diff --git a/library/src/main/java/org/mustangproject/DirectDebit.java b/library/src/main/java/org/mustangproject/DirectDebit.java
index 59da5b42..86937a0f 100644
--- a/library/src/main/java/org/mustangproject/DirectDebit.java
+++ b/library/src/main/java/org/mustangproject/DirectDebit.java
@@ -24,7 +24,8 @@ public class DirectDebit implements IZUGFeRDTradeSettlementDebit {
 	 * bean constructor
 	 */
 	public DirectDebit() {
-
+		this.IBAN = "";
+		this.mandate = "";
 	}
 
 	/***
diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/LineCalculator.java b/library/src/main/java/org/mustangproject/ZUGFeRD/LineCalculator.java
index f3e8aa2d..2f997991 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/LineCalculator.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/LineCalculator.java
@@ -44,10 +44,14 @@ public class LineCalculator {
 		BigDecimal multiplicator = vatPercent.divide(BigDecimal.valueOf(100));
 		priceGross = currentItem.getPrice(); // see https://github.com/ZUGFeRD/mustangproject/issues/159
 		price = priceGross.subtract(allowance).add(charge);
-		itemTotalNetAmount = currentItem.getQuantity().multiply(getPrice()).divide(currentItem.getBasisQuantity(), 18, RoundingMode.HALF_UP)
+		// Division/Zero occurred here.
+		// Used the setScale only because that's also done in getBasisQuantity
+		BigDecimal basisQuantity = currentItem.getBasisQuantity().compareTo(BigDecimal.ZERO) == 0
+			? BigDecimal.ONE.setScale(4)
+			: currentItem.getBasisQuantity();
+		itemTotalNetAmount = currentItem.getQuantity().multiply(getPrice()).divide(basisQuantity, 18, RoundingMode.HALF_UP)
 				.subtract(allowanceItemTotal).setScale(2, RoundingMode.HALF_UP);
 		itemTotalVATAmount = itemTotalNetAmount.multiply(multiplicator);
-
 	}
 
 	public BigDecimal getPrice() {
diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDImporter.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDImporter.java
index 91f86690..da2c8792 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDImporter.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDImporter.java
@@ -743,6 +743,15 @@ public class ZUGFeRDImporter extends ZUGFeRDInvoiceImporter {
 								node = getNodeByName(node.getChildNodes(), "CalculatedAmount");
 								lineItem.setTax(XMLTools.tryBigDecimal(node));
 							}
+
+							node = getNodeByName(nn.getChildNodes(), "ApplicableTradeTax");
+							if (node != null) {
+								node = getNodeByName(node.getChildNodes(), "CategoryCode");
+								if(node != null){
+									lineItem.getProduct().setTaxCategoryCode(XMLTools.getNodeValue(node));
+								}
+							}
+
 							node = getNodeByName(nn.getChildNodes(), "BillingSpecifiedPeriod");
 							if (node != null) {
 								final Node start = getNodeByName(node.getChildNodes(), "StartDateTime");