A roundup account is where we pull your transaction history from to make roundups. This account can be a checking, savings, or even credit account. Each transaction on the linked roundup account will be rounded up to the nearest dollar amount.
Ex. If your transaction is $3.71 then your roundup will be $0.29
Keep in mind that withdrawals are not made from this account, only the funding source (which can be the same as the roundup account or different).