diff --git a/src/routes/settings.import.tsx b/src/routes/settings.import.tsx
index cb0af55..dab5b7a 100644
--- a/src/routes/settings.import.tsx
+++ b/src/routes/settings.import.tsx
@@ -84,8 +84,25 @@ const toBool = (v: any) => {
 
 const toNum = (v: any) => {
   if (v === "" || v == null) return null;
-  const n = Number(String(v).replace(/[$,]/g, ""));
-  return isNaN(n) ? null : n;
+  if (typeof v === "number") return isNaN(v) ? null : v;
+  let s = String(v).trim();
+  if (!s) return null;
+  // Accounting negatives: (123.45) → -123.45
+  let negative = false;
+  if (/^\(.*\)$/.test(s)) {
+    negative = true;
+    s = s.slice(1, -1);
+  }
+  // Strip currency symbols, commas, spaces, and stray non-numeric chars (keep . and -)
+  s = s.replace(/[$£€¥,\s]/g, "");
+  if (s.endsWith("-")) {
+    // trailing minus (e.g. "100-")
+    negative = true;
+    s = s.slice(0, -1);
+  }
+  const n = Number(s);
+  if (isNaN(n)) return null;
+  return negative ? -n : n;
 };
 
 const toDate = (v: any): string | null => {