@user17597544422 ,
(a) Since you have answer by mail anyways, I would sign the applicable box -- i.e. I am a resident alien, and have to file a return.
(b) While I don't know the term "CAA", I am assuming that what you have done is to attach the W-7, the required document copies ( certified by an agent or at an IRS office in the USA ) to your 2024 return with MFJ filing status and mailed the whole thing to the IRS. If you sent the W-7 with docs and not the 1040 along with it then perhaps it would be good idea to also attach ( to the reply ) a copy of your 1040. What they are looking for is that you are asking for an ITIN for your spouse for purposes of filing a joint return.
They will not issue ITIN for any other reason -- it is only for purposes of filing a return ( whether NRA is resident in the USA or not ).
Also note that if your spouse is on a dependent visa, and despite her having ITIN, for tax purposes her tax status would be the same as yours.
Which country are you from ? Is your spouse from the same country ?
Does this make sense ?
Is there more I can do for you ?
