I'm trying to import transactions for June but keep getting a error saying - ERangeError: Date 3 June is not within current open year - is this because I have started a new financial year??

@RuaFarm Hi, sounds like you need to open the 2018 financial year, to allow transactions from June onward to come into your transaction screen.
Check out the following link, for details on how to open the new financial year https://community.crssoftware.co.nz/topic/168/how-do-i-create-a-new-financial-year