diff --git a/backend/tests/integration/customers.integration.test.ts b/backend/tests/integration/customers.integration.test.ts
index c0e2b5b..e99f3c5 100755
--- a/backend/tests/integration/customers.integration.test.ts
+++ b/backend/tests/integration/customers.integration.test.ts
@@ -81,7 +81,7 @@ describe('POST /api/customers/register', () => {
     });
 
     expect(Object.keys(res.body).sort()).toEqual([
-      'created_at', 'email', 'email_verified', 'favorite_alerts',
+      'analytics_consent', 'created_at', 'email', 'email_verified', 'favorite_alerts',
       'first_name', 'id', 'last_name', 'marketing_consent'
     ]);
   });
@@ -106,6 +106,44 @@ describe('POST /api/customers/register', () => {
     expect(res.body.marketing_consent).toBe(true);
   });
 
+  // Quebec's Law 25 s.8.1 requires profiling to be off until the person turns
+  // it on, so this is a compliance property rather than a default worth
+  // debating. Asserted end to end because the column default, the register
+  // route and the stored wording all have to agree for it to hold.
+  it('creates an account with analytics consent off by default', async () => {
+    const res = await request(app).post('/api/customers/register').send({ firstName: 'Test', lastName: 'Customer',
+      email: 'analytics-default@example.com',
+      password: 'supersecret123'
+    });
+    expect(res.body.analytics_consent).toBe(false);
+  });
+
+  // The two consents are separate purposes and must be separately refusable.
+  // Taking the emails must not opt anybody into being tracked — that bundling
+  // is what GDPR treats as invalid consent, and it is the mistake this branch
+  // made once before it was caught.
+  it('opting in to marketing alone does not opt in to analytics', async () => {
+    const res = await request(app).post('/api/customers/register').send({ firstName: 'Test', lastName: 'Customer',
+      email: 'marketing-only@example.com',
+      password: 'supersecret123',
+      marketingConsent: true
+    });
+    expect(res.body.marketing_consent).toBe(true);
+    expect(res.body.analytics_consent).toBe(false);
+  });
+
+  it('respects an explicit analytics opt-in, independently of marketing', async () => {
+    const res = await request(app).post('/api/customers/register').send({ firstName: 'Test', lastName: 'Customer',
+      email: 'analytics-only@example.com',
+      password: 'supersecret123',
+      analyticsConsent: true
+    });
+    expect(res.body.analytics_consent).toBe(true);
+    // Refusing the emails while accepting the tracking has to be possible too,
+    // or the consent is not granular in both directions.
+    expect(res.body.marketing_consent).toBe(false);
+  });
+
   it('rejects a duplicate email', async () => {
     await request(app).post('/api/customers/register').send({ firstName: 'Test', lastName: 'Customer',
       email: 'dupe@example.com',