diff --git a/aws/logs_monitoring_go/internal/handling/cloudwatch.go b/aws/logs_monitoring_go/internal/handling/cloudwatch.go
index d96804ed0..913eabe55 100644
--- a/aws/logs_monitoring_go/internal/handling/cloudwatch.go
+++ b/aws/logs_monitoring_go/internal/handling/cloudwatch.go
@@ -130,7 +130,7 @@ func (h CloudwatchHandler) newCloudwatchBaseEntry(data events.CloudwatchLogsData
 func (h CloudwatchHandler) newCloudwatchLogEntry(event events.CloudwatchLogsLogEvent, entry model.LogEntry) model.LogEntry {
 	tags, service, message := extractFromMessage(event.Message)
 	entry.Service = cmp.Or(h.cfg.Service, service, entry.Source)
-	entry.Tags = slices.Concat(tags, model.Tags{"service:" + entry.Service}, h.cfg.Tags)
+	entry.Tags = slices.Concat(tags, h.cfg.Tags)
 	entry.Message = message
 	entry.ID = event.ID
 	entry.Timestamp = event.Timestamp
diff --git a/aws/logs_monitoring_go/internal/handling/cloudwatch_test.go b/aws/logs_monitoring_go/internal/handling/cloudwatch_test.go
index 2480ce177..bb6c4c4ab 100644
--- a/aws/logs_monitoring_go/internal/handling/cloudwatch_test.go
+++ b/aws/logs_monitoring_go/internal/handling/cloudwatch_test.go
@@ -70,7 +70,6 @@ func TestCloudwatchHandler_Handle(t *testing.T) {
 					Source:         "lambda",
 					SourceCategory: "aws",
 					Service:        "lambda",
-					Tags:           model.Tags{"service:lambda"},
 					Host:           "/aws/lambda/testing-datadog",
 					ID:             "ev1",
 					Timestamp:      1583425836114,
@@ -101,7 +100,7 @@ func TestCloudwatchHandler_Handle(t *testing.T) {
 			want: []model.LogEntry{
 				{
 					Message: "first", Source: "lambda", SourceCategory: "aws",
-					Service: "lambda", Tags: model.Tags{"service:lambda"},
+					Service: "lambda",
 					Host: "/aws/lambda/fn", ID: "a1", Timestamp: 1000,
 					Metadata: model.CloudwatchMetadata{
 						LambdaOrigin: model.LambdaOrigin{ARN: "arn:aws:lambda:us-east-1:123456789012:function:forwarder"},
@@ -110,7 +109,7 @@ func TestCloudwatchHandler_Handle(t *testing.T) {
 				},
 				{
 					Message: "second", Source: "lambda", SourceCategory: "aws",
-					Service: "lambda", Tags: model.Tags{"service:lambda"},
+					Service: "lambda",
 					Host: "/aws/lambda/fn", ID: "a2", Timestamp: 2000,
 					Metadata: model.CloudwatchMetadata{
 						LambdaOrigin: model.LambdaOrigin{ARN: "arn:aws:lambda:us-east-1:123456789012:function:forwarder"},
@@ -140,7 +139,7 @@ func TestCloudwatchHandler_Handle(t *testing.T) {
 				{
 					Message: "hello", Source: "custom-source", SourceCategory: "aws",
 					Service: "custom-service",
-					Tags:    model.Tags{"service:custom-service", "env:prod", "team:infra"},
+					Tags:    model.Tags{"env:prod", "team:infra"},
 					Host:    "custom-host", ID: "ev1", Timestamp: 1000,
 					Metadata: model.CloudwatchMetadata{
 						LambdaOrigin: model.LambdaOrigin{ARN: "arn:aws:lambda:us-east-1:123456789012:function:forwarder"},
diff --git a/aws/logs_monitoring_go/internal/handling/s3.go b/aws/logs_monitoring_go/internal/handling/s3.go
index 9e0b91bd3..955d52774 100644
--- a/aws/logs_monitoring_go/internal/handling/s3.go
+++ b/aws/logs_monitoring_go/internal/handling/s3.go
@@ -111,7 +111,7 @@ func (h S3Handler) newS3LogEntry(record events.S3EventRecord, message string, la
 	entry.Metadata = metadata
 	entry.Source = cmp.Or(h.cfg.Source, S3Source(key))
 	entry.Service = cmp.Or(h.cfg.Service, service, entry.Source)
-	entry.Tags = slices.Concat(tags, model.Tags{"service:" + entry.Service}, h.cfg.Tags)
+	entry.Tags = slices.Concat(tags, h.cfg.Tags)
 	return entry
 }
 
diff --git a/aws/logs_monitoring_go/internal/handling/s3_test.go b/aws/logs_monitoring_go/internal/handling/s3_test.go
index 8a5a2f02b..cca3f9158 100644
--- a/aws/logs_monitoring_go/internal/handling/s3_test.go
+++ b/aws/logs_monitoring_go/internal/handling/s3_test.go
@@ -47,7 +47,7 @@ func TestProcessS3Record(t *testing.T) {
 			},
 			cfg:      testutil.EmptyConfig(),
 			chanSize: 1,
-			want:     []model.LogEntry{wantS3Entry("line1", "s3", "s3", model.Tags{"service:s3"})},
+			want:     []model.LogEntry{wantS3Entry("line1", "s3", "s3", nil)},
 		},
 		"multiple lines": {
 			mockSetup: func(m *MockS3APIClient) {
@@ -59,9 +59,9 @@ func TestProcessS3Record(t *testing.T) {
 			cfg:      testutil.EmptyConfig(),
 			chanSize: 3,
 			want: []model.LogEntry{
-				wantS3Entry("line1", "s3", "s3", model.Tags{"service:s3"}),
-				wantS3Entry("line2", "s3", "s3", model.Tags{"service:s3"}),
-				wantS3Entry("line3", "s3", "s3", model.Tags{"service:s3"}),
+				wantS3Entry("line1", "s3", "s3", nil),
+				wantS3Entry("line2", "s3", "s3", nil),
+				wantS3Entry("line3", "s3", "s3", nil),
 			},
 		},
 		"empty file": {
@@ -91,7 +91,7 @@ func TestProcessS3Record(t *testing.T) {
 			},
 			cfg:      testutil.EmptyConfig(),
 			chanSize: 1,
-			want:     []model.LogEntry{wantS3Entry(`{"msg":"hello"}`, "s3", "myapp", model.Tags{"env:prod", "service:myapp"})},
+			want:     []model.LogEntry{wantS3Entry(`{"msg":"hello"}`, "s3", "myapp", model.Tags{"env:prod"})},
 		},
 		"invalid utf8 stripped": {
 			mockSetup: func(m *MockS3APIClient) {
@@ -102,7 +102,7 @@ func TestProcessS3Record(t *testing.T) {
 			},
 			cfg:      testutil.EmptyConfig(),
 			chanSize: 1,
-			want:     []model.LogEntry{wantS3Entry("helloworld", "s3", "s3", model.Tags{"service:s3"})},
+			want:     []model.LogEntry{wantS3Entry("helloworld", "s3", "s3", nil)},
 		},
 		"multiline groups continuation lines": {
 			mockSetup: func(m *MockS3APIClient) {
@@ -114,8 +114,8 @@ func TestProcessS3Record(t *testing.T) {
 			cfg:      &config.Config{S3MultilineLogRegex: regexp.MustCompile(`\d{4}-\d{2}-\d{2}`)},
 			chanSize: 2,
 			want: []model.LogEntry{
-				wantS3Entry("2024-01-15 ERROR NullPointer\n    at com.foo.Bar\n", "s3", "s3", model.Tags{"service:s3"}),
-				wantS3Entry("2024-01-15 INFO started", "s3", "s3", model.Tags{"service:s3"}),
+				wantS3Entry("2024-01-15 ERROR NullPointer\n    at com.foo.Bar\n", "s3", "s3", nil),
+				wantS3Entry("2024-01-15 INFO started", "s3", "s3", nil),
 			},
 		},
 		"multiline flushes at eof": {
@@ -127,7 +127,7 @@ func TestProcessS3Record(t *testing.T) {
 			},
 			cfg:      &config.Config{S3MultilineLogRegex: regexp.MustCompile(`\d{4}-\d{2}-\d{2}`)},
 			chanSize: 1,
-			want:     []model.LogEntry{wantS3Entry("2024-01-15 ERROR\n    stacktrace", "s3", "s3", model.Tags{"service:s3"})},
+			want:     []model.LogEntry{wantS3Entry("2024-01-15 ERROR\n    stacktrace", "s3", "s3", nil)},
 		},
 		"custom tags passed through": {
 			mockSetup: func(m *MockS3APIClient) {
@@ -138,7 +138,7 @@ func TestProcessS3Record(t *testing.T) {
 			},
 			cfg:      &config.Config{Tags: model.Tags{"env:prod", "team:aws"}},
 			chanSize: 1,
-			want:     []model.LogEntry{wantS3Entry("line1", "s3", "s3", model.Tags{"service:s3", "env:prod", "team:aws"})},
+			want:     []model.LogEntry{wantS3Entry("line1", "s3", "s3", model.Tags{"env:prod", "team:aws"})},
 		},
 	}