Hello Boyd
Unfortunately i stopped short of doing the full calcs as it gets pretty complicated.
(1) If we say basis period 5/4/09 tax year is 1/1/09-5/4/09 - simply daily potion of first accounts period
(2) basis period for 5/4/2010 tax year - is first 12 months 1/1/2009-31/12/2009 - this is the tricky bit as it is referenced to 2 different accounting periods - the overlap here should simply be the bit that was already on the 2009 tax return.
(3) basis period for 5/4/2011 tax year is ye 30/6/2010 - it looks like there is some more overlap profit generated here as part of this period has already been included on return (2)
(4) basis period for 5/4/2012 tax year is 1/7/2010-28/10/2011 and the overlaps in (2) and (3) are now relieved.
Do you agree that a 2nd overlap arises on the 6m to 6/10?
Yes i would agree that there is a second overlap generated in (3) but i would say this would be with reference to the period 1/7/2009-31/12/2009 which has been included on (2) and (3).
Once the overlap is offset against the final year, is the balance of the overlap simply offset against the previous year 2010/11?
Not sure what you are saying here
If total overlap at (3) is 10,000 and profit for period 1/7/2010-28/10/2011 is £25,000
Then profits for 11/12 are simply 25,000-10,000 = £15,000 - there is no recalculation for 10/11
Things probably get a more complicated if you are saying the overlap profit exceeds the 1/7/2010-28/10/2011 profits.I would suspect there is a loss for the final period that can be utilised as normal.
I now wish i had done a worked example as this is the best way of ensuring a mistake has not been made somewhere along the way.