diff --git a/api/next/45628.txt b/api/next/45628.txt
new file mode 100644
index 0000000000..5065ae4a60
--- /dev/null
+++ b/api/next/45628.txt
@@ -0,0 +1 @@
+pkg encoding/xml, method (*Decoder) InputPos() (int, int) #45628
diff --git a/src/encoding/xml/xml.go b/src/encoding/xml/xml.go
index ef51252dcb..a7a02f5b57 100644
--- a/src/encoding/xml/xml.go
+++ b/src/encoding/xml/xml.go
@@ -216,6 +216,7 @@ type Decoder struct {
 	ns             map[string]string
 	err            error
 	line           int
+	linestart      int64
 	offset         int64
 	unmarshalDepth int
 }
@@ -919,6 +920,7 @@ func (d *Decoder) getc() (b byte, ok bool) {
 	}
 	if b == '\n' {
 		d.line++
+		d.linestart = d.offset + 1
 	}
 	d.offset++
 	return b, true
@@ -931,6 +933,13 @@ func (d *Decoder) InputOffset() int64 {
 	return d.offset
 }
 
+// InputPos retuns the line of the current decoder position and the 1 based
+// input position of the line. The position gives the location of the end of the
+// most recently returned token.
+func (d *Decoder) InputPos() (line, column int) {
+	return d.line, int(d.offset-d.linestart) + 1
+}
+
 // Return saved offset.
 // If we did ungetc (nextByte >= 0), have to back up one.
 func (d *Decoder) savedOffset() int {
diff --git a/src/encoding/xml/xml_test.go b/src/encoding/xml/xml_test.go
index ab1dbf849b..8f0d97b6a6 100644
--- a/src/encoding/xml/xml_test.go
+++ b/src/encoding/xml/xml_test.go
@@ -502,6 +502,45 @@ func TestSyntax(t *testing.T) {
 	}
 }
 
+func TestInputLinePos(t *testing.T) {
+	testInput := `<root>
+<?pi
+ ?>  <elt
+att
+=
+"val">
+<![CDATA[
+]]><!--
+
+--></elt>
+</root>`
+	linePos := [][]int{
+		{1, 7},
+		{2, 1},
+		{3, 4},
+		{3, 6},
+		{6, 7},
+		{7, 1},
+		{8, 4},
+		{10, 4},
+		{10, 10},
+		{11, 1},
+		{11, 8},
+	}
+	dec := NewDecoder(strings.NewReader(testInput))
+	for _, want := range linePos {
+		if _, err := dec.Token(); err != nil {
+			t.Errorf("Unexpected error: %v", err)
+			continue
+		}
+
+		gotLine, gotCol := dec.InputPos()
+		if gotLine != want[0] || gotCol != want[1] {
+			t.Errorf("dec.InputPos() = %d,%d, want %d,%d", gotLine, gotCol, want[0], want[1])
+		}
+	}
+}
+
 type allScalars struct {
 	True1     bool
 	True2     bool