Index: src/main/java/hudson/plugins/cvs_tag/CvsTagPublisher.java
===================================================================
--- src/main/java/hudson/plugins/cvs_tag/CvsTagPublisher.java	(revision 36078)
+++ src/main/java/hudson/plugins/cvs_tag/CvsTagPublisher.java	(working copy)
@@ -36,6 +36,11 @@
 	 */
 	private String tagName;
 
+	/**
+	 * Move the tag if it exists when true
+	 */
+	private boolean moveTag;
+
 	@Extension
 	public static final CvsTagDescriptorImpl DESCRIPTOR = new CvsTagDescriptorImpl();
 
@@ -61,9 +66,26 @@
 		this.tagName = tagName;
 	}
 
+	/**
+	 * @return will move the tag if exists
+	 */
+	public boolean isMoveTag()
+	{
+		return moveTag;
+	}
+
+	/**
+	 * Set whether to move the tag if exists
+	 * @param moveTag whether to move
+	 */
+	public void setMoveTag(boolean moveTag)
+	{
+		this.moveTag = moveTag;
+	}
+
 	public boolean perform(AbstractBuild<?, ?> build, Launcher launcher, BuildListener listener) throws InterruptedException, IOException
 	{
-		return CvsTagPlugin.perform(build, launcher, listener, tagName);
+		return CvsTagPlugin.perform(build, launcher, listener, tagName, moveTag);
 	}
 
 	@Override
@@ -105,6 +127,7 @@
 		{
 			CvsTagPublisher cvsTagPublisher = new CvsTagPublisher();
 			cvsTagPublisher.setTagName(formData.getString("tagName"));
+			cvsTagPublisher.setMoveTag(formData.getBoolean("moveTag"));
 
 			return cvsTagPublisher;
 		}
Index: src/main/java/hudson/plugins/cvs_tag/CvsTagPlugin.java
===================================================================
--- src/main/java/hudson/plugins/cvs_tag/CvsTagPlugin.java	(revision 36078)
+++ src/main/java/hudson/plugins/cvs_tag/CvsTagPlugin.java	(working copy)
@@ -47,7 +47,7 @@
 	}
 
 
-	public static boolean perform(AbstractBuild<?, ?> build, Launcher launcher, BuildListener listener, String tagName) throws IOException, InterruptedException
+	public static boolean perform(AbstractBuild<?, ?> build, Launcher launcher, BuildListener listener, String tagName, boolean moveTag) throws IOException, InterruptedException
 	{
 		PrintStream logger = listener.getLogger();
 
@@ -80,6 +80,11 @@
 		ArgumentListBuilder cmd = new ArgumentListBuilder();
         cmd.add(scm.getDescriptor().getCvsExeOrDefault(), "-d", scm.getCvsRoot(), "rtag");
 
+		if (moveTag)
+		{
+			cmd.add("-F");
+		}
+
 		if (scm.getBranch() != null)
 		{
 			// cvs -d cvsRoot rtag -r branchName tagName modules
Index: src/main/resources/hudson/plugins/cvs_tag/CvsTagPublisher/config.jelly
===================================================================
--- src/main/resources/hudson/plugins/cvs_tag/CvsTagPublisher/config.jelly	(revision 36078)
+++ src/main/resources/hudson/plugins/cvs_tag/CvsTagPublisher/config.jelly	(working copy)
@@ -8,4 +8,11 @@
     <f:textbox name="cvstag.tagName" value="${tagName}" 
                checkUrl="'${rootURL}/publisher/CvsTagPublisher/tagNameCheck?value='+escape(this.value)" />
   </f:entry>
+  <f:advanced>
+	<f:entry>
+	  <j:set var="moveTag" value="${instance.isMoveTag()}"/>
+	  <f:checkbox name="cvstag.moveTag" checked="${moveTag}"/>
+	  <label class="attach-previous">Move tag if it already exists</label>
+  	</f:entry>
+  </f:advanced>
 </j:jelly>