What salary do I have to earn to get caught by 40% tax?
Generally each year the amount that you can earn before having to pay higher rate tax (which is currently charged at the rate of 40%) is increased by the government and 2016/17 is no different.
In 2015/16 there was a personal allowance of £10,600 and an allowance of £31,785 which was charged at the basic rate of 20% so in effect you could earn £42,385 before you fell into the 40% tax bracket.
In 2016/17 both the personal allowance and the 20% tax band have been increased to £11,000 and £32,000 respectively so that (assuming you are entitled to the full personal allowance), you could earn up to £43,000 before having to pay any tax at 40%.
Of course it is possible that you may have a different personal allowance or you may have to take into account other earnings or benefits in kind that may take you over the threshold.
However, one benefit in 2016/17 is that you now have a personal savings allowance of £1,000 if you are in the lower rate tax bracket or £500 if you are in the higher rate tax bracket so you will not need to pay tax on savings interest under this amount.
The increase from £42,385 to £43,000 is effectively a 1.45% increase so it is quite possible that if you were close to the threshold in 2015/16 and you have had an increase in your income, that you may now get caught in the 40% tax bracket.