diff --git a/components/brave_ads/browser/BUILD.gn b/components/brave_ads/browser/BUILD.gn
index b263bd3f6ab..a4680c2edcb 100644
--- a/components/brave_ads/browser/BUILD.gn
+++ b/components/brave_ads/browser/BUILD.gn
@@ -144,6 +144,7 @@ source_set("unit_tests") {
     "//brave/components/brave_ads/core/public:headers",
     "//brave/components/brave_component_updater/browser",
     "//brave/components/brave_rewards/core",
+    "//brave/components/brave_rewards/core:features",
     "//brave/components/brave_rewards/core/buildflags",
     "//brave/components/ntp_background_images/common",
     "//components/content_settings/core/browser",
diff --git a/components/brave_ads/browser/ads_service_impl_unittest.cc b/components/brave_ads/browser/ads_service_impl_unittest.cc
index a7d8db8b21a..d1bee435436 100644
--- a/components/brave_ads/browser/ads_service_impl_unittest.cc
+++ b/components/brave_ads/browser/ads_service_impl_unittest.cc
@@ -11,6 +11,7 @@
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/raw_ptr.h"
 #include "base/test/run_until.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/test/task_environment.h"
 #include "base/values.h"
 #include "brave/components/brave_ads/browser/test/fake_ads_service_delegate.h"
@@ -21,6 +22,7 @@
 #include "brave/components/brave_ads/core/public/prefs/pref_names.h"
 #include "brave/components/brave_ads/core/public/prefs/pref_registry.h"
 #include "brave/components/brave_rewards/core/buildflags/buildflags.h"
+#include "brave/components/brave_rewards/core/features.h"
 #include "brave/components/brave_rewards/core/pref_names.h"
 #include "brave/components/brave_rewards/core/pref_registry.h"
 #include "brave/components/ntp_background_images/common/pref_names.h"
@@ -41,6 +43,16 @@ namespace brave_ads {
 class BraveAdsAdsServiceImplTest : public testing::Test {
  public:
   void SetUp() override {
+#if BUILDFLAG(IS_ANDROID)
+    // `brave_rewards::features::kBraveRewards` is `DISABLED_BY_DEFAULT` on
+    // `is_official_build=true` x86/x86_64 Android, which routes
+    // `brave_rewards::IsSupported` through `IsDisabledByFeature` and prevents
+    // the service from starting. Force-enable so Android matches the
+    // non-Android path these tests were written against.
+    scoped_feature_list_.InitAndEnableFeature(
+        brave_rewards::features::kBraveRewards);
+#endif  // BUILDFLAG(IS_ANDROID)
+
     ASSERT_TRUE(profile_dir_.CreateUniqueTempDir());
 
     RegisterProfilePrefs(prefs_.registry());
@@ -95,6 +107,10 @@ class BraveAdsAdsServiceImplTest : public testing::Test {
 
   void Shutdown() { ads_service_->Shutdown(); }
 
+#if BUILDFLAG(IS_ANDROID)
+  base::test::ScopedFeatureList scoped_feature_list_;
+#endif  // BUILDFLAG(IS_ANDROID)
+
   base::test::TaskEnvironment task_environment_;
 
   base::ScopedTempDir profile_dir_;