From Ian Grieve: Hands On With Microsoft Dynamics GP 2016 R2: Display Tax Percent for Historical Sales Transactions
Hands On With Microsoft Dynamics GP 2016 R2: Display Tax Percent for Historical Sales Transactions | azurecurve azurecurve
Microsoft & the GP EcosystemGP 2016
Archived post from 2017. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.