Key takeaways
- TDIU pays at the 100% rate when service-connected conditions prevent substantially gainful work.
- The thresholds are 60% for one condition, or 70% combined with one at 40%. Extra-schedular TDIU exists for others.
- Marginal employment is allowed. You can receive SSDI at the same time.
What TDIU is
TDIU recognizes that a rating schedule can't capture every situation. Two veterans rated 70% may have very different abilities to work. If your service-connected disabilities keep you from securing and following a substantially gainful occupation, VA can pay you at the 100% rate.
The requirements
Under 38 CFR § 4.16(a):
- One service-connected disability rated at least 60%, or
- Two or more with a combined rating of at least 70%, with at least one rated 40% or more
Some disabilities count as "one" for this purpose: conditions of both arms or both legs, conditions from a common cause or single accident, conditions of one body system, and multiple injuries incurred in combat or as a prisoner of war. Under § 4.16(b), VA must refer cases for extra-schedular consideration when a veteran who doesn't meet the percentages is unemployable due to service-connected disability.
"Substantially gainful" vs. marginal employment
Marginal employment, generally earnings below the poverty threshold for one person, doesn't bar TDIU. Neither does work in a protected environment such as a family business with special accommodations. VA considers your education, training, and work history. Age and non-service-connected conditions are not supposed to factor in.
Building the evidence
- VA Form 21-8940: your work and education history and when you last worked full-time
- VA Form 21-4192: employer information, including any accommodations or reasons for leaving
- Medical evidence describing functional limits in concrete terms: sitting, standing, lifting, concentration, reliability, interaction with others
- Lay statements from former coworkers or supervisors
- A vocational opinion, in some cases
We'll see whether you meet the TDIU thresholds, or how close you are.
TDIU and Social Security
VA and SSA benefits can be received together. TDIU doesn't reduce SSDI, and SSDI doesn't reduce TDIU. The standards differ, but the evidence overlaps a lot. Many TDIU veterans should also consider SSDI.
Permanent TDIU
If VA finds your TDIU permanent, your dependents may qualify for benefits such as Chapter 35 DEA education benefits and CHAMPVA. Check your decision letter for "permanent and total" language.
After TDIU is granted
VA may ask you to confirm your employment status each year (VA Form 21-4140). Report any work honestly and talk to your representative before starting a job.
Sources
38 CFR 4.16 · VA: Individual Unemployability
This article is general information, not legal advice. VA and SSA rules change; verify current rules with VA.gov or SSA.gov or talk to an accredited representative.