diff --git a/web3_proxy/src/stats/mod.rs b/web3_proxy/src/stats/mod.rs
index f61004f3..da892a48 100644
--- a/web3_proxy/src/stats/mod.rs
+++ b/web3_proxy/src/stats/mod.rs
@@ -94,6 +94,12 @@ pub struct RpcQueryKey {
     rpc_key_user_id: Option<NonZeroU64>,
 }
 
+impl RpcQueryKey {
+    pub fn is_registered(&self) -> bool {
+        self.rpc_key_user_id.is_some()
+    }
+}
+
 /// round the unix epoch time to the start of a period
 fn round_timestamp(timestamp: i64, period_seconds: i64) -> i64 {
     timestamp / period_seconds * period_seconds
diff --git a/web3_proxy/src/stats/stat_buffer.rs b/web3_proxy/src/stats/stat_buffer.rs
index da30ca87..a2a88f6d 100644
--- a/web3_proxy/src/stats/stat_buffer.rs
+++ b/web3_proxy/src/stats/stat_buffer.rs
@@ -178,7 +178,10 @@ impl StatBuffer {
                                     approximate_balance_remaining = user_balance.remaining();
                                 }
 
-                                self.accounting_db_buffer.entry(stat.accounting_key(self.billing_period_seconds)).or_default().add(stat.clone(), approximate_balance_remaining).await;
+                                let accounting_key = stat.accounting_key(self.billing_period_seconds);
+                                if accounting_key.is_registered() {
+                                    self.accounting_db_buffer.entry(accounting_key).or_default().add(stat.clone(), approximate_balance_remaining).await;
+                                }
                             }
 
                             if self.influxdb_client.is_some() {