Can I file my brother's income tax if I am his legally designated DPOA?

[TomK2023]

Yes, you can file your brother's tax return as long as you are his Designated Power of Attorney.

Per TurboTax Expert VanessaA:

"If you have a POA for her other than the form 2848,  you can still file as her Power of Attorney.  If you are e-filing, you will need to be sure to keep a copy of the POA with her return in case of audit or need for other correspondence with the IRS.

You can also mail a copy [to the IRS] of her POA to the address listed here for form 2848 for your state."

Form 2848 - Power of Attorney and Declaration of Representative (page 1)