diff --git a/app/Helpers/Invoice/InvoiceSum.php b/app/Helpers/Invoice/InvoiceSum.php
index d6379356cd11..e1ae39609d80 100644
--- a/app/Helpers/Invoice/InvoiceSum.php
+++ b/app/Helpers/Invoice/InvoiceSum.php
@@ -250,6 +250,7 @@ class InvoiceSum
             }
         }
         /* Set new calculated total */
+        /** @todo - rappen rounding here */
         $this->invoice->amount = $this->formatValue($this->getTotal(), $this->precision);
 
         $this->invoice->total_taxes = $this->getTotalTaxes();
diff --git a/app/Helpers/Invoice/InvoiceSumInclusive.php b/app/Helpers/Invoice/InvoiceSumInclusive.php
index 3786b55f99e6..13ebf8940924 100644
--- a/app/Helpers/Invoice/InvoiceSumInclusive.php
+++ b/app/Helpers/Invoice/InvoiceSumInclusive.php
@@ -268,6 +268,7 @@ class InvoiceSumInclusive
         }
 
         /* Set new calculated total */
+        /** @todo - rappen rounding here */
         $this->invoice->amount = $this->formatValue($this->getTotal(), $this->precision);
 
         $this->invoice->total_taxes = $this->getTotalTaxes();