diff --git a/library/src/main/java/org/mustangproject/Charge.java b/library/src/main/java/org/mustangproject/Charge.java
index cea018c1..ee32facc 100644
--- a/library/src/main/java/org/mustangproject/Charge.java
+++ b/library/src/main/java/org/mustangproject/Charge.java
@@ -24,6 +24,10 @@ public class Charge implements IZUGFeRDAllowanceCharge {
 	 * the absolute value if not percentage
 	 */
 	protected BigDecimal totalAmount;
+	/**
+	 * the value the percentage is applied upon
+	 */
+	protected BigDecimal basisAmount;
 	/**
 	 * the tax rate the charge belongs to
 	 */
@@ -104,6 +108,22 @@ public class Charge implements IZUGFeRDAllowanceCharge {
 	}
 
 
+	@Override
+	public BigDecimal getBasisAmount() {
+		return basisAmount;
+	}
+
+	/***
+	 * sets a potential basis for the potential percentage
+	 * @param basis the basis amount
+	 * @return fluid setter
+	 */
+	public Charge setBasisAmount(BigDecimal basis) {
+		this.basisAmount = basis;
+		return this;
+	}
+
+
 	@Override
 	public String getReasonCode() {
 		return reasonCode;
diff --git a/library/src/main/java/org/mustangproject/Item.java b/library/src/main/java/org/mustangproject/Item.java
index 956979fd..7549590a 100644
--- a/library/src/main/java/org/mustangproject/Item.java
+++ b/library/src/main/java/org/mustangproject/Item.java
@@ -97,7 +97,6 @@ public class Item implements IZUGFeRDExportableItem {
 			//icnm.getNode("AdditionalItemProperty").flatMap(n ->n.getAttributes()).ifPresent(product::setAttributes);
 
 
-
 			icnm.getAsNodeMap("ClassifiedTaxCategory").flatMap(m -> m.getAsBigDecimal("Percent"))
 				.ifPresent(product::setVATPercent);
 		});
@@ -119,7 +118,7 @@ public class Item implements IZUGFeRDExportableItem {
 		});
 
 		itemMap.getAllNodes("DocumentReference").map(ReferencedDocument::fromNode)
-				.forEach(this::addAdditionalReference);
+			.forEach(this::addAdditionalReference);
 
 		// ubl
 
@@ -136,8 +135,6 @@ public class Item implements IZUGFeRDExportableItem {
 			.ifPresent(this::addNote);
 
 
-
-
 		itemMap.getAsNodeMap("SpecifiedLineTradeAgreement", "SpecifiedSupplyChainTradeAgreement").ifPresent(icnm -> {
 			icnm.getAsNodeMap("BuyerOrderReferencedDocument")
 				.flatMap(bordNodes -> bordNodes.getAsString("LineID"))
@@ -178,24 +175,28 @@ public class Item implements IZUGFeRDExportableItem {
 				.ifPresent(product::setTaxExemptionReason);
 			icnm.getAllNodes("SpecifiedTradeAllowanceCharge").map(NodeMap::new).forEach(stac -> {
 				stac.getAsNodeMap("ChargeIndicator").ifPresent(ci -> {
-					String isChargeString=ci.getAsString("Indicator").get();
-					String percentString=stac.getAsStringOrNull("CalculationPercent");
-					String amountString=stac.getAsStringOrNull("ActualAmount");
-					String reason=stac.getAsStringOrNull("Reason");
-					Charge izac= new Charge();
+					String isChargeString = ci.getAsString("Indicator").get();
+					String percentString = stac.getAsStringOrNull("CalculationPercent");
+					String amountString = stac.getAsStringOrNull("ActualAmount");
+					String basisAmountString = stac.getAsStringOrNull("BasisAmount");
+					String reason = stac.getAsStringOrNull("Reason");
+					Charge izac = new Charge();
 					if (isChargeString.equalsIgnoreCase("false")) {
 						izac = new Allowance();
 					} else {
 						izac = new Charge();
 					}
-					if (amountString!=null) {
+					if (amountString != null) {
 						izac.setTotalAmount(new BigDecimal(amountString));
 					}
-					if(percentString!=null) {
-					izac.setPercent(new BigDecimal(percentString));
+					if (basisAmountString != null) {
+						izac.setBasisAmount(new BigDecimal(basisAmountString));
 					}
-					if(reason!=null) {
-					izac.setReason(reason);
+					if (percentString != null) {
+						izac.setPercent(new BigDecimal(percentString));
+					}
+					if (reason != null) {
+						izac.setReason(reason);
 					}
 
 					if (isChargeString.equalsIgnoreCase("false")) {
@@ -275,7 +276,7 @@ public class Item implements IZUGFeRDExportableItem {
 	}
 
 	public Item setNotesWithSubjectCode(List<IncludedNote> theList) {
-		includedNotes=theList;
+		includedNotes = theList;
 		return this;
 	}
 
@@ -373,18 +374,19 @@ public class Item implements IZUGFeRDExportableItem {
 	 * jackson convenience method
 	 */
 	public void setItemAllowances(ArrayList<Allowance> theAllowances) {
-		if (theAllowances!=null) {
+		if (theAllowances != null) {
 			Allowances.clear();
 			for (Allowance theAllowance : theAllowances) {
 				Allowances.add(theAllowance);
 			}
 		}
 	}
+
 	/***
 	 * jackson convenience method
 	 */
 	public void setItemCharges(ArrayList<Charge> theCharges) {
-		if (theCharges!=null) {
+		if (theCharges != null) {
 			Charges.clear();
 			for (Charge theCharge : theCharges) {
 				Charges.add(theCharge);
diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDAllowanceCharge.java b/library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDAllowanceCharge.java
index 0c61ba5b..bcdab413 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDAllowanceCharge.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDAllowanceCharge.java
@@ -38,6 +38,12 @@ public interface IZUGFeRDAllowanceCharge {
 	 */
 	default BigDecimal getPercent() {return null;}
 
+	/***
+	 * returns a basis the precentage is calculated from
+	 * @return null or the basis
+	 */
+	default BigDecimal getBasisAmount() {return null;}
+
 	/***
 	 * get a description for the allowance/charge
 	 * @return the description
diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDInvoiceImporter.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDInvoiceImporter.java
index 3015f91c..699dc4f3 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDInvoiceImporter.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDInvoiceImporter.java
@@ -962,6 +962,7 @@ public class ZUGFeRDInvoiceImporter {
 				NodeList chargeNodeChilds = chargeNodes.item(i).getChildNodes();
 				boolean isCharge = true;
 				String chargeAmount = null;
+				String basisAmount = null;
 				String reason = null;
 				String reasonCode = null;
 				String taxPercent = null;
@@ -989,6 +990,8 @@ public class ZUGFeRDInvoiceImporter {
 
 						} else if (chargeChildName.equals("ActualAmount") || chargeChildName.equals("Amount")) {
 							chargeAmount = XMLTools.trimOrNull(chargeNodeChilds.item(chargeChildIndex));
+						} else if (chargeChildName.equals("BasisAmount"))  {
+							basisAmount = XMLTools.trimOrNull(chargeNodeChilds.item(chargeChildIndex));
 						} else if (chargeChildName.equals("Reason") || chargeChildName.equals("AllowanceChargeReason")) {
 							reason = XMLTools.trimOrNull(chargeNodeChilds.item(chargeChildIndex));
 						} else if (chargeChildName.equals("ReasonCode") || chargeChildName.equals("AllowanceChargeReasonCode")) {
@@ -1016,6 +1019,9 @@ public class ZUGFeRDInvoiceImporter {
 					if (taxPercent != null) {
 						c.setTaxPercent(new BigDecimal(taxPercent));
 					}
+					if (basisAmount != null) {
+						c.setBasisAmount(new BigDecimal(basisAmount));
+					}
 					zpp.addCharge(c);
 				} else {
 					Allowance a = new Allowance(new BigDecimal(chargeAmount));
@@ -1028,6 +1034,9 @@ public class ZUGFeRDInvoiceImporter {
 					if (taxPercent != null) {
 						a.setTaxPercent(new BigDecimal(taxPercent));
 					}
+					if (basisAmount != null) {
+						a.setBasisAmount(new BigDecimal(basisAmount));
+					}
 					zpp.addAllowance(a);
 				}