At the end of last month, the Social Security Administration (SSA) released a pair of guidance documents that The Arc has been advocating for:
EM-20014 REV 3: https://secure.ssa.gov/apps10/reference.nsf/links/07232021123646PM
 
EM-21050: https://secure.ssa.gov/apps10/reference.nsf/links/07232021011154PM
The guidance states that all stimulus checks (and CA, MD, and NM state stimulus checks) in addition to unemployment insurance payments and other COVID-related relief are “disaster assistance” and so are not to be counted as either an asset or a resource with regards to SSI.
 As we all know, some local Job and Family Services office may not yet know this, so if you have issues, please hand them the above notices for the Social Security Administration.