diff --git a/src/CONST.js b/src/CONST.js
index 40b8710f1c59..1ab5fb1b64b7 100755
--- a/src/CONST.js
+++ b/src/CONST.js
@@ -444,6 +444,7 @@ const CONST = {
         CARD_NUMBER: /^[0-9]{15,16}$/,
         CARD_SECURITY_CODE: /^[0-9]{3,4}$/,
         CARD_EXPIRATION_DATE: /(0[1-9]|10|11|12)\/20[0-9]{2}$/,
+        PAYPAL_ME_USERNAME: /^[a-zA-Z0-9]+$/,
 
         // Adapted from: https://gist.github.com/dperini/729294
         // eslint-disable-next-line max-len
diff --git a/src/languages/en.js b/src/languages/en.js
index 36a4f1d273a5..baf95625326b 100755
--- a/src/languages/en.js
+++ b/src/languages/en.js
@@ -284,6 +284,7 @@ export default {
         addPayPalAccount: 'Add PayPal account',
         editPayPalAccount: 'Update PayPal account',
         growlMessageOnSave: 'Your PayPal username was successfully added',
+        formatError: 'Invalid PayPal.me username',
     },
     addDebitCardPage: {
         addADebitCard: 'Add a Debit Card',
diff --git a/src/languages/es.js b/src/languages/es.js
index 95e9ac082b68..e547291efabe 100644
--- a/src/languages/es.js
+++ b/src/languages/es.js
@@ -284,6 +284,7 @@ export default {
         addPayPalAccount: 'Agregar cuenta de PayPal',
         growlMessageOnSave: 'Su nombre de usuario de PayPal se agregó correctamente',
         editPayPalAccount: 'Actualizar cuenta de PayPal',
+        formatError: 'Usuario PayPal.me no válido',
     },
     addDebitCardPage: {
         addADebitCard: 'Agregar una tarjeta de débito',
diff --git a/src/libs/ValidationUtils.js b/src/libs/ValidationUtils.js
index fd74aeb2b04a..62bef31a9628 100644
--- a/src/libs/ValidationUtils.js
+++ b/src/libs/ValidationUtils.js
@@ -135,6 +135,15 @@ function isValidSSNLastFour(ssnLast4) {
     return CONST.REGEX.SSN_LAST_FOUR.test(ssnLast4);
 }
 
+/**
+ *
+ * @param {String} paypalUsername
+ * @returns {Boolean}
+ */
+function isValidPaypalUsername(paypalUsername) {
+    return Boolean(paypalUsername) && CONST.REGEX.PAYPAL_ME_USERNAME.test(paypalUsername);
+}
+
 /**
  * Validate that "date" is between 18 and 150 years in the past
  *
@@ -236,4 +245,5 @@ export {
     isValidURL,
     validateIdentity,
     isNumericWithSpecialChars,
+    isValidPaypalUsername,
 };
diff --git a/src/pages/settings/Payments/AddPayPalMePage.js b/src/pages/settings/Payments/AddPayPalMePage.js
index 58905d2d6e8d..69d798a001c5 100644
--- a/src/pages/settings/Payments/AddPayPalMePage.js
+++ b/src/pages/settings/Payments/AddPayPalMePage.js
@@ -19,6 +19,7 @@ import KeyboardAvoidingView from '../../../components/KeyboardAvoidingView';
 import FixedFooter from '../../../components/FixedFooter';
 import Growl from '../../../libs/Growl';
 import ExpensiTextInput from '../../../components/ExpensiTextInput';
+import {isValidPaypalUsername} from '../../../libs/ValidationUtils';
 
 const propTypes = {
     /** Username for PayPal.Me */
@@ -37,6 +38,7 @@ class AddPayPalMePage extends React.Component {
 
         this.state = {
             payPalMeUsername: props.payPalMeUsername,
+            payPalMeUsernameError: false,
         };
         this.setPayPalMeUsername = this.setPayPalMeUsername.bind(this);
         this.paypalUsernameInputRef = null;
@@ -58,6 +60,12 @@ class AddPayPalMePage extends React.Component {
      * Sets the payPalMeUsername for the current user
      */
     setPayPalMeUsername() {
+        const isValid = isValidPaypalUsername(this.state.payPalMeUsername);
+        if (!isValid) {
+            this.setState({payPalMeUsernameError: true});
+            return;
+        }
+        this.setState({payPalMeUsernameError: false});
         NameValuePair.set(CONST.NVP.PAYPAL_ME_ADDRESS, this.state.payPalMeUsername, ONYXKEYS.NVP_PAYPAL_ME_ADDRESS);
         Growl.show(this.props.translate('addPayPalMePage.growlMessageOnSave'), CONST.GROWL.SUCCESS, 3000);
         Navigation.navigate(ROUTES.SETTINGS_PAYMENTS);
@@ -90,8 +98,10 @@ class AddPayPalMePage extends React.Component {
                                 autoCorrect={false}
                                 value={this.state.payPalMeUsername}
                                 placeholder={this.props.translate('addPayPalMePage.yourPayPalUsername')}
-                                onChangeText={text => this.setState({payPalMeUsername: text})}
+                                onChangeText={text => this.setState({payPalMeUsername: text, payPalMeUsernameError: false})}
                                 returnKeyType="done"
+                                hasError={this.state.payPalMeUsernameError}
+                                errorText={this.state.payPalMeUsernameError ? this.props.translate('addPayPalMePage.formatError') : ''}
                             />
                         </View>
                     </View>