Creating separate inherited IRA accounts gives each sibling control and flexibility over their own distribution strategy, allowing them to manage withdrawals in a way that aligns with their financial needs.
It also prevents one sibling’s mistake — such as forgetting to take a required minimum distribution — from negatively impacting the others.
If the IRA is not split, it is typically treated as a single inherited account by the IRS, which can complicate withdrawals and potentially trigger tax penalties.