Why VA Denies TDIU Claims — and How to Win on Appeal
Posted by Gregory M. Rada | March 28, 2026 | Firm News
If VA denied your TDIU claim, you’re not alone — and the denial may not be correct. TDIU claims are among the most frequently denied benefits in the VA system, and the reasons follow a pattern. VA raters apply the wrong legal standard, ignore relevant evidence, or rely on C&P exam opinions from examiners who aren’t qualified to assess employability. The result is a denial letter that sounds authoritative but doesn’t hold up on appeal. Understanding why VA denied your claim is the first step toward overturning it. Here are the five most common reasons VA denies TDIU — and what you can do about each one.
Table of Contents
- VA Says You Can Do Sedentary Work
- VA Blames Non-Service-Connected Conditions
- VA Treats Marginal Employment as Gainful
- The C&P Exam Doesn’t Consider the Whole Picture
- VA Ignores Your Education and Work History
- What to Do After a TDIU Denial
“You Can Do Sedentary Work”
This is the most common reason VA denies TDIU, and it’s often the most wrong. The denial letter or C&P exam will acknowledge that the veteran can’t do physical labor — can’t stand for long periods, can’t lift, can’t perform the kind of work they’ve done their entire career — but then conclude that the veteran is “capable of sedentary employment.” Desk work. Phone-based jobs. Something where you sit down.
The problem is that VA examiners are medical professionals, not vocational experts. They’re qualified to assess what your body and mind can and cannot do. They are not qualified to determine whether those limitations translate into an inability to find and keep a real job. A C&P examiner who writes “the veteran can perform sedentary work” is making a vocational conclusion they aren’t trained to make — and the Board of Veterans’ Appeals has recognized this distinction repeatedly.
More importantly, VA is required under Cathell v. Brown, 8 Vet. App. 539 (1996), to consider the veteran’s actual education, training, and occupational history when evaluating employability. If you’ve spent 25 years as an electrician, a plumber, or an infantry soldier, VA can’t simply assert you could work a desk job without explaining how — given your specific background — that’s realistic. A veteran with a high school education and decades of physical labor experience isn’t interchangeable with someone who has an office-work background, and VA can’t pretend otherwise.
This is where vocational expert opinions become critical. An expert who evaluates your functional limitations alongside your actual work history and education can provide the evidence VA lacks — and that opinion often tips the balance on appeal.
“Your Inability to Work Is Due to Non-Service-Connected Conditions”
VA is prohibited from considering age or non-service-connected disabilities when evaluating TDIU. 38 C.F.R. § 4.19 states it plainly: age may not be considered as a factor in evaluating service-connected disability. And § 4.16(a) makes clear that the question is whether the veteran’s service-connected disabilities alone prevent substantially gainful employment.
Despite this, VA raters routinely attribute a veteran’s unemployability to non-service-connected conditions, aging, or some combination of both. A veteran with service-connected PTSD and a non-service-connected back injury will often see a denial that says, in effect, “the veteran’s inability to work is primarily due to the back condition.” Or VA will note that the veteran is 62 years old and hasn’t worked in years — implicitly suggesting that age, not disability, explains the employment gap.
Both of these are legal errors. On appeal, the question is whether the service-connected conditions standing alone would prevent substantially gainful employment. If a veteran’s PTSD causes such severe concentration problems, irritability, and social withdrawal that they couldn’t maintain a job regardless of their back condition, the PTSD is independently disabling — and TDIU should be granted based on that condition alone.
The key to overcoming this denial reason is evidence that isolates the impact of the service-connected conditions. Medical opinions that address how the veteran’s service-connected disabilities specifically affect occupational functioning — separate from any non-service-connected issues — are essential.
“You’re Working, So You’re Not Unemployable”
VA frequently denies TDIU simply because the veteran has some form of employment. But as we explained in detail in our post on working and TDIU, marginal employment is not substantially gainful employment — and marginal employment does not disqualify you from TDIU.
Under 38 C.F.R. § 4.16(a), employment is marginal when the veteran’s earned annual income doesn’t exceed the federal poverty threshold ($15,960 for a single person in 2026), or when the veteran works in a protected work environment. If you’re picking up gig work, doing odd jobs for cash, or working part-time at a family member’s business with accommodations no outside employer would provide, that’s likely marginal employment.
The CAVC reinforced this in Ortiz-Valles v. McDonald, 28 Vet. App. 65 (2017), holding that a veteran can establish marginal employment either through income below the poverty threshold or through the totality of circumstances showing that the veteran is capable of only marginal employment due to service-connected conditions. VA cannot deny TDIU merely because the veteran earns some income without analyzing whether that income constitutes substantially gainful employment.
If your denial mentions your employment without addressing whether it’s marginal, that’s an appealable error.
The C&P Exam Doesn’t Consider the Whole Picture
When you file for TDIU, VA will typically schedule one or more C&P exams to evaluate your service-connected conditions. If you have PTSD, a knee injury, and migraines, you’ll likely see three different examiners. Each examiner evaluates their assigned condition in isolation and provides an opinion on whether that single condition prevents employment.
The result is predictable: the psychologist says your PTSD alone doesn’t prevent all work, the orthopedist says your knee alone doesn’t prevent all work, and the neurologist says your migraines alone don’t prevent all work. VA then denies TDIU because no single examiner said you were unemployable.
This approach ignores what the law actually requires. Under Cantrell v. Shulkin, 28 Vet. App. 382 (2017), VA must consider the “collective impact” of all service-connected disabilities when evaluating TDIU. A veteran who can’t stand for long due to a knee injury, can’t concentrate due to PTSD, and loses two or three days a week to migraines may be completely unemployable — even though no single condition is independently disabling. VA’s failure to assess the combined effect is one of the most common and most reversible errors in TDIU adjudication.
On appeal, this gap is typically filled by a vocational expert opinion that evaluates all service-connected conditions together and explains how their combined functional limitations prevent the veteran from maintaining substantially gainful employment.
“You Have Transferable Skills”
VA sometimes denies TDIU by asserting that the veteran has skills or education that would allow them to find alternative employment. The denial might reference a college degree earned 30 years ago, or note that the veteran once held a supervisory role, and conclude that these “transferable skills” make the veteran employable.
This reasoning often doesn’t survive scrutiny. VA must evaluate the veteran’s employability based on their actual occupational background, not a hypothetical resume. A veteran who earned a degree in the 1980s but spent their entire career in construction doesn’t have meaningful transferable skills for desk work — especially when their service-connected PTSD or TBI has degraded the cognitive functions that office employment would require.
The Federal Circuit addressed this in Roberson v. Principi, 251 F.3d 1378 (Fed. Cir. 2001), making clear that the standard is whether the veteran can maintain substantially gainful employment — not whether they can theoretically perform some form of work somewhere. VA must ground its analysis in the veteran’s real circumstances, and conclusory statements about transferable skills without detailed analysis are a frequent basis for remand on appeal.
What to Do After a TDIU Denial
If VA denied your TDIU claim, the first step is understanding exactly what VA got wrong. Read the denial letter and the rating decision carefully. Identify which of the reasons above — or which combination — VA relied on. That tells you what evidence you need to build on appeal.
Under the AMA appeals system, you have three options. You can file a supplemental claim with new and relevant evidence — this is often the strongest path if the denial was based on insufficient evidence, because you can submit a vocational expert opinion, updated medical records, or employer statements that weren’t in the original file. You can request a higher-level review if you believe VA misapplied the law to facts that were already in the record. Or you can appeal directly to the Board of Veterans’ Appeals.
You have one year from the date of your denial to file an appeal and preserve your effective date. If you miss that window, you can still file a new claim, but your effective date may reset — potentially costing you years of retroactive pay. TDIU pays at the 100% rate, which is $3,938.58 per month for a single veteran in 2026. Every month of effective date you lose is real money.
At After Service, TDIU appeals are a core part of what we do. We review the denial, identify the errors, and build the evidentiary record needed to overturn it — including obtaining vocational expert opinions, gathering targeted medical evidence, and making the legal arguments that connect the veteran’s specific limitations to the regulatory standard under 38 C.F.R. § 4.16. We also review the entire claims file for evidence that TDIU should have been granted earlier — which can result in substantial retroactive compensation.
If VA denied your TDIU claim, or if you’ve been rated below 100% and can’t work because of your service-connected disabilities, contact After Service LLC for a free consultation. We represent veterans nationwide and can evaluate whether your denial is worth appealing. Call us at 800-955-8596 or schedule a free consultation today.
