Use a consolidated tax obligation for entities that file one return together, such as a VAT group or a fiscal unity. You can set it up when you create the obligation, or add it to an existing one.
When you create the obligation
Select Add obligation on the entity, choose the obligation and its location, and tick Tax consolidation.
In the extra step, Add consolidation members, choose the location of the consolidation and its name. Pick an existing group to join it, or enter a new name to start one.
Complete the other steps as usual.
On an existing obligation
Open the obligation, select Actions and choose Add tax consolidation.
To start a new group, keep Create new consolidation. Give it a name, choose the location, the return type, such as Consolidated return, and the date the entity became a member.
To join a group that already exists, select Add obligation to an existing consolidation instead and choose the group.
Select Save.
The obligation now shows a Tax consolidation section with the group and its members, so you can see which entities file together.