diff --git a/gcp_service_accounts_credentials.sh b/gcp_service_accounts_credentials.sh
new file mode 100755
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+++ b/gcp_service_accounts_credentials.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  Author: Hari Sekhon
+#  Date: 2020-10-28 14:02:13 +0000 (Wed, 28 Oct 2020)
+#
+#  https://github.com/HariSekhon/bash-tools
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/HariSekhon
+#
+
+set -euo pipefail
+[ -n "${DEBUG:-}" ] && set -x
+srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# shellcheck disable=SC1090
+. "$srcdir/lib/utils.sh"
+
+# shellcheck disable=SC2034,SC2154
+usage_description="
+List all service account credential keys, creation and expiry dates in the current GCP project
+
+Output Format:
+
+<key_id>  <created_date>  <expiry_date>  <service_account_email>
+
+
+Requires GCloud SDK to be installed and configured for your project
+"
+
+# used by usage() in lib/utils.sh
+# shellcheck disable=SC2034
+usage_args=""
+
+help_usage "$@"
+
+service_accounts="$(gcloud iam service-accounts list --format='get(email)')"
+
+for service_account in $service_accounts; do
+    gcloud iam service-accounts keys list --iam-account "$service_account" \
+                                          --format='table[no-heading](name.basename(), validAfterTime, validBeforeTime)' \
+                                          --filter='keyType != SYSTEM_MANAGED' |
+    # suffixing is better for alignment as service account email lengths are the only variable field and otherwise
+    # this comes out all misaligned or we have to pipe through column -t with no progress output,
+    # leaving appearance of a long O(n) hang before results
+    #sed "s/^/$service_account    /"
+    sed "s/$/  $service_account/"
+done