I get Carers' Allowance when my son is home from uni, and I gave up a career where frankly I could earn double a week's Carers Allowance in a single day, if I could have worked. Even though my son is now at uni (which would have seemed an impossible dream when he was a kid even a teenager), I can't return to my old profession as I am hopelessly out of date, can get no references, and there is no mechanism for re-training or helping carers return to the jobs they were maybe expensively trained for, and experienced in but had to give up when a disabled child came into their lives... I used to be a teacher and a day's supply work would be double what Carers Allowance has been. So we live on my husband's minimum wage and tax credits has actually kept us afloat as a family.
Like many other families, our child also got DLA - in his case for life as there is no known 'cure' for his condition. But now he will lose most of it as the changeover to PIP happens as the criteria for getting the higher rate have changed so drastically. (Essentially like thousands of other disabled people, he will be robbed by this government as he was promised DLA "for life" but there is no way he will qualify for the higher rate of PIP, maybe not get it at all even though his disabilities - he has ore than one - will remain).
So yes - many carers depend on tax credits. There are no mechanisms to help us re-train or return to the jobs we once did before we were Carers. Teaching is all I know how to do. We are told there is going to be a shortage of teachers. Yet the government also ended the Return To Teaching courses that got you back in the saddle (education changes fast) and got you to the point you'd have a couple of usable references, to go to agencies. Many Carers must, like me, be people who could return at least part time but sadly employers are not magical fairies, like the tories seem to think, who will suddenly mysteriously pay their workers a wage they can live on or create free training programmes to ease carers back into the work-force...