How do i calculate child support amount that needs to come out check?

The court order should give you the amount and, if like our state, will break down the amount based on payroll frequency.  You cannot take out more or less than the order, except when the ordered amount exceeds 50-65% of disposable income per the guidelines

https://www.acf.hhs.gov/css/resource/processing-an-income-withholding-order-or-notice

Note, there is no way, together than using a calculator and pen and pencil to determine the max each pay period - you have to do the math. This is usually more important for a parttime worker or one who for whatever reason worked less.

Thanks for your reply, as you can see I'm new to that part of payroll.  I asked the employee and all they could tell me is they don't know, the last employer just figured it out for him.  

Hello there, pam38,

While QuickBooks Online calculates your taxes based on the employee's information entered in the system, I highly suggest contacting your state agency. This is to know how much the amount should be for the child support deduction.

Once you have the amount, you can add a garnishment item in QuickBooks. Let me show you how:

1. From the left menu, select Workers, then Employees.
2. Click the employee's name.
3. Select edit ✎ beside Pay.
4. Choose edit ✎ to add a deduction.
5. On the drop-down, select Garnishment and Garnishment Type.
6. Enter the description, amount requested and the maximum percent of disposable income.
7. Click OK.

Feel free to read through these handy related articles for additional information:

• Compliance with wage garnishment orders
• Setting up a wage garnishment.

Should you need anything else, don't hesitate to post again here in the Intuit Community. We're always here to help.