You could be eligible for Working Tax Credit to top up your earnings if:
The amount will vary according to your income, how many hours you work and your circumstances. Contact the Tax Credit Helpline on 0845 300 3900 (text-phone 0845 300 3909) or your local benefits or Jobcentre Plus office for a Working Tax Credit application pack.
Alternatively, you can find lots more information and fill out an online form to see if you are eligible at www.taxcredits.inlandrevenue.gov.uk

Circle Anglia's benefits calculator
You may be eligible to claim Housing Benefit from your local council to help with your rent, even if you are working. The amount you receive depends on your income (including some benefits that you may receive), your savings, and your circumstances.
If you live with a partner, only one of you can get Housing Benefit for your home. For an application form, contact your local council or log onto their website to download a copy.
You may also qualify for help towards your council tax, even if you are working. Any Council Tax Benefit you receive will be paid by your local council as a rebate on your council tax bill.
Contact your local council or log onto their website for an application form.
If you work on average less than 16 hours a week and you live alone or with a partner who works less than 24 hours a week, you may be able to claim Income Support or Jobseeker’s Allowance.
Contact your nearest Jobcentre Plus office for more information or to make a claim for Income Support or Jobseeker’s Allowance.
Also, if you have children, you could get further assistance: