diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
index f3709e01..a5f1ff17 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
@@ -516,6 +516,18 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 						+ "</ram:RateApplicablePercent>\n" + "			</ram:ApplicableTradeTax>\n"; //$NON-NLS-2$
 
 			}
+		}
+		if ((trans.getOccurrencePeriodFrom()!=null) || (trans.getOccurrencePeriodTo()!=null)) {
+			xml=xml+"<ram:BillingSpecifiedPeriod>";
+			if (trans.getOccurrencePeriodFrom()!=null) {
+				xml=xml+"<ram:StartDateTime><udt:DateTimeString format='102'>"+zugferdDateFormat.format(trans.getOccurrencePeriodFrom())+"</udt:DateTimeString></ram:StartDateTime>";
+			}
+			if (trans.getOccurrencePeriodTo()!=null) {
+				xml=xml+"<ram:EndDateTime><udt:DateTimeString format='102'>"+zugferdDateFormat.format(trans.getOccurrencePeriodTo())+"</udt:DateTimeString></ram:EndDateTime>";
+			}
+			xml=xml+"</ram:BillingSpecifiedPeriod>";
+
+
 		}
 
 			if ((trans.getZFCharges()!=null)&&(trans.getZFCharges().length>0)) {
diff --git a/library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java b/library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java
index c0bb2fce..44df2614 100644
--- a/library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java
+++ b/library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java
@@ -22,6 +22,8 @@ package org.mustangproject.ZUGFeRD;
 import java.io.IOException;
 import java.io.InputStream;
 import java.math.BigDecimal;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.util.Date;
 
 import org.mustangproject.*;
@@ -54,10 +56,15 @@ public class ZF2PushTest extends TestCase {
 					 .setCreator(System.getProperty("user.name")).setZUGFeRDVersion(2).ignorePDFAErrors()
 					 .load(SOURCE_PDF)) {
 
-			ze.setTransaction(new Invoice().setDueDate(new Date()).setIssueDate(new Date()).setDeliveryDate(new Date()).setContractReferencedDocument("0815").setSender(new TradeParty(orgname,"teststr", "55232","teststadt","DE").addBankDetails(new BankDetails("777666555","DE4321"))).setOwnTaxID("4711").setOwnVATID("DE19990815").setRecipient(new TradeParty("Franz Müller","teststr.12", "55232", "Entenhausen", "DE").setContact(new Contact("nameRep", "phoneRep", "emailRep@test.com"))).setNumber(number).addItem(new Item(new Product("Testprodukt", "", "C62", new BigDecimal(19)), amount, new BigDecimal(1.0))));
+			try {
+				ze.setTransaction(new Invoice().setDueDate(new Date()).setIssueDate(new Date()).setDeliveryDate(new Date()).setOccurrencePeriod(new SimpleDateFormat("yyyy-MM-dd").parse("2020-10-01"), new SimpleDateFormat("yyyy-MM-dd").parse("2020-10-05")).setContractReferencedDocument("0815").setSender(new TradeParty(orgname, "teststr", "55232", "teststadt", "DE").addBankDetails(new BankDetails("777666555", "DE4321"))).setOwnTaxID("4711").setOwnVATID("DE19990815").setRecipient(new TradeParty("Franz Müller", "teststr.12", "55232", "Entenhausen", "DE").setContact(new Contact("nameRep", "phoneRep", "emailRep@test.com"))).setNumber(number).addItem(new Item(new Product("Testprodukt", "", "C62", new BigDecimal(19)), amount, new BigDecimal(1.0))));
+			} catch (ParseException ex) {
+				throw new RuntimeException("Parse exception");
+			}
 			String theXML = new String(ze.getProvider().getXML());
 			assertTrue(theXML.contains("777666555")); //the iban
 			assertTrue(theXML.contains("<rsm:CrossIndustryInvoice"));
+
 			ze.export(TARGET_PDF);
 		} catch (IOException e) {
 			fail("IOException should not be raised in testEdgeExport");