diff --git a/app/forms/journeys/early_years_payment/practitioner/find_reference_form.rb b/app/forms/journeys/early_years_payment/practitioner/find_reference_form.rb
index 89f7055c1f..02d60c8c4e 100644
--- a/app/forms/journeys/early_years_payment/practitioner/find_reference_form.rb
+++ b/app/forms/journeys/early_years_payment/practitioner/find_reference_form.rb
@@ -10,23 +10,19 @@ class FindReferenceForm < Form
         def save
           return false if invalid?
 
+          existing_claim = Claim
+            .by_policy(Policies::EarlyYearsPayments)
+            .find_by(reference: reference_number, practitioner_email_address: email)
+
           journey_session.answers.assign_attributes(
             reference_number:,
             start_email: email,
-            reference_number_found: claim_exists?
+            reference_number_found: existing_claim.present?,
+            claim_already_submitted: existing_claim&.submitted?,
+            nursery_name: existing_claim&.eligibility&.eligible_ey_provider&.nursery_name
           )
           journey_session.save!
         end
-
-        private
-
-        def claim_exists?
-          Claim
-            .by_policy(Policies::EarlyYearsPayments)
-            .where(reference: reference_number)
-            .where(practitioner_email_address: email)
-            .exists?
-        end
       end
     end
   end
diff --git a/app/models/journeys/early_years_payment/practitioner/session_answers.rb b/app/models/journeys/early_years_payment/practitioner/session_answers.rb
index 2415e58378..45963da9de 100644
--- a/app/models/journeys/early_years_payment/practitioner/session_answers.rb
+++ b/app/models/journeys/early_years_payment/practitioner/session_answers.rb
@@ -4,6 +4,8 @@ module Practitioner
       class SessionAnswers < Journeys::SessionAnswers
         attribute :reference_number, :string
         attribute :reference_number_found, :boolean, default: nil
+        attribute :claim_already_submitted, :boolean, default: nil
+        attribute :nursery_name
         attribute :start_email, :string
 
         def policy
diff --git a/app/models/policies/early_years_payments/policy_eligibility_checker.rb b/app/models/policies/early_years_payments/policy_eligibility_checker.rb
index 67f5908415..859a932a8f 100644
--- a/app/models/policies/early_years_payments/policy_eligibility_checker.rb
+++ b/app/models/policies/early_years_payments/policy_eligibility_checker.rb
@@ -48,6 +48,8 @@ def practitioner_ineligibility_reason
 
         if answers.reference_number_found == false
           :reference_number_not_found
+        elsif answers.claim_already_submitted == true
+          :claim_already_submitted
         end
       end
 
diff --git a/app/views/early_years_payment/practitioner/claims/_ineligibility_claim_already_submitted.html.erb b/app/views/early_years_payment/practitioner/claims/_ineligibility_claim_already_submitted.html.erb
new file mode 100644
index 0000000000..65096ee4ad
--- /dev/null
+++ b/app/views/early_years_payment/practitioner/claims/_ineligibility_claim_already_submitted.html.erb
@@ -0,0 +1,28 @@
+<% content_for(:page_title, page_title("You've already submitted your claim", journey: current_journey_routing_name)) %>
+<% @backlink_path = claim_path(current_journey_routing_name, "find-reference", request.query_parameters) %>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds">
+    <h1 class="govuk-heading-l">
+      You've already submitted your claim
+    </h1>
+
+    <p class="govuk-body">
+      We're reviewing your application and we'll let you know by email if it's accepted or rejected.
+    </p>
+
+    <p class="govuk-body">
+      After 6 months in your role, we'll check that you’re still working at <%= answers.nursery_name %>. If you are:
+    </p>
+
+    <ul class="govuk-list govuk-list--bullet">
+      <li>we’ll pay the full incentive amount into your bank account</li>
+      <li>email you to confirm the payment</li>
+    </ul>
+
+    <p class="govuk-body">
+      If you have questions or need support with this claim, email
+      <%= govuk_link_to t("early_years_payment_practitioner.feedback_email"), "mailto:#{t("early_years_payment_practitioner.feedback_email")}", no_visited_state: true %>
+    </p>
+  </div>
+</div>
diff --git a/spec/factories/journeys/early_years_payment/provider/authenticated/early_years_practitioner_answers.rb b/spec/factories/journeys/early_years_payment/provider/authenticated/early_years_practitioner_answers.rb
new file mode 100644
index 0000000000..8bdf78a187
--- /dev/null
+++ b/spec/factories/journeys/early_years_payment/provider/authenticated/early_years_practitioner_answers.rb
@@ -0,0 +1,4 @@
+FactoryBot.define do
+  factory :early_years_practitioner_answers, class: "Journeys::EarlyYearsPayment::Practitioner::SessionAnswers" do
+  end
+end
diff --git a/spec/features/early_years_payment/practitioner/find_reference_spec.rb b/spec/features/early_years_payment/practitioner/find_reference_spec.rb
index fd3c9be9dd..99af7c0ae9 100644
--- a/spec/features/early_years_payment/practitioner/find_reference_spec.rb
+++ b/spec/features/early_years_payment/practitioner/find_reference_spec.rb
@@ -58,4 +58,34 @@
 
     expect(page).to have_content "Enter your claim reference"
   end
+
+  context "when the claim is already submitted" do
+    let(:eligible_ey_provider) { create(:eligible_ey_provider, nursery_name: "Test Nursery") }
+
+    let(:claim) do
+      create(
+        :claim,
+        :submitted,
+        policy: Policies::EarlyYearsPayments,
+        eligibility: build(:early_years_payments_eligibility, nursery_urn: eligible_ey_provider.urn),
+        reference: "foo",
+        practitioner_email_address: "user@example.com"
+      )
+    end
+
+    scenario "should show ineligibility page when a submitted claim reference is given" do
+      when_early_years_payment_practitioner_journey_configuration_exists
+
+      visit "/early-years-payment-practitioner/find-reference?skip_landing_page=true&email=user@example.com"
+      expect(page).to have_content "Enter your claim reference"
+      fill_in "Claim reference number", with: claim.reference
+      click_button "Submit"
+
+      expect(page).to have_content "You've already submitted your claim"
+      expect(page).to have_content "After 6 months in your role, we'll check that you’re still working at Test Nursery."
+
+      click_link "Back"
+      expect(page).to have_content "Enter your claim reference"
+    end
+  end
 end
diff --git a/spec/forms/journeys/early_years_payment/practitioner/find_reference_form_spec.rb b/spec/forms/journeys/early_years_payment/practitioner/find_reference_form_spec.rb
index b78fc4e50c..dbe109f70b 100644
--- a/spec/forms/journeys/early_years_payment/practitioner/find_reference_form_spec.rb
+++ b/spec/forms/journeys/early_years_payment/practitioner/find_reference_form_spec.rb
@@ -9,6 +9,8 @@
   let(:reference_number) { nil }
   let(:email) { nil }
 
+  let(:eligible_ey_provider) { create(:eligible_ey_provider) }
+
   let(:params) do
     ActionController::Parameters.new(claim: {reference_number:, email:})
   end
@@ -48,6 +50,7 @@
       create(
         :claim,
         policy: Policies::EarlyYearsPayments,
+        eligibility: build(:early_years_payments_eligibility, nursery_urn: eligible_ey_provider.urn),
         reference: "foo"
       )
     end
@@ -64,6 +67,30 @@
       }.to change { journey_session.reload.answers.reference_number_found }.from(nil).to(true)
     end
 
+    it "updates nursery_name in session" do
+      expect {
+        subject.save
+      }.to change { journey_session.reload.answers.nursery_name }.from(nil).to(eligible_ey_provider.nursery_name)
+    end
+
+    context "when the claim is already submitted" do
+      let(:claim) do
+        create(
+          :claim,
+          :submitted,
+          policy: Policies::EarlyYearsPayments,
+          eligibility: build(:early_years_payments_eligibility, nursery_urn: eligible_ey_provider.urn),
+          reference: "foo"
+        )
+      end
+
+      it "updates claim_already_submitted in session" do
+        expect {
+          subject.save
+        }.to change { journey_session.reload.answers.claim_already_submitted }.from(nil).to(true)
+      end
+    end
+
     context "when reference is a random string" do
       let(:reference_number) { "foo" }
 
diff --git a/spec/models/policies/early_years_payments/policy_eligibility_checker_spec.rb b/spec/models/policies/early_years_payments/policy_eligibility_checker_spec.rb
index 23fe365f52..1c8d494816 100644
--- a/spec/models/policies/early_years_payments/policy_eligibility_checker_spec.rb
+++ b/spec/models/policies/early_years_payments/policy_eligibility_checker_spec.rb
@@ -84,5 +84,35 @@
         expect(subject.ineligibility_reason).to eql(:nursery_is_not_listed)
       end
     end
+
+    context "when ineligible as :reference_number_not_found" do
+      let(:answers) do
+        build(
+          :early_years_practitioner_answers,
+          reference_number_found: false
+        )
+      end
+
+      it "is ineligble as :reference_number_not_found" do
+        expect(subject).to be_ineligible
+        expect(subject.status).to eql(:ineligible)
+        expect(subject.ineligibility_reason).to eql(:reference_number_not_found)
+      end
+    end
+
+    context "when ineligible as :claim_already_submitted" do
+      let(:answers) do
+        build(
+          :early_years_practitioner_answers,
+          claim_already_submitted: true
+        )
+      end
+
+      it "is ineligble as :claim_already_submitted" do
+        expect(subject).to be_ineligible
+        expect(subject.status).to eql(:ineligible)
+        expect(subject.ineligibility_reason).to eql(:claim_already_submitted)
+      end
+    end
   end
 end