If you're earning more than £50,000 and have children under 18 and in full time education you should be aware of the Higher Income Child Benefit Charge (HICBC).
In simple terms this is a tax on your child benefits.
If you one of the parents affected by this, then you should read this important article.
Train wreck The high income child benefit charge (HICBC) was introduced to claw-back child benefit paid to higher earning families from 7 January 2013. The charge applies where the benefit claimant, or their partner, has annual adjusted net income of £50,000 or more. The full amount of child benefit is clawed-back if the higher earner’s annual adjusted net income is £60,000 or more. Speaking in at the Digital conference in 2012, Rebecca Benneyworth made this prediction about the HICBC: “It is the train wreck we were expecting and it’s picking up speed. It’s going to be a disaster for us and even worse for HMRC.”