I'll make sure that you'll be able to discontinue QuickBooks from paying your taxes.
Follow these steps:
By default, form filing and automated tax payment are enabled. From February to December, you can turn this off to let you control your tax payments and form filing.
Go to Settings ⚙ icon, then choose Payroll Settings.
From the Taxes and forms section, tick the checkbox beside the Automate taxes and forms.
After turning it off, you'll be able to see reminders in your payroll to-do list when your tax payments and form filings are due. See steps in Pay and file payroll taxes online to make a payment or file payroll taxes.