diff --git a/atst/forms/financial.py b/atst/forms/financial.py
index 4238df60..ea81ea1b 100644
--- a/atst/forms/financial.py
+++ b/atst/forms/financial.py
@@ -122,7 +122,7 @@ class BaseFinancialForm(ValidatedForm):
 
     ba_code = StringField(
         "Program Budget Activity (BA) Code",
-        description="BA Code is used to identify the purposes, projects, or types of activities financed by the appropriation fund. <br/><em>It should be two digits, followed by a letter.</em>",
+        description="BA Code is used to identify the purposes, projects, or types of activities financed by the appropriation fund. <br/><em>It should be two digits, followed by an optional letter.</em>",
         validators=[Required(), Regexp(BA_CODE_REGEX)],
     )
 
diff --git a/js/lib/input_validations.js b/js/lib/input_validations.js
index 4df1f7dd..80b36f9a 100644
--- a/js/lib/input_validations.js
+++ b/js/lib/input_validations.js
@@ -77,7 +77,7 @@ export default {
     },
     match: /[0-9]{2}\w?$/,
     unmask: [],
-    validationError: 'Please enter a valid BA Code. Note that it should be two digits, followed by a letter.'
+    validationError: 'Please enter a valid BA Code. Note that it should be two digits, followed by an optional letter.'
   },
   workspaceName: {
     mask: false,