I have an employee in south carolina. My business is based in Florida. To which state do I pay SUI? Quickbooks is defaulting to FL, but SC says it is them.

It's good to see you reaching out here in the Community space, nathan26.

The payroll taxes like state and withholding taxes are based on the employee's residence location as well as employees work location. Thus, those taxes are calculated and reported differently, depending on the laws of the particular state where the employee lives or work. 

In your case, to ensure that South Carolina calculates the taxes, let's check that it is the one set up as your primary work location. 

Here's how:

1. Click the Gear icon and choose Payroll settings.
2. Pick Work Locations, then select Add a Work Location.
3. Enter South Carolina as the Work Location. 
4. Hit Save when done.

However, if you're unable to change the primary work location, I recommend contacting our Payroll Support to get this done. They have the necessary tools to pull up your account in a secure environment and help you with the correct setup. 

Follow these steps to contact our Payroll support:

1. Click this article Support hours and types.
2. Expand the Online Payroll section.
3. Hit Start a message on the product that you're subscribed to.

To know more about how multistate works, check this resource: About multistate employment payroll situations.

For future reference, you may find this helpful:

Update your State Unemployment Insurance (SUI) rate in QuickBooks or Intuit Payroll.

If you have any other payroll questions, feel free to post in the Community again. We're always here for you. Wishing you and your business continued success. Take care always.