diff --git a/e2e/tests/recurring/repeat-config-due-date-6766.spec.ts b/e2e/tests/recurring/repeat-config-due-date-6766.spec.ts
new file mode 100644
index 0000000000..d04f3967d0
--- /dev/null
+++ b/e2e/tests/recurring/repeat-config-due-date-6766.spec.ts
@@ -0,0 +1,192 @@
+import { test, expect } from '../../fixtures/test.fixture';
+
+/**
+ * Bug: https://github.com/super-productivity/super-productivity/issues/6766
+ *
+ * When creating a recurring task config for a task that has a scheduled due date,
+ * the quick setting dropdown labels show the current date instead of the task's
+ * due date. For example, if a task is scheduled for May 1st, the dropdown shows
+ * "Every year on the 15.03." (today) instead of "Every year on the 1.5." (due date).
+ */
+test.describe('Repeat config uses due date for labels (#6766)', () => {
+  test('should show due date in quick setting labels, not current date', async ({
+    page,
+    workViewPage,
+    taskPage,
+  }) => {
+    await workViewPage.waitForTaskList();
+
+    // Step 1: Create a task
+    const taskTitle = 'Repeat Due Date Test';
+    await workViewPage.addTask(taskTitle);
+
+    const task = taskPage.getTaskByText(taskTitle).first();
+    await expect(task).toBeVisible({ timeout: 10000 });
+
+    // Step 2: Open task detail panel
+    await task.hover();
+    const detailBtn = task.locator('.show-additional-info-btn').first();
+    await detailBtn.waitFor({ state: 'visible', timeout: 5000 });
+    await detailBtn.click();
+    await page
+      .locator('task-detail-panel')
+      .first()
+      .waitFor({ state: 'visible', timeout: 10000 });
+
+    // Step 3: Open the schedule dialog via "Planned for" item
+    const planItem = page.locator('task-detail-item').filter({
+      hasText: /Planned for/,
+    });
+    await planItem.waitFor({ state: 'visible', timeout: 5000 });
+    await planItem.click();
+
+    // Step 4: Schedule to the 1st of next month via the calendar
+    const dialog = page.locator('mat-dialog-container');
+    await dialog.waitFor({ state: 'visible', timeout: 10000 });
+
+    // Navigate to next month
+    const nextMonthBtn = dialog.getByRole('button', { name: /next month/i });
+    await nextMonthBtn.click();
+    await page.waitForTimeout(300);
+
+    // Click on day 1 of next month
+    const day1 = dialog
+      .locator('button.mat-calendar-body-cell')
+      .getByText('1', { exact: true })
+      .first();
+    await day1.click();
+
+    // Submit
+    await page.waitForTimeout(300);
+    const scheduleBtn = dialog.getByRole('button', { name: 'Schedule', exact: true });
+    await scheduleBtn.click();
+    await dialog.waitFor({ state: 'hidden', timeout: 10000 });
+
+    // Step 5: Task moved to future — navigate to Planner to find it
+    await page.locator('a').filter({ hasText: 'Planner' }).click();
+    await page.waitForTimeout(1000);
+
+    // Find the task in the planner view
+    const plannerTask = page.locator('planner-task, task').filter({ hasText: taskTitle }).first();
+    await expect(plannerTask).toBeVisible({ timeout: 10000 });
+
+    // Click on it to select and open detail panel
+    await plannerTask.click();
+    await page.waitForTimeout(500);
+
+    // Step 6: Open the repeat config dialog via "Recur" item in the detail panel
+    const repeatItem = page.locator('task-detail-item').filter({
+      has: page.locator('mat-icon[svgIcon="repeat"]'),
+    });
+    await repeatItem.waitFor({ state: 'visible', timeout: 10000 });
+    await repeatItem.click();
+
+    // Step 7: Wait for the repeat config dialog
+    const repeatDialog = page.locator('mat-dialog-container');
+    await repeatDialog.waitFor({ state: 'visible', timeout: 10000 });
+    await expect(repeatDialog.locator('h1')).toContainText('Add Recurring Task Config');
+
+    // Step 8: Open the "Recurring Config" dropdown
+    const quickSettingSelect = repeatDialog.locator('mat-select').first();
+    await quickSettingSelect.click();
+
+    const options = page.locator('.cdk-overlay-pane mat-option');
+    await options.first().waitFor({ state: 'visible', timeout: 5000 });
+
+    // Step 9: Verify labels use the scheduled date (1st of next month), not today
+    const today = new Date();
+    const todayDay = today.getDate();
+
+    // The monthly option should say "Every month on the day 1" (the 1st)
+    const monthlyOption = options.filter({ hasText: /Every month/ });
+    const monthlyText = await monthlyOption.textContent();
+    expect(monthlyText).toContain('Every month on the day 1');
+
+    // Today is the 15th — if the bug exists, it would show "day 15" instead of "day 1"
+    if (todayDay !== 1) {
+      expect(monthlyText).not.toContain(`day ${todayDay}`);
+    }
+  });
+
+  test('should preserve due date in labels after selecting a quick setting', async ({
+    page,
+    workViewPage,
+    taskPage,
+  }) => {
+    await workViewPage.waitForTaskList();
+
+    // Step 1: Create and schedule task for 1st of next month
+    const taskTitle = 'Repeat Select Test';
+    await workViewPage.addTask(taskTitle);
+
+    const task = taskPage.getTaskByText(taskTitle).first();
+    await expect(task).toBeVisible({ timeout: 10000 });
+
+    await task.hover();
+    const detailBtn = task.locator('.show-additional-info-btn').first();
+    await detailBtn.waitFor({ state: 'visible', timeout: 5000 });
+    await detailBtn.click();
+    await page.locator('task-detail-panel').first().waitFor({ state: 'visible', timeout: 10000 });
+
+    const planItem = page.locator('task-detail-item').filter({ hasText: /Planned for/ });
+    await planItem.waitFor({ state: 'visible', timeout: 5000 });
+    await planItem.click();
+
+    const dialog = page.locator('mat-dialog-container');
+    await dialog.waitFor({ state: 'visible', timeout: 10000 });
+    await dialog.getByRole('button', { name: /next month/i }).click();
+    await page.waitForTimeout(300);
+    const day1 = dialog.locator('button.mat-calendar-body-cell').getByText('1', { exact: true }).first();
+    await day1.click();
+    await page.waitForTimeout(300);
+    await dialog.getByRole('button', { name: 'Schedule', exact: true }).click();
+    await dialog.waitFor({ state: 'hidden', timeout: 10000 });
+
+    // Navigate to planner to find the task
+    await page.locator('a').filter({ hasText: 'Planner' }).click();
+    await page.waitForTimeout(1000);
+    const plannerTask = page.locator('planner-task, task').filter({ hasText: taskTitle }).first();
+    await expect(plannerTask).toBeVisible({ timeout: 10000 });
+    await plannerTask.click();
+    await page.waitForTimeout(500);
+
+    // Open repeat config dialog
+    const repeatItem = page.locator('task-detail-item').filter({
+      has: page.locator('mat-icon[svgIcon="repeat"]'),
+    });
+    await repeatItem.waitFor({ state: 'visible', timeout: 10000 });
+    await repeatItem.click();
+
+    const repeatDialog = page.locator('mat-dialog-container');
+    await repeatDialog.waitFor({ state: 'visible', timeout: 10000 });
+
+    // Step 2: Select "Every month on the day 1" from the dropdown
+    const quickSettingSelect = repeatDialog.locator('mat-select').first();
+    await quickSettingSelect.click();
+
+    let options = page.locator('.cdk-overlay-pane mat-option');
+    await options.first().waitFor({ state: 'visible', timeout: 5000 });
+
+    // Select the monthly option
+    const monthlyOption = options.filter({ hasText: /Every month/ });
+    await monthlyOption.click();
+    await page.waitForTimeout(500);
+
+    // Step 3: Re-open dropdown and check labels are STILL using the due date
+    await quickSettingSelect.click();
+    options = page.locator('.cdk-overlay-pane mat-option');
+    await options.first().waitFor({ state: 'visible', timeout: 5000 });
+
+    const monthlyTextAfter = await options.filter({ hasText: /Every month/ }).textContent();
+    const yearlyTextAfter = await options.filter({ hasText: /Every year/ }).textContent();
+
+    // After selecting monthly, the startDate should still reference the 1st
+    // BUG: without the fix in task-repeat-cfg-form.const.ts, selecting a quick setting
+    // overwrites startDate with today's date, causing labels to switch to today
+    const todayDay = new Date().getDate();
+    expect(monthlyTextAfter).toContain('Every month on the day 1');
+    if (todayDay !== 1) {
+      expect(monthlyTextAfter).not.toContain(`day ${todayDay}`);
+    }
+  });
+});
diff --git a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.spec.ts b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.spec.ts
index cdc3f0110d..42c8e68d22 100644
--- a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.spec.ts
+++ b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.spec.ts
@@ -261,6 +261,36 @@ describe('DialogEditTaskRepeatCfgComponent', () => {
       expect(yearlyCall!.params.dayAndMonthStr).toBe(expectedDayAndMonthStr);
     });
 
+    it('should use dueWithTime when task has no dueDay', async () => {
+      // May 1st 2026 at noon local time
+      const may1Noon = new Date(2026, 4, 1, 12, 0, 0).getTime();
+      const taskWithDueWithTime = {
+        ...mockTask,
+        dueDay: undefined,
+        dueWithTime: may1Noon,
+      } as unknown as TaskCopy;
+
+      const fixture = await setupTestBed({ task: taskWithDueWithTime });
+      const translateService = TestBed.inject(TranslateService);
+      const instantCalls: { key: string; params: any }[] = [];
+      spyOn(translateService, 'instant').and.callFake((key: any, params?: any) => {
+        instantCalls.push({ key, params });
+        return key;
+      });
+
+      (fixture.componentInstance as any)._initializeFormConfig();
+
+      const monthlyCall = instantCalls.find(
+        (c) => c.key === T.F.TASK_REPEAT.F.Q_MONTHLY_CURRENT_DATE,
+      );
+
+      const dueDate = new Date(may1Noon);
+      const expectedDayStr = dueDate.toLocaleDateString('en-US', { day: 'numeric' });
+
+      expect(monthlyCall).toBeDefined();
+      expect(monthlyCall!.params.dateDayStr).toBe(expectedDayStr);
+    });
+
     it('should pass today day/month to translate when task has no due date', async () => {
       const taskNoDueDate = {
         ...mockTask,
diff --git a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.ts b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.ts
index a53f82acd8..a3b8be0e8b 100644
--- a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.ts
+++ b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/dialog-edit-task-repeat-cfg.component.ts
@@ -375,8 +375,12 @@ export class DialogEditTaskRepeatCfgComponent {
   }
 
   private _getReferenceDate(): Date {
-    if (this._data.task?.dueDay) {
-      return dateStrToUtcDate(this._data.task.dueDay);
+    const task = this._data.task;
+    if (task?.dueDay) {
+      return dateStrToUtcDate(task.dueDay);
+    }
+    if (task?.dueWithTime) {
+      return new Date(task.dueWithTime);
     }
     if (this._data.repeatCfg?.startDate) {
       return dateStrToUtcDate(this._data.repeatCfg.startDate);
diff --git a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/task-repeat-cfg-form.const.ts b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/task-repeat-cfg-form.const.ts
index 17d5da3ae2..b3bb817be4 100644
--- a/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/task-repeat-cfg-form.const.ts
+++ b/src/app/features/task-repeat-cfg/dialog-edit-task-repeat-cfg/task-repeat-cfg-form.const.ts
@@ -3,6 +3,7 @@ import { T } from '../../../t.const';
 import { isValidSplitTime } from '../../../util/is-valid-split-time';
 import { TASK_REMINDER_OPTIONS } from '../../planner/dialog-schedule-task/task-reminder-options.const';
 import { getDbDateStr } from '../../../util/get-db-date-str';
+import { dateStrToUtcDate } from '../../../util/date-str-to-utc-date';
 import { RepeatQuickSetting, TaskRepeatCfg } from '../task-repeat-cfg.model';
 import { getQuickSettingUpdates } from './get-quick-setting-updates';
 import { TaskReminderOptionId } from '../../tasks/task.model';
@@ -36,8 +37,13 @@ export const TASK_REPEAT_CFG_ESSENTIAL_FORM_CFG: FormlyFieldConfig[] = [
       // NOTE replaced in component to allow for dynamic translation
       options: [],
       change: (field, event) => {
+        const currentStartDate = field.model?.startDate;
+        const referenceDate = currentStartDate
+          ? dateStrToUtcDate(currentStartDate)
+          : undefined;
         const updatesForQuickSetting = getQuickSettingUpdates(
           event.value as RepeatQuickSetting,
+          referenceDate,
         );
         if (updatesForQuickSetting) {
           // NOTE: for some reason this doesn't update the model value, just the view value :(