Individuals with a documented disability may be able to claim a federal tax exemption, depending on his/her income levels. This enables individuals with disabilities to pay less tax, sometimes $0 tax, depending on their income levels.
See Internal Revenue Service documents related to this tax exemption:
It should be noted that individuals with low income may be eligible for the Earned Income Tax Credit, regardless of his/her disability status. This allows people who work but have low incomes to receive a payment from the federal government. Additional information about federal taxes can be found at: www.irs.gov
Accessible IRS Tax Products can be found here.