diff --git a/itext.tests/itext.layout.tests/resources/itext/layout/CanvasTest/cmp_canvasWithPageEnableTaggingTest01.pdf b/itext.tests/itext.layout.tests/resources/itext/layout/CanvasTest/cmp_canvasWithPageEnableTaggingTest01.pdf
index 6502b796cd..5466863a98 100644
Binary files a/itext.tests/itext.layout.tests/resources/itext/layout/CanvasTest/cmp_canvasWithPageEnableTaggingTest01.pdf and b/itext.tests/itext.layout.tests/resources/itext/layout/CanvasTest/cmp_canvasWithPageEnableTaggingTest01.pdf differ
diff --git a/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingPdf2Test/cmp_docWithSectInPdf2.pdf b/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingPdf2Test/cmp_docWithSectInPdf2.pdf
index 5502c694d3..2ec2e61487 100644
Binary files a/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingPdf2Test/cmp_docWithSectInPdf2.pdf and b/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingPdf2Test/cmp_docWithSectInPdf2.pdf differ
diff --git a/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingTest/cmp_linkTest01.pdf b/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingTest/cmp_linkTest01.pdf
index 57a19fcf18..b4283165e3 100644
Binary files a/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingTest/cmp_linkTest01.pdf and b/itext.tests/itext.layout.tests/resources/itext/layout/LayoutTaggingTest/cmp_linkTest01.pdf differ
diff --git a/itext.tests/itext.pdfua.tests/itext/pdfua/checkers/PdfUALayoutTest.cs b/itext.tests/itext.pdfua.tests/itext/pdfua/checkers/PdfUALayoutTest.cs
index 5a6882dce7..2f3a7e495a 100644
--- a/itext.tests/itext.pdfua.tests/itext/pdfua/checkers/PdfUALayoutTest.cs
+++ b/itext.tests/itext.pdfua.tests/itext/pdfua/checkers/PdfUALayoutTest.cs
@@ -69,6 +69,23 @@ public virtual void SimpleParagraphTest() {
             NUnit.Framework.Assert.IsNull(new VeraPdfValidator().Validate(outPdf));
         }
 
+        // Android-Conversion-Skip-Line (TODO DEVSIX-7377 introduce pdf/ua validation on Android)
+        [NUnit.Framework.Test]
+        public virtual void SimpleParagraphWithUnderlineTest() {
+            String outPdf = DESTINATION_FOLDER + "simpleParagraphTest.pdf";
+            String cmpPdf = SOURCE_FOLDER + "cmp_simpleParagraphWithUnderlineTest.pdf";
+            PdfUATestPdfDocument pdfDoc = new PdfUATestPdfDocument(new PdfWriter(outPdf, PdfUATestPdfDocument.CreateWriterProperties
+                ()));
+            PdfFont font = PdfFontFactory.CreateFont(FONT, PdfEncodings.WINANSI, PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED
+                );
+            Document doc = new Document(pdfDoc);
+            doc.Add(new Paragraph("Simple layout PDF/UA-1 with underline test").SetFont(font).SetUnderline());
+            doc.Close();
+            NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(outPdf, cmpPdf, DESTINATION_FOLDER, "diff_"
+                ));
+            NUnit.Framework.Assert.IsNull(new VeraPdfValidator().Validate(outPdf));
+        }
+
         // Android-Conversion-Skip-Line (TODO DEVSIX-7377 introduce pdf/ua validation on Android)
         [NUnit.Framework.Test]
         public virtual void SimpleBorderTest() {
diff --git a/itext.tests/itext.pdfua.tests/resources/itext/pdfua/PdfUALayoutTest/cmp_simpleParagraphWithUnderlineTest.pdf b/itext.tests/itext.pdfua.tests/resources/itext/pdfua/PdfUALayoutTest/cmp_simpleParagraphWithUnderlineTest.pdf
new file mode 100644
index 0000000000..9ec7e263b7
Binary files /dev/null and b/itext.tests/itext.pdfua.tests/resources/itext/pdfua/PdfUALayoutTest/cmp_simpleParagraphWithUnderlineTest.pdf differ
diff --git a/itext/itext.layout/itext/layout/renderer/TextRenderer.cs b/itext/itext.layout/itext/layout/renderer/TextRenderer.cs
index 0cb4858b7d..3ac45e8222 100644
--- a/itext/itext.layout/itext/layout/renderer/TextRenderer.cs
+++ b/itext/itext.layout/itext/layout/renderer/TextRenderer.cs
@@ -911,24 +911,24 @@ public override void Draw(DrawContext drawContext) {
                 }
                 canvas.EndText().RestoreState();
                 EndElementOpacityApplying(drawContext);
+                if (isTagged) {
+                    canvas.CloseTag();
+                }
                 Object underlines = this.GetProperty<Object>(Property.UNDERLINE);
                 if (underlines is IList) {
                     foreach (Object underline in (IList)underlines) {
                         if (underline is Underline) {
-                            DrawSingleUnderline((Underline)underline, fontColor, canvas, fontSize.GetValue(), italicSimulation ? ITALIC_ANGLE
-                                 : 0);
+                            DrawAndTagSingleUnderline(drawContext.IsTaggingEnabled(), (Underline)underline, fontColor, canvas, fontSize
+                                .GetValue(), italicSimulation ? ITALIC_ANGLE : 0);
                         }
                     }
                 }
                 else {
                     if (underlines is Underline) {
-                        DrawSingleUnderline((Underline)underlines, fontColor, canvas, fontSize.GetValue(), italicSimulation ? ITALIC_ANGLE
-                             : 0);
+                        DrawAndTagSingleUnderline(drawContext.IsTaggingEnabled(), (Underline)underlines, fontColor, canvas, fontSize
+                            .GetValue(), italicSimulation ? ITALIC_ANGLE : 0);
                     }
                 }
-                if (isTagged) {
-                    canvas.CloseTag();
-                }
             }
             if (isRelativePosition) {
                 ApplyRelativePositioningTranslation(false);
@@ -1678,6 +1678,17 @@ internal virtual bool[] IsStartsWithSplitCharWhiteSpaceAndEndsWithSplitChar(ISpl
             }
         }
 
+        private void DrawAndTagSingleUnderline(bool isTagged, Underline underline, TransparentColor fontStrokeColor
+            , PdfCanvas canvas, float fontSize, float italicAngleTan) {
+            if (isTagged) {
+                canvas.OpenTag(new CanvasArtifact());
+            }
+            DrawSingleUnderline(underline, fontStrokeColor, canvas, fontSize, italicAngleTan);
+            if (isTagged) {
+                canvas.CloseTag();
+            }
+        }
+
         private float GetCharWidth(Glyph g, float fontSize, float? hScale, float? characterSpacing, float? wordSpacing
             ) {
             if (hScale == null) {
diff --git a/port-hash b/port-hash
index 5592dbea14..de0a2f83f7 100644
--- a/port-hash
+++ b/port-hash
@@ -1 +1 @@
-16ce4653542fa02480dd15063f1dd5cc0c874f54
+38302fac797c3956c68cdfd02edba765ea311064