If you can't work because of service-connected disabilities — read this.

What TDIU is

Total Disability based on Individual Unemployability (TDIU), also called "IU," lets the VA pay you at the 100% disability rate ($3,737.85/month base in 2025, plus dependents) even if your combined rating is lower — when service-connected disabilities prevent you from "substantially gainful employment."

Schedular eligibility

Two paths:

• One disability at 60%+ that prevents you from working, OR
• Two or more disabilities with a combined rating of 70%+, AND at least one disability rated 40%+

Disabilities from a single body system or a single event count as one disability for the purpose of meeting these thresholds. Bilateral lower-extremity disabilities also combine.

Extra-schedular consideration

If you don't meet the schedular thresholds but service-connected disabilities still prevent work, the VA can grant TDIU on an "extra-schedular" basis. This is rare but possible — request it explicitly when filing.

What "substantially gainful employment" means

Generally: earnings above the federal poverty threshold (about $15,060/year for one person in 2025). Lower earnings, sheltered work (such as protected family business jobs), and jobs heavily accommodated due to disability typically count as "marginal employment" — which is allowed under TDIU.

How to apply

1. File VA Form 21-8940 (Veteran's Application for Increased Compensation Based on Unemployability)
2. Submit VA Form 21-4192 to your last employer (Request for Employment Information)
3. Strong evidence: records of work limitations, accommodation requests, attendance issues, terminations or being unable to keep jobs
4. Ideally include a vocational expert opinion stating you cannot work due to service-connected conditions. VSOs can sometimes get this; otherwise pay $1,000–$3,000 for a Vocational Rehabilitation Specialist letter — usually worth it.

What you keep with TDIU

• 100% compensation pay rate
• Healthcare in Priority Group 1
• CHAMPVA for dependents (after permanent ratings)
• Property tax exemptions in many states (often as if 100% rated)
• Free VA dental, audiology, vision (full coverage)
• Eligibility for Aid & Attendance enhancement when applicable

What TDIU doesn't change

• Your underlying combined rating (e.g., still rated 70%) — only the pay rate is bumped to 100%
• Some 100%-rated benefits (Chapter 35 DEA for dependents, full SBP coverage) follow your underlying rating, not TDIU pay rate. P&T status (Permanent & Total) is what unlocks those — request P&T explicitly when applying for TDIU.

Working with TDIU — the rules

TDIU recipients can earn up to the federal poverty threshold from substantially gainful employment without losing TDIU. Some exceptions:

• Marginal employment (sheltered, family-protected, heavy accommodations) doesn't count
• Year of "trial work": if you start a job and can't sustain it, that's protected
• Self-employment with low or no profit margin can also be marginal

If your earnings exceed the threshold for 12+ consecutive months, the VA may propose to reduce TDIU. You'll get notice and the chance to respond.

If TDIU is denied

Appeal. Many TDIU denials are reversed on supplemental claims with vocational evidence. See full appeals guide.

Common mistakes

• Not requesting TDIU explicitly — assuming the VA will grant it automatically
• Filing without VA Form 21-8940
• Missing the vocational expert opinion that ties symptoms to work-limitation
• Not requesting P&T at the same time
• Working too much during the application — undermines the "unemployable" claim

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