TDIU — How to Get Paid at 100% Even With a Lower Rating

What Is TDIU?

TDIU — also called Individual Unemployability (IU) — is a VA benefit that allows eligible veterans to be compensated at the 100% rate even if their combined disability rating is below 100%. The legal basis is 38 CFR 4.16.

The key requirement: your service-connected disabilities must prevent you from maintaining "substantially gainful employment" — meaning you cannot hold a regular job that pays above the federal poverty threshold (~$15,000/year in 2026).

Part-time, sheltered, or minimum wage work may be permitted under TDIU. "Marginal employment" — income below the poverty threshold — generally does not disqualify a veteran from TDIU.

Do You Meet the Rating Threshold?

VA has two schedular eligibility criteria for TDIU (38 CFR 4.16(a)):

The Key Question: What Is "Substantially Gainful Employment"?

TDIU doesn't require that you be unable to work at all — it requires that you be unable to maintain substantially gainful employment. VA defines this as employment that pays above the federal poverty threshold (approximately $15,060/year in 2026).

This means:

• If you work part-time and earn less than ~$15,000/year, you may still qualify for TDIU
• If you are self-employed and your income is below the poverty line, you may still qualify
• If you work in a "protected work environment" (a family business, sheltered workshop) with accommodations a regular employer wouldn't provide, that may not count as gainful employment
• Volunteer work and casual part-time income generally do not disqualify you

What Evidence Does VA Need?

To approve TDIU, VA must find that your service-connected conditions — not other factors like age, education, or non-service-connected health issues — are what prevent you from working. Here's what to gather:

1. Employment History (VA Form 21-8940)

VA Form 21-8940 (Application for Increased Compensation Based on Unemployability) requires you to provide:

• Your work history for the past 5 years — all jobs, why you left, any gaps
• Education and training history
• Date you became too disabled to work
• Last date of full-time employment

2. Medical Evidence Linking Disability to Unemployment

You need medical records and/or a nexus letter that specifically states your service-connected conditions prevent you from working. A treating physician letter that says "Patient is unable to maintain full-time employment due to [service-connected condition]" is very valuable.

VA will also often request a medical examination to evaluate your employability. Prepare for this exam the same way you'd prepare for a C&P exam — describe your worst days, not your best.

3. Employer Statements (VA Form 21-4192)

If you've had recent employers, VA may send them VA Form 21-4192 asking about your work performance, attendance, and why your employment ended. If your service-connected conditions led to poor attendance, inability to concentrate, or behavioral issues — this is documented evidence of unemployability.

4. Social Security Disability Records

If you've received Social Security Disability Insurance (SSDI), include those records. An SSDI award is not required for TDIU, but it's strong evidence that your conditions prevent gainful employment.

The Application Process

1. File Intent to File first — if you haven't already, file VA Form 21-0966 to protect your effective date
2. Complete VA Form 21-8940 — the TDIU application form. Be thorough and detailed in describing how your conditions prevent you from working
3. Submit supporting evidence — employment history, medical records, employer statements, buddy statements from coworkers and family describing how your conditions affect your work
4. Attend your C&P exam — if VA schedules one. Describe your worst days and functional limitations in detail
5. Monitor your claim status at VA.gov or call 1-800-827-1000

What Happens After Approval

If TDIU is approved, you receive compensation at the 100% rate ($3,737.85/month in 2026 for a single veteran with no dependents). This compensation may increase with additional dependents and COLA adjustments.

TDIU does not automatically become "permanent" — VA may schedule a future examination (called a "future exam") to review your status. However, many TDIU grants are made permanent and total, particularly for veterans over age 55 or with conditions unlikely to improve.