diff --git a/back/models/vn-user.js b/back/models/vn-user.js
index de5bf7b63..5ab0c755e 100644
--- a/back/models/vn-user.js
+++ b/back/models/vn-user.js
@@ -2,6 +2,7 @@ const vnModel = require('vn-loopback/common/models/vn-model');
 const {Email} = require('vn-print');
 const ForbiddenError = require('vn-loopback/util/forbiddenError');
 const LoopBackContext = require('loopback-context');
+const validateTin = require('vn-loopback/util/validateTin');
 
 module.exports = function(Self) {
     vnModel(Self);
@@ -19,6 +20,27 @@ module.exports = function(Self) {
 
     // Validations
 
+    Self.validateAsync('fi', tinIsValid, {
+        message: 'Invalid TIN'
+    });
+
+    async function tinIsValid(err, done) {
+        if (!this.isTaxDataChecked)
+            return done();
+
+        const filter = {
+            fields: ['code'],
+            where: {id: this.countryFk}
+        };
+        const country = await Self.app.models.Country.findOne(filter);
+        const code = country ? country.code.toLowerCase() : null;
+        const countryCode = this.fi?.toLowerCase().substring(0, 2);
+
+        if (!this.fi || !validateTin(this.fi, code) || (this.isVies && countryCode == code))
+            err();
+        done();
+    }
+
     Self.validatesFormatOf('email', {
         message: 'Invalid email',
         allowNull: true,
diff --git a/modules/worker/back/models/worker.js b/modules/worker/back/models/worker.js
index 8fb4c8a02..985d83e9f 100644
--- a/modules/worker/back/models/worker.js
+++ b/modules/worker/back/models/worker.js
@@ -23,25 +23,4 @@ module.exports = Self => {
     Self.validatesUniquenessOf('locker', {
         message: 'This locker has already been assigned'
     });
-
-    Self.validateAsync('fi', tinIsValid, {
-        message: 'Invalid TIN'
-    });
-
-    async function tinIsValid(err, done) {
-        if (!this.isTaxDataChecked)
-            return done();
-
-        const filter = {
-            fields: ['code'],
-            where: {id: this.countryFk}
-        };
-        const country = await Self.app.models.Country.findOne(filter);
-        const code = country ? country.code.toLowerCase() : null;
-        const countryCode = this.fi?.toLowerCase().substring(0, 2);
-
-        if (!this.fi || !validateTin(this.fi, code) || (this.isVies && countryCode == code))
-            err();
-        done();
-    }
 };
diff --git a/modules/worker/front/create/index.js b/modules/worker/front/create/index.js
index b112fc06f..e6d65221f 100644
--- a/modules/worker/front/create/index.js
+++ b/modules/worker/front/create/index.js
@@ -1,6 +1,5 @@
 import ngModule from '../module';
 import Section from 'salix/components/section';
-const validateTin = require('vn-loopback/util/validateTin');
 
 export default class Controller extends Section {
     constructor($element, $) {