Portugal SIFIDE II R&D Tax Incentive 2026
Program Overview
SIFIDE II (Sistema de Incentivos Fiscais à Investigação e Desenvolvimento Empresarial) provides one of Europe's most generous R&D tax incentives. Companies can recover up to 82.5% of their R&D investment through a combination of base and incremental tax deductions.
Tax Deduction Structure
Base rate: 32.5% tax deduction on total R&D expenses. Incremental rate: 50% deduction on R&D spend increases compared to average of previous 2 years. Incremental cap: Maximum €1.5 million deduction on incremental portion. Maximum total benefit: Up to 82.5% recovery of R&D investment (32.5% base + 50% incremental).
Eligible R&D Expenses
Salaries of researchers, engineers, and technical personnel conducting R&D. Consumables and materials used in R&D projects. Depreciation of equipment and instruments dedicated to R&D. External R&D contracts with universities or research institutions. Patent costs and intellectual property protection. Clinical trials and regulatory approval costs (for pharmaceuticals/medical devices).
Eligibility Period and Timeline
Eligible R&D expenses: Tax years starting between January 1, 2014 and December 31, 2025. Extension noted: Continued eligibility through 2026 for company R&D activities. Application: Claimed in annual corporate tax return (Modelo 22). Documentation: Maintain detailed R&D project records and expense tracking.
Calculation Example
Year 1 R&D spend: €100,000. Year 2 R&D spend: €100,000. Year 3 R&D spend: €200,000. Base deduction (Year 3): €200,000 × 32.5% = €65,000. Incremental deduction: (€200,000 - €100,000 average) × 50% = €50,000. Total Year 3 deduction: €115,000 (57.5% of €200,000 spend).
2026 Changes Note
Direct SIFIDE (company R&D) continues with strong support through 2026. Indirect SIFIDE (R&D fund investments) being phased out in 2026. Focus shifting to direct business R&D activities. Additional deductions related to company capitalization: 50% in 2024, 50% in 2025, 20% in 2026.
Strategic Advantages
Recover up to 82.5% of R&D investment. High base rate (32.5%) even without growth. Substantial incremental bonus (50% on increases). Can combine with Portugal 2030 innovation grants. Permanent regime supporting innovation. Competitive with Ireland, Netherlands for R&D tax treatment.
Contact Information
ANI (National Innovation Agency): ani.pt/en/sifide | Tax Authority (AT): portaldasfinancas.gov.pt | Email: geral@ani.pt | Phone: +351 213 821 000
Common Questions
Qualifying R&D activities under the Portugal SIFIDE II R&D Tax Incentive 2026 in Portugal generally include systematic investigative work aimed at achieving scientific or technological advancement, developing new products or processes, and resolving technical uncertainties. This encompasses activities such as developing AI algorithms, creating novel software systems, engineering new materials, and conducting experimental development. The work must go beyond routine engineering or application of existing knowledge. Companies should document their R&D projects thoroughly, including technical objectives, methodologies employed, personnel time records, and associated expenditures to substantiate their claims.
Companies typically apply by submitting project details to the relevant government agency or tax authority in Portugal, including descriptions of the R&D activities, technical challenges being addressed, project timelines, and detailed cost breakdowns. Supporting documentation should include employee timesheets, expense receipts, technical reports, and evidence that the work constitutes genuine research rather than routine development. Applications often need to be filed before or during the fiscal year in which expenses are incurred. Engaging a qualified R&D tax advisor familiar with the local regulatory framework is recommended to maximize the claim value and ensure compliance.
SIFIDE II combines a base deduction on total qualifying expenditure with an enhanced incremental rate on spending exceeding the two-year historical average. This specifically rewards enterprises expanding research activities rather than maintaining static levels. Companies executing multi-year strategies observe compounding benefits as their baseline progressively rises, creating increasingly valuable deduction volumes.
Companies submit applications to the National Innovation Agency with project descriptions, expenditure breakdowns, and technical documentation. The agency evaluates whether activities satisfy Frascati Manual definitions of experimental development, applied research, or fundamental research. Approved projects receive certification enabling deductions in corporate tax declarations. Processing typically requires three to six months, with unused deductions carried forward.
References
- SIFIDE — System of Tax Incentives for Business R&D. ANI (National Innovation Agency) (2025). View source
- Portugal Corporate Tax Credits and Incentives. PwC (2025). View source
- SIFIDE II Tax Incentive — InvestPorto. InvestPorto (2025). View source
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