diff --git a/app/controllers/api/v1/auctions_controller.rb b/app/controllers/api/v1/auctions_controller.rb
index bf92be930..de8e94442 100644
--- a/app/controllers/api/v1/auctions_controller.rb
+++ b/app/controllers/api/v1/auctions_controller.rb
@@ -30,6 +30,8 @@ module Api
           raise "Invalid status #{params[:status]}"
         end
 
+        auction.mark_deadline(params[:registration_deadline]) if params[:registration_deadline]
+
         if auction.payment_not_received? || auction.domain_not_registered?
           update_whois_from_auction(Auction.pending(auction.domain))
         else
diff --git a/app/models/auction.rb b/app/models/auction.rb
index 6ddd8e394..c4b9f6130 100644
--- a/app/models/auction.rb
+++ b/app/models/auction.rb
@@ -23,10 +23,19 @@ class Auction < ApplicationRecord
     save!
   end
 
+  def whois_deadline
+    registration_deadline.to_s
+  end
+
   def mark_as_no_bids
     no_bids!
   end
 
+  def mark_deadline(registration_deadline)
+    self.registration_deadline = registration_deadline
+    save!
+  end
+
   def mark_as_payment_received
     self.status = self.class.statuses[:payment_received]
     generate_registration_code
@@ -69,4 +78,4 @@ class Auction < ApplicationRecord
   def registration_code_matches?(code)
     registration_code == code
   end
-end
\ No newline at end of file
+end
diff --git a/app/models/whois/record.rb b/app/models/whois/record.rb
index ae7422403..1d827e22a 100644
--- a/app/models/whois/record.rb
+++ b/app/models/whois/record.rb
@@ -16,7 +16,8 @@ module Whois
       elsif auction.awaiting_payment? || auction.payment_received?
         update!(json: { name: auction.domain,
                         status: ['PendingRegistration'],
-                        disclaimer: self.class.disclaimer })
+                        disclaimer: self.class.disclaimer,
+                        registration_deadline: auction.whois_deadline })
       end
     end
   end
diff --git a/db/migrate/20200417075720_add_registration_deadline_date_to_models.rb b/db/migrate/20200417075720_add_registration_deadline_date_to_models.rb
new file mode 100644
index 000000000..8614ec889
--- /dev/null
+++ b/db/migrate/20200417075720_add_registration_deadline_date_to_models.rb
@@ -0,0 +1,5 @@
+class AddRegistrationDeadlineDateToModels < ActiveRecord::Migration[5.2]
+  def change
+    add_column :auctions, :registration_deadline, :datetime
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index 604238d4c..511f38d2e 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -325,7 +325,8 @@ CREATE TABLE public.auctions (
     status character varying NOT NULL,
     uuid uuid DEFAULT public.gen_random_uuid() NOT NULL,
     created_at timestamp without time zone NOT NULL,
-    registration_code character varying
+    registration_code character varying,
+    registration_deadline timestamp without time zone
 );
 
 
@@ -4463,5 +4464,5 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200130092113'),
 ('20200203143458'),
 ('20200204103125'),
-('20200311114649');
-
+('20200311114649'),
+('20200417075720');
diff --git a/test/integration/api/v1/auctions/update_test.rb b/test/integration/api/v1/auctions/update_test.rb
index fe4d075b0..e6ce3c683 100644
--- a/test/integration/api/v1/auctions/update_test.rb
+++ b/test/integration/api/v1/auctions/update_test.rb
@@ -39,6 +39,17 @@ class ApiV1AuctionUpdateTest < ActionDispatch::IntegrationTest
     assert @auction.awaiting_payment?
   end
 
+  def test_sets_registration_deadline
+    deadline = (Time.zone.now + 10.days).end_of_day
+    patch api_v1_auction_path(@auction.uuid),
+          params: { status: Auction.statuses[:awaiting_payment],
+                    registration_deadline: deadline},
+          as: :json
+    @auction.reload
+
+    assert_in_delta @auction.registration_deadline, deadline, 1.second
+  end
+
   def test_marks_as_no_bids
     patch api_v1_auction_path(@auction.uuid),
           params: { status: Auction.statuses[:no_bids] },
diff --git a/test/models/whois/record_test.rb b/test/models/whois/record_test.rb
index 5f2454105..64e8a894a 100644
--- a/test/models/whois/record_test.rb
+++ b/test/models/whois/record_test.rb
@@ -40,24 +40,34 @@ class Whois::RecordTest < ActiveSupport::TestCase
   end
 
   def test_updates_whois_record_from_auction_when_awaiting_payment
-    @auction.update!(domain: 'domain.test', status: Auction.statuses[:awaiting_payment])
+    @auction.update!(domain: 'domain.test',
+                     status: Auction.statuses[:awaiting_payment],
+                     registration_deadline: registration_deadline)
     @whois_record.update!(name: 'domain.test')
     @whois_record.update_from_auction(@auction)
     @whois_record.reload
 
     assert_equal ({ 'name' => 'domain.test',
                     'status' => ['PendingRegistration'],
-                    'disclaimer' => 'disclaimer' }), @whois_record.json
+                    'disclaimer' => 'disclaimer',
+                    'registration_deadline' => registration_deadline.to_s }), @whois_record.json
   end
 
   def test_updates_whois_record_from_auction_when_payment_received
-    @auction.update!(domain: 'domain.test', status: Auction.statuses[:payment_received])
+    @auction.update!(domain: 'domain.test',
+                     status: Auction.statuses[:payment_received],
+                     registration_deadline: registration_deadline)
     @whois_record.update!(name: 'domain.test')
     @whois_record.update_from_auction(@auction)
     @whois_record.reload
 
     assert_equal ({ 'name' => 'domain.test',
                     'status' => ['PendingRegistration'],
-                    'disclaimer' => 'disclaimer' }), @whois_record.json
+                    'disclaimer' => 'disclaimer',
+                    'registration_deadline' => registration_deadline.to_s }), @whois_record.json
   end
-end
\ No newline at end of file
+
+  def registration_deadline
+    Time.zone.now + 10.days
+  end
+end