A Clear and Unmistakable Error (CUE) is the rarest and most powerful tool in the appeals arsenal. It attacks a final VA decision — one you never appealed — and, if proven, moves your effective date back to the date of that original error. That can mean years of retroactive back pay.
The standard is deliberately brutal
CUE is not “the VA should have weighed the evidence differently.” It is an error so obvious that reasonable minds could not disagree: the rater applied the wrong regulation, ignored evidence that was in the file, or misstated a fact that changed the outcome.
Where we find CUE
- The correct law existed at the time and was not applied
- Favorable evidence sat in the file and was never addressed
- A clear mathematical or rating-schedule error changed the percentage
Because the stakes are years of retro pay, a CUE motion has to be built with precision. One vague argument and it is denied — and CUE on the same issue generally cannot be raised twice.