S20(3), says that no decision under S20(1) may be made
This means that if you can still open a S19 enquiry then you must do so. However, S20(3)(b) places an over-riding time limit on a discovery decision. Such a decision can only be made if it is actioned within 12 months of the date on which the income tax liability is revised.
Scott submits his 2003/2004 tax return and S17 notice on 2
August 2004. A S18 final decision is made on 22 August 2004. On 1
November 2004 Scott amends his return because he realised he had
understated his car benefit by £800. The information is passed
on to the CCRO.
Scott’s NTC enquiry window is due to close on 31
January 2006 which is the date his 2003/2004 tax return will become
final unless an enquiry is closed before that date.
The consequential adjustment for the revised income tax
liability is considered for NTC purposes in December 2004. At this
stage the enquiry window is still open. So if the NTC award is to
be revised you must open a S19 enquiry.
Sophie also submits her 2003/2004 tax return and S17 notice on 2
August 2004 and again a S18 final decision is made on 22 August
2004. On 1 February 2005 Sophie’s tax office opens a S9A
enquiry because she appears to have understated her car benefit. On
11 March 2005 the tax office issues a closure notice and amends her
return to reflect an additional £900 car benefit. The
information is passed to the CCRO. The error arose because Sophie's
employer gave her incorrect details about the list price of her
car. It is accepted there has been no neglect by Sophie.
Sophie’s NTC enquiry window closed on 11 March 2005
(rather than on 31 January 2006) because this is the date on which
her SA return becomes final.
The consequential adjustment for the revised income tax
liability is considered for NTC purposes in April 2005. The NTC
enquiry window has now closed but it is only one month after the
revision to her income tax liability so a S20(1) discovery decision
can be made.
Bob’s situation is exactly the same as Sophie’s but
the adjustment to the income tax liability was not referred to the
NTC team at the appropriate time. It finally came to light in May
2006. S20(3)(a) is satisfied because the NTC enquiry window closed
on 11 March 2005 but S20(3)(b) is not satisfied because it is now
more than 12 months since Bob’s income tax liability was
revised.
It is therefore not possible to revise the NTC award under
S20(1). If Bob’s failure to return the correct amount of car
benefit for NTC purposes arose out of fraud or neglect (
CCM13170) it will be possible to make a
discovery decision under S20(4) If, however, there is no fraud or
neglect then the previous conclusive decision must stand.