diff --git a/browser/ui/BUILD.gn b/browser/ui/BUILD.gn
index a97f2542633..cbcf37d08e7 100644
--- a/browser/ui/BUILD.gn
+++ b/browser/ui/BUILD.gn
@@ -149,7 +149,10 @@ source_set("ui") {
   }
 
   if (enable_brave_rewards) {
-    deps += [ "//brave/browser/brave_rewards" ]
+    deps += [
+      "//brave/browser/brave_rewards",
+      "//chrome/browser:flags",
+    ]
 
     sources += [
       "webui/brave_rewards/rewards_page_data_source.cc",
diff --git a/browser/ui/webui/brave_rewards_internals_ui.cc b/browser/ui/webui/brave_rewards_internals_ui.cc
index 3a66d55472e..361034edfae 100644
--- a/browser/ui/webui/brave_rewards_internals_ui.cc
+++ b/browser/ui/webui/brave_rewards_internals_ui.cc
@@ -13,6 +13,7 @@
 
 #include "base/check.h"
 #include "base/dcheck_is_on.h"
+#include "base/feature_list.h"
 #include "base/json/json_reader.h"
 #include "base/memory/raw_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ -21,13 +22,19 @@
 #include "brave/components/brave_ads/buildflags/buildflags.h"
 #include "brave/components/brave_ads/core/browser/service/ads_service.h"
 #include "brave/components/brave_rewards/content/rewards_service.h"
+#include "brave/components/brave_rewards/core/features.h"
 #include "brave/components/brave_rewards/core/mojom/rewards.mojom.h"
 #include "brave/components/brave_rewards/core/pref_names.h"
 #include "brave/components/brave_rewards/resources/grit/brave_rewards_resources.h"
 #include "brave/components/brave_rewards/resources/grit/rewards_internals_generated_map.h"
+#include "chrome/browser/about_flags.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile.h"
 #include "components/prefs/pref_service.h"
+#include "components/webui/flags/pref_service_flags_storage.h"
 #include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_data_source.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 #if BUILDFLAG(ENABLE_BRAVE_ADS)
@@ -77,6 +84,7 @@ class RewardsInternalsDOMHandler : public content::WebUIMessageHandler {
   void GetAdDiagnostics(const base::ListValue& args);
   void OnGetAdDiagnostics(std::optional<base::ListValue> diagnostics);
   void SetAdDiagnosticId(const base::ListValue& args);
+  void ToggleVerboseLoggingAndRestart(const base::ListValue& args);
   void GetEnvironment(const base::ListValue& args);
   void OnGetEnvironment(brave_rewards::mojom::Environment environment);
 
@@ -134,6 +142,11 @@ void RewardsInternalsDOMHandler::RegisterMessages() {
       "brave_rewards_internals.setAdDiagnosticId",
       base::BindRepeating(&RewardsInternalsDOMHandler::SetAdDiagnosticId,
                           base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "brave_rewards_internals.toggleVerboseLoggingAndRestart",
+      base::BindRepeating(
+          &RewardsInternalsDOMHandler::ToggleVerboseLoggingAndRestart,
+          base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "brave_rewards_internals.getEnvironment",
       base::BindRepeating(&RewardsInternalsDOMHandler::GetEnvironment,
@@ -455,6 +468,21 @@ void RewardsInternalsDOMHandler::SetAdDiagnosticId(
 #endif  // BUILDFLAG(ENABLE_BRAVE_ADS)
 }
 
+void RewardsInternalsDOMHandler::ToggleVerboseLoggingAndRestart(
+    const base::ListValue& args) {
+  std::string internal_name = "brave-rewards-verbose-logging";
+  if (base::FeatureList::IsEnabled(
+          brave_rewards::features::kVerboseLoggingFeature)) {
+    internal_name += "@0";  // The "Default" (disabled) option.
+  } else {
+    internal_name += "@1";  // The "Enabled" option.
+  }
+  flags_ui::PrefServiceFlagsStorage flags_storage(
+      g_browser_process->local_state());
+  about_flags::SetFeatureEntryEnabled(&flags_storage, internal_name, true);
+  chrome::AttemptRestart();
+}
+
 void RewardsInternalsDOMHandler::GetEnvironment(const base::ListValue& args) {
   if (!rewards_service_) {
     return;
@@ -482,8 +510,13 @@ void RewardsInternalsDOMHandler::OnGetEnvironment(
 BraveRewardsInternalsUI::BraveRewardsInternalsUI(content::WebUI* web_ui,
                                                  std::string_view name)
     : WebUIController(web_ui) {
-  CreateAndAddWebUIDataSource(web_ui, name, kRewardsInternalsGenerated,
-                              IDR_BRAVE_REWARDS_INTERNALS_HTML);
+  auto* source =
+      CreateAndAddWebUIDataSource(web_ui, name, kRewardsInternalsGenerated,
+                                  IDR_BRAVE_REWARDS_INTERNALS_HTML);
+
+  source->AddBoolean("verboseLoggingEnabled",
+                     base::FeatureList::IsEnabled(
+                         brave_rewards::features::kVerboseLoggingFeature));
 
   auto handler_owner = std::make_unique<RewardsInternalsDOMHandler>();
   RewardsInternalsDOMHandler* handler = handler_owner.get();
diff --git a/components/brave_rewards/resources/rewards_internals/components/rewards_log.style.ts b/components/brave_rewards/resources/rewards_internals/components/rewards_log.style.ts
index 714c1e47743..a7554410c0c 100644
--- a/components/brave_rewards/resources/rewards_internals/components/rewards_log.style.ts
+++ b/components/brave_rewards/resources/rewards_internals/components/rewards_log.style.ts
@@ -7,6 +7,10 @@ import { color, font } from '@brave/leo/tokens/css/variables'
 import { scoped } from '$web-common/scoped_css'
 
 export const style = scoped.css`
+  & {
+    --leo-dialog-padding: 32px;
+  }
+
   h4 {
     display: flex;
     align-items: center;
@@ -33,8 +37,22 @@ export const style = scoped.css`
     border: none;
   }
 
-  .auto-refresh {
-    padding: 0 16px;
+  leo-toggle {
     font: ${font.small.semibold};
+    margin-inline-end: 4px;
+  }
+
+  .verbose-logging-info {
+    --leo-icon-size: 48px;
+    --leo-icon-color: ${color.systemfeedback.warningIcon};
+
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+    background: ${color.systemfeedback.warningBackground};
+    padding: 24px;
+    border-radius: 8px;
+    border: solid 1px ${color.systemfeedback.warningVibrant};
+    color: ${color.systemfeedback.warningText};
   }
 `
diff --git a/components/brave_rewards/resources/rewards_internals/components/rewards_log.tsx b/components/brave_rewards/resources/rewards_internals/components/rewards_log.tsx
index aaf0bee0627..f80401f38f3 100644
--- a/components/brave_rewards/resources/rewards_internals/components/rewards_log.tsx
+++ b/components/brave_rewards/resources/rewards_internals/components/rewards_log.tsx
@@ -5,6 +5,8 @@
 
 import * as React from 'react'
 import Button from '@brave/leo/react/button'
+import Dialog from '@brave/leo/react/dialog'
+import Icon from '@brave/leo/react/icon'
 import Toggle from '@brave/leo/react/toggle'
 
 import { useAppState, useAppActions } from '../lib/app_context'
@@ -15,10 +17,14 @@ export function RewardsLog() {
   const actions = useAppActions()
   const { getString } = actions
   const log = useAppState((state) => state.rewardsLog)
+  const verboseLoggingEnabled = useAppState(
+    (state) => state.verboseLoggingEnabled,
+  )
 
   const textAreaRef = React.useRef<HTMLTextAreaElement>(null)
   const [logLoaded, setLogLoaded] = React.useState(log.length > 0)
   const [autoRefresh, setAutoRefresh] = React.useState(false)
+  const [showVerboseDialog, setShowVerboseDialog] = React.useState(false)
 
   React.useEffect(() => {
     actions.loadRewardsLog()
@@ -77,15 +83,20 @@ export function RewardsLog() {
     >
       <h4>
         <span className='title'>Rewards Log</span>
-        <span className='auto-refresh'>
-          <Toggle
-            size='small'
-            checked={autoRefresh}
-            onChange={() => setAutoRefresh(!autoRefresh)}
-          >
-            Auto-refresh
-          </Toggle>
-        </span>
+        <Toggle
+          size='small'
+          checked={autoRefresh}
+          onChange={() => setAutoRefresh(!autoRefresh)}
+        >
+          Auto-refresh
+        </Toggle>
+        <Toggle
+          size='small'
+          checked={verboseLoggingEnabled}
+          onChange={() => setShowVerboseDialog(true)}
+        >
+          Verbose mode
+        </Toggle>
         <Button
           size='small'
           onClick={download}
@@ -105,6 +116,42 @@ export function RewardsLog() {
         value={log}
         readOnly
       />
+
+      <Dialog
+        isOpen={showVerboseDialog}
+        onClose={() => setShowVerboseDialog(false)}
+        backdropClickCloses={false}
+      >
+        <div slot='title'>Brave Rewards Verbose Logging</div>
+        <div className='verbose-logging-info'>
+          <Icon name='warning-triangle-filled' />
+          <div>
+            Enables detailed logging of Brave Rewards system events to a log
+            file stored on your device. Please note that this log file could
+            include information such as browsing history and credentials such as
+            passwords and access tokens depending on your activity. Please do
+            not share it unless asked to by Brave staff.
+          </div>
+        </div>
+        <div slot='actions'>
+          <Button
+            kind='plain-faint'
+            onClick={() => setShowVerboseDialog(false)}
+          >
+            Cancel
+          </Button>
+          <Button
+            onClick={() => {
+              setShowVerboseDialog(false)
+              actions.toggleVerboseLoggingAndRestart()
+            }}
+          >
+            {verboseLoggingEnabled
+              ? 'Disable and Restart'
+              : 'Enable and Restart'}
+          </Button>
+        </div>
+      </Dialog>
     </div>
   )
 }
diff --git a/components/brave_rewards/resources/rewards_internals/lib/app_store.ts b/components/brave_rewards/resources/rewards_internals/lib/app_store.ts
index 84a6f65733b..238d5e748e1 100644
--- a/components/brave_rewards/resources/rewards_internals/lib/app_store.ts
+++ b/components/brave_rewards/resources/rewards_internals/lib/app_store.ts
@@ -18,6 +18,7 @@ export interface AppState {
   creationEnvironment: Environment | null
   contributions: ContributionInfo[]
   rewardsLog: string
+  verboseLoggingEnabled: boolean
   externalWallet: ExternalWallet | null
   externalWalletId: string
   externalWalletAccountId: string
@@ -30,6 +31,7 @@ export interface AppState {
     clearRewardsLog: () => void
     loadRewardsLog: () => void
     fetchFullRewardsLog: () => Promise<string>
+    toggleVerboseLoggingAndRestart: () => void
     loadContributions: () => void
     loadRewardsEvents: () => void
   }
@@ -88,6 +90,7 @@ export function defaultAppStore() {
     creationEnvironment: null,
     contributions: [],
     rewardsLog: '',
+    verboseLoggingEnabled: false,
     externalWallet: null,
     externalWalletId: '',
     externalWalletAccountId: '',
@@ -104,6 +107,7 @@ export function defaultAppStore() {
       async fetchFullRewardsLog() {
         return ''
       },
+      toggleVerboseLoggingAndRestart() {},
       loadContributions() {},
       loadRewardsEvents() {},
     },
diff --git a/components/brave_rewards/resources/rewards_internals/lib/browser_app_store.ts b/components/brave_rewards/resources/rewards_internals/lib/browser_app_store.ts
index cdac10c4c3d..365adb68bbe 100644
--- a/components/brave_rewards/resources/rewards_internals/lib/browser_app_store.ts
+++ b/components/brave_rewards/resources/rewards_internals/lib/browser_app_store.ts
@@ -192,6 +192,9 @@ export function createAppStore(): AppStore {
   })
 
   function loadData() {
+    store.update({
+      verboseLoggingEnabled: loadTimeData.getBoolean('verboseLoggingEnabled'),
+    })
     chrome.send('brave_rewards_internals.getRewardsInternalsInfo')
     chrome.send('brave_rewards_internals.getBalance')
     chrome.send('brave_rewards_internals.getExternalWallet')
@@ -228,6 +231,10 @@ export function createAppStore(): AppStore {
         })
       },
 
+      toggleVerboseLoggingAndRestart() {
+        chrome.send('brave_rewards_internals.toggleVerboseLoggingAndRestart')
+      },
+
       loadContributions() {
         chrome.send('brave_rewards_internals.getContributions')
       },
diff --git a/components/brave_rewards/resources/rewards_internals/lib/mock_app_store.ts b/components/brave_rewards/resources/rewards_internals/lib/mock_app_store.ts
index 91839be01a9..80ab5eb81de 100644
--- a/components/brave_rewards/resources/rewards_internals/lib/mock_app_store.ts
+++ b/components/brave_rewards/resources/rewards_internals/lib/mock_app_store.ts
@@ -75,6 +75,12 @@ export function createAppStore(): AppStore {
         return 'full log'
       },
 
+      toggleVerboseLoggingAndRestart() {
+        store.update((state) => ({
+          verboseLoggingEnabled: !state.verboseLoggingEnabled,
+        }))
+      },
+
       loadContributions() {
         store.update({
           contributions: [