diff --git a/src/resources/lang/en/ui.php b/src/resources/lang/en/ui.php
--- a/src/resources/lang/en/ui.php
+++ b/src/resources/lang/en/ui.php
@@ -516,6 +516,7 @@
         'history' => "History",
         'month' => "month",
         'noperm' => "Only account owners can access a wallet.",
+        'norefund' => "The money in your wallet is non-refundable.",
         'payment-amount-hint' => "Choose the amount by which you want to top up your wallet.",
         'payment-method' => "Method of payment: {method}",
         'payment-warning' => "You will be charged for {price}.",
diff --git a/src/resources/vue/Wallet.vue b/src/resources/vue/Wallet.vue
--- a/src/resources/vue/Wallet.vue
+++ b/src/resources/vue/Wallet.vue
@@ -108,6 +108,9 @@
                         {{ $t('wallet.payment-warning', { price: $root.price(amount * selectedPaymentMethod.exchangeRate * 100, selectedPaymentMethod.currency) }) }}
                     </div>
                 </form>
+                <div class="alert alert-warning m-0 mt-3">
+                    {{ $t('wallet.norefund') }}
+                </div>
             </div>
             <div id="auto-payment" v-if="paymentForm == 'auto'">
                 <form data-validation-prefix="mandate_">
@@ -139,6 +142,9 @@
                         {{ $t('wallet.auto-payment-disabled-next') }}
                     </div>
                 </form>
+                <div class="alert alert-warning m-0 mt-3">
+                    {{ $t('wallet.norefund') }}
+                </div>
             </div>
         </modal-dialog>
     </div>