I am trying to add an employee that works in Canada but lives in the US (close to the border) but I can't put in her address on the TD1 form b/c she is a non-resident.

Hi there, 

Welcome to the Community. I got you covered with setting up a non-resident employee in QuickBooks Online. 

Setting up a non-resident employee in QuickBooks Online is pretty easy. To complete the employee’s setup, you can use a dummy SIN for that employee. However, you can change the information you entered in QuickBooks anytime.

To add an employee:

1. Select Employees.
2. Select Add an employee.
3. Enter the employee’s information.
4. Select Save.

To edit an employee’s information:

1. Select Employees.
2. Under Action, select Edit.
3. Edit the information you want to change.
4. Select Save.

To make an employee payroll exempt, here’s how:

1. From the left menu, select Employees.
2. Select the Employee you need to make exempt.
3. Select Edit Employee.
4. Select the pencil/edit icon for option 1.
5. Scroll down to Tax Exemptions.
6. Select CPP and/or EI.
7. Select Done.

Let me know if this info helps. In case you have other questions, feel free to contact our support team using this link here.