3

Where it is finally determined that any tax carries interest under thissection, the tax shall carry no interest under section 86 or 86A above (and,accordingly, any interest under either of those sections which has been paidbefore the final determination shall be set off against the amount of theinterest under this section); and for the purposes of this subsection adetermination that tax carries interest is not final until it can no longerbe varied, whether by any Commissioners on appeal or by the order of anycourt.