Doctrine by topic · DGT Observatory

Back pay: 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

Settled doctrine High confidence 125 rulings · 2016–2026

Current position

Back pay constitutes employment income that must be attributed to the tax period in which it becomes due according to the administrative resolution of recognition. If payment is delayed due to causes not attributable to the taxpayer, it must be attributed to the original periods of due date through supplementary tax returns without penalties or interest. The 30% reduction applies if the generation period exceeds two years and the income is attributed to a single tax period.

The DGT's position remains constant throughout the sequence. It is repeatedly confirmed that temporal attribution must be made in the years when the income is due and not in the year of actual collection. The doctrine regarding the application of the 30% reduction and the absence of penalties for errors in temporal attribution is uniform across all rulings.

Analysis based on 124 of 125 rulings with a stated position. Updated 17 September 2026.

Rulings on this topic

24
V1275-26 25 May 2026

Judicially recognised salary difference deemed taxable income

SG de Impuestos sobre la Renta de las Personas Físicas
rendimientos del trabajoimputación temporalexención por responsabilidad civilfirmeza de la sentenciaatrasos LIRPF — Ley 35/2006 del IRPF art. 7.dLIRPF — Ley 35/2006 del IRPF art. 14.1
Affects CompanyExpat · Non-residentIndividual
V2578-25 18 Dec 2025

15% retention applies to salary arrears imputed to prior years

SG de Impuestos sobre la Renta de las Personas Físicas
imputación temporalrendimientos del trabajoretenciónatrasossentencia judicial LIRPF — Ley 35/2006 del IRPF art. 14.1LIRPF — Ley 35/2006 del IRPF art. 14.2
Affects CompanyExpat · Non-residentIndividual
V1082-25 25 Jun 2025

Delays from 2023 GDP increase must be taxed in 2024

SG de Impuestos sobre la Renta de las Personas Físicas
imputación temporalrendimientos del trabajoexigibilidadatrasossector público LIRPF — Ley 35/2006 del IRPF art. 14.1LIRPF — Ley 35/2006 del IRPF art. 14.2.b
Affects CompanyExpat · Non-residentIndividual
V0677-25 15 Apr 2025

Judicial delays attributed to the 2024 exercise

SG de Impuestos sobre la Renta de las Personas Físicas
rendimientos del trabajoimputación temporalresolución judicial firmeperíodo de generaciónreducción por irregularidad LIRPF — Ley 35/2006 del IRPF art. 14.1LIRPF — Ley 35/2006 del IRPF art. 14.2
Affects CompanyExpat · Non-residentIndividual
V0585-25 1 Apr 2025

15% retention due on salary arrears from prior fiscal years

SG de Impuestos sobre la Renta de las Personas Físicas
salarios de tramitaciónimputación temporalatrasosretenciónsentencia firme LIRPF — Ley 35/2006 del IRPF art. 14.1LIRPF — Ley 35/2006 del IRPF art. 14.2
Affects CompanyExpat · Non-residentIndividual
V1647-24 8 Jul 2024

30% reduction applicable to income generated over a period exceeding two years

SG de Impuestos sobre la Renta de las Personas Físicas
rendimientos del trabajoperiodo de generaciónreducción del 30%complemento de destinoimputación temporal LIRPF — Ley 35/2006 del IRPF art. 14.2.aLIRPF — Ley 35/2006 del IRPF art. 14.2.b
Affects CompanyExpat · Non-residentIndividual

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