diff --git a/src/request.rs b/src/request.rs
index 402aafc27b..6b07ff38a2 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -12,6 +12,7 @@ use transaction::Transaction;
 pub enum Request {
     Transaction(Transaction),
     GetBalance { key: PublicKey },
+    GetLastId,
     GetTransactionCount,
     Subscribe { subscriptions: Vec<Subscription> },
 }
@@ -41,6 +42,7 @@ impl Request {
 #[derive(Serialize, Deserialize, Debug)]
 pub enum Response {
     Balance { key: PublicKey, val: Option<i64> },
+    LastId { id: Hash },
     TransactionCount { transaction_count: u64 },
     EntryInfo(EntryInfo),
 }
diff --git a/src/request_processor.rs b/src/request_processor.rs
index ad7f76183b..f2b6c51e25 100644
--- a/src/request_processor.rs
+++ b/src/request_processor.rs
@@ -46,6 +46,12 @@ impl RequestProcessor {
                 info!("Response::Balance {:?}", rsp);
                 Some(rsp)
             }
+            Request::GetLastId => {
+                let id = self.accountant.last_id();
+                let rsp = (Response::LastId { id }, rsp_addr);
+                info!("Response::LastId {:?}", rsp);
+                Some(rsp)
+            }
             Request::GetTransactionCount => {
                 let transaction_count = self.accountant.transaction_count() as u64;
                 let rsp = (Response::TransactionCount { transaction_count }, rsp_addr);
diff --git a/src/thin_client.rs b/src/thin_client.rs
index b5337e75d1..eee2fec17b 100644
--- a/src/thin_client.rs
+++ b/src/thin_client.rs
@@ -64,6 +64,10 @@ impl ThinClient {
                 info!("Response balance {:?} {:?}", key, val);
                 self.balances.insert(key, val);
             }
+            Response::LastId { id } => {
+                info!("Response last_id {:?}", id);
+                self.last_id = Some(id);
+            }
             Response::TransactionCount { transaction_count } => {
                 info!("Response transaction count {:?}", transaction_count);
                 self.transaction_count = transaction_count;