What is the R&D Super-Deduction rate in Slovakia and how does it reduce taxes?

Slovakia's R&D Super-Deduction allows companies to deduct a significant percentage above 100% of their qualifying R&D expenditures from their tax base. This means companies effectively receive a tax benefit that exceeds the actual cost of their R&D investment. The super-deduction applies to both in-house research activities and contracted R&D performed by eligible research institutions in Slovakia.

What documentation is required to claim the R&D super-deduction in Slovakia?

To claim Slovakia's R&D super-deduction, companies must maintain a written R&D project plan prepared before the project begins, detailing objectives, timelines, and expected outcomes. They must also keep detailed records of all qualifying expenditures, personnel time allocations, and project progress reports. The tax authority may audit claims, so robust documentation linking expenses to specific R&D activities is essential.

Slovakia R&D Super-Deduction Tax Incentive 2026

Program Overview

Slovakia's R&D super-deduction tax regime, available since 2015, enables companies to deduct an additional 100% of their research and development costs from their corporate income tax (CIT) base. This generous incentive effectively allows companies to deduct 200% of qualifying R&D expenditure—the standard 100% business expense deduction plus an additional 100% super-deduction—creating powerful tax savings for innovation-driven businesses.

Tax Benefit Structure

100% Additional Deduction

The super-deduction allows companies to claim 100% above and beyond the normal business expense deduction for qualifying R&D costs. This means for every €100 spent on eligible R&D activities, companies can reduce their taxable income by €200, effectively halving the after-tax cost of conducting research and development.

Immediate Tax Period Benefit

Companies can claim the super-deduction in the respective tax period when R&D costs are incurred. This immediate benefit improves cash flow compared to programs requiring multi-year amortization or delayed credit claims.

Universal Industry Eligibility

No Industry Limitations

Unlike many jurisdictions that restrict R&D incentives to specific sectors, Slovakia's super-deduction has no industry limitation. Any company conducting qualifying R&D activities can benefit, whether in software development, manufacturing, biotechnology, agriculture, services, or any other field. The only requirement is that the project meets the definition of research and development under Slovak law.

Broad R&D Definition

Qualifying R&D activities include basic research, applied research, and experimental development. This encompasses creating new knowledge, developing new products or processes, and significantly improving existing products, processes, or services through systematic technical or scientific work.

Complementary Investment Incentives

Stackable Benefits

Companies can potentially combine the R&D super-deduction with Slovakia's broader investment incentive scheme. Investment incentives are available for projects in industrial production, technology centers, and shared service centers, provided as tax relief, cash grants, contributions for newly created jobs, and transfers of state or municipal property at discounted prices.

SARIO Support

The Slovak Investment and Trade Development Agency (SARIO) advises investors on accessing both R&D tax incentives and broader investment incentives, helping companies structure projects to maximize available support.

Additional Innovation Support

Innovation and Digital Vouchers

The Ministry of Economy offers innovation and digital vouchers that companies can use to upgrade products, services, or technology through cooperation with research and development institutions. These vouchers complement the R&D super-deduction by supporting early-stage innovation activities and partnerships with academic institutions.

Fund for Innovations and Technologies

The National Holding Fund's Fund for Innovations and Technologies invests between €20,000 and €1.5 million in startups, with focus areas including environment, sustainable energy, and information technology. This provides equity capital that complements tax incentives for high-growth technology ventures.

Eligibility Requirements

Qualifying R&D Activities

To qualify for the super-deduction, activities must meet the legal definition of research and development. This requires systematic creative work undertaken to increase knowledge and develop new applications of that knowledge. Routine product modifications, market research, and quality control typically do not qualify.

Documentation Requirements

Companies must maintain detailed documentation of R&D projects, including project objectives, technical challenges addressed, resources allocated, and results achieved. This documentation supports the tax deduction claim and provides evidence for tax authorities if requested.

Claiming the Super-Deduction

Step 1: Identify and document qualifying R&D activities conducted during the tax period.

Step 2: Calculate eligible R&D costs including personnel, materials, equipment depreciation, and contracted R&D services.

Step 3: Claim the standard 100% business expense deduction plus the additional 100% super-deduction in your corporate income tax return.

Step 4: Maintain comprehensive project documentation to support the claim if audited by tax authorities.

Key Contacts

SARIO (Slovak Investment and Trade Development Agency): https://www.sario.sk/en/invest-slovakia/investment-incentives

For detailed guidance on R&D super-deduction eligibility, documentation requirements, and claiming procedures, consult with Slovak tax advisors or contact SARIO for investor support services.

Slovakia R&D Super-Deduction Tax Incentive