80% VA disability benefits: How hard is it to go from 80% to 100%?
Moving from an 80% VA rating to 100% can be difficult because disability percentages aren't simply added together.

Veterans rated at 80% disability may receive significantly more compensation if they reach the 100% level, but getting there isn't as straightforward as adding another 20% rating.
In 2026, a veteran with no dependents receives $2,102.15 per month at 80%, compared with $3,938.58 at 100%. That is a difference of $1,836.43 each month.
The difficulty comes from the way the Department of Veterans Affairs combines multiple disabilities.
Why going from 80% to 100% VA disability is difficult
CCK Law explains that reaching a schedular 100% rating from 80% can require substantial additional disability.
“It’s important to note that the way VA calculates veterans’ overall combined rating is not simply to add each disability together. Instead, they use a special algorithm and formula to do so,” CCK Law partner Michael Lostritto said.
According to CCK Law, someone at a schedular 80% rating would generally need another condition rated at 80%, or several additional disabilities combining to the equivalent, to reach a combined schedular 100%.
Veterans can potentially seek an increased rating if an existing service-connected condition has worsened, appeal an earlier VA decision, or file claims for qualifying secondary conditions.
“It’s really important to bolster your claim or appeal with lay evidence or medical evidence in order to substantiate that an increased rating is warranted. It’s also very important - it’s critical - to attend your C&P exams,” Lostritto said.
TDIU can provide another route to 100% benefits
Some veterans may instead qualify for Total Disability based on Individual Unemployability, known as TDIU.
TDIU can pay compensation at the 100% rate even when a veteran's combined schedular rating remains below 100%.
“TDIU requires you to show that your service-connected disabilities prevent you from gaining and maintaining substantially gainful employment,” Lostritto said. “It allows veterans to be compensated at the 100 percent level, despite the fact that they’re otherwise not combined at the 100 percent rate.”
For schedular TDIU, CCK Law says a veteran generally needs one service-connected disability rated at 60% or higher, or multiple disabilities with at least one rated at 40% and a combined rating of at least 70%.
So while moving directly from 80% to schedular 100% can be challenging, worsening conditions, secondary claims, appeals or TDIU may provide alternative paths depending on the veteran's circumstances.



