diff --git a/app/brave_generated_resources.grd b/app/brave_generated_resources.grd
index d5416f7954a9..41df2f128f3e 100644
--- a/app/brave_generated_resources.grd
+++ b/app/brave_generated_resources.grd
@@ -640,9 +640,6 @@ Or change later at <ph name="SETTINGS_EXTENIONS_LINK">$2<ex>brave://settings/ext
       </if>
 
       <!-- Brave Ads -->
-      <message name="IDS_SERVICE_BAT_ADS" desc="The bat ads utility process">
-        Bat Ads Service
-      </message>
       <message name="IDS_UTILITY_PROCESS_REWARDS_NAME" desc="The utility process running rewards">
         Bat Rewards Service
       </message>
diff --git a/browser/about_flags.cc b/browser/about_flags.cc
index 5d4f0f94d60c..3467c11bd9dc 100644
--- a/browser/about_flags.cc
+++ b/browser/about_flags.cc
@@ -761,15 +761,6 @@
           FEATURE_VALUE_TYPE(                                                  \
               brave_rewards::features::kPlatformCreatorDetectionFeature),      \
       },                                                                       \
-      {                                                                        \
-          "brave-ads-should-launch-brave-ads-as-an-in-process-service",        \
-          "Launch Brave Ads as an in-process service",                         \
-          "Launch Brave Ads as an in-process service removing the utility "    \
-          "process.",                                                          \
-          kOsAll,                                                              \
-          FEATURE_VALUE_TYPE(                                                  \
-              brave_ads::kShouldLaunchBraveAdsAsAnInProcessServiceFeature),    \
-      },                                                                       \
       {                                                                        \
           "brave-ads-should-always-run-brave-ads-service",                     \
           "Should always run Brave Ads service",                               \
diff --git a/browser/brave_ads/services/bat_ads_service_factory_impl.cc b/browser/brave_ads/services/bat_ads_service_factory_impl.cc
index 040c64b4c433..785b1d893925 100644
--- a/browser/brave_ads/services/bat_ads_service_factory_impl.cc
+++ b/browser/brave_ads/services/bat_ads_service_factory_impl.cc
@@ -13,11 +13,8 @@
 #include "base/task/single_thread_task_runner_thread_mode.h"
 #include "base/task/thread_pool.h"
 #include "brave/browser/brave_ads/services/service_sandbox_type.h"
-#include "brave/components/brave_ads/core/public/ads_feature.h"
 #include "brave/components/services/bat_ads/bat_ads_service_impl.h"
-#include "brave/grit/brave_generated_resources.h"
 #include "content/public/browser/browser_thread.h"
-#include "content/public/browser/service_process_host.h"
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/self_owned_receiver.h"
 
@@ -46,14 +43,6 @@ mojo::Remote<bat_ads::mojom::BatAdsService> LaunchInProcessBatAdsService() {
   return bat_ads_service_remote;
 }
 
-// Launches a new Bat Ads Service utility process.
-mojo::Remote<bat_ads::mojom::BatAdsService> LaunchOutOfProcessBatAdsService() {
-  return content::ServiceProcessHost::Launch<bat_ads::mojom::BatAdsService>(
-      content::ServiceProcessHost::Options()
-          .WithDisplayName(IDS_SERVICE_BAT_ADS)
-          .Pass());
-}
-
 }  // namespace
 
 BatAdsServiceFactoryImpl::BatAdsServiceFactoryImpl() = default;
@@ -64,8 +53,7 @@ mojo::Remote<bat_ads::mojom::BatAdsService> BatAdsServiceFactoryImpl::Launch()
     const {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
-  return ShouldLaunchAsInProcessService() ? LaunchInProcessBatAdsService()
-                                          : LaunchOutOfProcessBatAdsService();
+  return LaunchInProcessBatAdsService();
 }
 
 }  // namespace brave_ads
diff --git a/components/brave_ads/core/internal/ads_feature.cc b/components/brave_ads/core/internal/ads_feature.cc
index 5310af7f9811..d02300bf8d29 100644
--- a/components/brave_ads/core/internal/ads_feature.cc
+++ b/components/brave_ads/core/internal/ads_feature.cc
@@ -7,15 +7,6 @@
 
 namespace brave_ads {
 
-BASE_FEATURE(kShouldLaunchBraveAdsAsAnInProcessServiceFeature,
-             "ShouldLaunchBraveAdsAsInProcessService",
-             base::FEATURE_ENABLED_BY_DEFAULT);
-
-bool ShouldLaunchAsInProcessService() {
-  return base::FeatureList::IsEnabled(
-      kShouldLaunchBraveAdsAsAnInProcessServiceFeature);
-}
-
 BASE_FEATURE(kShouldAlwaysRunBraveAdsServiceFeature,
              "ShouldAlwaysRunBraveAdsService",
              base::FEATURE_DISABLED_BY_DEFAULT);
diff --git a/components/brave_ads/core/internal/ads_feature_unittest.cc b/components/brave_ads/core/internal/ads_feature_unittest.cc
index 6394474b9110..2f8e9999c170 100644
--- a/components/brave_ads/core/internal/ads_feature_unittest.cc
+++ b/components/brave_ads/core/internal/ads_feature_unittest.cc
@@ -12,21 +12,6 @@
 
 namespace brave_ads {
 
-TEST(BraveAdsBraveAdsFeatureTest, ShouldLaunchAsInProcessService) {
-  // Act & Assert
-  EXPECT_TRUE(ShouldLaunchAsInProcessService());
-}
-
-TEST(BraveAdsBraveAdsFeatureTest, ShouldNotLaunchAsInProcessService) {
-  // Arrange
-  base::test::ScopedFeatureList scoped_feature_list;
-  scoped_feature_list.InitAndDisableFeature(
-      kShouldLaunchBraveAdsAsAnInProcessServiceFeature);
-
-  // Act & Assert
-  EXPECT_FALSE(ShouldLaunchAsInProcessService());
-}
-
 TEST(BraveAdsBraveAdsFeatureTest, ShouldAlwaysRunService) {
   // Arrange
   const base::test::ScopedFeatureList scoped_feature_list(
diff --git a/components/brave_ads/core/public/ads_feature.h b/components/brave_ads/core/public/ads_feature.h
index 2d894c8cf6f9..71f9142d1be9 100644
--- a/components/brave_ads/core/public/ads_feature.h
+++ b/components/brave_ads/core/public/ads_feature.h
@@ -10,11 +10,6 @@
 
 namespace brave_ads {
 
-// Set to `true` to launch as an in process service.
-BASE_DECLARE_FEATURE(kShouldLaunchBraveAdsAsAnInProcessServiceFeature);
-
-bool ShouldLaunchAsInProcessService();
-
 // Set to `true` to always run the ads service, even if Brave Private Ads are
 // disabled.
 BASE_DECLARE_FEATURE(kShouldAlwaysRunBraveAdsServiceFeature);