diff --git a/.changeset/mighty-bananas-hope.md b/.changeset/mighty-bananas-hope.md
new file mode 100644
index 0000000..6d52f15
--- /dev/null
+++ b/.changeset/mighty-bananas-hope.md
@@ -0,0 +1,5 @@
+---
+"@folks-router/js-sdk": patch
+---
+
+Add additional checks for rekey and close remainder to for pay/asset transaction
diff --git a/packages/folks-router-js-sdk/src/FolksRouterClient.ts b/packages/folks-router-js-sdk/src/FolksRouterClient.ts
index b962adf..bd8af1d 100644
--- a/packages/folks-router-js-sdk/src/FolksRouterClient.ts
+++ b/packages/folks-router-js-sdk/src/FolksRouterClient.ts
@@ -99,6 +99,8 @@ export class FolksRouterClient {
     const swapEndTxn = unsignedTxns[unsignedTxns.length - 1]!;
 
     // send algo/asset
+    if (sendAssetTxn.reKeyTo !== undefined) throw Error("Unexpected rekey");
+    if (sendAssetTxn.closeRemainderTo !== undefined) throw Error("Unexpected close remainder to");
     if (encodeAddress(sendAssetTxn.to.publicKey) !== folksRouterAddr) throw Error("Incorrect receiver");
     if (
       !(fromAssetId === 0 && sendAssetTxn.type == TransactionType.pay) &&