my granddaughter 21 yrs old is on disability Can she have a savings acct or checking acct?

Hi,

Yes. If she's receiving Social Security disability benefits, there is no limit on the amount of money that she could have in a bank account. However, if she's receiving Supplemental Security Income (SSI), there is a limit of $2,000 on total countable assets (https://www.ssa.gov/ssi/).

Best, Jerry