The benefit of the doubt doctrine under 38 USC 5107(b) and 38 CFR 3.102 is one of the most important legal protections for veterans. It states that when the evidence for and against a claim is in approximate balance — roughly 50/50 — the VA must resolve the doubt in the veteran's favor and grant the claim.
This is a lower standard than what most people encounter in everyday life. You do not need to prove your case beyond a reasonable doubt like in criminal law. You do not need to prove it by a preponderance of the evidence like in civil law. You only need to get the evidence to a roughly even balance, and the law tips the scale in your direction.
In practice, the benefit of the doubt applies in several scenarios. For service connection, if the medical evidence is split — one doctor says your condition is related to service and another says it is not — the VA should resolve the doubt in your favor and grant service connection. For rating levels, if your symptoms fall somewhere between two rating percentages and the evidence could support either one, the VA should assign the higher rating under 38 CFR 4.7.
The benefit of the doubt doctrine is the reason that a well-written private nexus opinion can be so powerful. Even if the C&P examiner provides a negative opinion, submitting a favorable private opinion creates an approximate balance that should trigger the benefit of the doubt.
The doctrine does not help when the evidence clearly weighs against you. If the medical evidence overwhelmingly indicates no connection to service, the benefit of the doubt does not create a connection where none reasonably exists.
When reviewing your rating decision, look for whether the rater discussed the benefit of the doubt. The decision should explicitly state whether this doctrine was considered and applied. If the evidence in your file is close to evenly balanced and the decision does not address the benefit of the doubt, this is an error you can raise in an appeal.
Invoking the benefit of the doubt in your own statements is appropriate. When submitting evidence or personal statements, you can explicitly note that the evidence is in approximate balance and request that the benefit of the doubt be applied in your favor.
Note: This article references sections of the VA's M21-1 Adjudication Procedures Manual. The VA periodically reorganizes the M21-1 and section numbers may have changed since this article was written. For the most current section references, visit the VA's public M21-1 Web Automated Reference Material System (WARMS).