If you’ve got children you could get tax credits, but you don’t need to have children to claim. You may also qualify if you are working and on a low income.
Check if you qualify: http://www.hmrc.gov.uk/taxcredits/start/who-qualifies/quick-questionnaire.htm
For further information on the UK’s customs and tax: www.hmrc.gov.uk/
|– National Insurance Number|
|– National Insurance Contributions|
|– Child Benefits|