diff --git a/browser/brave_origin/BUILD.gn b/browser/brave_origin/BUILD.gn
index fb67871504e..1b2391da319 100644
--- a/browser/brave_origin/BUILD.gn
+++ b/browser/brave_origin/BUILD.gn
@@ -97,7 +97,10 @@ source_set("brave_origin") {
   }
 
   if (enable_email_aliases) {
-    deps += [ "//brave/components/email_aliases:service" ]
+    deps += [
+      "//brave/components/email_aliases:pref_names",
+      "//brave/components/email_aliases:service",
+    ]
   }
 }
 
diff --git a/browser/email_aliases/BUILD.gn b/browser/email_aliases/BUILD.gn
index 51beff2255f..3b78312e0b5 100644
--- a/browser/email_aliases/BUILD.gn
+++ b/browser/email_aliases/BUILD.gn
@@ -43,6 +43,7 @@ source_set("unit_tests") {
     "//brave/components/brave_account",
     "//brave/components/brave_account:features",
     "//brave/components/email_aliases:features",
+    "//brave/components/email_aliases:pref_names",
     "//brave/components/email_aliases:service",
     "//chrome/browser/profiles",
     "//chrome/test:test_support",
diff --git a/browser/email_aliases/email_aliases_service_factory.cc b/browser/email_aliases/email_aliases_service_factory.cc
index abe515dd482..14e7f281970 100644
--- a/browser/email_aliases/email_aliases_service_factory.cc
+++ b/browser/email_aliases/email_aliases_service_factory.cc
@@ -11,7 +11,6 @@
 #include "brave/components/brave_account/brave_account_service.h"
 #include "brave/components/email_aliases/email_aliases_service.h"
 #include "brave/components/email_aliases/features.h"
-#include "brave/components/email_aliases/pref_names.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_selections.h"
 #include "components/pref_registry/pref_registry_syncable.h"
@@ -61,11 +60,9 @@ void EmailAliasesServiceFactory::RegisterProfilePrefs(
 std::unique_ptr<KeyedService>
 EmailAliasesServiceFactory::BuildServiceInstanceForBrowserContext(
     content::BrowserContext* context) const {
-  if (!features::IsEmailAliasesEnabled()) {
-    return nullptr;
-  }
   PrefService* pref_service = user_prefs::UserPrefs::Get(context);
-  if (!pref_service || !pref_service->GetBoolean(prefs::kEmailAliasesEnabled)) {
+  if (!pref_service ||
+      !features::IsEmailAliasesEnabledForProfile(*pref_service)) {
     return nullptr;
   }
 
diff --git a/browser/policy/BUILD.gn b/browser/policy/BUILD.gn
index a80b8f41a1a..0e295647c39 100644
--- a/browser/policy/BUILD.gn
+++ b/browser/policy/BUILD.gn
@@ -86,6 +86,9 @@ source_set("brave_simple_policy_map") {
   }
 
   if (enable_email_aliases) {
-    deps += [ "//brave/components/email_aliases:service" ]
+    deps += [
+      "//brave/components/email_aliases:pref_names",
+      "//brave/components/email_aliases:service",
+    ]
   }
 }
diff --git a/browser/sources.gni b/browser/sources.gni
index 2080980d18e..35a268b06de 100644
--- a/browser/sources.gni
+++ b/browser/sources.gni
@@ -362,6 +362,7 @@ if (enable_email_aliases) {
     "//brave/browser/ui/webui/email_aliases",
     "//brave/components/email_aliases:features",
     "//brave/components/email_aliases:mojom",
+    "//brave/components/email_aliases:pref_names",
     "//brave/components/email_aliases:service",
   ]
 }
diff --git a/browser/ui/brave_browser_command_controller.cc b/browser/ui/brave_browser_command_controller.cc
index e5c65c8f86e..b53c7aa6197 100644
--- a/browser/ui/brave_browser_command_controller.cc
+++ b/browser/ui/brave_browser_command_controller.cc
@@ -8,6 +8,7 @@
 #include <optional>
 
 #include "base/check.h"
+#include "base/check_deref.h"
 #include "base/check_is_test.h"
 #include "base/containers/fixed_flat_set.h"
 #include "base/feature_list.h"
@@ -96,7 +97,6 @@
 #endif
 
 #if BUILDFLAG(ENABLE_EMAIL_ALIASES)
-#include "brave/browser/email_aliases/email_aliases_service_factory.h"
 #include "brave/browser/ui/email_aliases/email_aliases_controller.h"
 #include "brave/components/email_aliases/features.h"
 #endif
@@ -351,11 +351,9 @@ void BraveBrowserCommandController::InitBraveCommandState() {
   UpdateCommandEnabled(IDC_EXPORT_ALL_BOOKMARKS, true);
 
 #if BUILDFLAG(ENABLE_EMAIL_ALIASES)
-  UpdateCommandEnabled(
-      IDC_SHOW_EMAIL_ALIASES,
-      email_aliases::features::IsEmailAliasesEnabled() &&
-          email_aliases::EmailAliasesServiceFactory::GetServiceForProfile(
-              browser_->profile()));
+  UpdateCommandEnabled(IDC_SHOW_EMAIL_ALIASES,
+                       email_aliases::features::IsEmailAliasesEnabledForProfile(
+                           CHECK_DEREF(browser_->profile()->GetPrefs())));
 #endif
 
   if (browser_->is_type_normal()) {
diff --git a/browser/ui/browser_window/internal/browser_window_features.cc b/browser/ui/browser_window/internal/browser_window_features.cc
index df42c00cfbc..497dff1e92b 100644
--- a/browser/ui/browser_window/internal/browser_window_features.cc
+++ b/browser/ui/browser_window/internal/browser_window_features.cc
@@ -5,6 +5,7 @@
 
 #include "chrome/browser/ui/browser_window/public/browser_window_features.h"
 
+#include "base/check_deref.h"
 #include "base/memory/ptr_util.h"
 #include "base/notreached.h"
 #include "brave/browser/ui/brave_browser_window.h"
@@ -114,14 +115,14 @@ void BrowserWindowFeatures::InitPostBrowserViewConstruction(
   }
 
 #if BUILDFLAG(ENABLE_EMAIL_ALIASES)
-  if (email_aliases::features::IsEmailAliasesEnabled()) {
-    if (auto* email_aliases_service =
-            email_aliases::EmailAliasesServiceFactory::GetServiceForProfile(
-                browser_view->GetProfile())) {
-      email_aliases_controller_ =
-          std::make_unique<email_aliases::EmailAliasesController>(
-              browser_view, email_aliases_service);
-    }
+  if (email_aliases::features::IsEmailAliasesEnabledForProfile(
+          CHECK_DEREF(browser_view->GetProfile()->GetPrefs()))) {
+    email_aliases_controller_ =
+        std::make_unique<email_aliases::EmailAliasesController>(
+            browser_view,
+            &CHECK_DEREF(
+                email_aliases::EmailAliasesServiceFactory::GetServiceForProfile(
+                    browser_view->GetProfile())));
   }
 #endif
 
diff --git a/browser/ui/webui/brave_settings_ui.cc b/browser/ui/webui/brave_settings_ui.cc
index 61a1ecf8c0c..3558efef080 100644
--- a/browser/ui/webui/brave_settings_ui.cc
+++ b/browser/ui/webui/brave_settings_ui.cc
@@ -292,17 +292,18 @@ void BraveSettingsUI::AddResources(content::WebUIDataSource* html_source,
 #if BUILDFLAG(ENABLE_EMAIL_ALIASES)
   html_source->AddBoolean(
       "isEmailAliasesEnabled",
-      email_aliases::features::IsEmailAliasesEnabled() &&
-          email_aliases::EmailAliasesServiceFactory::GetServiceForProfile(
-              profile));
+      email_aliases::features::IsEmailAliasesEnabledForProfile(
+          CHECK_DEREF(profile->GetPrefs())));
 #endif
 #if BUILDFLAG(ENABLE_CONTAINERS)
   html_source->AddBoolean(
       "isContainersEnabled",
       base::FeatureList::IsEnabled(containers::features::kContainers));
 #endif
-  html_source->AddBoolean("isBraveAccountEnabled",
-                          brave_account::features::IsBraveAccountEnabled());
+  html_source->AddBoolean(
+      "isBraveAccountEnabled",
+      brave_account::features::IsBraveAccountEnabledForProfile(
+          CHECK_DEREF(profile->GetPrefs())));
   html_source->AddBoolean("isBraveOriginBrandedBuild",
                           BUILDFLAG(IS_BRAVE_ORIGIN_BRANDED));
   html_source->AddBoolean("isBraveOriginPurchased",
diff --git a/components/brave_account/features.cc b/components/brave_account/features.cc
index fea0e90d82f..91537a44f2c 100644
--- a/components/brave_account/features.cc
+++ b/components/brave_account/features.cc
@@ -17,9 +17,9 @@ namespace {
 BASE_FEATURE(kBraveAccount, base::FEATURE_DISABLED_BY_DEFAULT);
 }  // namespace
 
-// Brave Account is enabled when:
-// - the explicit kBraveAccount feature flag is enabled (dev/testing), OR
-// - a dependent feature (e.g. Email Aliases) requires it
+// Process-wide: true if kBraveAccount is on, or a dependent feature (e.g.
+// Email Aliases) is built and feature-flagged on. Use when per-profile state
+// shouldn't or can't influence the answer.
 bool IsBraveAccountEnabled() {
   return base::FeatureList::IsEnabled(kBraveAccount)
 #if BUILDFLAG(ENABLE_EMAIL_ALIASES)
@@ -28,6 +28,19 @@ bool IsBraveAccountEnabled() {
       ;
 }
 
+// Per-profile: "is Brave Account active for this profile?".
+// Use for UI gating and other per-profile decisions. The result can differ
+// across profiles because dependent features (Email Aliases) consult a
+// per-profile pref.
+bool IsBraveAccountEnabledForProfile(const PrefService& pref_service) {
+  return base::FeatureList::IsEnabled(kBraveAccount)
+#if BUILDFLAG(ENABLE_EMAIL_ALIASES)
+         ||
+         email_aliases::features::IsEmailAliasesEnabledForProfile(pref_service)
+#endif
+      ;
+}
+
 const base::Feature& BraveAccountFeatureForTesting() {
   return kBraveAccount;
 }
diff --git a/components/brave_account/features.h b/components/brave_account/features.h
index 0109010f0d0..e7debcc07ab 100644
--- a/components/brave_account/features.h
+++ b/components/brave_account/features.h
@@ -8,9 +8,12 @@
 
 #include "base/feature_list.h"
 
+class PrefService;
+
 namespace brave_account::features {
 
 bool IsBraveAccountEnabled();
+bool IsBraveAccountEnabledForProfile(const PrefService& pref_service);
 
 const base::Feature& BraveAccountFeatureForTesting();
 
diff --git a/components/email_aliases/BUILD.gn b/components/email_aliases/BUILD.gn
index ecd3441fa50..f995459a29e 100644
--- a/components/email_aliases/BUILD.gn
+++ b/components/email_aliases/BUILD.gn
@@ -27,12 +27,21 @@ generated_types("email_aliases_api_types") {
   root_namespace = "email_aliases"
 }
 
+source_set("pref_names") {
+  sources = [ "pref_names.h" ]
+}
+
 static_library("features") {
   sources = [
     "features.cc",
     "features.h",
   ]
 
+  deps = [
+    ":pref_names",
+    "//components/prefs",
+  ]
+
   public_deps = [ "//base" ]
 }
 
@@ -45,11 +54,11 @@ static_library("service") {
     "email_aliases_notes.h",
     "email_aliases_service.cc",
     "email_aliases_service.h",
-    "pref_names.h",
   ]
   deps = [
     ":email_aliases_api_types",
     ":mojom",
+    ":pref_names",
     "//base",
     "//brave/brave_domains",
     "//brave/components/brave_account",
@@ -97,6 +106,7 @@ source_set("unit_tests") {
   ]
   deps = [
     ":features",
+    ":pref_names",
     ":service",
     ":test_utils",
     "//base/test:test_support",
diff --git a/components/email_aliases/features.cc b/components/email_aliases/features.cc
index aa81e34ba40..cda1febb3ea 100644
--- a/components/email_aliases/features.cc
+++ b/components/email_aliases/features.cc
@@ -5,6 +5,9 @@
 
 #include "brave/components/email_aliases/features.h"
 
+#include "brave/components/email_aliases/pref_names.h"
+#include "components/prefs/pref_service.h"
+
 namespace email_aliases::features {
 
 BASE_FEATURE(kEmailAliases, base::FEATURE_DISABLED_BY_DEFAULT);
@@ -13,4 +16,9 @@ bool IsEmailAliasesEnabled() {
   return base::FeatureList::IsEnabled(kEmailAliases);
 }
 
+bool IsEmailAliasesEnabledForProfile(const PrefService& pref_service) {
+  return IsEmailAliasesEnabled() &&
+         pref_service.GetBoolean(prefs::kEmailAliasesEnabled);
+}
+
 }  // namespace email_aliases::features
diff --git a/components/email_aliases/features.h b/components/email_aliases/features.h
index 7a09ea4fd6d..bffa886870f 100644
--- a/components/email_aliases/features.h
+++ b/components/email_aliases/features.h
@@ -8,11 +8,14 @@
 
 #include "base/feature_list.h"
 
+class PrefService;
+
 namespace email_aliases::features {
 
 BASE_DECLARE_FEATURE(kEmailAliases);
 
 bool IsEmailAliasesEnabled();
+bool IsEmailAliasesEnabledForProfile(const PrefService& pref_service);
 
 }  // namespace email_aliases::features
 
diff --git a/ios/browser/brave_origin/BUILD.gn b/ios/browser/brave_origin/BUILD.gn
index 5d55b5faf9c..0d51780d470 100644
--- a/ios/browser/brave_origin/BUILD.gn
+++ b/ios/browser/brave_origin/BUILD.gn
@@ -61,6 +61,9 @@ source_set("brave_origin") {
     deps += [ "//brave/components/brave_news/common" ]
   }
   if (enable_email_aliases) {
-    deps += [ "//brave/components/email_aliases:service" ]
+    deps += [
+      "//brave/components/email_aliases:pref_names",
+      "//brave/components/email_aliases:service",
+    ]
   }
 }
diff --git a/ios/browser/policy/BUILD.gn b/ios/browser/policy/BUILD.gn
index bd6938747d4..ca09525c5cd 100644
--- a/ios/browser/policy/BUILD.gn
+++ b/ios/browser/policy/BUILD.gn
@@ -36,6 +36,9 @@ source_set("policy") {
     deps += [ "//brave/components/brave_talk" ]
   }
   if (enable_email_aliases) {
-    deps += [ "//brave/components/email_aliases:service" ]
+    deps += [
+      "//brave/components/email_aliases:pref_names",
+      "//brave/components/email_aliases:service",
+    ]
   }
 }