diff --git a/app/components/providers/provider_list/view.html.erb b/app/components/providers/provider_list/view.html.erb
index bae50c979a..12c5e9cac1 100644
--- a/app/components/providers/provider_list/view.html.erb
+++ b/app/components/providers/provider_list/view.html.erb
@@ -25,8 +25,8 @@
 
       if @provider.accredited_provider?
         component.with_row do |row|
-          row.with_key { "Accredited provider ID" }
-          row.with_value { value_provided?(@provider.accredited_provider_id.to_s) }
+          row.with_key { "Accredited provider Number" }
+          row.with_value { value_provided?(@provider.accredited_provider_number.to_s) }
           row.with_action(text: "Change", href: edit_support_recruitment_cycle_provider_path(@provider.recruitment_cycle_year, @provider), visually_hidden_text: "accredited provider id")
         end
       end
diff --git a/app/controllers/support/providers_controller.rb b/app/controllers/support/providers_controller.rb
index 707921e64a..8a3031d9d2 100644
--- a/app/controllers/support/providers_controller.rb
+++ b/app/controllers/support/providers_controller.rb
@@ -52,7 +52,7 @@ def update_provider_params
                                        :provider_type,
                                        :ukprn,
                                        :urn,
-                                       :accrediting_provider, :accredited_provider_id)
+                                       :accrediting_provider, :accredited_provider_number)
     end
 
     def create_provider_params
diff --git a/app/forms/support/provider_form.rb b/app/forms/support/provider_form.rb
index d1eaca183d..6fe487bdf1 100644
--- a/app/forms/support/provider_form.rb
+++ b/app/forms/support/provider_form.rb
@@ -4,7 +4,7 @@ module Support
   class ProviderForm < BaseForm
     FIELDS = %i[
       accredited_provider
-      accredited_provider_id
+      accredited_provider_number
 
       provider_code
       provider_name
@@ -14,9 +14,9 @@ class ProviderForm < BaseForm
       urn
     ].freeze
 
-    UNIVERSITY_ACCREDITED_PROVIDER_ID_FORMAT = /\A1\d{3}\z/
-    SCITT_ACCREDITED_PROVIDER_ID_FORMAT = /\A5\d{3}\z/
-    ACCREDITED_PROVIDER_ID_FORMAT = /\A[15]\d{3}\z/
+    UNIVERSITY_ACCREDITED_PROVIDER_NUMBER_FORMAT = /\A1\d{3}\z/
+    SCITT_ACCREDITED_PROVIDER_NUMBER_FORMAT = /\A5\d{3}\z/
+    ACCREDITED_PROVIDER_NUMBER_FORMAT = /\A[15]\d{3}\z/
 
     attr_accessor(*FIELDS, :recruitment_cycle)
 
@@ -32,7 +32,7 @@ def initialize(identifier_model, recruitment_cycle:, params: {})
     validate :provider_code_taken
 
     validates :accredited_provider, presence: true
-    validate :validate_accredited_provider_id
+    validate :validate_accredited_provider_number
 
     validates :ukprn, ukprn_format: { allow_blank: false }
 
@@ -77,21 +77,21 @@ def provider_type_school_is_an_invalid_accredited_provider
       errors.add(:provider_type, :school_is_an_invalid_accredited_provider) if accredited_provider? && lead_school?
     end
 
-    def validate_accredited_provider_id
+    def validate_accredited_provider_number
       return unless accredited_provider?
 
-      if accredited_provider_id.blank?
-        errors.add(:accredited_provider_id, :blank)
+      if accredited_provider_number.blank?
+        errors.add(:accredited_provider_number, :blank)
       else
         regex = if university?
-                  UNIVERSITY_ACCREDITED_PROVIDER_ID_FORMAT
+                  UNIVERSITY_ACCREDITED_PROVIDER_NUMBER_FORMAT
                 elsif scitt?
-                  SCITT_ACCREDITED_PROVIDER_ID_FORMAT
+                  SCITT_ACCREDITED_PROVIDER_NUMBER_FORMAT
                 else
-                  ACCREDITED_PROVIDER_ID_FORMAT
+                  ACCREDITED_PROVIDER_NUMBER_FORMAT
                 end
 
-        errors.add(:accredited_provider_id, :invalid) unless regex.match?(accredited_provider_id)
+        errors.add(:accredited_provider_number, :invalid) unless regex.match?(accredited_provider_number)
       end
     end
   end
diff --git a/app/models/provider.rb b/app/models/provider.rb
index ed04f87a90..ffe1b0ee89 100644
--- a/app/models/provider.rb
+++ b/app/models/provider.rb
@@ -168,7 +168,7 @@ def current_accredited_courses
 
   validate :add_enrichment_errors
 
-  validates :accredited_provider_id, accredited_provider_id_format: { allow_blank: true }, on: :update, if: :accredited_provider?
+  validates :accredited_provider_number, accredited_provider_number_format: { allow_blank: true }, on: :update, if: :accredited_provider?
 
   acts_as_mappable lat_column_name: :latitude, lng_column_name: :longitude
 
diff --git a/app/validators/accredited_provider_id_format_validator.rb b/app/validators/accredited_provider_number_format_validator.rb
similarity index 85%
rename from app/validators/accredited_provider_id_format_validator.rb
rename to app/validators/accredited_provider_number_format_validator.rb
index 76322aac51..126c7c7a1f 100644
--- a/app/validators/accredited_provider_id_format_validator.rb
+++ b/app/validators/accredited_provider_number_format_validator.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class AccreditedProviderIdFormatValidator < ActiveModel::EachValidator
+class AccreditedProviderNumberFormatValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     return if options[:allow_blank] && value.blank?
 
diff --git a/app/views/support/providers/_list.html.erb b/app/views/support/providers/_list.html.erb
index b6f2d68e73..567492455b 100644
--- a/app/views/support/providers/_list.html.erb
+++ b/app/views/support/providers/_list.html.erb
@@ -27,8 +27,8 @@
         <td class="govuk-table__cell">
           <span class="govuk-!-display-block govuk-!-margin-bottom-1">
             <% if provider.accrediting_provider_before_type_cast == "Y" %>
-               <% if provider.accredited_provider_id.present? %>
-                  <%= govuk_tag(text: provider.accredited_provider_id, colour: "green") %>
+               <% if provider.accredited_provider_number.present? %>
+                  <%= govuk_tag(text: provider.accredited_provider_number, colour: "green") %>
                <% else %>
                   <%= govuk_tag(text: "Fill me in", colour: "yellow") %>
                <% end %>
diff --git a/app/views/support/providers/edit.html.erb b/app/views/support/providers/edit.html.erb
index 299948f160..cb83ff9fa5 100644
--- a/app/views/support/providers/edit.html.erb
+++ b/app/views/support/providers/edit.html.erb
@@ -35,8 +35,8 @@
 
   <%= f.govuk_radio_buttons_fieldset :accrediting_provider, legend: { text: "Is the organisation an accredited provider?", size: "s" } do %>
     <%= f.govuk_radio_button :accrediting_provider, :accredited_provider, label: { text: "Yes", size: "s" } do %>
-      <%= f.govuk_text_field :accredited_provider_id,
-        label: { text: "Accredited provider ID" },
+      <%= f.govuk_text_field :accredited_provider_number,
+        label: { text: "Accredited provider Number" },
         width: 10 %>
     <% end %>
     <%= f.govuk_radio_button :accrediting_provider, :not_an_accredited_provider, label: { text: "No", size: "s" } %>
diff --git a/app/views/support/providers/onboarding/checks/show.html.erb b/app/views/support/providers/onboarding/checks/show.html.erb
index 66ef882c76..f6d12c3b82 100644
--- a/app/views/support/providers/onboarding/checks/show.html.erb
+++ b/app/views/support/providers/onboarding/checks/show.html.erb
@@ -37,9 +37,9 @@
 
             if @provider_form.accredited_provider?
               component.with_row do |row|
-                row.with_key { "Accredited provider ID" }
-                row.with_value { @provider_form.accredited_provider_id }
-                row.with_action(text: "Change", href: new_support_recruitment_cycle_providers_onboarding_path(goto_confirmation: true), visually_hidden_text: "accredited provider ID")
+                row.with_key { "Accredited provider Number" }
+                row.with_value { @provider_form.accredited_provider_number }
+                row.with_action(text: "Change", href: new_support_recruitment_cycle_providers_onboarding_path(goto_confirmation: true), visually_hidden_text: "accredited provider Number")
               end
             end
 
diff --git a/app/views/support/providers/onboardings/new.html.erb b/app/views/support/providers/onboardings/new.html.erb
index b85bcbcfc7..cb8dcba4c7 100644
--- a/app/views/support/providers/onboardings/new.html.erb
+++ b/app/views/support/providers/onboardings/new.html.erb
@@ -25,9 +25,9 @@
 
       <%= f.govuk_radio_buttons_fieldset(:accredited_provider, legend: { text: "Is the organisation an accredited provider?", size: "s" }) do %>
         <%= f.govuk_radio_button :accredited_provider, :accredited_provider, label: { text: "Yes" }, link_errors: true  do %>
-          <%= f.govuk_text_field :accredited_provider_id,
+          <%= f.govuk_text_field :accredited_provider_number,
                                 width: 10,
-                                label: { text: "Accredited provider ID" },
+                                label: { text: "Accredited provider Number" },
                                 autocomplete: :disabled %>
 
           <% end %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 4e7f8d1047..ea316f6bdb 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -901,9 +901,9 @@ en:
             ukprn:
               blank: Enter a UK provider reference number (UKPRN)
               contains_eight_numbers_starting_with_one: Enter a valid UK provider reference number (UKPRN) - it must be 8 digits starting with a 1, like 12345678
-            accredited_provider_id:
-              blank: Enter the accredited provider ID
-              format: Enter a valid accredited provider ID - it must be 4 digits starting with a 1 or a 5
+            accredited_provider_number:
+              blank: Enter the accredited provider Number
+              format: Enter a valid accredited provider Number - it must be 4 digits starting with a 1 or a 5
         organisation:
           attributes:
             name:
@@ -1092,9 +1092,9 @@ en:
             provider_type:
               blank: "Select a provider type"
               school_is_an_invalid_accredited_provider: "Accredited provider cannot be a school"
-            accredited_provider_id:
-              blank: "Enter an accredited provider ID"
-              invalid: "Enter a valid accredited provider ID"
+            accredited_provider_number:
+              blank: "Enter an accredited provider Number"
+              invalid: "Enter a valid accredited provider Number"
             urn:
               blank: "Enter a unique reference number (URN)"
               invalid: "Enter a valid unique reference number (URN)"
diff --git a/spec/factories/providers.rb b/spec/factories/providers.rb
index 2727322b03..bdb69ac522 100644
--- a/spec/factories/providers.rb
+++ b/spec/factories/providers.rb
@@ -56,7 +56,7 @@
     trait :accredited_provider do
       provider_type { :university }
       accrediting_provider { 'Y' }
-      accredited_provider_id { Faker::Number.within(range: 1000..1999) }
+      accredited_provider_number { Faker::Number.within(range: 1000..1999) }
       urn { nil }
     end
 
diff --git a/spec/features/support/providers/editing_a_provider_spec.rb b/spec/features/support/providers/editing_a_provider_spec.rb
index eb748656bf..37a2f59702 100644
--- a/spec/features/support/providers/editing_a_provider_spec.rb
+++ b/spec/features/support/providers/editing_a_provider_spec.rb
@@ -18,7 +18,7 @@
       then_i_am_on_the_support_provider_edit_page
       when_i_fill_in_a_valid_provider_name
       and_i_choose_a_different_provider_type
-      and_i_fill_in_a_valid_id
+      and_i_fill_in_a_valid_number
       and_i_click_the_submit_button
       then_i_am_redirected_back_to_the_support_provider_show_page
       and_the_provider_details_are_updated
@@ -55,7 +55,7 @@
   private
 
   def and_there_is_a_provider
-    @provider = create(:provider, :accredited_provider, :scitt, provider_name: 'Provider 1', accredited_provider_id: 5432)
+    @provider = create(:provider, :accredited_provider, :scitt, provider_name: 'Provider 1', accredited_provider_number: 5432)
   end
 
   def when_i_visit_the_support_provider_show_page
@@ -96,8 +96,8 @@ def when_i_fill_in_a_valid_provider_name
     support_provider_edit_page.provider_name.set('Provider 2')
   end
 
-  def and_i_fill_in_a_valid_id
-    fill_in 'provider-accredited-provider-id-field', with: '1234'
+  def and_i_fill_in_a_valid_number
+    fill_in 'provider-accredited-provider-number-field', with: '1234'
   end
 
   def and_i_choose_a_different_provider_type
diff --git a/spec/features/support/providers/onboarding_a_new_provider_spec.rb b/spec/features/support/providers/onboarding_a_new_provider_spec.rb
index 8d10b16797..8926a1c3b0 100644
--- a/spec/features/support/providers/onboarding_a_new_provider_spec.rb
+++ b/spec/features/support/providers/onboarding_a_new_provider_spec.rb
@@ -159,12 +159,12 @@ def when_i_fill_in_a_valid_provider_details(provider_type:)
       fill_in 'Unique reference number (URN)', with: '54321'
     when :university
       choose 'Yes'
-      fill_in 'Accredited provider ID', with: '1111'
+      fill_in 'Accredited provider Number', with: '1111'
 
       choose 'Higher education institution (HEI)'
     when :scitt
       choose 'Yes'
-      fill_in 'Accredited provider ID', with: '5555'
+      fill_in 'Accredited provider Number', with: '5555'
 
       choose 'School centred initial teacher training (SCITT)'
     end
@@ -192,12 +192,12 @@ def and_the_provider_form_should_be_prefilled_with_the_provider_details(provider
       expect(page).to have_field('Unique reference number (URN)', with: '54321')
     when :university
       expect(page).to have_checked_field('Yes')
-      expect(page).to have_field('Accredited provider ID', with: '1111')
+      expect(page).to have_field('Accredited provider Number', with: '1111')
 
       expect(page).to have_checked_field('Higher education institution (HEI)')
     when :scitt
       expect(page).to have_checked_field('Yes')
-      expect(page).to have_field('Accredited provider ID', with: '5555')
+      expect(page).to have_field('Accredited provider Number', with: '5555')
 
       expect(page).to have_checked_field('School centred initial teacher training (SCITT)')
     end
diff --git a/spec/forms/support/provider_form_spec.rb b/spec/forms/support/provider_form_spec.rb
index 6469e6b037..09359b977c 100644
--- a/spec/forms/support/provider_form_spec.rb
+++ b/spec/forms/support/provider_form_spec.rb
@@ -12,7 +12,7 @@ module Support
     let(:params) do
       build(:provider).attributes.symbolize_keys.slice(
         :accrediting_provider,
-        :accredited_provider_id,
+        :accredited_provider_number,
         :provider_code,
         :provider_name,
         :provider_type,
@@ -127,7 +127,7 @@ module Support
           { accredited_provider: :accredited_provider }
         end
 
-        include_examples 'blank validation', :accredited_provider_id, 'Enter an accredited provider ID'
+        include_examples 'blank validation', :accredited_provider_number, 'Enter an accredited provider Number'
       end
 
       context 'urn set to invalid' do
@@ -190,42 +190,42 @@ module Support
         end
       end
 
-      shared_examples 'accredited provider id validation' do |provider_type, accredited_provider_id, message|
-        context "provider_type is set to '#{provider_type}' and accredited_provider_id is set to '#{accredited_provider_id}'" do
+      shared_examples 'accredited provider number validation' do |provider_type, accredited_provider_number, message|
+        context "provider_type is set to '#{provider_type}' and accredited_provider_number is set to '#{accredited_provider_number}'" do
           let(:params) do
             {
               provider_type:,
               accredited_provider: :accredited_provider,
-              accredited_provider_id:
+              accredited_provider_number:
             }
           end
 
-          it 'validates the accredited provider id' do
+          it 'validates the accredited provider number' do
             expect(subject).not_to be_valid
 
-            expect(subject.errors[:accredited_provider_id]).to match_array(message)
+            expect(subject.errors[:accredited_provider_number]).to match_array(message)
           end
         end
       end
 
-      blank_accredited_provider_id_message = 'Enter an accredited provider ID'
+      blank_accredited_provider_number_message = 'Enter an accredited provider Number'
 
-      [nil, ''].each do |blank_accredited_provider_id|
-        include_examples 'accredited provider id validation', nil, blank_accredited_provider_id, blank_accredited_provider_id_message
-        include_examples 'accredited provider id validation', :scitt, blank_accredited_provider_id, blank_accredited_provider_id_message
-        include_examples 'accredited provider id validation', :university, blank_accredited_provider_id, blank_accredited_provider_id_message
+      [nil, ''].each do |blank_accredited_provider_number|
+        include_examples 'accredited provider number validation', nil, blank_accredited_provider_number, blank_accredited_provider_number_message
+        include_examples 'accredited provider number validation', :scitt, blank_accredited_provider_number, blank_accredited_provider_number_message
+        include_examples 'accredited provider number validation', :university, blank_accredited_provider_number, blank_accredited_provider_number_message
       end
 
-      invalid_accredited_provider_id_message = 'Enter a valid accredited provider ID'
+      invalid_accredited_provider_number_message = 'Enter a valid accredited provider Number'
 
-      %w[a aaaa 12345 54321 abcde 1 5].each do |invalid_accredited_provider_id|
-        include_examples 'accredited provider id validation', nil, invalid_accredited_provider_id, invalid_accredited_provider_id_message
-        include_examples 'accredited provider id validation', :scitt, invalid_accredited_provider_id, invalid_accredited_provider_id_message
-        include_examples 'accredited provider id validation', :university, invalid_accredited_provider_id, invalid_accredited_provider_id_message
+      %w[a aaaa 12345 54321 abcde 1 5].each do |invalid_accredited_provider_number|
+        include_examples 'accredited provider number validation', nil, invalid_accredited_provider_number, invalid_accredited_provider_number_message
+        include_examples 'accredited provider number validation', :scitt, invalid_accredited_provider_number, invalid_accredited_provider_number_message
+        include_examples 'accredited provider number validation', :university, invalid_accredited_provider_number, invalid_accredited_provider_number_message
       end
 
-      include_examples 'accredited provider id validation', :scitt, '1234', invalid_accredited_provider_id_message
-      include_examples 'accredited provider id validation', :university, '5432', invalid_accredited_provider_id_message
+      include_examples 'accredited provider number validation', :scitt, '1234', invalid_accredited_provider_number_message
+      include_examples 'accredited provider number validation', :university, '5432', invalid_accredited_provider_number_message
     end
 
     describe '#stash' do
diff --git a/spec/validators/accredited_provider_id_format_validator_spec.rb b/spec/validators/accredited_provider_number_format_validator_spec.rb
similarity index 75%
rename from spec/validators/accredited_provider_id_format_validator_spec.rb
rename to spec/validators/accredited_provider_number_format_validator_spec.rb
index 59e6e98eda..3985e68c35 100644
--- a/spec/validators/accredited_provider_id_format_validator_spec.rb
+++ b/spec/validators/accredited_provider_number_format_validator_spec.rb
@@ -2,21 +2,21 @@
 
 require 'rails_helper'
 
-class AccreditedProviderIdFormatValidatorTest
+class AccreditedProviderNumberFormatValidatorTest
   include ActiveModel::Validations
 
-  attr_accessor :accredited_provider_id
+  attr_accessor :accredited_provider_number
 
-  validates :accredited_provider_id, accredited_provider_id_format: { allow_blank: false }
+  validates :accredited_provider_number, accredited_provider_number_format: { allow_blank: false }
 end
 
-describe AccreditedProviderIdFormatValidator do
+describe AccreditedProviderNumberFormatValidator do
   let(:accredited_provider) { create(:provider, :accredited_provider, :university) }
-  let(:accredited_provider_id) { 1234 }
+  let(:accredited_provider_number) { 1234 }
 
   let(:model) do
     model = accredited_provider
-    model.accredited_provider_id = accredited_provider_id
+    model.accredited_provider_number = accredited_provider_number
     model
   end
 
@@ -28,7 +28,7 @@ class AccreditedProviderIdFormatValidatorTest
     end
 
     context 'with a valid id starting with 5' do
-      let(:accredited_provider_id) { 5432 }
+      let(:accredited_provider_number) { 5432 }
 
       it 'does not add an error' do
         expect(model).not_to be_valid
@@ -46,7 +46,7 @@ class AccreditedProviderIdFormatValidatorTest
     end
 
     context 'with a valid id starting with 5' do
-      let(:accredited_provider_id) { 5432 }
+      let(:accredited_provider_number) { 5432 }
 
       it 'does not add an error' do
         expect(model).to be_valid
@@ -65,7 +65,7 @@ class AccreditedProviderIdFormatValidatorTest
     end
 
     context 'with a valid id starting with 5' do
-      let(:accredited_provider_id) { 5432 }
+      let(:accredited_provider_number) { 5432 }
 
       it 'adds provider_type error' do
         model.valid?