Es Irpf Deductions

Spain IRPF Regional Deductions (Deducciones Autonómicas) Skill v1.0

General reference only. This skill is general tax/accounting reference material for AI-assisted workflows. It has not been reviewed for any specific person's facts, documents, elections, deadlines, residency, filing status, or local procedures. Do not rely on it to file, pay, amend, or take a tax position without review by a qualified professional in the relevant jurisdiction.

Based on work by Nambu89 (Impuestify) and Pau March (larenta), licensed under MIT. Adapted for the OpenAccountants format.

Section 1 -- Quick Reference

Section 2 -- How Regional Deductions Work

The Dual Structure of Spanish IRPF

Spanish IRPF is split 50/50 between the State (cuota estatal) and the Autonomous Community (cuota autonómica). The state portion is fixed nationwide; the regional portion is where each CCAA can:

1. Modify the regional tax brackets (escala autonómica)
2. Create regional deductions (deducciones autonómicas) that reduce the cuota autonómica

Regional deductions apply AFTER computing the cuota íntegra autonómica. They reduce the tax owed to the regional government. They do NOT reduce the state portion.

Key Principles

• Deductions are claimed on Modelo 100 (annual IRPF return), in the autonomous community section
• Each deduction has a specific AEAT casilla (box number)
• Most deductions have income limits (base imponible general + base imponible del ahorro)
• Joint filing (tributación conjunta) may double some limits
• Deductions cannot generate a negative cuota autonómica (floor = 0)

Section 3 -- Deductions by Territory: Common Territory (Territorio Común)

3.1 Andalucía (15 deductions)

3.2 Aragón (21 deductions)

3.3 Asturias (Principado de Asturias) (27 deductions)

3.4 Islas Baleares (Illes Balears) (25 deductions)

3.5 Canarias (27 deductions)

Note: Canarias also has specific indirect tax benefits (IGIC instead of IVA) and the RIC (Reserva para Inversiones en Canarias) which affects corporate tax. These are NOT IRPF deductions.

3.6 Cantabria (18 deductions)

3.7 Castilla y León (22 deductions)

3.8 Castilla-La Mancha (25 deductions)

3.9 Cataluña (Catalunya) (10 deductions)

Note: Cataluña has fewer deductions but applies modified regional brackets that can result in a higher overall rate for high earners.

3.10 Comunidad Valenciana (44 deductions -- most of any CCAA)

3.11 Extremadura (13 deductions)

3.12 Galicia (21 deductions)

3.13 La Rioja (23 deductions)

3.14 Comunidad de Madrid (26 deductions)

Madrid typical income limits for housing deductions:

• Base imponible general + ahorro < EUR 25,620 (individual) / EUR 36,200 (joint)

3.15 Región de Murcia (22 deductions)

Section 4 -- Foral Territories

4.1 País Vasco (Álava, Bizkaia, Gipuzkoa)

The three Basque provinces have their OWN IRPF system entirely separate from the common territory. They set their own:

• Tax brackets (generally lower than common territory for low-to-mid incomes)
• Deductions (different catalogue)
• Minimum exemptions

Key differences from common territory:

• IRPF brackets: 7 progressive brackets from 23% to 49% (2025)
• Mínimo personal exento: EUR 5,472
• No split state/regional -- single scale
• Own deductions catalogue not covered by AEAT XSD

Regime classifier: If the taxpayer's fiscal residence is in País Vasco, use foral basque rules. Do NOT apply common territory deductions.

4.2 Navarra (Comunidad Foral de Navarra)

Navarra has its own complete IRPF system:

• 11 progressive brackets from 13% to 52.8%
• Mínimo personal: ~EUR 5,500
• Own deductions set
• Filed with Hacienda Foral de Navarra, NOT AEAT

Regime classifier: If fiscal residence is Navarra, use foral navarra rules exclusively.

4.3 Ceuta and Melilla

Ceuta and Melilla are NOT autonomous communities but autonomous cities. They use the common territory IRPF scale but benefit from:

• 60% deduction on cuota íntegra (Art. 68.4 LIRPF) for income generated there
• 50% bonificación on cuota autónomos for specific sectors (Agriculture, Industry, Commerce, Tourism)
• This effectively means total IRPF rates are ~40% of what common territory taxpayers pay

Section 5 -- Deduction Categories Explained

Section 6 -- How to Apply Regional Deductions (Computation)

Step-by-Step Process

1. Identify the taxpayer's Comunidad Autónoma of fiscal residence (where they lived on 31 December of the tax year)
2. Compute the cuota íntegra autonómica using that CCAA's regional brackets
3. Apply mínimo personal y familiar at the regional rate to get cuota líquida autonómica
4. Sum all applicable regional deductions for which the taxpayer qualifies
5. Cap: Total deductions cannot exceed the cuota líquida autonómica (floor = 0)
6. Result: Cuota diferencial autonómica = cuota líquida autonómica - deducciones autonómicas

Common Eligibility Requirements

Most deductions require:

• Income limit: Base imponible general + base imponible del ahorro below a threshold (varies by CCAA, typically EUR 25,000-30,000 individual, EUR 36,000-50,000 joint)
• Residency: Fiscal residence in the CCAA during the full tax year
• Documentation: Supporting invoices, certificates, or official documents
• Non-duplication: Cannot apply overlapping state and regional deductions for the same expense

Section 7 -- Conservative Defaults

Section 8 -- Worked Example: Madrid Taxpayer

Input: María, 32, single, one child born 2025, rents apartment EUR 800/month. Base imponible EUR 22,000. Fiscal residence: Madrid.

Applicable Madrid deductions:

1. Por nacimiento de hijos: EUR 600
2. Arrendamiento vivienda habitual (under 35): 30% × EUR 9,600 annual rent = EUR 2,880, capped at EUR 1,000
3. Total deductions: EUR 600 + EUR 1,000 = EUR 1,600

Result: María's cuota autonómica is reduced by EUR 1,600.

Section 9 -- Casilla Reference (AEAT Modelo 100)

Regional deductions are declared in casillas 0850-1200+ of the AEAT Modelo 100 form. Each CCAA has assigned casilla ranges. Key ranges:

Section 10 -- Interaction with State Deductions

Some deductions exist at BOTH state and regional level:

• Maternidad (maternity): State deduction EUR 1,200/year + some CCAA add regional top-up
• Familia numerosa: State deduction + some CCAA add extra
• Donativos: State deduction (Ley 49/2002) + CCAA-specific donation deductions
• Vivienda habitual pre-2013: State transitional deduction + CCAA may maintain their own

Rule: State and regional deductions for the SAME concept may coexist (they reduce different portions of the tax). However, the same expense cannot generate deductions at BOTH levels if the law explicitly prohibits it.

PROHIBITIONS

• NEVER apply regional deductions without confirming the Comunidad Autónoma of fiscal residence
• NEVER apply common territory deductions to a foral (País Vasco / Navarra) taxpayer
• NEVER exceed the cuota líquida autonómica (deductions cannot create a refund from the regional portion alone)
• NEVER assume income limits are met -- verify base imponible first
• NEVER confuse the 60% Ceuta/Melilla deduction (state-level, Art. 68.4) with regional deductions
• NEVER apply 2024 deduction amounts to 2025 filings without checking for updates (rates change annually)
• NEVER claim a deduction without proper documentation (facturas, certificates, padron)
• NEVER apply Madrid deductions to a taxpayer whose fiscal residence is in another CCAA

Disclaimer

This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as an asesor fiscal or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

The deduction catalogue changes annually. CCAA legislatures modify amounts, add new deductions, and remove others each fiscal year. Always verify against the current year's published BOE/BOJA/DOGC/DOGV/etc.

The most up-to-date, verified version of this skill is maintained at openaccountants.com. Log in to access the latest version, request a professional review from a licensed accountant, and track updates as tax law changes.

Source: OpenAccountants — open tax Guides for AI, reviewed by named CPAs/CAs/EAs. Quality: source-cited draft. For always-current figures and named-accountant backing, connect the OpenAccountants MCP server (openaccountants-mcp).