if you work less than 16 hours a week you will still get some jobseekers allowance ,but dont qualify for working tax credit ..........if you work 16 or more you may be entitled to working tax credits as long as your family income does not exceed the maximum not sure what it is at ,at the moment as i cant find it on their site sorry
What hours do you need to work to get Working Tax Credit?
If you don’t have children, you need to work the following hours:
* if you are aged 25 or over, you need to do paid work of at least 30 hours a week
* if you have a disability and are 16 or over, you need to do paid work of at least 16 hours a week
* if you or your partner are aged 50 or over and are going back to work after being on out of work benefits, such as Income Support or Jobseeker's Allowance, you need to do paid work of at least 16 hours a week
If you have children, you need to be aged 16 or over and do paid work of at least 16 hours a week to qualify. if this is the case you should also get child tax credit hope this helps