Doctrine by topic · DGT Observatory

Eighteenth Transitional Provision: DGT doctrinal evolution

How the DGT's position on this topic has evolved, and the rulings it rests on.

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How the DGT's position has evolved

Refined position High confidence 19 rulings · 2015–2025

Current position

To apply the deduction under the 18th Transitional Provision of the IRPF (Personal Income Tax) Law, it is essential to have applied the deduction for amounts paid in a period prior to January 1, 2013. According to the TEAC (Economic and Tax Administrative Tribunal) criterion, only those who did not use it before 2013 because they were not required to file a tax return or because they had no total tax liability may apply it. Those who, being required to file a tax return, did not apply it despite having sufficient tax liability, may not apply it.

The DGT's position remains stable regarding the requirements of the 18th Transitional Provision, focusing on the continuity of the deduction initiated before 2013. The evolution shows greater precision regarding the loss of the right due to the loss of ownership or habitual residence. The most recent ruling incorporates the TEAC criterion to limit access to those who did not exercise the right due to a lack of obligation to file a tax return or lack of total tax liability.

Turning points

  1. V1029-23

    Establishes that the right to the deduction is linked to the ownership of full title or an undivided share, being lost upon ceasing to be the owner even if residence or the debt is maintained.

  2. V1709-25

    Incorporates the TEAC criterion to restrict the application of the deduction solely to those who did not use it before 2013 because they were not required to file a tax return or lacked total tax liability.

Analysis based on 19 of 19 rulings with a stated position. Updated 25 September 2026.

Rulings on this topic

19
V1709-25 19 Sept 2025

Prerequisites for claiming home ownership deduction after 2013 repeal

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualrégimen transitoriodisposición transitoria decimoctavacuota íntegraperiodo impositivo LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. 70.1
Affects CompanyExpat · Non-residentIndividual
V1344-25 16 Jul 2025

Deduction for home investment not available for 2024 purchase

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualrégimen transitorioadquisición de viviendadisposición transitoria decimoctava LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. disposición transitoria decimoctava
Affects CompanyExpat · Non-residentIndividual
V1671-23 13 Jun 2023

Tax deduction for investment in main residence cannot be applied to new construction

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualrégimen transitoriovivienda habitualreconstrucción de viviendadisposición transitoria decimoctava LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. DT 18ª
Affects CompanyExpat · Non-residentIndividual
V1029-23 26 Apr 2023

Deduction for main residence cannot be applied if property ownership is lost

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualtitularidad del pleno dominiodisposición transitoria decimoctavaresidencia habitualparte indivisa LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. disposición transitoria 18ª
Affects CompanyExpat · Non-residentIndividual
V1590-22 30 Jun 2022

Right to main residence tax deduction is not lost if not claimed in a specific tax year

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualdisposición transitoria decimoctavaejercicio fiscalcuota íntegrarégimen transitorio LIRPF — Ley 35/2006 del IRPF art. DT 18ªLGT — Ley 58/2003 General Tributaria art. 89.1
Affects CompanyExpat · Non-residentIndividual
V3181-19 15 Nov 2019

Deduction for main residence can be maintained when replacing a mortgage loan

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualrégimen transitoriosubrogación de préstamoamortización de principalfinanciación ajena LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. 70
Affects CompanyExpat · Non-residentIndividual
V2231-15 16 Jul 2015

Reinstatement of main residence investment tax relief under transitional regime possible

SG de Impuestos sobre la Renta de las Personas Físicas
deducción por inversión en vivienda habitualrégimen transitorioresidencia habitualvivienda de propiedaddisposición transitoria decimoctava LIRPF — Ley 35/2006 del IRPF art. 68.1LIRPF — Ley 35/2006 del IRPF art. 68.1.2º
Affects CompanyExpat · Non-residentIndividual

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