diff --git a/src/routes/invoices.$invoiceId.tsx b/src/routes/invoices.$invoiceId.tsx
index 9e4c6ef..d12784c 100644
--- a/src/routes/invoices.$invoiceId.tsx
+++ b/src/routes/invoices.$invoiceId.tsx
@@ -245,6 +245,11 @@ function InvoiceDetail() {
         total: Number(invoice.total),
         paid: Number(invoice.amount_paid),
         balance,
+        taxRatePct:
+          Number(invoice.subtotal) > 0
+            ? Math.round((Number(invoice.tax) / Number(invoice.subtotal)) * 10000) / 100
+            : 0,
+        feesAndExpenses: Number(invoice.subtotal),
       },
     };
     await downloadInvoicePdf(input, `${invoice.invoice_number}.pdf`);