diff --git a/cpp/src/arrow/compute/kernels/filter.cc b/cpp/src/arrow/compute/kernels/filter.cc
index f985886973b..86545aa1c61 100644
--- a/cpp/src/arrow/compute/kernels/filter.cc
+++ b/cpp/src/arrow/compute/kernels/filter.cc
@@ -65,10 +65,8 @@ class FilterIndexSequence {
 
 // TODO(bkietz) this can be optimized
 static int64_t OutputSize(const BooleanArray& filter) {
-  auto offset = filter.offset();
-  auto length = filter.length();
   int64_t size = 0;
-  for (auto i = offset; i < offset + length; ++i) {
+  for (auto i = 0; i < filter.length(); ++i) {
     if (filter.IsNull(i) || filter.Value(i)) {
       ++size;
     }
diff --git a/cpp/src/arrow/compute/kernels/filter_test.cc b/cpp/src/arrow/compute/kernels/filter_test.cc
index 37f609e92d5..bb685f474dc 100644
--- a/cpp/src/arrow/compute/kernels/filter_test.cc
+++ b/cpp/src/arrow/compute/kernels/filter_test.cc
@@ -151,6 +151,10 @@ TYPED_TEST(TestFilterKernelWithNumeric, FilterNumeric) {
   this->AssertFilter("[7, 8, 9]", "[null, 1, 0]", "[null, 8]");
   this->AssertFilter("[7, 8, 9]", "[1, null, 1]", "[7, null, 9]");
 
+  this->AssertFilterArrays(ArrayFromJSON(this->type_singleton(), "[7, 8, 9]"),
+                           ArrayFromJSON(boolean(), "[0, 1, 1, 1, 0, 1]")->Slice(3, 3),
+                           ArrayFromJSON(this->type_singleton(), "[7, 9]"));
+
   std::shared_ptr<Array> arr;
   ASSERT_RAISES(Invalid, this->Filter(this->type_singleton(), "[7, 8, 9]", "[]", &arr));
 }