diff --git a/.chloggen/fix_tailsampling-metric-incorrect-count.yaml b/.chloggen/fix_tailsampling-metric-incorrect-count.yaml
new file mode 100755
index 000000000000..0acd74ef23d1
--- /dev/null
+++ b/.chloggen/fix_tailsampling-metric-incorrect-count.yaml
@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'breaking'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: bug_fix
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Improve counting for the `count_traces_sampled` metric
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [25882]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]
diff --git a/processor/tailsamplingprocessor/metrics.go b/processor/tailsamplingprocessor/metrics.go
index f590b844e3d6..8b145e284347 100644
--- a/processor/tailsamplingprocessor/metrics.go
+++ b/processor/tailsamplingprocessor/metrics.go
@@ -27,7 +27,8 @@ var (
 
 	statPolicyEvaluationErrorCount = stats.Int64("sampling_policy_evaluation_error", "Count of sampling policy evaluation errors", stats.UnitDimensionless)
 
-	statCountTracesSampled = stats.Int64("count_traces_sampled", "Count of traces that were sampled or not", stats.UnitDimensionless)
+	statCountTracesSampled       = stats.Int64("count_traces_sampled", "Count of traces that were sampled or not per sampling policy", stats.UnitDimensionless)
+	statCountGlobalTracesSampled = stats.Int64("global_count_traces_sampled", "Global count of traces that were sampled or not by at least one policy", stats.UnitDimensionless)
 
 	statDroppedTooEarlyCount    = stats.Int64("sampling_trace_dropped_too_early", "Count of traces that needed to be dropped the configured wait time", stats.UnitDimensionless)
 	statNewTraceIDReceivedCount = stats.Int64("new_trace_id_received", "Counts the arrival of new traces", stats.UnitDimensionless)
@@ -88,6 +89,14 @@ func samplingProcessorMetricViews(level configtelemetry.Level) []*view.View {
 		Aggregation: view.Sum(),
 	}
 
+	countGlobalTracesSampledView := &view.View{
+		Name:        obsreport.BuildProcessorCustomMetricName(metadata.Type, statCountGlobalTracesSampled.Name()),
+		Measure:     statCountGlobalTracesSampled,
+		Description: statCountGlobalTracesSampled.Description(),
+		TagKeys:     []tag.Key{tagSampledKey},
+		Aggregation: view.Sum(),
+	}
+
 	countTraceDroppedTooEarlyView := &view.View{
 		Name:        processorhelper.BuildCustomMetricName(metadata.Type, statDroppedTooEarlyCount.Name()),
 		Measure:     statDroppedTooEarlyCount,
@@ -117,6 +126,7 @@ func samplingProcessorMetricViews(level configtelemetry.Level) []*view.View {
 		countPolicyEvaluationErrorView,
 
 		countTracesSampledView,
+		countGlobalTracesSampledView,
 
 		countTraceDroppedTooEarlyView,
 		countTraceIDArrivalView,
diff --git a/processor/tailsamplingprocessor/processor.go b/processor/tailsamplingprocessor/processor.go
index 1136160caa7b..92218b743194 100644
--- a/processor/tailsamplingprocessor/processor.go
+++ b/processor/tailsamplingprocessor/processor.go
@@ -279,8 +279,8 @@ func (tsp *tailSamplingSpanProcessor) makeDecision(id pcommon.TraceID, trace *sa
 		finalDecision = sampling.Sampled
 	}
 
-	for _, p := range tsp.policies {
-		switch finalDecision {
+	for i, p := range tsp.policies {
+		switch trace.Decisions[i] {
 		case sampling.Sampled:
 			// any single policy that decides to sample will cause the decision to be sampled
 			// the nextConsumer will get the context from the first matching policy
@@ -305,6 +305,21 @@ func (tsp *tailSamplingSpanProcessor) makeDecision(id pcommon.TraceID, trace *sa
 		}
 	}
 
+	switch finalDecision {
+	case sampling.Sampled:
+		_ = stats.RecordWithTags(
+			tsp.ctx,
+			[]tag.Mutator{tag.Upsert(tagSampledKey, "true")},
+			statCountGlobalTracesSampled.M(int64(1)),
+		)
+	case sampling.NotSampled:
+		_ = stats.RecordWithTags(
+			tsp.ctx,
+			[]tag.Mutator{tag.Upsert(tagSampledKey, "false")},
+			statCountGlobalTracesSampled.M(int64(1)),
+		)
+	}
+
 	return finalDecision, matchingPolicy
 }