CAE and subsidies: compatibility of aid.

83Can I collect the CAE if I already received a subsidy?

Generally yes: CAE are compatible with public aid programmes, except those financed from the FNEE (Orden TED/815/2023, art. 14.8).

84Is it compatible with IRPF deductions for efficiency works?

Tax deductions are not subsidies, so they do not fall under the FNEE incompatibility; but note: the amount collected for the CAE reduces the cost of the works that serves as the deduction base. Review the base calculation with your adviser.

85Is it compatible with MOVES or self-consumption programmes?

It depends on the funding source of each call: if the programme is financed from the FNEE, it is incompatible; if it is financed with other funds (e.g. NextGenerationEU), in principle it is compatible. Check it in the regulatory bases or by consulting IDAE.

86Can I waive an FNEE grant to process the CAE?

Yes, provided no payment has been made (not even advances). The express waiver and the managing body's resolution accepting it must be provided to the verifier and the issuance application.

87How is aid declared in the case file?

Through a responsible declaration by the original owner stating whether they have applied for or received aid and, where applicable, the programme, managing body, year, governing regulation and amount (art. 14.9.k).

88Is there a limit if I add subsidy + CAE? Can there be double counting?

If there was a compatible subsidy, the sum of subsidy + income from ceding the savings cannot exceed 100% of the investment (art. 19.3 Ley 38/2003). Without a subsidy, the consideration can exceed 100% (the price is unregulated). The same saving can only be certified and ceded once: the traceability of the contracts guarantees this.

Main sources: official FAQ of the CAE System, MITECO v1.6 (23/04/2026); Real Decreto 36/2023; Orden TED/815/2023; Orden TED/845/2023; Orden TED/133/2026; 2026 market references. This text is informational and has no legal value; the applicable regulations always prevail.