Jamie, thank you for your reply.
Here is some practical advice from a practising accountant who does this sort of work on daily basis...
Your accounting perid end is 31 Mar and the first set of accounts due at Companies House are for the period to 31 Mar 2015. You have not traded for the period 18/19 Mar 2014 to 31 Mar 2014 and started to trade on 1 Apr 2014.
Your first set of accounts should be for the period 01 Apr 2014 to 31 Mar 2015 (12 month period) and your CT600 return should state that.
If this date is not shown in the menu (accounting period dates) then you can make changes and select this date.
You should write to HMRC (Your tax Office) and advise that the company was dormant for the period 18/19 Mar 2014 to 31 Mar 2014. You will not have to file a CT600 return for this period.
I will happily review your figures once you provide the accounts to cover period 1 Apr 2014 to 31 Mar 2015.
If I were you, I will opt for abbreviated accounts version.
Provision for tax - line AC34 £4,943
profit before capital allowance
46,867-(19000+150) = 27,117
cost of tangible assets (claim 100% AIA) say it is £2,400
Profit after capital allowance
(27,117-2,400) = 24,717
CT provision 24,717 x 20% £4,943
I hope this is helpful and answers your question.
If you have any other questions, please ask me before you rate my service – I’ll be happy to respond.