I recently discovered a post where the Tax Mapping tab in Fiscal Positions was removed and instead transferred to the Tax form, where you can enter the Fiscal Positions the tax applies to so that it replaces any other tax in the Replaces field. Ref: https://www.odoo.com/forum/help-1/tax-mapping-tab-missing-in-fiscal-positions-279786

BUT when I tried to create a new Tax, I can put the Fiscal Position(s) the tax applies to, but the "Replaces" field is not there.

On checking existing taxes pre-configured for my localization, I noticed those with pre-configured Fiscal Position, there is a "Replaces" field. Those that don't have Fiscal Position, don't have "Replaces" field even if you add a fiscal position value on them.

Is there a step I need to do to show the Replaces field in the Tax form?