Good day @lindsay6,
Let me share a few information about your sales tax period.
In QuickBooks, the sales tax period is set to default from January to December every start of the calendar year.
In addition, your sales tax period won't show your actual fiscal year since we aren't on the said month yet.
With this, you can check and verify your sales tax period if it's showing your actual fiscal year. Just pull up your Sales Tax Liability report and choose a Report period to Last Fiscal Year.
Here's a screenshot for your visual reference.
I've attached an article might be handy for your future reference: Sales tax in QuickBooks Online.
I'll be always around to help you here in the Community if you have any other questions.