Finally understand why 50% + 50% = 80% (not 100%). Learn how the VA calculates your combined rating, the Bilateral Factor bonus, and exactly how much your rating is worth in 2026.
The most frustrating part of a VA claim is realized when you add up your individual ratings and the total doesn't match the check you receive. This isn't a mistake—it's VA's Combined Rating Method.
The VA assumes every veteran starts at 100% efficiency.
You subtract from 100%, not add to a scoreboard.
The VA doesn't see you as a list of injuries. They see you as a "Whole Person." Your rating percentage is subtracted from your total efficiency—not added to a running total.
The VA starts with the assumption that every veteran is 100% efficient. When you are granted a disability rating, that percentage is subtracted from your efficiency, not added to a scoreboard.
Visual: Each rating takes a percentage from what's remaining, not the original 100%.
Once you reach high combined ratings (like 80% or 90%), getting to that final 100% Permanent and Total (P&T) becomes significantly harder because you're working with a smaller slice of "remaining efficiency." Know what you're working toward!
Here's exactly how the VA combines two 50% ratings to get 80%.
If you have a 50% rating, you are now 50% "disabled" and 50% "efficient."
If you get a second 50% rating, the VA takes 50% of your remaining 50% efficiency.
Add your first rating to the new "incremental" rating from the second.
The VA rounds to the nearest 10%. Since 75% rounds up, your final rating is:
Bring a notepad to your C&P exams. Write down the percentage the examiner mentions and the date. This creates a paper trail if the VA later tries to reduce your rating without proper justification.
The VA recognizes that having injuries on both sides of your body is significantly more limiting. They apply a special bonus just for paired injuries.
Myth: You need the exact same injury on both sides (like both knees).
Reality: You qualify if you have any service-connected disability in both upper extremities (arms/hands) or both lower extremities (legs/feet).
This small calculation is often the "hidden bridge" that crosses the rounding threshold. A 64.4% rating—which would normally round down to 60%—can be pushed to 65% or higher by the Bilateral Factor, rounding you up to 70% and resulting in a massive jump in your monthly check.
This 21% is then combined with your other disabilities.
Without Bilateral Factor
Rounds to 60%With Bilateral Factor
Rounds to 70%! ↑That's a 10% jump—which could mean hundreds more per month depending on your dependency status.
As of January 1, 2026, all VA disability payments have been increased by 2.8% to match the cost of living.
Monthly payment amounts effective January 1, 2026
| Rating | 2026 Monthly |
|---|---|
| 10% | $180.42 |
| 20% | $356.66 |
| 30% + Dependents | $552.47 |
| 40% | $795.84 |
| 50% | $1,132.90 |
| 60% | $1,435.02 |
| 70% | $1,808.45 |
| 80% | $2,102.15 |
| 90% | $2,362.30 |
| 100% P&T | $3,938.58 |
If you are rated at 30% or higher, you can add a spouse, children, or dependent parents to your claim to increase these monthly amounts. Visit the VA's official rates page for dependent-adjusted amounts.
Source: VA.gov Compensation Rates — Updated January 2026
In previous years, the VA could lower your rating if a medication improved your symptoms. The theory was: "If the medication helps, your condition must not be as severe."
Good news: The VA has officially rescinded this rule. If your medication makes you feel better, your rating remains protected based on the underlying severity of your condition—not how well a pill masks it.
VA disability percentages, pay rates—it adds up fast. And if you've been waiting months for a decision, staring at numbers might feel like adding insult to injury.
Don't give up. Understanding the math is the first step. Now that you know how it works, you're better equipped to track your claim, spot errors, and advocate for yourself.
Now that you understand the math, it's time to put it to work. Start with your Intent to File and gather your evidence to protect your backpay.
Need personalized help? Find a free, accredited VSO at VA Accredited Representatives
Call the VA at 1-800-827-1000 (Monday–Friday, 8am–9pm ET)
