Chancellor George Osborne and the Tories want to cut Tax Credits. But what are they and how does the system work today?
What will happen next April if their plans are not stopped?
Here Sky News explain how Tax Credits work and the effect of the changes proposed by the government due in April 2016.
Labour are determined to stop these Tax Credit cuts and protect the 3.3 million working families set to be worse off by an average of £1,100 from next April despite government claims to the contrary.
Labour has launched a campaign to call on David Cameron to stop the tax credit cut.
You can sign the petition at labour.org.uk/taxcredits.