Ever looked at your VA rating and thought, "Wait, how did they get THAT number?"

You're not alone. Veterans ask us all the time: "I have 50% + 30% + 20%... shouldn't that be 100%?"

Here's the frustrating truth: The VA doesn't add your ratings together.

How VA Combined Ratings Actually Work

The VA uses what we call "VA math" - and it's designed to work against you as your rating goes up. Here's the logic:

If you're rated 10% disabled, the VA considers you 90% "whole" (their word, not ours). When they add your second condition, they don't add it to the 10%. Instead, they take a percentage of that remaining 90%.

Real example: Two 10% ratings

First rating: 10% of 100 = 10%

Second rating: 10% of the remaining 90% = 9%

Combined: 19% (rounded to 20%)

See the problem? You'd expect 20%, but you only get credit for 9% on that second condition.

The Higher You Go, The Harder It Gets

This system really screws veterans once you're over 50%. Here's a common scenario that makes veterans furious:

A veteran with:

50% for PTSD

50% for Sleep Apnea

20% for Diabetes

20% for Back Pain

You'd think: 50 + 50 + 20 + 20 = 140%... so definitely 100%, right?

VA says: Combined rating = 80%

Why This Matters - Follow The Money

That 20-point difference between 80% and 100%? It's not just numbers on paper.

2026 Monthly Compensation (Single Veteran, No Dependents):

80% Rating: $1,995.01/month

100% Rating: $3,831.30/month

That's $1,836.29 MORE per month - nearly double - for just 20 percentage points. Over a year? That's $22,035.48 in lost compensation.

This is exactly why finding every secondary condition matters so much.

The Bilateral Factor - Your Secret Weapon

Here's one thing that works IN your favor: If you have service-connected disabilities on both arms OR both legs, the VA adds a "bilateral factor" - essentially a 10% boost to those combined extremity ratings.

Most veterans don't know about this, and most VSOs don't claim it properly.

TDIU: The 100% Backdoor

Can't get to 100% through combined ratings? There's another path: Total Disability Individual Unemployability (TDIU).

If your service-connected disabilities prevent you from holding "substantially gainful employment," you can receive 100% compensation even with a lower rating - typically need at least one condition rated 60% or a combined rating of 70%+.

This is why our calculator asks about your employment status.

The VA Won't Do This Math For You

The VA has a combined ratings table buried in their regulations, but even VA employees use their own internal calculator (they literally call it "The Combinator"). They're not going to explain this to you. They're not going to tell you about secondary conditions. They're not going to suggest TDIU.

That's where we come in.

Our free calculator uses the exact same VA math - but we also identify when you might qualify for TDIU, when bilateral factors apply, and what you're potentially leaving on the table.

Don't Let VA Math Rob You

Use our free calculator to see your real combined rating, then let our 100% disabled veteran-owned team help you find every condition you're missing.