UK tax credit scheme in trouble

The latest tax problem to hit the UK goverment is the tax credit scheme. Apparently about £2.8 billion was overpaid and the authorities asked for their money back. But people challenged this, using the Freedom of Information legislation to obtain evidence that the Inland Revenue had been incompetent when they made the overpayments. Most of the losses will now have to be written off.

How long will it take the government to realise that the whole tax system is broken?