What is TDIU and how do you qualify?

TDIU pays a veteran at the 100 percent rate without holding a 100 percent rating, when service-connected conditions prevent substantially gainful employment.

TDIU stands for Total Disability based on Individual Unemployability. It is sometimes called IU. It exists because the rating schedule measures average impairment of earning capacity, and averages do not fit every veteran. Two people with the same rating can have very different working lives.

The two schedular paths

Under 38 CFR 4.16(a), a veteran meets the rating thresholds one of two ways ¹:

• One service-connected disability rated at 60 percent or higher, or
• Two or more service-connected disabilities, with at least one rated at 40 percent or higher, combining to 70 percent or higher

The combined figure uses the VA combined ratings table, not simple addition. ²

What counts as one disability

This part gets missed often. For the purpose of reaching that single 60 percent or single 40 percent figure, the regulation treats certain groups as one disability ¹:

• Disabilities of one or both upper extremities, or one or both lower extremities, including the bilateral factor
• Disabilities resulting from a common cause or a single accident
• Disabilities affecting a single body system
• Multiple injuries incurred in action
• Multiple disabilities incurred as a prisoner of war

So two separately rated conditions in the same body system may combine into one figure for threshold purposes.

Meeting the percentages is not the whole test

The percentages are the door, not the decision. The regulation still requires that the veteran be unable to secure or follow a substantially gainful occupation as a result of service-connected disabilities. ¹ Nonservice-connected conditions and age are not supposed to factor in.

What "substantially gainful" means

The general benchmark is earnings above the federal poverty threshold for one person. ¹ Two situations generally do not count as substantially gainful employment:

• Marginal employment, where annual earned income falls below that poverty threshold
• A protected work environment, such as a family business or a sheltered workshop, where accommodations exceed what an ordinary employer would provide

This is why working does not automatically rule out TDIU. What matters is the nature and level of the work.

The extraschedular path

A veteran who cannot work but does not meet the percentage thresholds is not out of options. Under 38 CFR 4.16(b), it is stated VA policy that any veteran unable to secure and follow a substantially gainful occupation because of service-connected disabilities should be rated totally disabled. Cases that fail the percentages are supposed to be submitted to the Director of Compensation Service for extraschedular consideration. ¹

These are harder and less common, but the path exists in the regulation.

What TDIU pays

TDIU is paid at the 100 percent rate. In 2026 that is $3,938.58 per month for a veteran with no dependents, tax-free, with more for a spouse or children. The underlying ratings do not change; the compensation is what changes.

The form

TDIU is claimed on VA Form 21-8940, the Veteran's Application for Increased Compensation Based on Unemployability, which asks for employment history, earnings, education, and training.

An accredited VSO can help with a TDIU claim at no cost.