diff --git a/doc/source/user_guide/integer_na.rst b/doc/source/user_guide/integer_na.rst
index 1a727cd78af09..c29b9ff47e59a 100644
--- a/doc/source/user_guide/integer_na.rst
+++ b/doc/source/user_guide/integer_na.rst
@@ -84,6 +84,13 @@ with the dtype.
    In the future, we may provide an option for :class:`Series` to infer a
    nullable-integer dtype.
 
+.. note::
+
+   Adding an empty column with :attr:`pandas.NA` creates a column dtype of
+   ``"Object"`` while :attr:`pandas.NaT` creates ``"datetime64"``. To specify
+   the dtypes, use :meth:`pandas.Series` with the appropriate dtype.
+
+
 Operations
 ----------