We have recently (Nov 2018) bought a company that has been in business for over 20 years, but recently just started using QB. My question is, is there a way that I can go into QB and input the invoices, say like from 2015, so that when I pull up a specific company I can see what they have purchased in the past?
Welcome to the Community. Let me help share some information about adding old invoices in QuickBooks.
Yes, you can add an old invoice into QuickBooks. However, this will affect your books from that previous year and your A/R balance for this year. If you don't want that, It'd be best to keep the old file available instead for the historical data.
Keep me posted if you have other questions about your invoice. I'll be here to help however I can.