As you plan your claims strategy for the new year, it’s critical to understand “VA Math.” If you’re at a 60% or 70% rating, you might think adding a 10% claim will push you to the next pay bracket.
The hard truth: it probably won’t.
The VA’s combined rating system doesn’t add percentages; it multiplies them. This guide breaks down real-world scenarios that show you what it really takes to get to that next level.
How “VA Math” (and the VA Rating Calculator) Works
The VA doesn’t see you as a 0% person. They see you as a 100% “whole” person. Each rating you get takes a percentage of your remaining “whole” percentage.
Example:
- You are 100% whole.
- You get a 50% rating for PTSD. (100% x 0.50 = 50%).
- Your disability is 50%. Your remaining “whole” self is 50%.
- You add a 20% rating for your back. The VA takes 20% of your remaining 50%, not of the original 100%. (50% x 0.20 = 10%).
- Your new combined disability is 50% + 10% = 60%.
- Your
va combined ratingis 60%.
This is why the ratings get harder and harder to “add” as you go.
Scenarios: What It Takes to Jump to the Next Bracket
Let’s look at a veteran, “John,” who is currently at 60% (64%).
John’s ratings: 50% (PTSD) + 20% (Back) + 10% (Tinnitus) = 64%, which the VA rounds down to 60%.
John wants to get to 70%. He files a new claim for his service-connected knee.
- Scenario 1: John gets a 10% rating for his knee.
- His 64% disability leaves him 36% “whole.”
- 10% of 36% = 3.6%.
- His new combined rating is 64% + 3.6% = 67.6%.
- The VA rounds 67.6% up to 70%.
- Result: SUCCESS. That 10% claim was enough to jump the bracket.
Now let’s look at “Jane,” who is at 80% (83%).
Jane’s ratings: 50% (PTSD) + 30% (Migraines) + 30% (Knee) + 20% (Back) = 83.3%, which rounds down to 80%.
Jane wants to get to 90%.
- Scenario 2: Jane gets a 10% rating for Plantar Fasciitis.
- Her 83.3% disability leaves her 16.7% “whole.”
- 10% of 16.7% = 1.67%.
- Her new combined rating is 83.3% + 1.67% = 84.97%.
- The VA rounds 84.97% down to 80%.
- Result: FAILURE. Her rating is unchanged.
- Scenario 3: Jane gets a 20% rating for Plantar Fasciitis.
- Her 83.3% disability leaves her 16.7% “whole.”
- 20% of 16.7% = 3.34%.
- Her new combined rating is 83.3% + 3.34% = 86.64%.
- The VA rounds 86.64% up to 90%.
- Result: SUCCESS. She needed a 20% rating, not 10%, to make the jump.
The Bilateral Factor: Your Secret Weapon
There is one exception: the va rating calculator with bilateral factor. If you have a disability in both arms, both legs, or paired skeletal muscles, the VA adds a 10% “bilateral factor” to your combined disability (not to your “whole” percentage).
This “bonus” is applied before the final rounding, making it extra powerful.
Example:
- You have 20% for your right knee and 20% for your left knee.
- VA Math: 20% + 20% = 36%.
- Bilateral Factor: 10% of 36% = 3.6%.
- Your new rating is 36% + 3.6% = 39.6%.
- The VA rounds this up to 40%. Without the bilateral factor, you’d be at 36%, rounded to 40% (same result).
But watch this:
- You have 30% (Back) + 20% (Right Knee) + 10% (Left Knee).
- VA Math: 30% + 20% = 44%. Then 44% + 10% = 49.6%.
- Bilateral Factor (for the two knees): 10% of (20% + 10% = 28%) = 2.8%
- Your new rating is 49.6% + 2.8% = 52.4%.
- The VA rounds this down to 50%.
This math is confusing. Before you file a claim, use a va rating calculator online to see if the new rating will actually increase your pay. This will help you decide whether to file a new claim or, if you’re unemployed, to pursue tdiu benefits (Total Disability based on Individual Unemployability) instead.