diff --git a/frappe/core/doctype/data_import/importer_new.py b/frappe/core/doctype/data_import/importer_new.py
index 1f446cfb39..21b6065ff1 100644
--- a/frappe/core/doctype/data_import/importer_new.py
+++ b/frappe/core/doctype/data_import/importer_new.py
@@ -351,9 +351,9 @@ class Importer:
 		value = cstr(value)
 
 		# convert boolean values to 0 or 1
-		if df.fieldtype == "Check" and value.lower().strip() in ["t", "f", "true", "false"]:
+		if df.fieldtype == "Check" and value.lower().strip() in ["t", "f", "true", "false", "yes", "no", "y", "n"]:
 			value = value.lower().strip()
-			value = 1 if value in ["t", "true"] else 0
+			value = 1 if value in ["t", "true", "y", "yes"] else 0
 
 		if df.fieldtype in ["Int", "Check"]:
 			value = cint(value)