Limitation of Extension of the Leg (Knee) at 40% VA Disability Rating

Common questions about 40% for Limitation of Extension of the Leg (Knee)

How much does a 40% VA rating for Limitation of Extension of the Leg (Knee) pay?

A single veteran rated 40% for Limitation of Extension of the Leg (Knee) receives $795.84 per month ($9,550.08/year) under the 2026 VA rates, effective December 1, 2025. VA disability compensation is tax-free. With a spouse and one child, the monthly amount is $947.84.

What does it take to get a 40% rating for Limitation of Extension of the Leg (Knee)?

Extension limited to 30 degrees.

What's the difference between 40% and 50% for Limitation of Extension of the Leg (Knee)?

40%: Straightening knee is painful and incomplete. 50%: Leg can’t straighten—very limited mobility.

Can a secondary condition raise my rating above 40%?

Yes. If a condition like Lower Back Pain is service-connected as secondary to Limitation of Extension of the Leg (Knee), the VA combines both ratings using the official combined-ratings formula (38 CFR 4.25), which can produce a combined rating higher than 40% alone.