Can I make changes to an employee's deductions and then run a "test" payroll to see the changes?

Yes,hmmwv1999 .

You can run a test payroll via a trial account without adding a bank in QuickBooks Online (QBO).

Using this sample drive, you can explore and experiment with the features and options that you might not feel comfortable trying in your own QuickBooks Online account. Please take note that the app will not save the changes you make.

See this link for the UK test drive: https://qbo.intuit.com/redir/testdrive.

Once you've managed to get a trial account, follow these steps to add employees:

1. Go to the Payroll menu and click on Employees.
2. Enter General Information about paying your employee.
3. Click on Add an employee and complete employee information.
4. Select Done.

Once you've completed all the necessary info for each employee, you'll see a list of your employees on your payroll.  Then, you can now run your payroll. Here's how:

1. Go to the Payroll menu and select Employees.
2. Click on Run payroll.
3. Choose a pay schedule for your payroll and click on Continue.
4. Select Preview payroll details or Submit payroll.
5. Click Finish Payroll.

You can find additional information about payroll in the following resources:

• Get started with Payroll
• Payroll 101

Keep your post coming if you have more questions about running test payroll in QBO I'm always here to help. Keep safe and more power to your business!