When creating a new tax code record via Setup> Accounting> Tax Code> New> Select Country > On the New Tax Code page, user might encounter Tax Agency field being empty & unable to select any value.
To resolve this:
1. Navigate to Setup > Accounting > Accounting Lists using an Administrator access.
2. On the Accounting Lists page, choose Vendor Category on the Type filter at the bottom of the page.
3. Click Edit next to Tax Agency.
4. On the Edit Vendor Category page, tick the Tax Agency box.
This will make the existing vendor records that are categorized as Tax Agency available again on the Tax Agency field when creating a new tax code.