California offered checks to undocumented families. An IRS backlog is holding them up for many

Alfredo Gaudencio Diaz, an undocumented immigrant from Mexico, applied to renew an IRS processing number for people who don’t qualify to receive Social Security Numbers early this year when he started filing his taxes.

The process should take two months, the Ontario resident thought.

But six months later, Diaz, 42, said he has yet to hear back from the Internal Revenue Service about his Individual Taxpayer Identification Number.