The 10 Most Common Mistakes Veterans Make Filing for VA Compensation
Most claims that stall or fail do so for a small set of predictable reasons. Here are the ten mistakes that are in your control, what each one costs you, and how to avoid it, plus the three problems that are usually the VA's fault, not yours.
This ranking reflects how consistently each mistake shows up across VA guidance, veteran advocacy groups, and reporting. It is not a precise frequency count, because no public dataset ranks these by how often they actually happen.
These ten are the mistakes that are in your control. Some claim problems are actually the VA's errors, not yours. Those get their own section at the end, with how to spot and challenge them.
Expecting the VA to build your case for you In your control
A claim is not automatic. You have to prove three things: that you have the condition now (a current diagnosis), that something happened in service (an injury, event, or exposure), and that the two are connected (a medical link called a nexus). The most cited mistake is filing with thin records and assuming the VA will dig up the rest and connect the dots. The burden of evidence is on you.
Waiting to file, and skipping the Intent to File In your control
Two timing errors. Waiting because you feel "not bad enough yet" pushes back your effective date, which is the date your money starts and your back pay is figured from. And jumping straight to the full application without first filing an Intent to File (VA Form 21-0966) leaves money on the table. The Intent to File takes about five minutes, costs nothing, and can lock your effective date up to a year earlier while you gather evidence.
Forgetting secondary conditions In your control
A secondary condition is a new problem caused or worsened by one that is already service-connected. A service-connected knee injury that changes how you walk and wears out your hip. Medication for a service-connected illness that damages your stomach. Many veterans claim only the original condition. The same evidence often supports the secondary claim, and it can share the original condition's effective date.
Undermining your own C&P exam In your control
The Compensation and Pension exam (C&P exam) is where an examiner assesses your condition. Two self-inflicted wounds: missing the appointment, which can sink the claim, and "toughing it out" by downplaying symptoms on a good day. Your rating depends on documented frequency, duration, and how the condition affects work and daily life, not on how stoic you are.
Submitting incomplete or incorrect forms In your control
Blank fields, wrong dates, a missing signature, or the wrong form give the VA an easy reason to deny or send the claim back. Even small oversights can result in denials or requests for more evidence that push your claim back by weeks or months.
Giving up after a denial In your control
A denial is not a verdict that you do not deserve benefits. It usually means the evidence at that moment was not enough. You generally have one year from the decision to challenge it without losing your original effective date. If you win, benefits are paid back to your original claim date.
Choosing the wrong appeal lane, or missing the deadline In your control
When you disagree with a decision, you choose one of three paths. A Higher-Level Review is for when you think a mistake was made and you are not adding new evidence. A Supplemental Claim is for when you have new and relevant evidence. A Board Appeal sends it to the Board of Veterans' Appeals. Picking the wrong one wastes months. New evidence sent into a Higher-Level Review will not be considered, and missing the one-year window can reset your effective date.
Paying an unaccredited "claim shark" In your control
This is a large and growing trap. Only VA-accredited attorneys, claims agents, and Veterans Service Organizations may help with a claim for compensation, and no one may charge you to file an initial claim. "Claim sharks" are unaccredited companies that charge roughly $5,000 to $20,000 for help that accredited VSOs provide for free. They operate outside VA oversight and fee limits.
Misreading "VA math" and effective dates In your control
VA ratings do not add the way you expect. They combine using a formula, so a 50 percent and a 30 percent do not equal 80 percent. Veterans also misread effective dates. This one is partly on the VA: a VA Inspector General review found roughly 24 percent of early PACT Act claims had incorrect effective dates.
Leaving benefits on the table In your control
Two common omissions. First, hesitating to claim mental health conditions like PTSD, depression, or anxiety. Veterans often hold back on mental health claims. Second, not applying for Total Disability based on Individual Unemployability (TDIU), which can pay at the 100 percent rate when a service-connected condition keeps you from holding steady work, even if your combined rating is below 100 percent.
Before you blame yourself: problems that are usually the VA's
Not every denial or low rating is a veteran mistake. A blame-shaped checklist can make you feel you failed when the system did. Three VA-side errors to watch for and challenge:
The wrong effective date
As noted above, these are common, including on PACT Act claims (the VA OIG found roughly 24 percent of early PACT Act claims had incorrect effective dates). Compare the effective date on your decision letter to your Intent to File date or your day after discharge. If it is wrong, raise it on Higher-Level Review or file for an Earlier Effective Date.
A flawed C&P report
Examiners sometimes overlook symptoms, misread service records, or are not specialists in your condition. An inadequate exam can be challenged, and you can request a new one. See bad C&P examiner and how VA raters weigh medical opinions.
Benefit of the doubt ignored
By law, when the evidence for and against is roughly balanced, the tie goes to you (38 U.S.C. § 5107(b)). If the VA decided against you on a close call, that is a specific error you can point to on appeal.
This page reflects the rules as of May 2026. The "claim shark" area is changing quickly: several states passed laws in 2025 and 2026, and federal bills (the GUARD Act and the VA Claim Sharks Effective Warnings Act) were pending but not yet law when the VA had sent more than 40 warning letters to such companies over the prior decade. Forms, deadlines, and fee rules can change. Confirm current details at VA.gov and verify any representative in the accreditation database.
Sources
- VA.gov: How to file a VA disability claim.
- VA Form 21-0966, Intent to File a Claim for Compensation.
- VA Form 21-526EZ, Application for Disability Compensation.
- 38 CFR § 3.310: Secondary service connection.
- 38 CFR § 3.155: Intent to File and effective-date rules.
- 38 U.S.C. § 5107(b): Benefit-of-the-doubt rule.
- 38 CFR § 4.25: Combined ratings table (VA math).
- 38 CFR § 4.16: Total disability ratings for compensation based on unemployability (TDIU).
- VA.gov News (2019): Appeals Modernization, three lanes.
- VA Office of Inspector General: PACT Act effective-date findings (2024-2025 reports).
- VA Office of General Counsel accreditation search.
- MOAA: Stop VA Claim Sharks, Why MOAA Backs the GUARD VA Benefits Act.
- U.S. Senator Angus King: Protecting Veterans from Claim Sharks (press releases).
- The War Horse and NPR coverage: VA warning letters to veteran disability benefit companies.