A SEP IRA is a Simplified Employee Pension (SEP). If she is retired she would not have a SEP IRA. She can roll the 401(k) into a Traditional IRA at a financial institution of your choice. There is no tax on a rollover. She should have the trustee of the 401(k) preform a direct trustee-to-trustee rollover. If she takes the money herself and rolls it over (indirect rollover) then it must be completed within 60 days of the distribution or it will be disallowed and will be taxable.
A SEP IRA is a Simplified Employee Pension (SEP). If she is retired she would not have a SEP IRA. She can roll the 401(k) into a Traditional IRA at a financial institution of your choice. There is no tax on a rollover. She should have the trustee of the 401(k) preform a direct trustee-to-trustee rollover. If she takes the money herself and rolls it over (indirect rollover) then it must be completed within 60 days of the distribution or it will be disallowed and will be taxable.