diff --git a/apps/settings/composer/composer/autoload_classmap.php b/apps/settings/composer/composer/autoload_classmap.php
index 599e601e7fa75..c2a883f706b83 100644
--- a/apps/settings/composer/composer/autoload_classmap.php
+++ b/apps/settings/composer/composer/autoload_classmap.php
@@ -103,6 +103,7 @@
     'OCA\\Settings\\SetupChecks\\PhpDisabledFunctions' => $baseDir . '/../lib/SetupChecks/PhpDisabledFunctions.php',
     'OCA\\Settings\\SetupChecks\\PhpFreetypeSupport' => $baseDir . '/../lib/SetupChecks/PhpFreetypeSupport.php',
     'OCA\\Settings\\SetupChecks\\PhpGetEnv' => $baseDir . '/../lib/SetupChecks/PhpGetEnv.php',
+    'OCA\\Settings\\SetupChecks\\PhpMaxFileSize' => $baseDir . '/../lib/SetupChecks/PhpMaxFileSize.php',
     'OCA\\Settings\\SetupChecks\\PhpMemoryLimit' => $baseDir . '/../lib/SetupChecks/PhpMemoryLimit.php',
     'OCA\\Settings\\SetupChecks\\PhpModules' => $baseDir . '/../lib/SetupChecks/PhpModules.php',
     'OCA\\Settings\\SetupChecks\\PhpOpcacheSetup' => $baseDir . '/../lib/SetupChecks/PhpOpcacheSetup.php',
diff --git a/apps/settings/composer/composer/autoload_static.php b/apps/settings/composer/composer/autoload_static.php
index 32a323a7863bf..b86200b491ee4 100644
--- a/apps/settings/composer/composer/autoload_static.php
+++ b/apps/settings/composer/composer/autoload_static.php
@@ -118,6 +118,7 @@ class ComposerStaticInitSettings
         'OCA\\Settings\\SetupChecks\\PhpDisabledFunctions' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpDisabledFunctions.php',
         'OCA\\Settings\\SetupChecks\\PhpFreetypeSupport' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpFreetypeSupport.php',
         'OCA\\Settings\\SetupChecks\\PhpGetEnv' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpGetEnv.php',
+        'OCA\\Settings\\SetupChecks\\PhpMaxFileSize' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpMaxFileSize.php',
         'OCA\\Settings\\SetupChecks\\PhpMemoryLimit' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpMemoryLimit.php',
         'OCA\\Settings\\SetupChecks\\PhpModules' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpModules.php',
         'OCA\\Settings\\SetupChecks\\PhpOpcacheSetup' => __DIR__ . '/..' . '/../lib/SetupChecks/PhpOpcacheSetup.php',
diff --git a/apps/settings/lib/AppInfo/Application.php b/apps/settings/lib/AppInfo/Application.php
index ac553ddca9e37..9a1f11ae9df9b 100644
--- a/apps/settings/lib/AppInfo/Application.php
+++ b/apps/settings/lib/AppInfo/Application.php
@@ -75,6 +75,7 @@
 use OCA\Settings\SetupChecks\PhpDisabledFunctions;
 use OCA\Settings\SetupChecks\PhpFreetypeSupport;
 use OCA\Settings\SetupChecks\PhpGetEnv;
+use OCA\Settings\SetupChecks\PhpMaxFileSize;
 use OCA\Settings\SetupChecks\PhpMemoryLimit;
 use OCA\Settings\SetupChecks\PhpModules;
 use OCA\Settings\SetupChecks\PhpOpcacheSetup;
@@ -200,6 +201,7 @@ public function register(IRegistrationContext $context): void {
 		$context->registerSetupCheck(PhpDisabledFunctions::class);
 		$context->registerSetupCheck(PhpFreetypeSupport::class);
 		$context->registerSetupCheck(PhpGetEnv::class);
+		$context->registerSetupCheck(PhpMaxFileSize::class);
 		$context->registerSetupCheck(PhpMemoryLimit::class);
 		$context->registerSetupCheck(PhpModules::class);
 		$context->registerSetupCheck(PhpOpcacheSetup::class);
diff --git a/apps/settings/lib/SetupChecks/PhpMaxFileSize.php b/apps/settings/lib/SetupChecks/PhpMaxFileSize.php
new file mode 100644
index 0000000000000..d81cbe6d45c18
--- /dev/null
+++ b/apps/settings/lib/SetupChecks/PhpMaxFileSize.php
@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Settings\SetupChecks;
+
+use bantu\IniGetWrapper\IniGetWrapper;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\SetupCheck\ISetupCheck;
+use OCP\SetupCheck\SetupResult;
+use OCP\Util;
+
+class PhpMaxFileSize implements ISetupCheck {
+	public function __construct(
+		private IL10N $l10n,
+		private IURLGenerator $urlGenerator,
+		private IniGetWrapper $iniGetWrapper,
+	) {
+	}
+
+	public function getCategory(): string {
+		return 'php';
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('PHP file size upload limit');
+	}
+
+	public function run(): SetupResult {
+		$upload_max_filesize = (string)$this->iniGetWrapper->getString('upload_max_filesize');
+		$post_max_size = (string)$this->iniGetWrapper->getString('post_max_size');
+		$max_input_time = (int)$this->iniGetWrapper->getString('max_input_time');
+		$max_execution_time = (int)$this->iniGetWrapper->getString('max_execution_time');
+
+		$warnings = [];
+		$recommendedSize = 16 * 1024 * 1024 * 1024;
+		$recommendedTime = 3600;
+
+		// Check if the PHP upload limit is too low
+		if (Util::computerFileSize($upload_max_filesize) < $recommendedSize) {
+			$warnings[] = $this->l10n->t('The PHP upload_max_filesize is too low. A size of at least %1$s is recommended. Current value: %2$s.', [
+				Util::humanFileSize($recommendedSize),
+				$upload_max_filesize,
+			]);
+		}
+		if (Util::computerFileSize($post_max_size) < $recommendedSize) {
+			$warnings[] = $this->l10n->t('The PHP post_max_size is too low. A size of at least %1$s is recommended. Current value: %2$s.', [
+				Util::humanFileSize($recommendedSize),
+				$post_max_size,
+			]);
+		}
+
+		// Check if the PHP execution time is too low
+		if ($max_input_time < $recommendedTime && $max_input_time !== -1) {
+			$warnings[] = $this->l10n->t('The PHP max_input_time is too low. A time of at least %1$s is recommended. Current value: %2$s.', [
+				$recommendedTime,
+				$max_input_time,
+			]);
+		}
+
+		if ($max_execution_time < $recommendedTime && $max_execution_time !== -1) {
+			$warnings[] = $this->l10n->t('The PHP max_execution_time is too low. A time of at least %1$s is recommended. Current value: %2$s.', [
+				$recommendedTime,
+				$max_execution_time,
+			]);
+		}
+
+		if (!empty($warnings)) {
+			return SetupResult::warning(join(' ', $warnings), $this->urlGenerator->linkToDocs('admin-big-file-upload'));
+		}
+
+		return SetupResult::success();
+	}
+}