Changing accounting period (sole trader)

shelleym

I have a client with a year end of the 30th of May so for the tax year ending 5/4/16 his accounts end 30/5/15. I would like to change his accounting period to ending 31/3 to bring him in line with the tax year which would give him a 22 month accounting period from 1/6/14 to 31/3/16 and i would like to know if this would be allowed as i have read that you are not allowed a period of more than 18 months? Any advise on this would be greatly appreciated.

mike150185

If he is in the first three years of trading - https://www.gov.uk/hmrc-internal-manuals/business-income-manual/bim81040

If Year 4 onwards - https://www.gov.uk/hmrc-internal-manuals/business-income-manual/bim81045