diff --git a/src/effect/schema/Tag.ts b/src/effect/schema/Tag.ts
new file mode 100644
index 0000000..9570122
--- /dev/null
+++ b/src/effect/schema/Tag.ts
@@ -0,0 +1,9 @@
+import { Schema as S } from "@effect/schema"
+
+
+export function Tag<Tag extends string>(tag: Tag) {
+    return S.withConstructorDefault(
+        S.propertySignature(S.Literal(tag)),
+        () => tag,
+    )
+}
diff --git a/src/effect/schema/index.ts b/src/effect/schema/index.ts
index e77bc0e..2275c31 100644
--- a/src/effect/schema/index.ts
+++ b/src/effect/schema/index.ts
@@ -1 +1,2 @@
 export { Jsonifiable } from "./Jsonifiable"
+export { Tag } from "./Tag"