipped_test_cases': 0,
-                'platform_count': 3,
+                'platform_count': 0,
                 'executed_on_platform': 0,
                 'only_built': 0
             }
diff --git a/scripts/tests/twister_blackbox/test_runner.py b/scripts/tests/twister_blackbox/test_runner.py
index 1ab50522c5ebf1..a4a253fbff7a80 100644
--- a/scripts/tests/twister_blackbox/test_runner.py
+++ b/scripts/tests/twister_blackbox/test_runner.py
@@ -56,7 +56,7 @@ class TestRunner:
                 'errored_configurations': 0,
                 'executed_test_cases': 8,
                 'skipped_test_cases': 0,
-                'platform_count': 0,
+                'platform_count': 2,
                 'executed_on_platform': 4,
                 'only_built': 0
             }