I wonder if anyone can help me with a question about tax rates on bonuses please. DH works in the private sector and is very lucky in that he gets a bonus. This year his bonus was 40k. The payment has just arrived in his bank account and after tax it is £17.6k. It’s been the same in past years. He earns 82k so his bonus always takes him over the £100k mark so he needs to fill in a self assessment which always results in an extra 3-4K tax payment in January meaning his bonus cash in hand is £14.5k from a gross payment of £40k. Between £100-150k the tax rate is 40% so I’m struggling to understand why he is taxed at 63% when this is the tax rate that doesn’t exist in the UK? Can anyone please shed any light as I’ve been struggling for the past few years to work this out?