We have added the rules and regulations announced in yesterday's Summer Budget into this quick and simple calculator.
26-11-15 Update! - Now that the 2015 Autumn Statement has revealed that the Tax Credits changes are to be cancelled, we have updated the below calculator to reflect the newer published figures.
You can calculate to see if you are better or worse off under the rules proposed for 2016. Remember, you can read our summary of the proposals here and the breakdown of the Autumn Statement here.