VASRD 5256 · Musculoskeletal System
Knee, Ankylosis at 40% VA Disability Rating
Significantly bent
40%: single veteran, no dependents
$795.84
$9,550.08/year · tax-free · effective December 1, 2025
VA Rating Criteria for 40%
Flexion between 45° and 60°
40% Pay by Household (2026)
Monthly compensation amounts for Knee, Ankylosis rated at 40%. Dependent additions apply at 30% and above.
| Single (no dependents) | $795.84 |
| With spouse | $882.84 |
| With spouse + 1 child | $947.84 |
| With spouse + 2 children | $990.84 |
| Single + 1 child (no spouse) | $853.84 |
Lower tier
30% Knee, Ankylosis
$552.47 /mo single
Higher tier
50% Knee, Ankylosis
$1,132.90 /mo single
Common questions about 40% for Knee, Ankylosis
- How much does a 40% VA rating for Knee, Ankylosis pay?
- A single veteran rated 40% for Knee, Ankylosis 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 Knee, Ankylosis?
- Flexion between 45° and 60°
- What's the difference between 40% and 50% for Knee, Ankylosis?
- 40%: Significantly bent 50%: Stuck partially bent
- Can a secondary condition raise my rating above 40%?
- Yes. If a condition like Hip Pain is service-connected as secondary to Knee, Ankylosis, 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.
See all rating tiers and evidence guidance
Full VASRD criteria, best evidence, exam pitfalls, and secondary conditions for Knee, Ankylosis are on the main condition page.
View full Knee, Ankylosis guide