diff --git a/app/models/form/sales/questions/mortgage_lender.rb b/app/models/form/sales/questions/mortgage_lender.rb
index 1fee10b8b..ad584aab5 100644
--- a/app/models/form/sales/questions/mortgage_lender.rb
+++ b/app/models/form/sales/questions/mortgage_lender.rb
@@ -56,8 +56,55 @@ class Form::Sales::Questions::MortgageLender < ::Form::Question
     "38" =>	"West Bromwich Building Society",
     "39" =>	"Yorkshire Building Society",
     "40" =>	"Other",
+    "0" =>	"Don’t know",
   }.freeze
 
+  def displayed_answer_options(_log, _user = nil)
+    {
+      "" => "Select an option",
+      "1" =>	"Atom Bank",
+      "2" =>	"Barclays Bank PLC",
+      "3" =>	"Bath Building Society",
+      "4" =>	"Buckinghamshire Building Society",
+      "5" =>	"Cambridge Building Society",
+      "6" =>	"Coventry Building Society",
+      "7" =>	"Cumberland Building Society",
+      "8" =>	"Darlington Building Society",
+      "9" =>	"Dudley Building Society",
+      "10" =>	"Ecology Building Society",
+      "11" =>	"Halifax",
+      "12" =>	"Hanley Economic Building Society",
+      "13" =>	"Hinckley and Rugby Building Society",
+      "14" =>	"Holmesdale Building Society",
+      "15" =>	"Ipswich Building Society",
+      "16" =>	"Leeds Building Society",
+      "17" =>	"Lloyds Bank",
+      "18" =>	"Mansfield Building Society",
+      "19" =>	"Market Harborough Building Society",
+      "20" =>	"Melton Mowbray Building Society",
+      "21" =>	"Nationwide Building Society",
+      "22" =>	"Natwest",
+      "23" =>	"Nedbank Private Wealth",
+      "24" =>	"Newbury Building Society",
+      "25" =>	"OneSavings Bank",
+      "26" =>	"Parity Trust",
+      "27" =>	"Penrith Building Society",
+      "28" =>	"Pepper Homeloans",
+      "29" =>	"Royal Bank of Scotland",
+      "30" =>	"Santander",
+      "31" =>	"Skipton Building Society",
+      "32" =>	"Teachers Building Society",
+      "33" =>	"The Co-operative Bank",
+      "34" =>	"Tipton & Coseley Building Society",
+      "35" =>	"TSB",
+      "36" =>	"Ulster Bank",
+      "37" =>	"Virgin Money",
+      "38" =>	"West Bromwich Building Society",
+      "39" =>	"Yorkshire Building Society",
+      "40" =>	"Other",
+    }
+  end
+
   def question_number
     case @ownershipsch
     when 1
diff --git a/app/models/sales_log.rb b/app/models/sales_log.rb
index 5b0d8f17c..ba2ea4fa8 100644
--- a/app/models/sales_log.rb
+++ b/app/models/sales_log.rb
@@ -42,7 +42,7 @@ class SalesLog < Log
   }
   scope :filter_by_organisation, ->(org, _user = nil) { where(owning_organisation: org) }
 
-  OPTIONAL_FIELDS = %w[saledate_check purchid monthly_charges_value_check old_persons_shared_ownership_value_check mortgagelender othtype discounted_sale_value_check].freeze
+  OPTIONAL_FIELDS = %w[saledate_check purchid monthly_charges_value_check old_persons_shared_ownership_value_check othtype discounted_sale_value_check].freeze
   RETIREMENT_AGES = { "M" => 65, "F" => 60, "X" => 65 }.freeze
 
   def lettings?
diff --git a/spec/models/form/sales/questions/mortgage_lender_spec.rb b/spec/models/form/sales/questions/mortgage_lender_spec.rb
index 84caef701..811746dbe 100644
--- a/spec/models/form/sales/questions/mortgage_lender_spec.rb
+++ b/spec/models/form/sales/questions/mortgage_lender_spec.rb
@@ -42,6 +42,53 @@ RSpec.describe Form::Sales::Questions::MortgageLender, type: :model do
 
   it "has the correct answer_options" do
     expect(question.answer_options).to eq({
+      "" => "Select an option",
+      "0" => "Don’t know",
+      "1" =>	"Atom Bank",
+      "2" =>	"Barclays Bank PLC",
+      "3" =>	"Bath Building Society",
+      "4" =>	"Buckinghamshire Building Society",
+      "5" =>	"Cambridge Building Society",
+      "6" =>	"Coventry Building Society",
+      "7" =>	"Cumberland Building Society",
+      "8" =>	"Darlington Building Society",
+      "9" =>	"Dudley Building Society",
+      "10" =>	"Ecology Building Society",
+      "11" =>	"Halifax",
+      "12" =>	"Hanley Economic Building Society",
+      "13" =>	"Hinckley and Rugby Building Society",
+      "14" =>	"Holmesdale Building Society",
+      "15" =>	"Ipswich Building Society",
+      "16" =>	"Leeds Building Society",
+      "17" =>	"Lloyds Bank",
+      "18" =>	"Mansfield Building Society",
+      "19" =>	"Market Harborough Building Society",
+      "20" =>	"Melton Mowbray Building Society",
+      "21" =>	"Nationwide Building Society",
+      "22" =>	"Natwest",
+      "23" =>	"Nedbank Private Wealth",
+      "24" =>	"Newbury Building Society",
+      "25" =>	"OneSavings Bank",
+      "26" =>	"Parity Trust",
+      "27" =>	"Penrith Building Society",
+      "28" =>	"Pepper Homeloans",
+      "29" =>	"Royal Bank of Scotland",
+      "30" =>	"Santander",
+      "31" =>	"Skipton Building Society",
+      "32" =>	"Teachers Building Society",
+      "33" =>	"The Co-operative Bank",
+      "34" =>	"Tipton & Coseley Building Society",
+      "35" =>	"TSB",
+      "36" =>	"Ulster Bank",
+      "37" =>	"Virgin Money",
+      "38" =>	"West Bromwich Building Society",
+      "39" =>	"Yorkshire Building Society",
+      "40" =>	"Other",
+    })
+  end
+
+  it "has the correct displayed_answer_options" do
+    expect(question.displayed_answer_options(nil, nil)).to eq({
       "" => "Select an option",
       "1" =>	"Atom Bank",
       "2" =>	"Barclays Bank PLC",
diff --git a/spec/models/sales_log_spec.rb b/spec/models/sales_log_spec.rb
index d8f4ca5bc..231dc68c4 100644
--- a/spec/models/sales_log_spec.rb
+++ b/spec/models/sales_log_spec.rb
@@ -59,7 +59,6 @@ RSpec.describe SalesLog, type: :model do
           purchid
           monthly_charges_value_check
           old_persons_shared_ownership_value_check
-          mortgagelender
           othtype
           discounted_sale_value_check
           proplen
@@ -78,7 +77,6 @@ RSpec.describe SalesLog, type: :model do
           purchid
           monthly_charges_value_check
           old_persons_shared_ownership_value_check
-          mortgagelender
           othtype
           discounted_sale_value_check
           address_line2