diff --git a/app/services/idv/inherited_proofing/va/mocks/service.rb b/app/services/idv/inherited_proofing/va/mocks/service.rb
new file mode 100644
index 00000000000..0358b2c961f
--- /dev/null
+++ b/app/services/idv/inherited_proofing/va/mocks/service.rb
@@ -0,0 +1,54 @@
+module Idv
+  module InheritedProofing
+    module Va
+      module Mocks
+        class Service
+          VALID_AUTH_CODE = 'mocked-auth-code-for-testing'.freeze
+
+          attr_reader :auth_code
+
+          PAYLOAD_HASH = {
+            first_name: 'Fakey',
+            last_name: 'Fakerson',
+            address: {
+              street: '123 Fake St',
+              street2: 'Apt 235',
+              city: 'Faketown',
+              state: 'WA',
+              country: nil,
+              zip: '98037',
+            },
+            phone: '2063119187',
+            birth_date: '2022-1-31',
+            ssn: '123456789',
+            mhv_data: {
+              mhvId: 99999999,
+              identityProofedMethod: 'IPA',
+              identityDocumentExist: true,
+              identityProofingDate: '2020-12-14',
+              identityDocumentInfo: {
+                primaryIdentityDocumentNumber: '88888888',
+                primaryIdentityDocumentType: 'StateIssuedId',
+                primaryIdentityDocumentCountry: 'United States',
+                primaryIdentityDocumentExpirationDate: '2222-03-30',
+              },
+            },
+          }.freeze
+
+          def initialize(auth_code)
+            @auth_code = auth_code
+          end
+
+          def execute
+            if (@auth_code != VALID_AUTH_CODE)
+              raise TypeError,
+                    "auth_code is invalid: #{@auth_code}"
+            end
+
+            PAYLOAD_HASH
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/features/services/idv/inherited_proofing/va/mocks/service_spec.rb b/spec/features/services/idv/inherited_proofing/va/mocks/service_spec.rb
new file mode 100644
index 00000000000..7e44e984fdb
--- /dev/null
+++ b/spec/features/services/idv/inherited_proofing/va/mocks/service_spec.rb
@@ -0,0 +1,14 @@
+require 'rails_helper'
+
+RSpec.describe 'Inherited Proofing VA API Proofer Service' do
+  subject(:form) { Idv::InheritedProofing::Va::Form.new(payload_hash: proofer_results) }
+
+  let(:proofer_results) { Idv::InheritedProofing::Va::Mocks::Service.new(auth_code).execute }
+  let(:auth_code) { Idv::InheritedProofing::Va::Mocks::Service::VALID_AUTH_CODE }
+
+  context 'when used with the VA Inherited Proofing Response Form' do
+    it 'works as expected' do
+      expect(form.submit.success?).to eq true
+    end
+  end
+end
diff --git a/spec/services/idv/inherited_proofing/va/mocks/service_spec.rb b/spec/services/idv/inherited_proofing/va/mocks/service_spec.rb
new file mode 100644
index 00000000000..83a88234723
--- /dev/null
+++ b/spec/services/idv/inherited_proofing/va/mocks/service_spec.rb
@@ -0,0 +1,28 @@
+require 'rails_helper'
+
+RSpec.describe Idv::InheritedProofing::Va::Mocks::Service do
+  subject { described_class.new(auth_code) }
+  let(:auth_code) { described_class::VALID_AUTH_CODE }
+
+  describe '#initialize' do
+    it 'sets #auth_code' do
+      expect(subject.auth_code).to eq auth_code
+    end
+  end
+
+  describe '#execute' do
+    context 'when auth_code is valid' do
+      it 'returns a Hash' do
+        expect(subject.execute).to eq(described_class::PAYLOAD_HASH)
+      end
+    end
+
+    context 'with auth code is invalid' do
+      let(:auth_code) { "invalid-#{described_class::VALID_AUTH_CODE}" }
+
+      it 'returns an error' do
+        expect { subject.execute }.to raise_error(/auth_code is invalid/)
+      end
+    end
+  end
+end