diff --git a/app/forms/state_file/nc_sales_use_tax_form.rb b/app/forms/state_file/nc_sales_use_tax_form.rb
index d5b622f7ae..9d219e2d12 100644
--- a/app/forms/state_file/nc_sales_use_tax_form.rb
+++ b/app/forms/state_file/nc_sales_use_tax_form.rb
@@ -22,7 +22,7 @@ def initialize(intake = nil, params = nil)
         params[:sales_use_tax] = nil
       end
       if params[:sales_use_tax_calculation_method] == "automated"
-        params[:sales_use_tax] = intake.calculate_sales_use_tax
+        params[:sales_use_tax] = intake.calculate_sales_use_tax(automated: true)
       end
       super(intake, params)
     end
@@ -33,4 +33,4 @@ def save
       @intake.update!(attributes)
     end
   end
-end
\ No newline at end of file
+end
diff --git a/app/models/state_file_nc_intake.rb b/app/models/state_file_nc_intake.rb
index d4c9901b6a..9593755efb 100644
--- a/app/models/state_file_nc_intake.rb
+++ b/app/models/state_file_nc_intake.rb
@@ -114,9 +114,13 @@ def sanitize_county_details
     end
   end
 
-  def calculate_sales_use_tax
-    nc_taxable_income = calculator.lines[:NCD400_LINE_14].value
-    calculator.calculate_use_tax(nc_taxable_income)
+  def calculate_sales_use_tax(automated: false)
+    if automated
+      calculator.line_or_zero(:NCD400_LINE_18)
+    else
+      nc_taxable_income = calculator.lines[:NCD400_LINE_14].value
+      calculator.calculate_use_tax(nc_taxable_income)
+    end
   end
 
   def disaster_relief_county
diff --git a/app/views/state_file/questions/nc_review/edit.html.erb b/app/views/state_file/questions/nc_review/edit.html.erb
index 8cdf96f94c..5064b9ca5f 100644
--- a/app/views/state_file/questions/nc_review/edit.html.erb
+++ b/app/views/state_file/questions/nc_review/edit.html.erb
@@ -85,7 +85,7 @@
       <p class="text--bold spacing-below-5"><%=t(".use_tax_applied", filing_year: current_tax_year) %></p>
       <p><%=current_intake.untaxed_out_of_state_purchases_yes? ? t("general.affirmative") : t("general.negative") %></p>
       <% if current_intake.untaxed_out_of_state_purchases_yes? %>
-        <p class="text--bold spacing-below-5"><%=t(".use_tax_amount") %></p>
+        <p id="use-tax-amount" class="text--bold spacing-below-5"><%=t(".use_tax_amount") %></p>
         <p><%=number_to_currency(current_intake.sales_use_tax, precision: 2)%></p>
       <% end %>
       <%= link_to t("general.edit"), StateFile::Questions::NcSalesUseTaxController.to_path_helper(return_to_review: "y"), class: "button--small" %>
diff --git a/spec/features/state_file/complete_intake_spec.rb b/spec/features/state_file/complete_intake_spec.rb
index 18893b99f8..ffb20613ff 100644
--- a/spec/features/state_file/complete_intake_spec.rb
+++ b/spec/features/state_file/complete_intake_spec.rb
@@ -316,6 +316,99 @@
       expect(submission.submission_bundle).to be_present
       expect(submission.current_state).to eq("queued")
     end
+
+    it "properly calculates the sales/use tax", required_schema: "nc" do
+      visit "/"
+      click_on "Start Test NC"
+
+      expect(page).to have_text I18n.t("state_file.landing_page.edit.nc.title")
+      click_on I18n.t('general.get_started'), id: "firstCta"
+
+      step_through_eligibility_screener(us_state: "nc")
+
+      step_through_initial_authentication(contact_preference: :email)
+
+      check "Email"
+      check "Text message"
+      fill_in "Your phone number", with: "+12025551212"
+      click_on "Continue"
+
+      click_on I18n.t("general.accept")
+      click_on I18n.t("state_file.questions.terms_and_conditions.edit.accept")
+
+      step_through_df_data_transfer("Transfer Bert 1099 r")
+
+      select("Buncombe", from: "County")
+      click_on I18n.t("general.continue")
+
+      choose "state_file_nc_veteran_status_form_primary_veteran_no"
+      choose "state_file_nc_veteran_status_form_spouse_veteran_no"
+      click_on I18n.t("general.continue")
+
+
+      expect(page).to have_text I18n.t("state_file.questions.nc_sales_use_tax.edit.title.other", year: filing_year, count: 2)
+
+      choose I18n.t("general.affirmative")
+      choose "state_file_nc_sales_use_tax_form_sales_use_tax_calculation_method_automated"
+      click_on I18n.t("general.continue")
+
+      # Of the 4 buttons on this page, select the first button that says "Review and edit state info"
+      click_on I18n.t("state_file.questions.income_review.edit.review_and_edit_state_info"), match: :first
+
+      # take a screenshot
+
+
+      click_on I18n.t("general.continue")
+
+
+      click_on I18n.t("state_file.questions.income_review.edit.review_and_edit_state_info"), match: :first
+      expect(page).to have_text(strip_html_tags(I18n.t("state_file.questions.retirement_income.edit.title_html", payer_name: "Elmo Retirement Ltd")))
+
+
+      click_on I18n.t("general.continue")
+
+
+
+      click_on I18n.t("general.continue")
+      choose strip_html_tags(I18n.t("state_file.questions.nc_retirement_income_subtraction.edit.income_source_bailey_settlement_html"))
+      check I18n.t("state_file.questions.nc_retirement_income_subtraction.edit.other")
+      click_on I18n.t("general.continue")
+      choose I18n.t("state_file.questions.nc_retirement_income_subtraction.edit.other")
+      click_on I18n.t("general.continue")
+      choose I18n.t("state_file.questions.nc_retirement_income_subtraction.edit.other")
+      click_on I18n.t("general.continue")
+      choose I18n.t("state_file.questions.nc_retirement_income_subtraction.edit.other")
+      click_on I18n.t("general.continue")
+
+
+      choose I18n.t("general.negative")
+      click_on I18n.t("general.continue")
+
+      page.save_screenshot("nc_sales_use_tax_5.png")
+
+      click_on I18n.t("general.continue")
+
+      expect(page).to have_text I18n.t("state_file.questions.primary_state_id.state_id.id_type_question.label")
+      choose I18n.t("state_file.questions.primary_state_id.state_id.id_type_question.drivers_license")
+      fill_in "state_file_primary_state_id_form_id_number", with: "123456789"
+      select_cfa_date "state_file_primary_state_id_form_issue_date", Date.new(2020, 1, 1)
+      check "state_file_primary_state_id_form_non_expiring"
+      select("Alaska", from: "State")
+      click_on I18n.t("general.continue")
+
+      expect(page).to have_text I18n.t("state_file.questions.primary_state_id.state_id.id_type_question.label")
+      choose I18n.t("state_file.questions.primary_state_id.state_id.id_type_question.drivers_license")
+      fill_in "state_file_spouse_state_id_form_id_number", with: "123456789"
+      select_cfa_date "state_file_spouse_state_id_form_issue_date", Date.new(2020, 1, 1)
+      check "state_file_spouse_state_id_form_non_expiring"
+      select("Alaska", from: "State")
+      click_on I18n.t("general.continue")
+
+      expect(page).to have_text I18n.t("state_file.questions.shared.abstract_review_header.title")
+      click_on I18n.t("general.continue")
+
+      expect(page).to have_css("#use-text-amount", text: "$11.00")
+    end
   end
 
   context "ID", :flow_explorer_screenshot do
diff --git a/spec/models/state_file_nc_intake_spec.rb b/spec/models/state_file_nc_intake_spec.rb
index b2bb4e5871..ceb03fc93c 100644
--- a/spec/models/state_file_nc_intake_spec.rb
+++ b/spec/models/state_file_nc_intake_spec.rb
@@ -96,6 +96,15 @@
       allow(intake.calculator.lines).to receive(:[]).with(:NCD400_LINE_14).and_return(double(value: 2500))
       expect(intake.calculate_sales_use_tax).to eq 2
     end
+
+    context "when automated retirement income is present" do
+      let(:intake) { build :state_file_nc_intake }
+
+      it "calculates the sales use tax using the automated retirement income" do
+        allow(intake.calculator).to receive(:line_or_zero).with(:NCD400_LINE_18).and_return(11)
+        expect(intake.calculate_sales_use_tax(automated: true)).to eq 11
+      end
+    end
   end
 
   describe "#sanitize_county_details" do