What is a CUE claim?
A Clear and Unmistakable Error (CUE) claim asks the VA to revise a prior final decision because it contained an error so obvious that, had it not been made, the result would have been manifestly different. The authority is 38 CFR § 3.105. When a CUE is found, the decision is reversed or amended as if the correct decision had been made on the original date — which can move an effective date back years and produce a substantial retroactive award.
That retroactive power is exactly why the standard is so demanding. A CUE is not a disagreement, a re-weighing of the evidence, or a second opinion — it is a claim that the original decision was undebatably wrong on the record that existed at the time.
CUE is judged on the record and law as they existed when the decision was made. New evidence or a later change in the law cannot support a CUE — that's what a new claim or a supplemental claim is for.
When can you file?
There is no time limit on filing a CUE. A decision from the 1980s can be challenged today, as long as it became final (the appeal window closed without an appeal, or it was decided on appeal). That permanence is unusual in the VA system and is one reason CUE matters — there is no deadline that closes the door on a genuine error.
But the trade-off is the bar: the error must be undebatable, of fact or law, and it must be the kind of error that changed the outcome. A harmless mistake, or one where reasonable adjudicators could disagree, is not CUE.
CUE is rare — and hard to prove
Most denials are notCUE. If the rater weighed conflicting evidence and reached a defensible call, there is no CUE — even if you'd have weighed it differently. CUE is reserved for the narrow cases where the error is so clear that no reasonable adjudicator could disagree it was wrong. Going in with realistic expectations matters: for most situations, a supplemental claim or appeal is the better path.
Common grounds for CUE
When a CUE does exist, it usually falls into one of a few recognizable patterns:
- The rater misapplied or ignored a regulation that was in effect at the time.
- The rater overlooked evidence that was already in the file when the decision was made.
- An incorrect effective date was assigned, contrary to the dates the record clearly showed.
- The decision rests on a factual finding that is plainly contradicted by the record.
CUE vs. not CUE
The line between a winnable CUE and a non-starter is the difference between an undebatable error and a disagreement:
Could be CUE
- A regulation in force was applied incorrectly, changing the result
- Evidence already in the file was clearly never considered
- The effective date contradicts dates plainly in the record
- A finding of fact is flatly contradicted by the documents
Not CUE
- You disagree with how the rater weighed the evidence
- New evidence has come to light since the decision
- The law changed after the decision was made
- The error wouldn't have changed the outcome
How VA Claim Commander's CUE detection engine helps
Spotting a CUE means reading an old decision letter against the regulations and the record that existed at the time — slow, technical work. VA Claim Commander's CUE detection engine does the first pass:
- It parses your decision letter and extracts the rater's findings, the regulations cited, and the effective dates assigned.
- It flags potential issues — a regulation that may have been misapplied, evidence the decision doesn't appear to address, or an effective date that looks inconsistent with the record.
- It explains, in plain language, why each flag might rise to CUE — and, just as importantly, when it likely does not.
- It organizes what it finds so you can bring a focused question to a VSO or accredited representative instead of a stack of paper.
A flag is a starting point, not a verdict
A potential issue the engine flags is exactly that — potential. Whether a flagged issue actually meets the CUE standard is a legal judgment, and given the high bar and the retroactive stakes, a CUE motion is the kind of claim that benefits most from a VA-accredited representative. VA Claim Commander helps you see and organize possible errors; it does not decide that a CUE exists or guarantee any outcome.
Questions about your specific decision?
A VA-accredited Veterans Service Officer (VSO) provides free, personalized assistance with your claim — including reviewing past decisions and filing CUE motions. Find an accredited representative on VA.gov →
This article is educational information about the VA claims system — it is not legal advice, and it does not predict or promise any claim outcome. Whether a clear and unmistakable error exists is a legal determination made solely by VA adjudicators based on the record and law in effect at the time of the original decision. VA Claim Commander is a self-service documentation tool, not a VSO, law firm, or VA-accredited representative.
Check an old decision for errors
Run a past decision letter through the CUE detection engine to see what's worth a closer look — free before you pay a dime.
Open the tool