Disability payment compensation rates made to United States veterans are calculated based on the number and extent of the disabilities, according to the U.S. Department of Veterans Affairs. Additional factors used to determine disability compensation rates include the veteran's marital status, number of dependents and whether the veteran has a seriously disabled spouse.
Information about a veteran's disabilities is taken from the information provided by the veteran, as well as the veteran's military records, explains the U.S. Department of Veterans Affairs. Disabilities are rated in 10 percent increments, from 0 to 100 percent.
The Veterans Administration uses a combined ratings table to determine the disability rating for a veteran with multiple disabilities, details the U.S. Department of Veterans Affairs. The disabilities are arranged in order of severity and given percentage ratings. The combined value of the first two disabilities is rounded up or down to the nearest 10 percent if there are only two disabilities. If there are more than two disabilities, the combined total is not rounded to the nearest 10 percent until all additional disabilities are added.
Existing military disability payment recipients periodically receive a cost of living increase, notes the U.S. Department of Veterans Affairs. Federal law dictates that the cost of living adjustment for military disability payments match the cost of living increase for Social Security benefits.