Working for a company where there is data on different bookkeeping systems for different financial years and year end has not been run.
2009 is on Sage, 2010 is on a cloud package and 2011 and 2012 are also on the cloud package but in a new company file.
As one can imagine opening balances and the individual years don't reconcile to one another.
I have been told to effectively draw a line and process some adjusting entries. However that is not seeming as straightforward as it sounds and what if there are past errors in the VAT records?
As has been suggested for similar problems on other threads, the only sure-fire way of knowing that things are up-to-date and everything is included is to take all the data together, start from the earliest known position, and enter it all yourself, reconciling and checking as you go. Once you've included everything on all the existing systems and entered what you need to complete the reconciliations (of all balance sheet accounts, not just the bank statements, if possible), then you can compare with what the situation is now and fix anything else that's wrong.
It'll take some time, but at the end of it you know 100% where you are, and that will save you no end of trouble later on.
