I am trying to update the my total miles but the site won't let me.

I'm here to assist you with updating the total miles in your QuickBooks Self-Employed account, @gmarks40.

It's important to note that you can only make changes to a mileage trip from the Reviewed tab. Once you've made your edits, your total miles will be automatically updated.

Here's a step-by-step guide:

1. Navigate to the Miles or Mileage menu and select the Reviewed tab.
2. Locate the trip you want to edit and click on it.
3. Select the Edit option.
4. Update the miles as needed, then click Save.

1. Go to the Miles or Mileage menu and select the Reviewed tab.
2. Find and select the trip and click Edit.
3. Update the miles. Then select Save.

For more detailed instructions on manually adding or editing trips, please refer to this article:

Check this article for more information about adding a trip manually, editing, and existing trip: Manually track mileage in QuickBooks Self-Employed. 

Additionally, if you prefer automatic mileage tracking, here's how you can set it up: Automatically track mileage in QuickBooks Self-Employed. 

Feel free to reach out if you require further assistance with updating the total miles. I'm here to help. Have a wonderful day!