Coming soon: Microsoft Dynamics GP Year-End Update 2016: U.S. Payroll
Microsoft Dynamics GP Year-End Update 2016: U.S. Payroll – Microsoft Dynamics GP Community
Payroll & HRYear-End & 1099Microsoft & the GP Ecosystem
Archived post from 2016. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.