diff --git a/app/controllers/idv/gpo_controller.rb b/app/controllers/idv/gpo_controller.rb
index 39679384683..01d07a7d06a 100644
--- a/app/controllers/idv/gpo_controller.rb
+++ b/app/controllers/idv/gpo_controller.rb
@@ -37,6 +37,7 @@ def gpo_mail_service
 
     def update_tracking
       analytics.idv_gpo_address_letter_requested(resend: resend_requested?)
+      irs_attempts_api_tracker.idv_letter_requested(success: true, resend: resend_requested?)
       create_user_event(:gpo_mail_sent, current_user)
 
       ProofingComponent.create_or_find_by(user: current_user).update(address_check: 'gpo_letter')
diff --git a/app/services/irs_attempts_api/tracker_events.rb b/app/services/irs_attempts_api/tracker_events.rb
index d08b336f988..cc8e585986b 100644
--- a/app/services/irs_attempts_api/tracker_events.rb
+++ b/app/services/irs_attempts_api/tracker_events.rb
@@ -150,6 +150,17 @@ def idv_document_upload_rate_limited
       )
     end
 
+    # @param [Boolean] success
+    # @param [String] resend
+    # The Address validation letter has been requested by user
+    def idv_letter_requested(success:, resend:)
+      track_event(
+        :idv_letter_requested,
+        success: success,
+        resend: resend,
+      )
+    end
+
     # @param [Boolean] success
     # @param [String] phone_number
     # The phone upload link was sent during the IDV process
diff --git a/spec/controllers/idv/gpo_controller_spec.rb b/spec/controllers/idv/gpo_controller_spec.rb
index 8e15a7240cc..c3771ccf1f7 100644
--- a/spec/controllers/idv/gpo_controller_spec.rb
+++ b/spec/controllers/idv/gpo_controller_spec.rb
@@ -4,6 +4,7 @@
   let(:user) { create(:user) }
 
   before { stub_analytics }
+  before { stub_attempts_tracker }
 
   describe 'before_actions' do
     it 'includes authentication before_action' do
@@ -81,6 +82,13 @@
         expect(response).to redirect_to idv_review_path
         expect(subject.idv_session.address_verification_mechanism).to eq :gpo
       end
+
+      it 'logs attempts api tracking' do
+        expect(@irs_attempts_api_tracker).to receive(:idv_letter_requested).
+          with(success: true, resend: false)
+
+        put :create
+      end
     end
 
     context 'resending a letter' do
@@ -102,6 +110,13 @@
         expect_resend_letter_to_send_letter_and_redirect(otp: true)
       end
 
+      it 'logs attempts api tracking' do
+        expect(@irs_attempts_api_tracker).to receive(:idv_letter_requested).
+          with(success: true, resend: true)
+
+        put :create
+      end
+
       it 'redirects to capture password if pii is locked' do
         pii_cacher = instance_double(Pii::Cacher)
         allow(pii_cacher).to receive(:fetch).and_return(nil)