Is it possible to include professionals persons (holding TVA) within the personnel budget of the project as in-house-consultants?

You find the rules concerning in-house-consultants in the AGA 4.0 p. 72: Direct personnel costs: Natural persons with direct contract (A.2) 1.2.1 What? This budget category covers typically the costs of in-house consultants and similar persons (i.e. self-employed natural persons) that worked on the action for the beneficiary under conditions similar to those of an employee, but under a contract which is NOT legally the same as for employees. It regards, in particular, contracts qualified as quasi-subordinate work contracts under national law when the conditions under which the work is carried out are similar to those of an employee. Tubular Doom Sock