I am just after some advice please. I have already submitted a CT600 to HMRC, deadline is 31st March 2017. I have realised that i have made a mistake on the return. Instead of using a tax relief box for current year losses against total profits, i have used a 'non taxable' box within the loan relationships section. The outcome of this is still the same, relief claimed. The company has made a trading loss this year. My question is, how significant will this be to HMRC? Does it warrant an amended return, and re-tag the whole thing again? Any advice would be much appreciated.
Thank you in advance!