I have a corporate which ceased trading on 30th September 2017 and had a trading loss of £25200 for the 18 month period of account ending on that date. All previous periods were to 31 March.
My understanding is that I can use losses arising in the final 12 months (12/18 x £25200 = £16800) against profits arising in the preceding 36 months on a first in first out basis.
There are no taxable profits for the years ended 31 March 2016 and 2015 but 2014 shows TP of £25k, so am I correct in assuming that I can effectively claim for the part period of 1 October 2013 to 31 March 2014 for £12.5k loss relief to generate a £2.5k CT refund, or would that be limited to 6/12 of the terminal loss equating to £8400 giving a CT refund of £1680?
In addition, what do you find is the most effective way of making the claim - a letter?
Thanks in anticipation.