It's important to ensure that the correct month is selected for the start of your fiscal year to allow QuickBooks Online to clear accounting ledgers behind the scenes while you work on other year-end activities.
To confirm or change the first month of your fiscal year:
Select the Gear icon on the Toolbar.
Under Your Company, select Account and Settings (or Company Settings).
From the left menu, select Advanced.
In the Accounting section, verify that the setting in the First month of fiscal year field is correct, or select the pencil (edit) icon to change the setting.
Your fiscal year is confirmed.