diff --git a/src/lib/isVAT.js b/src/lib/isVAT.js
index ece7d8560..d1b867688 100644
--- a/src/lib/isVAT.js
+++ b/src/lib/isVAT.js
@@ -60,7 +60,7 @@ export const vatMatchers = {
   RO: str => /^(RO)?\d{2,10}$/.test(str),
   SK: str => /^(SK)?\d{10}$/.test(str),
   SI: str => /^(SI)?\d{8}$/.test(str),
-  ES: str => /^(ES)?\w\d{7}[A-Z]$/.test(str),
+  ES: str => /^(ES)?(\d{8}|[a-zA-Z]\d{7}[0-9a-zA-Z])/.test(str),
   SE: str => /^(SE)?\d{12}$/.test(str),
 
   /**