diff --git a/TODO b/TODO
index 453af88..27f8386 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,6 @@
 UI:
+    increase lhs / decrease rhs - add column to bill_type for "2025 Cost"
+        - use to work out why bills by hand and bills calc a few hundred dollars out.
 
 For bills:
         [DONE] - calculate pragmatic min/avg/max/simple