Personal savings allowance and £100k income

[xyz123]

Hi-Can someone explain how savings allowance is treated for people with £100k plus income? For those with £125k plus limit there is no savings allowance but for income upto 125K,there is £500 allowance. Is this considered as a "seaperate pot" I. E. First £500 savings income is completely tax free and savings income above that is subject to tax (effectively 60% tax for 100k.plus income due to partial loss of tax free allowance).

Thanks

[xyz123]

Sunday Bump..