TDIU Eligibility: The 60/70 Rule, Extra-Schedular Claims, and Where Vocational Evidence Fits

By Allan S. Billehus, MS, EdS, CRC, LPC
Forensic Vocational Expert · SouthEast Vocational Experts · Updated November 8, 2026

TDIU claims are decided on one practical question: can this veteran obtain and keep work that pays a living wage, given the service-connected conditions? Medical records describe the conditions. They rarely answer the employment question directly. This guide walks through what the regulation actually requires, where claims commonly break down, and where vocational evidence fits.

What is TDIU?

TDIU, also called IU or individual unemployability, is part of VA disability compensation. It allows VA to pay certain veterans at the 100% rate with all of the associated benefits, even though VA has not rated their service-connected disabilities at the 100% level. It is a claim for increased compensation, not a separate benefit, and it turns on employability rather than on the rating percentages alone.

What are the schedular requirements for TDIU?

The schedular standard in 38 CFR § 4.16(a) is often called the “60/70 rule.” A veteran meets it with either:

• one service-connected disability ratable at 60 percent or more; or
• two or more service-connected disabilities, with at least one ratable at 40 percent or more and enough additional disability to bring the combined rating to 70 percent or more.

For the purpose of reaching the single 60% or 40% disability, the regulation treats certain groups of conditions as one disability, including:

• disabilities of one or both upper extremities, or of one or both lower extremities, including the bilateral factor;
• disabilities resulting from a common etiology or a single accident;
• disabilities affecting a single body system (for example orthopedic, digestive, respiratory, cardiovascular-renal, or neuropsychiatric);
• multiple injuries incurred in action; and
• multiple disabilities incurred as a prisoner of war.

Meeting the percentages does not by itself award TDIU. The rating agency must still find that the service-connected disabilities prevent substantially gainful employment.

What if my rating is below the 60/70 thresholds?

Section 4.16(b) states VA’s policy that all veterans who cannot secure and follow a substantially gainful occupation because of service-connected disabilities are to be rated totally disabled. When a veteran is unemployable but does not meet the percentage standards, the rating board submits the case to the Director, Compensation Service, for extra-schedular consideration.

What counts as “substantially gainful employment”?

Under § 4.16(a), marginal employment is not substantially gainful employment. Marginal employment generally exists when a veteran’s earned annual income does not exceed the U.S. Census Bureau poverty threshold for one person. It can also be found on a facts-found basis when earnings are higher — for example, employment in a protected environment such as a family business or a sheltered workshop. VA must also consider the nature of the employment and the reason it ended.

Two practical points often get missed: the test looks at the veteran’s own earned income from work, not household income or passive income such as pensions; and some veterans who are technically working may still qualify if the work is marginal or accommodated.

Why are TDIU claims denied?

Many veterans can show they cannot return to their own former occupation. The claim then shifts to a harder question: can the veteran perform any substantially gainful occupation? Denials frequently rest on a conclusion that the veteran can still do unskilled or sedentary work.

That conclusion is often reached from medical records alone. VA examiners and C&P examiners describe functional loss in medical terms. They typically evaluate each disability on its own and do not analyze how the conditions combine in a real workplace — pace, attendance, concentration, interaction with supervisors and coworkers, tolerance for stress, and the accommodations an employer would have to make.

What does a vocational expert report evaluate?

A forensic vocational evaluation bridges the gap between documented medical and psychological limitations and the realities of the labor market. A thorough TDIU report typically includes:

1. Records review — hospital, physician, psychiatrist, psychologist, and counselor records, plus VA disability documentation.
2. A diagnostic vocational interview covering age, education, work history, skills, impairments, treatment, and physical and psychological limitations (in person or remote).
3. Psychometric assessment when indicated — aptitudes as well as attention, concentration, memory, cognitive abilities, and mental health measures.
4. Transferable skills analysis — whether skills from past work carry over to other jobs within the veteran’s residual functional capacity.
5. Labor market research — whether a significant number of jobs the veteran can actually perform exist in the local and national economy.

The result is an opinion, stated in vocational terms, on whether the veteran can perform substantially gainful work activity — including the effects of pain and medication on focus, persistence, and pace, which medical exams rarely quantify. See our TDIU vocational evaluation process for details.

Common TDIU myths

• “A college degree means I’m employable.” Education opens doors, but scholastic ability is not the same as the capacity to obtain and keep a job when service-connected conditions interfere with attendance, pace, or concentration.
• “Going to school is the same as working.” Coursework is often flexible in hours and location; employment has fixed schedules and productivity demands. A vocational expert can address the difference.
• “Any job disqualifies me.” Marginal or protected employment is not substantially gainful employment under § 4.16(a).
• “I’m too old, so they’ll deny me.” Under 38 CFR § 4.19, age may not be considered as a factor in evaluating service-connected disability.

Which VA forms are involved?

A TDIU claim is generally made on VA Form 21-8940, the Veteran’s Application for Increased Compensation Based on Unemployability, which the veteran should sign personally. VA uses VA Form 21-4192 to request employment information from former employers. Always use the current version of each form from VA.gov. A vocational expert report is submitted as supporting evidence with the claim or appeal.

This article is general information about vocational evaluation, not legal advice. For advice about a specific claim or case, consult a VA-accredited representative or a licensed attorney.