diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5958602a..f5c947c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -71,6 +71,7 @@
 - Dev: Emoji style / set is now stored lowercase (and matched case-insensitively). Changing emoji style from this point on and then running an old version might mean you will use the Twitter emoji style by default. (#6300)
 - Dev: Refactored `OnceFlag`. (#6237, #6316)
 - Dev: Bumped clang-format requirement to 19. (#6236)
+- Dev: Factored out AUMID to `Version`. (#6321)
 
 ## 2.5.3
 
diff --git a/src/common/Version.cpp b/src/common/Version.cpp
index 5e23272c..21052dcb 100644
--- a/src/common/Version.cpp
+++ b/src/common/Version.cpp
@@ -36,6 +36,11 @@ Version::Version()
 
     this->generateBuildString();
     this->generateRunningString();
+
+#ifdef Q_OS_WIN
+    // keep in sync with .CI/chatterino-installer.iss
+    this->appUserModelID_ = L"ChatterinoTeam.Chatterino";
+#endif
 }
 
 const Version &Version::instance()
@@ -165,4 +170,11 @@ void Version::generateRunningString()
     this->runningString_ = s;
 }
 
+#ifdef Q_OS_WIN
+const std::wstring &Version::appUserModelID() const
+{
+    return this->appUserModelID_;
+}
+#endif
+
 }  // namespace chatterino
diff --git a/src/common/Version.hpp b/src/common/Version.hpp
index 6a43d8bc..a93b27f9 100644
--- a/src/common/Version.hpp
+++ b/src/common/Version.hpp
@@ -2,6 +2,10 @@
 
 #include <QString>
 
+#ifdef Q_OS_WIN
+#    include <string>
+#endif
+
 namespace chatterino {
 
 /**
@@ -52,6 +56,13 @@ public:
     // Returns a string about the current running system
     const QString &runningString() const;
 
+#ifdef Q_OS_WIN
+    /// Chatterino's App ID on Windows
+    ///
+    /// See https://learn.microsoft.com/en-us/windows/win32/shell/appids
+    const std::wstring &appUserModelID() const;
+#endif
+
 private:
     Version();
 
@@ -69,6 +80,10 @@ private:
     QString runningString_;
     // Generate a running string (e.g. Running on Arch Linux, kernel 5.14.3) and store it in runningString_ for future use
     void generateRunningString();
+
+#ifdef Q_OS_WIN
+    std::wstring appUserModelID_;
+#endif
 };
 
 };  // namespace chatterino
diff --git a/src/main.cpp b/src/main.cpp
index 697eb596..2cd96929 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -40,7 +40,8 @@ int main(int argc, char **argv)
     QCoreApplication::setApplicationVersion(CHATTERINO_VERSION);
     QCoreApplication::setOrganizationDomain("chatterino.com");
 #ifdef Q_OS_WIN
-    SetCurrentProcessExplicitAppUserModelID(L"ChatterinoTeam.Chatterino");
+    SetCurrentProcessExplicitAppUserModelID(
+        Version::instance().appUserModelID().c_str());
 #endif
 
     std::unique_ptr<Paths> paths;
diff --git a/src/singletons/Toasts.cpp b/src/singletons/Toasts.cpp
index 945bcee1..49065d41 100644
--- a/src/singletons/Toasts.cpp
+++ b/src/singletons/Toasts.cpp
@@ -285,8 +285,7 @@ void Toasts::ensureInitialized()
 
     auto *instance = WinToast::instance();
     instance->setAppName(L"Chatterino");
-    instance->setAppUserModelId(
-        WinToast::configureAUMI(L"ChatterinoTeam", L"Chatterino", L"", L""));
+    instance->setAppUserModelId(Version::instance().appUserModelID());
     if (!getSettings()->createShortcutForToasts)
     {
         instance->setShortcutPolicy(WinToast::SHORTCUT_POLICY_IGNORE);