Hi. I was out of work due to illness and received Illness Benefit from the state. I understand this is subject to PAYE, so as a higher-rate taxpayer I expect to be paying 40% of it back in PAYE.
On my updated tax credit certificate, I see Revenue has been informed of the first €2412 benefit I received. They have reduced my tax credits by €2412 and also reduced my standard rate tax band by €12064. From what I understand, the effect of reducing my tax credits is that I will pay an extra €2412 in PAYE. And the effect of the tax band reduction is another €12064 x 20% = €2412 in PAYE. So in total, I'll be paying an additional €4824 in PAYE for the €2412 in illness benefit I received.
This seems very wrong - the extra tax being double the benefit received. I'd expect the additional PAYE to be 40% of €2412, i.e. approx €965. Or am I misunderstanding how my tax credits work?

On my updated tax credit certificate, I see Revenue has been informed of the first €2412 benefit I received. They have reduced my tax credits by €2412 and also reduced my standard rate tax band by €12064. From what I understand, the effect of reducing my tax credits is that I will pay an extra €2412 in PAYE. And the effect of the tax band reduction is another €12064 x 20% = €2412 in PAYE. So in total, I'll be paying an additional €4824 in PAYE for the €2412 in illness benefit I received.
This seems very wrong - the extra tax being double the benefit received. I'd expect the additional PAYE to be 40% of €2412, i.e. approx €965. Or am I misunderstanding how my tax credits work?

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