diff --git a/app/Jobs/ApplicationDeploymentJob.php b/app/Jobs/ApplicationDeploymentJob.php
index 09068fba4..2edc08235 100644
--- a/app/Jobs/ApplicationDeploymentJob.php
+++ b/app/Jobs/ApplicationDeploymentJob.php
@@ -1106,7 +1106,7 @@ private function push_to_docker_registry()
                     'hidden' => true,
                 ],
             );
-            if ($this->application->docker_registry_image_tag) {
+            if ($this->shouldPushDockerRegistryImageTag()) {
                 // Tag image with docker_registry_image_tag
                 $this->application_deployment_queue->addLogEntry("Tagging and pushing image with {$this->application->docker_registry_image_tag} tag.");
                 $this->execute_remote_command(
@@ -1130,6 +1130,15 @@ private function push_to_docker_registry()
         }
     }
 
+    private function shouldPushDockerRegistryImageTag(): bool
+    {
+        if (blank($this->application->docker_registry_image_tag)) {
+            return false;
+        }
+
+        return $this->pull_request_id === 0;
+    }
+
     private function generate_image_names()
     {
         if ($this->application->dockerfile) {
diff --git a/tests/Unit/DockerImagePreviewTagResolutionTest.php b/tests/Unit/DockerImagePreviewTagResolutionTest.php
index e6d0b6a4e..17f7d7b9b 100644
--- a/tests/Unit/DockerImagePreviewTagResolutionTest.php
+++ b/tests/Unit/DockerImagePreviewTagResolutionTest.php
@@ -74,3 +74,60 @@
 
     expect($method->invoke($job))->toBe('latest');
 });
+
+function makeDockerRegistryTagPushJob(int $pullRequestId, ?string $dockerRegistryImageTag): object
+{
+    $reflection = new ReflectionClass(ApplicationDeploymentJob::class);
+    $job = $reflection->newInstanceWithoutConstructor();
+
+    $pullRequestProperty = $reflection->getProperty('pull_request_id');
+    $pullRequestProperty->setAccessible(true);
+    $pullRequestProperty->setValue($job, $pullRequestId);
+
+    $applicationProperty = $reflection->getProperty('application');
+    $applicationProperty->setAccessible(true);
+    $applicationProperty->setValue($job, new Application([
+        'docker_registry_image_tag' => $dockerRegistryImageTag,
+    ]));
+
+    return $job;
+}
+
+it('pushes the configured docker registry image tag for production deployments', function () {
+    $reflection = new ReflectionClass(ApplicationDeploymentJob::class);
+    $job = makeDockerRegistryTagPushJob(
+        pullRequestId: 0,
+        dockerRegistryImageTag: 'latest',
+    );
+
+    $method = $reflection->getMethod('shouldPushDockerRegistryImageTag');
+    $method->setAccessible(true);
+
+    expect($method->invoke($job))->toBeTrue();
+});
+
+it('skips the configured docker registry image tag for preview deployments', function () {
+    $reflection = new ReflectionClass(ApplicationDeploymentJob::class);
+    $job = makeDockerRegistryTagPushJob(
+        pullRequestId: 42,
+        dockerRegistryImageTag: 'latest',
+    );
+
+    $method = $reflection->getMethod('shouldPushDockerRegistryImageTag');
+    $method->setAccessible(true);
+
+    expect($method->invoke($job))->toBeFalse();
+});
+
+it('skips pushing a configured docker registry image tag when no tag is set', function () {
+    $reflection = new ReflectionClass(ApplicationDeploymentJob::class);
+    $job = makeDockerRegistryTagPushJob(
+        pullRequestId: 0,
+        dockerRegistryImageTag: null,
+    );
+
+    $method = $reflection->getMethod('shouldPushDockerRegistryImageTag');
+    $method->setAccessible(true);
+
+    expect($method->invoke($job))->toBeFalse();
+});