Hi,

You don't need to.  if you are on cash basis which means that expenses are booked when paid.  All 3 invoices will hit the income statement in the year you pay.  If you use accrual accounting system, then it will be when the invoices are booked ( I am assuming you are not using General ledger to book your payments).  So your payments will only impact the accounts payable and cash when paid. And invoices will belong to the year when the invoice was created so they will be split they way you wanted them.

From what I see, you should use accrual accounting, something you can choose in setup.

Remember, you need to inform the IRS of such changes and consult your accountant.

I hope this helps...

[Removed], CPA

[Removed]