The Disaster Assistance Simplification Act prohibits the Department of Housing and Urban Development and its disaster relief grantees from penalizing disaster survivors who decline Small Business Administration loans. Under current practice, HUD-funded disaster assistance programs could reduce grant amounts based on whether applicants turned down SBA disaster loans they were eligible for. This bill eliminates that practice, ensuring that people who choose not to take on SBA debt are not financially punished when applying for HUD disaster recovery grants. The legislation applies to major disasters declared by the President and covers applicants who applied for SBA assistance before, on, or after the bill's enactment. The bill aims to simplify disaster relief by giving survivors more flexibility in choosing which federal assistance programs best fit their recovery needs without facing reductions in other aid.