TDIU is one of the most valuable benefits in the entire VA system — and one of the most overlooked. It lets a veteran get paid at the 100% compensation rate without actually having a 100% rating. If your service-connected conditions keep you from holding down a steady job, you may already qualify and not know it. This guide explains exactly who’s eligible, the rating thresholds, and how to file.
Quick disclaimer: This is general educational information, not legal advice. Every claim is different — talk to an accredited Veterans Service Officer (VSO) or attorney about your specific case.
What TDIU Actually Is
TDIU stands for Total Disability based on Individual Unemployability. It’s governed by 38 CFR 4.16. The core idea: if your service-connected disabilities prevent you from holding “substantially gainful employment,” the VA can pay you at the 100% rate even though your combined schedular rating is less than 100%.
In 2026, that 100% rate is $3,938.58 per month for a single veteran (more with dependents). For a veteran currently rated at 70%, the gap between their pay and the TDIU rate exceeds $25,000 a year. Over several years, that’s a six-figure difference — which is why TDIU is so important for veterans who can’t work.
Who Qualifies: The Rating Thresholds
There are two paths to TDIU. The first is schedular TDIU under 38 CFR 4.16(a), which has clear rating benchmarks. You meet the schedular threshold if either of these is true:
- One service-connected disability rated at 60% or higher, OR
- A combined rating of 70% or higher, with at least one disability rated at 40% or more.
This is often called the “60 rule” or the “70/40 rule.” Because combined ratings use VA math, hitting these thresholds isn’t always intuitive — it’s worth understanding how VA math combines your ratings before assuming whether you qualify.
The second path is extraschedular TDIU under 38 CFR 4.16(b). This exists for veterans whose ratings fall below the schedular thresholds but whose conditions still make employment impossible. These cases are referred to the VA’s Director of Compensation Service and carry a higher evidence burden, so approval is harder — but it remains a valid path.
The Part That Trips Veterans Up: “Substantially Gainful Employment”
Meeting the rating threshold is only half the equation. You also have to show your service-connected conditions prevent you from holding “substantially gainful employment.” A few key points veterans often misunderstand:
- You can still work a little. “Marginal employment” — generally earning below the federal poverty threshold — doesn’t disqualify you. Part-time or odd jobs below that line are allowed.
- Age cannot be held against you. Under 38 CFR 4.19, the VA is not permitted to consider your age. Being over 65 does not disqualify you from TDIU.
- The question is durability, not capability. It’s not “can you do a job on a good day” — it’s “can you keep a job over time.” Conditions that cause frequent absences, flare-ups, or hospitalizations speak directly to this.
How to File for TDIU
TDIU is typically claimed using VA Form 21-8940 (Application for Increased Compensation Based on Unemployability), often alongside VA Form 21-4192, which gathers information from former employers. The strongest TDIU claims combine several types of evidence:
- Medical records documenting how your conditions limit your ability to work.
- Your detailed work history, showing job losses, reduced hours, or accommodations that failed.
- Lay evidence — statements from you, former coworkers, or family describing what you can no longer do. A well-written buddy statement can be powerful here.
- In strong cases, a vocational expert opinion connecting your limitations to unemployability.
One strategic note: applying for TDIU when your ratings clearly fall short of the thresholds, without strong unemployability evidence, can waste months and create an unfavorable claim history. It’s worth confirming where you stand first. If you’ve been denied, knowing how to choose between a Supplemental Claim and a Higher-Level Review applies here too.
The Bottom Line
TDIU pays at the 100% rate for veterans who can’t maintain steady work because of their service-connected conditions — even without a 100% rating. If you’re at 60% on a single condition, or 70% combined with one condition at 40%, and you can’t hold a job, you may already meet the schedular threshold. Don’t leave this benefit on the table because you assumed you needed a perfect rating. For the bigger picture on how the whole system fits together, start with our plain-English walkthrough of how VA disability claims work, and you can review the official rules on VA.gov’s unemployability page.