diff --git a/app/static/index.html b/app/static/index.html
index 8ab5cf7..5ebfe67 100644
--- a/app/static/index.html
+++ b/app/static/index.html
@@ -90,6 +90,7 @@
     outline: none; border-color: var(--color-ring);
     box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-ring) 25%, transparent);
   }
+  input:disabled { background: var(--color-surface-inset); color: var(--color-muted-foreground); }
 
   button {
     display: inline-flex; align-items: center; justify-content: center; gap: 6px;
@@ -122,6 +123,15 @@
 
   .row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
 
+  .checkbox-row {
+    display: flex; align-items: center; gap: 8px;
+    font-size: 0.85rem; font-weight: 500; color: var(--color-foreground);
+    margin-top: 14px; cursor: pointer;
+  }
+  .checkbox-row input[type="checkbox"] {
+    width: 18px; height: 18px; min-height: auto; flex-shrink: 0; accent-color: var(--color-primary); cursor: pointer;
+  }
+
   /* --- app navbar: brand/balance row (sticky top) + section nav (bottom tab bar on
      mobile, promoted back to an inline tab strip once there's room — see the
      min-width breakpoint below), shown only when logged in --- */
@@ -556,6 +566,10 @@
       <p class="hint">Solo indirizzi P2WPKH bech32 (quelli che iniziano con <code>plm1q...</code>). Indirizzi legacy (<code>P...</code>) o P2SH non sono supportati.</p>
       <label for="wd-amount">Importo (PLM)</label>
       <input id="wd-amount" inputmode="decimal" placeholder="es. 2">
+      <label class="checkbox-row">
+        <input type="checkbox" id="wd-full-amount" onchange="toggleWithdrawFullAmount()">
+        Preleva l'intero importo (<span class="mono" id="wd-full-amount-value">—</span> PLM)
+      </label>
       <button onclick="withdraw()" id="withdraw-btn">Preleva</button>
     </div>
   </div>
@@ -998,6 +1012,7 @@ async function copyAddress() {
 }
 
 let myUserId = null;
+let myBalanceSats = 0;
 
 async function refreshMe() {
   const btn = document.getElementById('refresh-btn');
@@ -1005,18 +1020,30 @@ async function refreshMe() {
     try {
       const data = await call('GET', '/users/me');
       myUserId = data.id;
+      myBalanceSats = data.balance_sats;
       document.getElementById('dash-balance').textContent = data.balance_sats / SATS_PER_PLM;
       document.getElementById('navbar-balance').textContent = (data.balance_sats / SATS_PER_PLM) + ' PLM';
       document.getElementById('profile-username').textContent = data.username;
       document.getElementById('profile-address').textContent = data.address;
       document.getElementById('profile-balance').textContent = data.balance_sats / SATS_PER_PLM;
       document.getElementById('profile-created-at').textContent = new Date(data.created_at).toLocaleDateString('it-IT');
+      document.getElementById('wd-full-amount-value').textContent = data.balance_sats / SATS_PER_PLM;
+      if (document.getElementById('wd-full-amount').checked) {
+        document.getElementById('wd-amount').value = data.balance_sats / SATS_PER_PLM;
+      }
     } catch (e) {
       toast(e.message, 'error');
     }
   });
 }
 
+function toggleWithdrawFullAmount() {
+  const checked = document.getElementById('wd-full-amount').checked;
+  const amountInput = document.getElementById('wd-amount');
+  amountInput.disabled = checked;
+  if (checked) amountInput.value = myBalanceSats / SATS_PER_PLM;
+}
+
 async function changePassword() {
   const btn = document.getElementById('change-password-btn');
   const currentPassword = document.getElementById('settings-current-password').value;
@@ -1065,12 +1092,17 @@ async function placeBet() {
 async function withdraw() {
   const btn = document.getElementById('withdraw-btn');
   const ext = document.getElementById('wd-address').value;
-  const amtPlm = parseFloat(document.getElementById('wd-amount').value);
-  const amtSats = Math.round(amtPlm * SATS_PER_PLM);
+  const isFullAmount = document.getElementById('wd-full-amount').checked;
+  const amtSats = isFullAmount
+    ? myBalanceSats
+    : Math.round(parseFloat(document.getElementById('wd-amount').value) * SATS_PER_PLM);
   await withLoading(btn, 'Invio…', async () => {
     try {
       await call('POST', '/withdrawals', { external_address: ext, amount_sats: amtSats });
       toast('Withdrawal inviato.', 'success');
+      document.getElementById('wd-full-amount').checked = false;
+      toggleWithdrawFullAmount();
+      document.getElementById('wd-amount').value = '';
     } catch (e) {
       toast(e.message, 'error');
     }