hello all, hope someone can help
i am preparing my self employed partner first tax return for year 2017/18. When informing hmrc of his starting working for himself we showed 1st of March as start of trading. However preparing his tax return I realised he actually incurred some expenses such as tools etc I would like to show in tax return. Will hmrc accept if I put starting date as 1st of February and include these costs he incurred in February?