Don't have SS for dependents and spouse

[MBR C]

I'm new to filing, and my client doesn't have a social for her spouse and some of her kids. This is causing a whole bunch of diagnostics, which got the return rejected. How do I go about filing? Should I leave out the spouse and dependents from the return? 

[TaxGuyBill]

Do they not have Social Security Numbers at all?  Or can your client just not find the SSNs?

Do they have ITINs (which are usually issued for people who don't have and don't qualify for a Social Security Number)?

If the spouse and kids don't have SSNs or ITINs, it would likely be beneficial for them to apply to get ITINs so they can be included on the tax return.  I would refer them to a Certifying Acceptance Agent to get the ITINs.

https://www.irs.gov/tin/itin/itin-acceptance-agents

[BobKamman]

What filing status does she want to use?  Not a joint return, I hope.  And how do you know she has those children?  Maybe she brought them to the office, and they call her Mommy.  This cries out "Avoid" to a new preparer.