diff --git a/src/components/invoices/generate-invoice-dialog.tsx b/src/components/invoices/generate-invoice-dialog.tsx
index 1dff29a..e4ad656 100644
--- a/src/components/invoices/generate-invoice-dialog.tsx
+++ b/src/components/invoices/generate-invoice-dialog.tsx
@@ -177,39 +177,27 @@ export function GenerateInvoiceDialog({ open, onOpenChange, clientId, clientName
           <DialogTitle>Generate invoice — {clientName}</DialogTitle>
         </DialogHeader>
 
-        {loading ? (
-          <div className="py-8 text-center text-muted-foreground">Loading unbilled work…</div>
-        ) : cases.length === 0 ? (
-          <div className="py-8 text-center text-muted-foreground text-sm">
-            No unbilled time or expenses across this client's cases.
-          </div>
-        ) : (
-          <div className="space-y-4">
-            <div>
-              <Label className="text-xs uppercase tracking-wider text-muted-foreground">Cases to bill</Label>
-              <div className="mt-2 border rounded-md divide-y max-h-[260px] overflow-auto">
-                {cases.map((c) => (
-                  <label key={c.id} className="flex items-start gap-3 p-3 cursor-pointer hover:bg-muted/40">
-                    <Checkbox
-                      checked={!!selected[c.id]}
-                      onCheckedChange={(v) => setSelected((p) => ({ ...p, [c.id]: !!v }))}
-                      className="mt-0.5"
-                    />
-                    <div className="flex-1 min-w-0">
-                      <div className="flex items-center justify-between gap-2">
-                        <span className="font-medium text-sm truncate">{c.title}</span>
-                        <span className="text-sm tabular-nums font-medium">{formatCurrency(c.total)}</span>
-                      </div>
-                      <div className="text-xs text-muted-foreground">
-                        {c.case_number} · {c.timeCount} time entries ({formatCurrency(c.timeAmount)}) · {c.expenseCount} expenses ({formatCurrency(c.expenseAmount)})
-                      </div>
-                    </div>
-                  </label>
-                ))}
+        <div className="space-y-4">
+          <label className="flex items-start gap-3 p-3 rounded-md border cursor-pointer hover:bg-muted/40">
+            <Checkbox
+              checked={isRetainer}
+              onCheckedChange={(v) => setIsRetainer(!!v)}
+              className="mt-0.5"
+            />
+            <div className="flex-1">
+              <div className="text-sm font-medium">Retainer / trust deposit invoice</div>
+              <div className="text-xs text-muted-foreground">
+                When paid, the amount is automatically deposited into this client's trust account.
               </div>
             </div>
+          </label>
 
+          {isRetainer ? (
             <div className="grid grid-cols-3 gap-3">
+              <div>
+                <Label>Retainer amount</Label>
+                <Input id="retainer-amount" type="number" step="0.01" placeholder="0.00" />
+              </div>
               <div>
                 <Label>Tax rate (%)</Label>
                 <Input type="number" step="0.01" value={taxPct} onChange={(e) => setTaxPct(e.target.value)} />
@@ -218,27 +206,73 @@ export function GenerateInvoiceDialog({ open, onOpenChange, clientId, clientName
                 <Label>Due in (days)</Label>
                 <Input type="number" value={dueDays} onChange={(e) => setDueDays(e.target.value)} />
               </div>
-              <div className="col-span-1 flex items-end justify-end">
-                <div className="text-right">
-                  <div className="text-[10px] uppercase tracking-wider text-muted-foreground">Estimated total</div>
-                  <div className="font-serif text-xl">{formatCurrency(total)}</div>
-                  {tax > 0 && <div className="text-[11px] text-muted-foreground">{formatCurrency(subtotal)} + {formatCurrency(tax)} tax</div>}
+            </div>
+          ) : loading ? (
+            <div className="py-8 text-center text-muted-foreground">Loading unbilled work…</div>
+          ) : cases.length === 0 ? (
+            <div className="py-8 text-center text-muted-foreground text-sm">
+              No unbilled time or expenses across this client's cases.
+            </div>
+          ) : (
+            <>
+              <div>
+                <Label className="text-xs uppercase tracking-wider text-muted-foreground">Cases to bill</Label>
+                <div className="mt-2 border rounded-md divide-y max-h-[260px] overflow-auto">
+                  {cases.map((c) => (
+                    <label key={c.id} className="flex items-start gap-3 p-3 cursor-pointer hover:bg-muted/40">
+                      <Checkbox
+                        checked={!!selected[c.id]}
+                        onCheckedChange={(v) => setSelected((p) => ({ ...p, [c.id]: !!v }))}
+                        className="mt-0.5"
+                      />
+                      <div className="flex-1 min-w-0">
+                        <div className="flex items-center justify-between gap-2">
+                          <span className="font-medium text-sm truncate">{c.title}</span>
+                          <span className="text-sm tabular-nums font-medium">{formatCurrency(c.total)}</span>
+                        </div>
+                        <div className="text-xs text-muted-foreground">
+                          {c.case_number} · {c.timeCount} time entries ({formatCurrency(c.timeAmount)}) · {c.expenseCount} expenses ({formatCurrency(c.expenseAmount)})
+                        </div>
+                      </div>
+                    </label>
+                  ))}
                 </div>
               </div>
-            </div>
 
-            <div>
-              <Label>Notes (optional)</Label>
-              <Textarea rows={2} value={notes} onChange={(e) => setNotes(e.target.value)} placeholder="Payment terms, thank-you message…" />
-            </div>
+              <div className="grid grid-cols-3 gap-3">
+                <div>
+                  <Label>Tax rate (%)</Label>
+                  <Input type="number" step="0.01" value={taxPct} onChange={(e) => setTaxPct(e.target.value)} />
+                </div>
+                <div>
+                  <Label>Due in (days)</Label>
+                  <Input type="number" value={dueDays} onChange={(e) => setDueDays(e.target.value)} />
+                </div>
+                <div className="col-span-1 flex items-end justify-end">
+                  <div className="text-right">
+                    <div className="text-[10px] uppercase tracking-wider text-muted-foreground">Estimated total</div>
+                    <div className="font-serif text-xl">{formatCurrency(total)}</div>
+                    {tax > 0 && <div className="text-[11px] text-muted-foreground">{formatCurrency(subtotal)} + {formatCurrency(tax)} tax</div>}
+                  </div>
+                </div>
+              </div>
+            </>
+          )}
+
+          <div>
+            <Label>Notes (optional)</Label>
+            <Textarea rows={2} value={notes} onChange={(e) => setNotes(e.target.value)} placeholder="Payment terms, thank-you message…" />
           </div>
-        )}
+        </div>
 
         <DialogFooter>
           <Button variant="outline" onClick={() => onOpenChange(false)}>Cancel</Button>
-          <Button onClick={submit} disabled={saving || cases.length === 0 || selectedIds.length === 0}>
+          <Button
+            onClick={submit}
+            disabled={saving || (!isRetainer && (cases.length === 0 || selectedIds.length === 0))}
+          >
             {saving ? <Loader2 className="h-4 w-4 mr-2 animate-spin" /> : <FilePlus className="h-4 w-4 mr-2" />}
-            Generate draft invoice
+            {isRetainer ? "Create retainer invoice" : "Generate draft invoice"}
           </Button>
         </DialogFooter>
       </DialogContent>