In QuickBooks Online Payroll, there's no need to enter the EFTPS PIN, chamman13.
I'm happy to inform you that all you have to do is to activate your Electronic Service. Then, you'll be able to e-pay and e-file your tax liabilities and forms within the system.
Here's how to activate it:
After that, it will take about 2 banking days to confirm the test deposit.
Let us know if you have any questions. Thanks!