Understanding the 70-40 VA rule for VA disability can help you determine if you qualify for TDIU. Under this rule, you are eligible for TDIU if you have a combined VA disability rating of 70% or higher and at least one condition rated at 40% or more. We explain why the 70-40 VA rule matters and how it can help you get the compensation you deserve.
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The VA recognizes that some health conditions can prevent you from working enough to support yourself or your family. Physical limitations, mental health struggles, or side effects from your service-connected conditions can make it hard to hold a steady full-time job. If you have multiple service-connected conditions that make it difficult to maintain a job, you will want to learn more about the 70-40 VA rule.
In this article about the 70-40 rule for VA disability:
What is TDIU?
TDIU, which stands for total disability based on individual unemployability, is a tax-free monthly benefit that ensures veterans who can’t work can still support themselves and their families.
Veterans eligible for TDIU receive VA disability compensation at the 100% level without their condition being rated 100% disabling.
To qualify for schedular TDIU, you must have:
- At least one service-connected disability rated at least 60% OR
- A combined rating of two or more service-connected disabilities at 70% or more, including at least one disability rated at 40% or more.
The second bullet point in the list above is known as the 70-40 rule, which we will explain in more depth below.

TDIU benefits
Even if your disability rating doesn’t equal or add up to a combined rating of 100%, TDIU pays the same monthly amount as a 100% rating. That means veterans approved for TDIU can receive at least $3,831.30 per month, with increases for dependent children or parents.
The biggest difference between simply having a 100% VA rating and receiving TDIU benefits is the rules around working. Veterans with a 100% combined rating can still work if they are able. With TDIU, you cannot have what the VA calls “substantially gainful employment,” or work that pays a livable wage comparable to that of non-disabled workers in similar roles.
However, veterans receiving TDIU can still work certain odd or part-time jobs if the work is considered marginal employment or within a sheltered work environment under VA rules. Marginal employment is when a working veteran’s income is below the federal poverty line or when the veteran can only work less than half the usual hours of the job.
What is the 70-40 rule for VA disability?
The 70-40 rule refers to the requirements veterans must meet when filing for TDIU based on multiple service-connected conditions.
To meet the 70-40 rule, you need to have:
- a combined VA disability rating of 70% or higher, AND
- at least one condition rated at 40% or more on its own.
If you meet these criteria, you may qualify for TDIU and receive compensation at the 100% disability rate, even though your combined rating may be just 70%.
As VA disability lawyer Zack Evans explains, “You don’t have to have a bunch of severe ratings to get to a 100% level of compensation. You can have one rating at 60%, or you can meet the 70-40 rule with a combined rating of 70% and an underlying condition of at least 40%.”
The importance of 40% VA ratings
Although it may not sound all that high on its own, a single 40% rating can be the key to qualifying for TDIU when your overall combined rating reaches 70% or higher.
For example, a veteran might have a 40% rating for fibromyalgia. They might have additional ratings of 30% for PTSD and 30% for migraines. Together, using VA math, these conditions could push the veteran’s combined rating to 70%, making them eligible under the 70-40 rule.
To see if your combined VA rating for your service-connected conditions adds up to 70%, check out our VA rating calculator.
Several common service-connected conditions can be rated at 40%, including:
- Arthritis can warrant a 40% rating if it severely limits the veteran’s movement.
- Fibromyalgia can be rated at 40% if it causes widespread pain.
- Hypertension (high blood pressure) is rated at 40% when diastolic pressure is predominantly 120 or more.
In some cases, a condition rated at 40% may even be a secondary condition, which is one that is caused or aggravated by a service-connected disability. For example, hypertension could develop due to service-connected diabetes, or liver disease could be linked to long-term medication use for another condition.
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Frequently asked questions
Under the 70-40 rule, veterans can qualify for TDIU if they have a combined VA disability rating of 70% or higher and at least one condition rated at 40% or more.
TDIU pays the same monthly amount as a 100% disability rating. The base rate is $3,831.30 per month, with additional compensation for dependent children or parents.