diff --git a/packages/desktop-client/package.json b/packages/desktop-client/package.json
index 5fc2b635c4..bfc80f7a87 100644
--- a/packages/desktop-client/package.json
+++ b/packages/desktop-client/package.json
@@ -39,6 +39,7 @@
     "@testing-library/react": "16.3.0",
     "@testing-library/user-event": "14.6.1",
     "@types/lodash": "^4",
+    "@types/pikaday": "^1.7.10",
     "@types/promise-retry": "^1.1.6",
     "@types/react": "^19.2.5",
     "@types/react-dom": "^19.2.3",
diff --git a/packages/desktop-client/src/components/select/DateSelect.tsx b/packages/desktop-client/src/components/select/DateSelect.tsx
index 449ac3d4d4..7120b05ed7 100644
--- a/packages/desktop-client/src/components/select/DateSelect.tsx
+++ b/packages/desktop-client/src/components/select/DateSelect.tsx
@@ -1,5 +1,4 @@
-// @ts-strict-ignore
-import React, {
+import {
   forwardRef,
   useEffect,
   useEffectEvent,
@@ -9,7 +8,13 @@ import React, {
   useRef,
   useState,
 } from 'react';
-import type { ComponentProps, KeyboardEvent, Ref } from 'react';
+import type {
+  ChangeEvent,
+  ComponentProps,
+  JSX,
+  KeyboardEvent,
+  Ref,
+} from 'react';
 
 import { useResponsive } from '@actual-app/components/hooks/useResponsive';
 import { Input } from '@actual-app/components/input';
@@ -122,8 +127,8 @@ type DatePickerProps = {
   value: string;
   firstDayOfWeekIdx: string;
   dateFormat: string;
-  onUpdate?: (selectedDate: Date) => void;
-  onSelect: (selectedDate: Date | null) => void;
+  onUpdate: (selectedDate: Date) => void;
+  onSelect: (selectedDate: Date) => void;
 };
 
 type DatePickerForwardedRef = {
@@ -132,8 +137,8 @@ type DatePickerForwardedRef = {
 const DatePicker = forwardRef<DatePickerForwardedRef, DatePickerProps>(
   ({ value, firstDayOfWeekIdx, dateFormat, onUpdate, onSelect }, ref) => {
     const locale = useLocale();
-    const picker = useRef(null);
-    const mountPoint = useRef(null);
+    const picker = useRef<Pikaday | null>(null);
+    const mountPoint = useRef<HTMLDivElement | null>(null);
 
     const onUpdateEffect = useEffectEvent(onUpdate);
 
@@ -141,29 +146,32 @@ const DatePicker = forwardRef<DatePickerForwardedRef, DatePickerProps>(
       ref,
       () => ({
         handleInputKeyDown(e) {
+          const currentDate = picker.current?.getDate();
+          if (!currentDate) return;
+
           let newDate = null;
           switch (e.key) {
             case 'ArrowLeft':
               e.preventDefault();
-              newDate = subDays(picker.current.getDate(), 1);
+              newDate = subDays(currentDate, 1);
               break;
             case 'ArrowUp':
               e.preventDefault();
-              newDate = subDays(picker.current.getDate(), 7);
+              newDate = subDays(currentDate, 7);
               break;
             case 'ArrowRight':
               e.preventDefault();
-              newDate = addDays(picker.current.getDate(), 1);
+              newDate = addDays(currentDate, 1);
               break;
             case 'ArrowDown':
               e.preventDefault();
-              newDate = addDays(picker.current.getDate(), 7);
+              newDate = addDays(currentDate, 7);
               break;
             default:
           }
 
           if (newDate) {
-            picker.current.setDate(newDate, true);
+            picker.current?.setDate(newDate, true);
             onUpdateEffect?.(newDate);
           }
         },
@@ -194,16 +202,16 @@ const DatePicker = forwardRef<DatePickerForwardedRef, DatePickerProps>(
 
     useLayoutEffect(() => {
       picker.current = initPikaday();
-      mountPoint.current.appendChild(picker.current.el);
+      mountPoint.current?.appendChild(picker.current.el);
 
       return () => {
-        picker.current.destroy();
+        picker.current?.destroy();
       };
     }, []);
 
     useEffect(() => {
-      if (value && picker.current.getDate() !== value) {
-        picker.current.setDate(parse(value, dateFormat, new Date()), true);
+      if (value) {
+        picker.current?.setDate(parse(value, dateFormat, new Date()), true);
       }
     }, [value, dateFormat]);
 
@@ -218,7 +226,7 @@ const DatePicker = forwardRef<DatePickerForwardedRef, DatePickerProps>(
 
 DatePicker.displayName = 'DatePicker';
 
-function defaultShouldSaveFromKey(e) {
+function defaultShouldSaveFromKey(e: KeyboardEvent<HTMLInputElement>) {
   return e.key === 'Enter';
 }
 
@@ -263,7 +271,7 @@ function DateSelectDesktop({
     return '';
   }, [defaultValue, dateFormat]);
 
-  const picker = useRef(null);
+  const picker = useRef<DatePickerForwardedRef | null>(null);
   const [value, setValue] = useState(parsedDefaultValue);
   const [open, setOpen] = useState(embedded || isOpen || false);
   const innerRef = useRef<HTMLInputElement | null>(null);
@@ -315,7 +323,7 @@ function DateSelectDesktop({
       !e.altKey &&
       open
     ) {
-      picker.current.handleInputKeyDown(e);
+      picker.current?.handleInputKeyDown(e);
     } else if (e.key === 'Escape') {
       setValue(parsedDefaultValue);
       setSelectedValue(parsedDefaultValue);
@@ -357,11 +365,11 @@ function DateSelectDesktop({
     }
   }
 
-  function onChange(e) {
+  function onChange(e: ChangeEvent<HTMLInputElement>) {
     setValue(e.target.value);
   }
 
-  const maybeWrapTooltip = content => {
+  const maybeWrapTooltip = (content: JSX.Element) => {
     if (embedded) {
       return open ? content : null;
     }
@@ -413,8 +421,8 @@ function DateSelectDesktop({
             // Otherwise the input is reset to whatever is already
             // selected
             if (value === '') {
-              setSelectedValue(null);
-              onSelect(null);
+              setSelectedValue('');
+              onSelect('');
             } else {
               setValue(selectedValue || '');
 
diff --git a/upcoming-release-notes/6905.md b/upcoming-release-notes/6905.md
new file mode 100644
index 0000000000..01ce3ff6f0
--- /dev/null
+++ b/upcoming-release-notes/6905.md
@@ -0,0 +1,6 @@
+---
+category: Bugfixes
+authors: [rznn7]
+---
+
+Fix crash when setting a rule date field and leaving it empty
diff --git a/yarn.lock b/yarn.lock
index c740fbc2a2..1ec4be62a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -161,6 +161,7 @@ __metadata:
     "@testing-library/react": "npm:16.3.0"
     "@testing-library/user-event": "npm:14.6.1"
     "@types/lodash": "npm:^4"
+    "@types/pikaday": "npm:^1.7.10"
     "@types/promise-retry": "npm:^1.1.6"
     "@types/react": "npm:^19.2.5"
     "@types/react-dom": "npm:^19.2.3"
@@ -9431,6 +9432,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/pikaday@npm:^1.7.10":
+  version: 1.7.10
+  resolution: "@types/pikaday@npm:1.7.10"
+  dependencies:
+    moment: "npm:>=2.29.2"
+  checksum: 10/638bc31725f4663c6266bb527d34d08740d8dc98c1c71efe53ef5bc63e177718e960f96f2719ee97f18ec7caf15e9f70d225e07f4d9ae1235384bb6da31a34a7
+  languageName: node
+  linkType: hard
+
 "@types/plist@npm:^3.0.1":
   version: 3.0.5
   resolution: "@types/plist@npm:3.0.5"
@@ -20768,6 +20778,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"moment@npm:>=2.29.2":
+  version: 2.30.1
+  resolution: "moment@npm:2.30.1"
+  checksum: 10/ae42d876d4ec831ef66110bdc302c0657c664991e45cf2afffc4b0f6cd6d251dde11375c982a5c0564ccc0fa593fc564576ddceb8c8845e87c15f58aa6baca69
+  languageName: node
+  linkType: hard
+
 "mrmime@npm:^2.0.0":
   version: 2.0.1
   resolution: "mrmime@npm:2.0.1"