VA Disability Rating Tools & Combined Rating Calculator

Understand the Math. Estimate the Rating. Know the Limits.

Educational tools for combined VA ratings, the bilateral factor, mental-health evaluation levels, Individual Unemployability, Special Monthly Compensation, and evidence readiness.

VA disability percentages are not a ranking of sacrifice, pain, or personal worth. The rating schedule is designed to approximate the average impairment in earning capacity caused by service-connected diseases, injuries, and residual conditions. The percentage assigned to an individual condition depends on the applicable diagnostic criteria, documented severity, functional limitations, treatment history, and the evidence available for review.

When a Veteran has more than one individual disability rating, VA does not simply add the percentages together. VA uses the whole-person method, beginning with the highest evaluation and applying each additional percentage to the remaining portion considered efficient. For example, two separate 10% evaluations combine to 19% before final rounding, rather than being added directly to 20%.

The VNI Combined Rating Calculator allows Veterans to enter individual percentages that have already been assigned, or responsibly estimated from the applicable rating schedule, and view an educational estimate of the resulting combined evaluation. The tool should explain every calculation step and clearly distinguish the unrounded combined value from the final percentage rounded to the nearest 10%.

The calculator may also estimate the bilateral factor when compensable disabilities affect both upper extremities, both lower extremities, or qualifying paired skeletal muscles. Under the current rule, the eligible bilateral disabilities are combined first, 10% of that combined value is added, and the result is then treated as one disability for further calculations. The regulation also requires the calculation most favorable to the Veteran when excluding one or more disabilities from bilateral treatment would produce a higher result.

This calculator cannot determine whether a condition is service connected, select the correct diagnostic code, evaluate medical evidence, diagnose a disability, or assign an official VA percentage. It also cannot determine whether two diagnoses involve the same manifestation. VA generally prohibits evaluating the same disability or symptom under multiple diagnoses, a rule commonly described as the avoidance of pyramiding.

The Mental Health Rating Navigator explains the general 0%, 10%, 30%, 50%, 70%, and 100% evaluation framework used for PTSD, depressive disorders, anxiety disorders, and many other mental-health diagnoses. These levels focus on the overall degree of occupational and social impairment rather than merely counting symptoms or treating one diagnosis as inherently more serious than another.

A Veteran should not use the navigator as a self-rating quiz. Symptoms must be considered in context, including their frequency, severity, duration, effect on employment, impact on relationships, ability to function independently, judgment, thinking, mood, self-care, and the complete medical and lay record.

The page should also explain Individual Unemployability, commonly called TDIU or IU. A qualifying Veteran may be paid at the 100% compensation rate when service-connected disabilities prevent substantially gainful employment, even though the underlying combined schedular rating remains below 100%. The usual schedular thresholds are one disability rated at least 60%, or multiple disabilities with one rated at least 40% and a combined rating of at least 70%, although the regulations also provide a path for certain cases that do not meet those percentage thresholds.

The tools should also introduce Special Monthly Compensation, which may provide compensation above the ordinary percentage schedule in qualifying circumstances, such as certain forms of loss or loss of use, the need for aid and attendance, or other specifically recognized disabilities. SMC cannot be accurately reproduced by simply stacking percentages in a combined-rating calculator.

An Evidence Readiness Checklist can help Veterans organize the information that may matter before seeking professional guidance, including:

• Individual service-connected ratings
• The side and body region affected
• Current diagnoses and residuals
• Medical testing and treatment records
• Employment and functional-impact evidence
• Lay or witness statements
• Evidence of paired-extremity disabilities
• Information relevant to TDIU, loss of use, or assistance with daily activities

The tools provide educational estimates only. They do not replace a VA rating decision, the applicable rating schedule, a qualified medical evaluation, or advice from a VA-accredited representative. Veterans should compare any estimate with their official VA decision and current individual ratings.