Understanding VA Claim Percentages
A VA claim percentage is not simple addition. Each disability reduces the remaining healthy efficiency. A 50 percent rating leaves 50 percent efficiency. A second 30 percent rating applies to that remaining efficiency. That creates a smaller added effect than normal arithmetic.
Why Combined Math Matters
This calculator helps you model that statistical process before you review a decision. It accepts several service connected ratings. It sorts them from highest to lowest. Then it combines each rating against the remaining efficiency. The raw value is shown first. The official estimate is rounded to the nearest ten percent.
Bilateral Factor Planning
Some claims involve both arms, both legs, or paired muscles. The bilateral factor may apply when each side has a compensable disability. The tool groups qualifying paired extremity ratings. It combines them first. Then it adds ten percent of that bilateral subtotal. That adjusted value is combined with all other ratings. This feature is useful for knee, shoulder, ankle, wrist, nerve, and muscle claims.
Using Results Carefully
The output is an estimate. It does not replace a rating decision. Medical evidence, diagnostic codes, pyramiding rules, effective dates, and special monthly compensation may change the final award. Still, a calculator can help you check reasonableness. It can also show how a new rating may move the combined percentage.
Helpful Review Method
Enter each current disability separately. Do not enter the rounded combined value unless it is being used as a single prior estimate. Mark the side only when the disability affects a paired extremity. Leave the side as none for tinnitus, PTSD, migraines, back conditions, skin ratings, or similar issues.
Exporting Your Work
Use the CSV option for spreadsheet records. Use the PDF option for a quick printable summary. Keep the exported estimate with your notes. Compare it with decision letters, evidence lists, and representative advice. The clearer your inputs are, the better the estimate becomes.
Common Input Checks
Use whole rating percentages. Remove duplicate entries before calculating. Review zeros, because noncompensable conditions usually do not change the combined value. For appeals, save several scenarios. Compare the current award, proposed increase, and possible reduction. This makes planning easier and avoids confusion during reviews and hearings later too.