Yes, you can enter transactions that are beyond the starting date of using QuickBooks, szparaga-dominik.
You just need to make sure that the transaction dates are correct. Here's how:
- Click the Create menu (+) and select the transaction you want to record.
- Enter the transaction details.
- Click Save and close.
After recording the transactions, you should be able to close the books. You can refer to this article for more information: How to Close the Books.
I'll be right here if you need more assistance with this.