diff --git a/app/config.py b/app/config.py
index 9e3edb0219..c220f7beed 100644
--- a/app/config.py
+++ b/app/config.py
@@ -585,8 +585,8 @@ class Config(object):
         "job": "{}-dvla-file-per-job".format(os.getenv("NOTIFY_ENVIRONMENT", "development")),
         "notification": "{}-dvla-letter-api-files".format(os.getenv("NOTIFY_ENVIRONMENT", "development")),
     }
-    SERVICE_ANNUAL_EMAIL_LIMIT = env.int("SERVICE_ANNUAL_EMAIL_LIMIT", 10_000_000)
-    SERVICE_ANNUAL_SMS_LIMIT = env.int("SERVICE_ANNUAL_SMS_LIMIT", 25_000)
+    SERVICE_ANNUAL_EMAIL_LIMIT = env.int("SERVICE_ANNUAL_EMAIL_LIMIT", 20_000_000)
+    SERVICE_ANNUAL_SMS_LIMIT = env.int("SERVICE_ANNUAL_SMS_LIMIT", 100_000)
 
     FREE_SMS_TIER_FRAGMENT_COUNT = 250000
 
diff --git a/app/models.py b/app/models.py
index 2fe296a1d0..dd04d61bf2 100644
--- a/app/models.py
+++ b/app/models.py
@@ -65,8 +65,8 @@
 DELIVERY_STATUS_CALLBACK_TYPE = "delivery_status"
 COMPLAINT_CALLBACK_TYPE = "complaint"
 SERVICE_CALLBACK_TYPES = [DELIVERY_STATUS_CALLBACK_TYPE, COMPLAINT_CALLBACK_TYPE]
-DEFAULT_SMS_ANNUAL_LIMIT = 25000
-DEFAULT_EMAIL_ANNUAL_LIMIT = 10000000
+DEFAULT_SMS_ANNUAL_LIMIT = 100000
+DEFAULT_EMAIL_ANNUAL_LIMIT = 20000000
 
 sms_sending_vehicles = db.Enum(*[vehicle.value for vehicle in SmsSendingVehicles], name="sms_sending_vehicles")
 
diff --git a/migrations/versions/0470_change_default_limit.py b/migrations/versions/0470_change_default_limit.py
new file mode 100644
index 0000000000..ea134dd165
--- /dev/null
+++ b/migrations/versions/0470_change_default_limit.py
@@ -0,0 +1,25 @@
+"""empty message
+
+Revision ID: 0470_change_default_limit
+Revises: 0469_edit_emails
+Create Date: 2016-06-01 14:17:01.963181
+
+"""
+revision = "0470_change_default_limit"
+down_revision = "0469_edit_emails"
+
+from alembic import op
+
+
+def upgrade():
+    conn = op.get_bind()
+    conn.execute("ALTER TABLE services ALTER COLUMN email_annual_limit SET DEFAULT 20000000")
+    conn.execute("ALTER TABLE services ALTER COLUMN sms_annual_limit SET DEFAULT 100000")
+    conn.execute("UPDATE services SET email_annual_limit = 20000000 WHERE email_annual_limit = 10000000")
+    conn.execute("UPDATE services SET sms_annual_limit = 100000 WHERE sms_annual_limit = 25000")
+
+
+def downgrade():
+    conn = op.get_bind()
+    conn.execute("ALTER TABLE services ALTER COLUMN email_annual_limit SET DEFAULT 10000000")
+    conn.execute("ALTER TABLE services ALTER COLUMN sms_annual_limit SET DEFAULT 25000")
diff --git a/tests/app/test_schemas.py b/tests/app/test_schemas.py
index 36f1dfb1b9..000e82884c 100644
--- a/tests/app/test_schemas.py
+++ b/tests/app/test_schemas.py
@@ -149,5 +149,5 @@ def test_service_schema_returns_annual_limits(sample_service):
 
     data = service_schema.dump(sample_service)
 
-    assert data["sms_annual_limit"] == 25000
-    assert data["email_annual_limit"] == 10000000
+    assert data["sms_annual_limit"] == 100000
+    assert data["email_annual_limit"] == 20000000