diff --git a/packages/sync/src/Defaults.php b/packages/sync/src/Defaults.php
index 1b9104b5b781..fdb1ae3a0c54 100644
--- a/packages/sync/src/Defaults.php
+++ b/packages/sync/src/Defaults.php
@@ -525,6 +525,12 @@ public static function get_callable_whitelist() {
 		'slug',
 	);
 
+	static $default_term_relationships_checksum_columns = array(
+		'object_id',
+		'term_taxonomy_id',
+		'term_order',
+	);
+
 	static $default_multisite_callable_whitelist = array(
 		'network_name'                        => array( 'Jetpack', 'network_name' ),
 		'network_allow_new_registrations'     => array( 'Jetpack', 'network_allow_new_registrations' ),
diff --git a/packages/sync/src/Replicastore.php b/packages/sync/src/Replicastore.php
index bce579ccb6ee..4708d9dd18e7 100644
--- a/packages/sync/src/Replicastore.php
+++ b/packages/sync/src/Replicastore.php
@@ -43,6 +43,11 @@ public function term_count() {
 		return $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->terms" );
 	}
 
+	public function term_relationship_count() {
+		global $wpdb;
+		return $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->term_relationships" );
+	}
+
 	public function post_count( $status = null, $min_id = null, $max_id = null ) {
 		global $wpdb;
 
@@ -659,6 +664,8 @@ function get_checksum_columns_for_object_type( $object_type ) {
 				return Defaults::$default_post_meta_checksum_columns;
 			case 'terms':
 				return Defaults::$default_term_checksum_columns;
+			case 'term_relationships':
+				return Defaults::$default_term_relationships_checksum_columns;
 			default:
 				return false;
 		}
@@ -704,6 +711,12 @@ function checksum_histogram( $object_type, $buckets, $start_id = null, $end_id =
 				$id_field     = 'term_id';
 				$where_sql    = '1=1';
 				break;
+			case 'term_relationships':
+				$object_table = $wpdb->term_relationships;
+				$object_count = $this->term_relationship_count();
+				$id_field     = 'object_id';
+				$where_sql    = '1=1';
+				break;
 			default:
 				return false;
 		}