diff --git a/ivy/functional/frontends/jax/array.py b/ivy/functional/frontends/jax/array.py
index 8434a3578d0a0..290f7a2fd9c76 100644
--- a/ivy/functional/frontends/jax/array.py
+++ b/ivy/functional/frontends/jax/array.py
@@ -163,6 +163,27 @@ def sort(self, axis=-1, order=None):
             order=order,
         )
 
+    def sum(
+        self,
+        axis=None,
+        dtype=None,
+        out=None,
+        keepdims=False,
+        initial=None,
+        where=None,
+        promote_integers=True,
+    ):
+        return jax_frontend.numpy.sum(
+            self,
+            axis=axis,
+            dtype=dtype,
+            out=out,
+            keepdims=keepdims,
+            initial=initial,
+            where=where,
+            promote_integers=promote_integers,
+        )
+
     def argsort(self, axis=-1, kind="stable", order=None):
         return jax_frontend.numpy.argsort(self, axis=axis, kind=kind, order=order)
 
diff --git a/ivy/functional/frontends/jax/numpy/statistical.py b/ivy/functional/frontends/jax/numpy/statistical.py
index 26ac5fc5741ec..069e6aedba66b 100644
--- a/ivy/functional/frontends/jax/numpy/statistical.py
+++ b/ivy/functional/frontends/jax/numpy/statistical.py
@@ -95,19 +95,20 @@ def sum(
     where=None,
     promote_integers=True,
 ):
-    if dtype is None:
-        dtype = "float32" if ivy.is_int_dtype(a.dtype) else ivy.as_ivy_dtype(a.dtype)
-
     # TODO: promote_integers is only supported from JAX v0.4.10
     if dtype is None and promote_integers:
-        if ivy.is_bool_dtype(dtype):
+        if ivy.is_bool_dtype(a.dtype):
             dtype = ivy.default_int_dtype()
-        elif ivy.is_uint_dtype(dtype):
-            if ivy.dtype_bits(dtype) < ivy.dtype_bits(ivy.default_uint_dtype()):
-                dtype = ivy.default_uint_dtype()
-        elif ivy.is_int_dtype(dtype):
-            if ivy.dtype_bits(dtype) < ivy.dtype_bits(ivy.default_int_dtype()):
-                dtype = ivy.default_int_dtype()
+        elif ivy.is_uint_dtype(a.dtype):
+            dtype = "uint64"
+            a = ivy.astype(a, dtype)
+        elif ivy.is_int_dtype(a.dtype):
+            dtype = "int64"
+            a = ivy.astype(a, dtype)
+        else:
+            dtype = a.dtype
+    elif dtype is None and not promote_integers:
+        dtype = "float32" if ivy.is_int_dtype(a.dtype) else ivy.as_ivy_dtype(a.dtype)
 
     if initial:
         if axis is None:
diff --git a/ivy_tests/test_ivy/test_frontends/test_jax/test_array.py b/ivy_tests/test_ivy/test_frontends/test_jax/test_array.py
index 888c76c18b73b..8824b7261c030 100644
--- a/ivy_tests/test_ivy/test_frontends/test_jax/test_array.py
+++ b/ivy_tests/test_ivy/test_frontends/test_jax/test_array.py
@@ -705,6 +705,49 @@ def test_jax_array_sort(
     )
 
 
+@handle_frontend_method(
+    class_tree=CLASS_TREE,
+    init_tree="jax.numpy.array",
+    method_name="sum",
+    dtype_and_x=helpers.dtype_values_axis(
+        available_dtypes=helpers.get_dtypes("numeric"),
+        min_num_dims=1,
+        max_num_dims=5,
+        min_dim_size=2,
+        max_dim_size=10,
+        valid_axis=True,
+        force_int_axis=True,
+    ),
+)
+def test_jax_sum(
+    dtype_and_x,
+    on_device,
+    frontend,
+    frontend_method_data,
+    backend_fw,
+    init_flags,
+    method_flags,
+):
+    input_dtype, x, axis = dtype_and_x
+    helpers.test_frontend_method(
+        backend_to_test=backend_fw,
+        init_input_dtypes=input_dtype,
+        init_all_as_kwargs_np={
+            "object": x[0],
+        },
+        method_input_dtypes=input_dtype,
+        method_all_as_kwargs_np={
+            "axis": axis,
+        },
+        frontend=frontend,
+        frontend_method_data=frontend_method_data,
+        init_flags=init_flags,
+        method_flags=method_flags,
+        on_device=on_device,
+        atol_=1e-04,
+    )
+
+
 @handle_frontend_method(
     class_tree=CLASS_TREE,
     init_tree="jax.numpy.array",