diff --git a/src/App/Localization/Loc.cs b/src/App/Localization/Loc.cs
index db10f49..ad08441 100644
--- a/src/App/Localization/Loc.cs
+++ b/src/App/Localization/Loc.cs
@@ -275,6 +275,10 @@ public sealed class Loc
         ["send.sect.recipient"]   = ["Destinatario",                                                       "Recipient",                    "Destinatario",                         "Destinataire",                             "Destinatário",                             "Empfänger",                                     "收款人"],
         ["send.sect.amount"]      = ["Importo e commissione",                                              "Amount & fee",                 "Importe y comisión",                   "Montant et frais",                         "Valor e taxa",                             "Betrag & Gebühr",                              "金额与手续费"],
         ["send.summary"]          = ["Riepilogo",                                                          "Summary",                      "Resumen",                              "Résumé",                                   "Resumo",                                   "Zusammenfassung",                              "摘要"],
+        ["send.psbt.label"]       = ["PSBT non firmata (base64) — da firmare altrove",                    "Unsigned PSBT (base64) — sign it elsewhere", "PSBT sin firmar (base64) — fírmala en otro lugar", "PSBT non signée (base64) — à signer ailleurs", "PSBT não assinada (base64) — assine em outro lugar", "Unsignierte PSBT (base64) — anderswo signieren", "未签名 PSBT（base64）— 请在别处签名"],
+        ["send.psbt.copy"]        = ["Copia PSBT",                                                        "Copy PSBT",                    "Copiar PSBT",                          "Copier la PSBT",                           "Copiar PSBT",                               "PSBT kopieren",                                 "复制 PSBT"],
+        ["send.watchonly.hint"]   = ["Wallet in sola lettura: non può firmare. Esporta la PSBT e firmala con un wallet che possiede le chiavi.", "Watch-only wallet: it cannot sign. Export the PSBT and sign it with a wallet that holds the keys.", "Wallet de solo lectura: no puede firmar. Exporta la PSBT y fírmala con un wallet que tenga las claves.", "Wallet en lecture seule : il ne peut pas signer. Exportez la PSBT et signez-la avec un wallet possédant les clés.", "Carteira somente leitura: não pode assinar. Exporte a PSBT e assine-a com uma carteira que tenha as chaves.", "Nur-Lese-Wallet: kann nicht signieren. Exportieren Sie die PSBT und signieren Sie sie mit einem Wallet, das die Schlüssel besitzt.", "仅观察钱包：无法签名。请导出 PSBT 并用持有密钥的钱包签名。"],
+        ["psbt.copied"]           = ["PSBT copiata negli appunti",                                          "PSBT copied to clipboard",     "PSBT copiada al portapapeles",         "PSBT copiée dans le presse-papiers",       "PSBT copiada para a área de transferência", "PSBT in die Zwischenablage kopiert",           "PSBT 已复制到剪贴板"],
         ["receive.your.address"]  = ["Il tuo indirizzo",                                                   "Your address",                 "Tu dirección",                         "Votre adresse",                            "Seu endereço",                             "Deine Adresse",                                "您的地址"],
 
         // Wallet info overlay
diff --git a/src/App/ViewModels/MainWindowViewModel.Send.cs b/src/App/ViewModels/MainWindowViewModel.Send.cs
index 22dc582..40c7610 100644
--- a/src/App/ViewModels/MainWindowViewModel.Send.cs
+++ b/src/App/ViewModels/MainWindowViewModel.Send.cs
@@ -31,6 +31,14 @@ public partial class MainWindowViewModel
     [ObservableProperty]
     private bool hasPendingSend;
 
+    [ObservableProperty]
+    private string pendingPsbtBase64 = "";
+
+    /// <summary>True when the open account cannot sign — Send only prepares an unsigned PSBT to export.</summary>
+    public bool IsWatchOnlyAccount => _account?.IsWatchOnly ?? false;
+
+    public void NotifyPsbtCopied() => StatusMessage = Loc.Tr("psbt.copied");
+
     [RelayCommand]
     private async Task ScanQr()
     {
@@ -81,11 +89,13 @@ public partial class MainWindowViewModel
                 $"({_pendingSend.Transaction.GetVirtualSize()} vB)" +
                 (_pendingSend.Signed ? "" : Loc.Tr("msg.unsigned.watchonly"));
             HasPendingSend = _pendingSend.Signed;
+            PendingPsbtBase64 = _pendingSend.Signed ? "" : _pendingSend.Psbt.ToBase64();
         }
         catch (Exception ex)
         {
             _pendingSend = null;
             HasPendingSend = false;
+            PendingPsbtBase64 = "";
             SendPreview = $"{Loc.Tr("msg.error")}: {DescribeError(ex)}";
         }
         await Task.CompletedTask;
@@ -103,6 +113,7 @@ public partial class MainWindowViewModel
             SendTo = SendAmount = "";
             _pendingSend = null;
             HasPendingSend = false;
+            PendingPsbtBase64 = "";
             await ConnectAndSync();
         }
         catch (Exception ex)
diff --git a/src/App/ViewModels/MainWindowViewModel.cs b/src/App/ViewModels/MainWindowViewModel.cs
index 4665ff1..b538981 100644
--- a/src/App/ViewModels/MainWindowViewModel.cs
+++ b/src/App/ViewModels/MainWindowViewModel.cs
@@ -201,6 +201,8 @@ public partial class MainWindowViewModel : ViewModelBase
         _lastTransactions = null;
         _pendingSend = null;
         HasPendingSend = false;
+        PendingPsbtBase64 = "";
+        OnPropertyChanged(nameof(IsWatchOnlyAccount));
         History.Clear();
         Contacts.Clear();
         SelectedContactInList = null;
diff --git a/src/App/Views/MainView.axaml b/src/App/Views/MainView.axaml
index 596faee..bdd815b 100644
--- a/src/App/Views/MainView.axaml
+++ b/src/App/Views/MainView.axaml
@@ -445,7 +445,7 @@
 
                         <!-- ── DESKTOP: Recipient | Amount side-by-side ── -->
                         <Grid IsVisible="{Binding IsDesktop}"
-                              RowDefinitions="Auto,Auto,Auto" RowSpacing="14">
+                              RowDefinitions="Auto,Auto,Auto,Auto" RowSpacing="14">
 
                             <Grid Grid.Row="0" ColumnDefinitions="*,*" ColumnSpacing="14">
                                 <!-- Recipient card -->
@@ -516,11 +516,29 @@
                                     <SelectableTextBlock Text="{Binding SendPreview}"
                                                          TextWrapping="Wrap" FontSize="13" Classes="mono"
                                                          Foreground="{DynamicResource TextSecondaryBrush}"/>
+                                    <StackPanel Spacing="6"
+                                                IsVisible="{Binding PendingPsbtBase64, Converter={x:Static StringConverters.IsNotNullOrEmpty}}">
+                                        <TextBlock Text="{Binding Loc[send.psbt.label]}" Classes="label"/>
+                                        <Grid ColumnDefinitions="*,Auto">
+                                            <TextBox Grid.Column="0" Text="{Binding PendingPsbtBase64}" IsReadOnly="True"
+                                                     FontFamily="monospace" FontSize="11" TextWrapping="Wrap"
+                                                     AcceptsReturn="True" Height="90"/>
+                                            <Button Grid.Column="1" Margin="8,0,0,0"
+                                                    Content="{Binding Loc[send.psbt.copy]}"
+                                                    Click="OnCopyPsbtClick"/>
+                                        </Grid>
+                                    </StackPanel>
                                 </StackPanel>
                             </Border>
 
+                            <!-- Watch-only notice -->
+                            <TextBlock Grid.Row="2" Text="{Binding Loc[send.watchonly.hint]}"
+                                       IsVisible="{Binding IsWatchOnlyAccount}"
+                                       TextWrapping="Wrap" FontSize="12"
+                                       Foreground="{DynamicResource WarningBrush}"/>
+
                             <!-- Action buttons -->
-                            <Grid Grid.Row="2" ColumnDefinitions="*,*" ColumnSpacing="14">
+                            <Grid Grid.Row="3" ColumnDefinitions="*,*" ColumnSpacing="14">
                                 <Button Grid.Column="0" Content="{Binding Loc[send.prepare]}"
                                         Command="{Binding PrepareSendCommand}"
                                         HorizontalAlignment="Stretch" HorizontalContentAlignment="Center"/>
@@ -620,9 +638,26 @@
                                     <SelectableTextBlock Text="{Binding SendPreview}"
                                                          TextWrapping="Wrap" FontSize="13" Classes="mono"
                                                          Foreground="{DynamicResource TextSecondaryBrush}"/>
+                                    <StackPanel Spacing="6"
+                                                IsVisible="{Binding PendingPsbtBase64, Converter={x:Static StringConverters.IsNotNullOrEmpty}}">
+                                        <TextBlock Text="{Binding Loc[send.psbt.label]}" Classes="label"/>
+                                        <TextBox Text="{Binding PendingPsbtBase64}" IsReadOnly="True"
+                                                 FontFamily="monospace" FontSize="11" TextWrapping="Wrap"
+                                                 AcceptsReturn="True" Height="90"/>
+                                        <Button Content="{Binding Loc[send.psbt.copy]}"
+                                                Click="OnCopyPsbtClick"
+                                                MinHeight="44"
+                                                HorizontalAlignment="Stretch" HorizontalContentAlignment="Center"/>
+                                    </StackPanel>
                                 </StackPanel>
                             </Border>
 
+                            <!-- Watch-only notice -->
+                            <TextBlock Text="{Binding Loc[send.watchonly.hint]}"
+                                       IsVisible="{Binding IsWatchOnlyAccount}"
+                                       TextWrapping="Wrap" FontSize="12"
+                                       Foreground="{DynamicResource WarningBrush}"/>
+
                             <!-- Action buttons: primary (Confirm) prominent, secondary below -->
                             <Button Content="{Binding Loc[send.confirm]}" Classes="accent"
                                     Command="{Binding ConfirmSendCommand}"
diff --git a/src/App/Views/MainView.axaml.cs b/src/App/Views/MainView.axaml.cs
index 795d871..5e489a7 100644
--- a/src/App/Views/MainView.axaml.cs
+++ b/src/App/Views/MainView.axaml.cs
@@ -102,6 +102,17 @@ public partial class MainView : UserControl
         }
     }
 
+    private async void OnCopyPsbtClick(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is not MainWindowViewModel vm || string.IsNullOrEmpty(vm.PendingPsbtBase64))
+            return;
+        if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
+        {
+            await clipboard.SetTextAsync(vm.PendingPsbtBase64);
+            vm.NotifyPsbtCopied();
+        }
+    }
+
     private void OnConnectionStatusTapped(object? sender, TappedEventArgs e)
     {
         if (DataContext is MainWindowViewModel vm)