diff --git a/apps/edr-freight-api/src/modules/exports/datasets/invoices.dataset.ts b/apps/edr-freight-api/src/modules/exports/datasets/invoices.dataset.ts
index 3b897ef2d..59d6db4ca 100644
--- a/apps/edr-freight-api/src/modules/exports/datasets/invoices.dataset.ts
+++ b/apps/edr-freight-api/src/modules/exports/datasets/invoices.dataset.ts
@@ -2,6 +2,7 @@ import { FREIGHT_PERMS } from '../../../seed/freight-permissions.registry';
 import { Invoice } from '../../billing/entities/invoice.entity';
 import { invoicePaymentMethodExpr } from '../../billing/invoice-settlement.util';
 import { PaymentEntity } from '../../payment/entities/payment.entity';
+import { Booking } from '../../bookings/entities/booking.entity';
 import { Company } from '../../companies/entities/company.entity';
 import { CompanyProfile } from '../../companies/entities/company-profile.entity';
 import { ShippingLineCompany } from '../../shipping-lines/entities/shipping-line-company.entity';
@@ -34,6 +35,11 @@ export const invoicesDataset: ExportDataset = {
     // The gateway payment behind the invoice — provider method and its
     // transaction reference. Always joined: `scope()` filters on it.
     { alias: 'p', entity: PaymentEntity, on: 'p.id = i.payment_id' },
+    // Booking behind the invoice, for the PNR alone. `i.source_id` is a bare
+    // varchar pointer that is not always a UUID (EIMS self-test rows carry a
+    // slug), so the cast goes on `bk.id`, never on `source_id` — casting the
+    // other way throws on those rows.
+    { alias: 'bk', entity: Booking, on: "bk.id::text = i.source_id AND i.source = 'booking'" },
   ],
   alwaysJoin: ['c', 'p'],
 
@@ -76,6 +82,9 @@ export const invoicesDataset: ExportDataset = {
     { key: 'paidAt', label: 'Paid at', type: 'datetime', group: 'payment', select: `to_char(i.paid_at, 'YYYY-MM-DD HH24:MI')` },
     { key: 'paymentMethod', label: 'Payment method', type: 'string', group: 'payment', default: true, requires: ['p'], select: PAYMENT_METHOD, sortExpr: PAYMENT_METHOD },
     { key: 'transactionRef', label: 'Transaction ref', type: 'string', group: 'payment', requires: ['p'], select: 'p.transaction_id' },
+    // The CBE_BILL reference the customer pays against — stamped onto the
+    // booking at payment-initiation time, not held on the invoice or payment.
+    { key: 'pnrCode', label: 'PNR', type: 'string', group: 'payment', requires: ['bk'], select: 'bk.pnr_code' },
     { key: 'paymentStatus', label: 'Payment status', type: 'string', group: 'payment', requires: ['p'], select: 'p.status::text' },
     {
       key: 'daysOverdue', label: 'Days overdue', type: 'number', group: 'payment',
diff --git a/apps/edr-freight-web/backoffice/src/pages/invoices/InvoiceDetailPage.tsx b/apps/edr-freight-web/backoffice/src/pages/invoices/InvoiceDetailPage.tsx
index 0fa911485..def389687 100644
--- a/apps/edr-freight-web/backoffice/src/pages/invoices/InvoiceDetailPage.tsx
+++ b/apps/edr-freight-web/backoffice/src/pages/invoices/InvoiceDetailPage.tsx
@@ -145,6 +145,14 @@ function RecipientCard({ invoice }: { invoice: Invoice }) {
 function PaymentCard({ invoice }: { invoice: Invoice }) {
   const method = invoicePaymentMethod(invoice);
   const lastEntry = invoice.payments?.at(-1);
+  // The PNR is the CBE_BILL reference the customer pays against. It is stamped
+  // onto the BOOKING at payment-initiation time, not onto the invoice or the
+  // payment, so it has to be read back from there — same lookup the sealed PDF
+  // does. Shares react-query's cache with `SourceCard`, so this costs no
+  // second request.
+  const { data: booking } = useBookingDetail(
+    invoice.source === "booking" ? invoice.sourceId : undefined,
+  );
   if (!method && !lastEntry) return null;
 
   // The gateway's own reference first; `merchantOrderId` is our order id, which
@@ -163,6 +171,7 @@ function PaymentCard({ invoice }: { invoice: Invoice }) {
       name={method ? paymentMethodLabel(method) : "Settled"}
       rows={[
         { label: "Transaction ref", value: transactionRef },
+        { label: "PNR", value: booking?.pnrCode ?? undefined },
         { label: "Provider status", value: invoice.payment?.status },
         {
           label: "Paid",