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Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones)

Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones)

AVISO DE DEDUCCIÓN DE INVERSIONES

Conforme a los Artículos 36 y 37 de la Ley del Impuesto sobre la Renta

I. DATOS DEL CONTRIBUYENTE

Nombre / Denominación Social: [Taxpayer Name]

RFC: [Taxpayer RFC]

Ejercicio Fiscal: [Fiscal Year]

Representante Legal / Responsable: [Legal Representative]

II. DATOS DEL ACTIVO / INVERSIÓN

Descripción del Bien: [Asset Description]

Tipo de Inversión: [Asset Category]

Fecha de Adquisición: [Acquisition Date]

Fecha de Inicio de Uso: [Service Date]

CFDI de Adquisición (UUID): [CFDI Reference]

III. CÁLCULO DE LA DEDUCCIÓN

Monto Original de la Inversión (MOI): [MOI]

Porcentaje Máximo Anual de Deducción: [Depreciation Rate]

Método de Deducción Elegido: [Deduction Method]

Deducción del Ejercicio [Fiscal Year]: [Annual Deduction]

Depreciación Acumulada a la Fecha: [Accumulated Depreciation]

El MOI se actualiza por el factor de inflación INPC conforme al Artículo 37 de la LISR, utilizando el INPC publicado por el INEGI. La deducción se calcula sobre el MOI actualizado, proporcionalmente a los meses de uso en el ejercicio.

Los activos fijos se registran en el libro de activos fijos del contribuyente conforme a los requisitos del Artículo 28 del Código Fiscal de la Federación (CFF), y la documentación soporte se conservará por un mínimo de cinco años.

IV. DECLARACIÓN

El contribuyente declara bajo protesta de decir verdad que la inversión descrita cumple con los requisitos de deducibilidad establecidos en los Artículos 25 fracción IV, 31, 36 y 37 de la Ley del Impuesto sobre la Renta, y que el CFDI de adquisición y los comprobantes de pago correspondientes se encuentran en poder del contribuyente para su presentación al Servicio de Administración Tributaria (SAT) en caso de revisión.

FIRMA

En [Notice City], a [Notice Date].

CONTRIBUYENTE / REPRESENTANTE LEGAL:

[Taxpayer Name]

[Legal Representative]

Firma: _________________________ Fecha: _________________________

Taxpayer / Legal Representative (Contribuyente / Representante Legal)

________________

Signature

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What Is a Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones)?

An Aviso de Deducción de Inversiones Mexico is a formal internal and fiscal record — and in certain cases a notification filed with the Servicio de Administración Tributaria (SAT) — documenting the classification of fixed assets (activos fijos), deferred assets (gastos diferidos), pre-operating expenditures (gastos preoperativos), and technical improvements (mejoras a activos) acquired or placed in service by a Mexican taxpayer, together with the elected depreciation method, applicable maximum annual depreciation rates, and any election to take an immediate deduction (deducción inmediata), in compliance with Artículos 36 and 37 of the Ley del Impuesto sobre la Renta (LISR), published in the Diario Oficial de la Federación on 11 December 2013.

Artículo 36 LISR establishes the general rules for deducting investments: the deduction must be made through annual depreciation charges calculated on the original amount of the investment (monto original de la inversión — MOI), applying the maximum percentages specified in Artículos 35, 36, and 40 LISR depending on the asset category. The MOI is defined in Artículo 31 LISR as the acquisition cost plus installation, assembly, transportation, and other costs necessary to put the asset in working condition, less any discounts or rebates received. Assets must be individually tracked and their MOI, acquisition date, and depreciation history maintained in the taxpayer's asset register (registro de activos fijos) as part of the contabilidad obligatoria under Artículo 28 CFF.

Artículo 37 LISR provides the mechanics for computing the annual depreciation deduction: the MOI is multiplied by the applicable maximum percentage to produce the annual deduction amount; only months in which the asset was used in the taxable year are counted; and the deduction is taken in the annual ISR return filed with the SAT within three months of fiscal year end (Artículo 76 fraction IV LISR). The maximum depreciation percentages for common asset categories under Artículo 40 LISR include: 5% for industrial buildings and industrial facilities; 10% for rail cars, ships, airplanes (except commercial passenger aircraft); 25% for automobiles, trucks, and buses; 30% for computer equipment and peripheral devices; 35% for die casting, molds, and matrices; 50% for assets used in the generation, transmission, and distribution of electricity or heat; 100% for assets used in the maquila industry under certain conditions.

The deducción inmediata (immediate deduction) regime — previously available in Artículo 220 LISR (abrogated 2014) and partially reinstated for certain sectors through the Estímulo Fiscal established by the LISR reform published in the DOF on 12 November 2021 — permits qualifying taxpayers to deduct a specified percentage of the MOI in the year of acquisition rather than spreading it over the asset's useful life. The reinstatement applies to taxpayers with revenues up to $25 million MXN in the prior year and covers investments in certain productive assets at percentages significantly above the standard annual rates (for example, 89% for certain computer equipment versus the standard 30%). Electing the immediate deduction requires documentation in the annual ISR return and supporting records.

The Aviso de Deducción de Inversiones consolidates all this information into a structured record that supports the taxpayer's ISR annual return, VAT (IVA) input tax credit calculations under Artículo 5 of the Ley del Impuesto al Valor Agregado (LIVA) — which requires allocation of IVA credits between taxable and exempt activities based on asset use — and defends the deductions in the event of a SAT audit (visita domiciliaria, revisión de gabinete, or revisión electrónica under Articles 42–46 CFF).

When Do You Need a Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones)?

An Aviso de Deducción de Inversiones Mexico is needed whenever a Mexican taxpayer subject to Title II (Personas Morales) or Title IV Chapter II (Personas Físicas with Actividades Empresariales y Profesionales) of the LISR acquires, constructs, or places in service a fixed asset or other depreciable investment that will be charged to the ISR annual return.

The notice is required at the time of acquisition: every asset placed in service must be entered into the taxpayer's activos fijos register with its MOI, acquisition date, asset category, applicable depreciation percentage, and accumulated depreciation to date. This record must be maintained under Artículo 28 CFF and produced to the SAT upon audit request.

A formal Aviso is particularly important when the taxpayer elects the immediate deduction (deducción inmediata) under the Estímulo Fiscal provisions of the LISR — this election must be documented and disclosed in the annual ISR return. Once an immediate deduction is elected for an asset, the taxpayer may not subsequently switch to the standard annual depreciation method for that same asset.

The notice is also needed when: an asset is retired, sold, or destroyed before the end of its depreciable life, triggering a gain or loss calculation under Artículo 18 LISR; assets are contributed in kind (aportación en especie) to a company as part of a capital subscription, establishing the MOI for the receiving entity; assets are transferred in a tax-free restructuring under Artículo 24 LISR, requiring carryover MOI documentation; or the taxpayer participates in an investment trust (fideicomiso de inversión) where asset deductions must be allocated among fideicomisarios.

For construction projects under Artículo 36 LISR, the deduction begins only when the asset is placed in service (puesto en servicio) — the Aviso documents the completion date and commencement of depreciation, which must match the Acta de Entrega-Recepción de Obra or equivalent completion certificate. Pre-operating expenditures (gastos preoperativos) under Artículo 33 LISR — costs incurred before commercial operations commence, such as market research, prototype development, and regulatory approvals — are amortised at 10% annually, and the date commercial operations begin determines when amortisation starts. Additionally, taxpayers subject to the mandatory fiscal dictamen under Artículo 32-A CFF must include a complete, auditor-verified activos fijos schedule as part of their annual tax opinion, making the Aviso de Deducción de Inversiones an essential input to the contador público certificado's (CPC) review process and a prerequisite for timely filing of the dictamen with the SAT.

What to Include in Your Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones)

A valid Aviso de Deducción de Inversiones Mexico under LISR Articles 36–37 and Artículo 28 CFF must contain the following elements to support ISR deductions and withstand SAT audit scrutiny.

Taxpayer and Period Identification: Full legal name or denominación social, RFC (Registro Federal de Contribuyentes), and the fiscal year (ejercicio fiscal) to which the notice corresponds. For personas morales, the fiscal year is generally the calendar year (enero–diciembre) unless the SAT has authorised a different fiscal year-end under Artículo 11 LISR.

Asset Schedule: A complete listing of all investments subject to deduction, organised by asset category (activos fijos — tangible assets; gastos diferidos — intangible assets; gastos preoperativos — pre-operating expenditures; mejoras a activos arrendados — leasehold improvements). For each asset: description of the asset and its use in the taxpayer's taxable activity; acquisition date (fecha de adquisición); date placed in service (fecha de inicio de uso); Monto Original de la Inversión (MOI) calculated per Artículo 31 LISR, including purchase price, installation costs, and taxes paid (except IVA where the taxpayer is entitled to the IVA credit under LIVA); applicable maximum annual depreciation percentage under Artículo 35 or 40 LISR; depreciation method (the LISR uses straight-line — línea recta — exclusively); annual depreciation amount; accumulated depreciation as of beginning of year; and net book value (valor fiscal neto) at year end.

Inflation Adjustment: Under Artículo 37 LISR, the MOI must be updated for inflation using the INPC (Índice Nacional de Precios al Consumidor) factor from the month of acquisition to the month of the last update, using the INPC published by the Instituto Nacional de Estadística y Geografía (INEGI). The inflation-adjusted MOI (MOI actualizado) is the base for calculating the deductible depreciation.

Immediate Deduction Election: Where the taxpayer elects the immediate deduction under the applicable Estímulo Fiscal provisions, this section must identify: the specific legal basis for the election; the applicable deduction percentage for the asset category; the MOI subject to immediate deduction; and the immediate deduction amount taken. Once elected, the standard depreciation method may not be applied to the same asset.

IVA Allocation: For assets used in both taxable and IVA-exempt activities, the IVA credit allocation factor (proporción de acreditamiento) under Artículo 5 LIVA must be documented. Assets used exclusively in taxable activities carry full IVA credit; assets used in mixed activities carry a proportional credit that is adjusted annually using the actual taxable/total income ratio.

Signing and Legal Responsibility: The notice must be signed by the taxpayer's legal representative (representante legal) with supporting poder notarial, and by the contador público registrado (CPC — registered public accountant) responsible for the taxpayer's fiscal dictamen (tax opinion) if the taxpayer is subject to the mandatory audit opinion under Artículo 32-A CFF (applicable to taxpayers with revenues or assets above specified thresholds). The CPC's certification provides an additional layer of reliability for the deduction schedule.

Forms-legal.com provides this Aviso de Deducción de Inversiones Mexico template to help businesses document their fixed asset deductions. Every investment deduction schedule should be reviewed by a licenciado en derecho fiscal or contador público certificado (CPC) to confirm LISR compliance, correct inflation adjustment calculations, and proper IVA allocation — errors in asset deduction calculations are among the most common findings in SAT audit visits (visitas domiciliarias) and electronic reviews (revisiones electrónicas) of Mexican businesses under Article 42 of the CFF.

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APA

Forms Legal. (2026). Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones) (Mexico) [Legal document template]. Forms Legal. https://forms-legal.com/mexico/government/tax-forms/asset-deduction-notice-mexico

MLA

"Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones) (Mexico)." Forms Legal, 2026, https://forms-legal.com/mexico/government/tax-forms/asset-deduction-notice-mexico.

BibTeX
@misc{formslegal-asset-deduction-notice-mexico,
  author       = {{Forms Legal}},
  title        = {Notice of Asset Deductions Mexico (Aviso de Deducción de Inversiones) (Mexico)},
  year         = {2026},
  howpublished = {\url{https://forms-legal.com/mexico/government/tax-forms/asset-deduction-notice-mexico}},
  note         = {Free legal document template}
}

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