Bilateral Factor Calculator
The bilateral factor adds 10% to the combined rating of disabilities affecting both sides of paired body parts.
Paired extremity disabilities
Without bilateral factor
30%
Raw 28.00%
With bilateral factor
30%
Raw 30.80% (bonus +2.80%)
What is the bilateral factor?
Under 38 CFR §4.26, the VA recognizes that disabilities affecting both sides of paired body parts cause greater functional loss than separate single-limb disabilities. To account for that, VA combines the bilateral conditions first, then adds an extra 10% of that subtotal before combining with non-bilateral conditions.
Qualifying paired body parts
- Both arms / both legs
- Both hands / both feet
- Both eyes / both ears
- Skeletal muscles of paired extremities
Common mistake
Many veterans never claim the bilateral factor because rating decisions don't always make it obvious. If you have rated conditions on paired extremities, the bonus is automatic — but you should confirm it appears in your decision letter math.
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This calculator provides estimates based on the official VA whole-person combined rating method and 2026 VA compensation rate tables. Results are for informational purposes only and do not constitute legal or financial advice. Actual VA ratings and compensation amounts are determined solely by the U.S. Department of Veterans Affairs. This site is not affiliated with or endorsed by the U.S. Department of Veterans Affairs.