Every Hawaii county gives disabled veterans and their surviving spouse a break on real property tax. Hawaii has no statewide property tax exemption, so the amount, the disability requirement and the form all depend on which county your property is in: Honolulu, Hawaii, Kauai or Maui.
Apply through the real property assessment office in the county where the property is, not through the state. Ask that office for its exemption amount, its disability requirement and its filing deadline, since all three differ by county.
Your VA disability rating letter, proof that you own the property and live in it, and, if you are a surviving spouse, your marriage certificate and the veteran’s death certificate.