PAYE regulations may provide—
(a)that sums accountable for by an employer under a PAYE settlement agreement, or any other sums, are not to be treated for any prescribed purpose as tax deducted from general earnings;
(b)that an employee is to have no right to be treated as having paid tax in respect of sums accountable for by the employer under such an agreement;
(c)that an employee is to be treated, except—
(i)for the purposes of the obligations imposed on the employer by such an agreement, and
(ii)to such further extent as may be prescribed,
as relieved from any prescribed obligations of the employee under the Income Tax Acts in respect of general earnings from an employment to which the agreement relates; and
(d)that such earnings are to be treated as excluded from the employee’s income for such further purposes of the Income Tax Acts, and to such extent, as may be prescribed.