Greetings, @ben.
Helping you get access to those archived forms is my top priority. As explained in the QuickBooks Online guide to archiving old forms, the available liability periods for archiving previous forms only extends 1-2 years depending on the form. However, as long as you were using QBO Payroll in 2015, the QuickBooks support team may be able to use that information to rebuild the form. Reach out to them by following the steps below:
- Follow the QuickBooks Payroll support link.
- Select QuickBooks Online.
- Click Running your business with QuickBooks > Employees > Get Phone Number at the bottom.
Please know I'll also be available here to help with all of your QuickBooks needs. Thanks for coming to the Community, wishing you continued success.