I am a single mum of two. I work 30 hours a week. I have been with my bf for over 2 years and we want to live together. He also has 2 kids who don't live with him. If we live together it seems I will lose all my tax credits because of his wage. He is far from wealthy because he pays a large maintenance payment every month, 600 pounds. Idepend on childcare to go to work which costs between 500 and 800 plus a month, dependingon school hols etc. There is no way I can pay this, a mortgage, bills and everything else on my own without my tax credits. He cannot afford to either.So I am better off as a single mother until my children grow up? Surely that can't be right!