diff --git a/.changelog/unreleased/improvements/3757-better-custom-tx-error.md b/.changelog/unreleased/improvements/3757-better-custom-tx-error.md
new file mode 100644
index 0000000000..3346e7238e
--- /dev/null
+++ b/.changelog/unreleased/improvements/3757-better-custom-tx-error.md
@@ -0,0 +1,3 @@
+- Improve error and help messages to clarify that a .tx
+  file is expected as input to --tx-path for a custom tx.
+  ([\#3757](https://github.com/anoma/namada/pull/3757))
\ No newline at end of file