How the DGT's position has evolved
Current position
The subsidiary liability under article 43.1.f of the LGT (General Tax Law) applies to those who contract or subcontract works or services that are part of their main economic activity. This liability is limited exclusively to the portion of the tax obligations corresponding to the works or services subject to the contract.
The DGT's position remains constant in the definition of main economic activity, including services necessary for the organization of work or the production cycle. No significant doctrinal changes are observed, but rather a reiteration of the application criteria for subsidiary liability in subcontracting.
Analysis based on 28 of 32 rulings with a stated position. Updated 24 September 2026.