I am a bit confused how this works. Usually one sees a comment saying you may claim tax relief at your highest rate for nursing home costs. One can be tempted to think that the cost will then be reduced by the higher tax rate. I assume to achieve this one has to be liable to pay this amount of tax. if say Nursing home costs came to 80K euro yearly and a persons income is much the same then will all the tax charged and paid be refunded...I apologise for not putting my query in a more clear fashion.