Germany introduced its first-ever R&D tax credit, the Forschungszulage, on January 1, 2020, through the Forschungszulagengesetz (FZulG). This marked a fundamental shift in German innovation policy, adding a broad-based, tax-system-delivered incentive to the country's existing portfolio of direct R&D grants and project-based funding programs. The Forschungszulage allows companies of all sizes to claim 25% of eligible R&D personnel costs, up to a maximum credit of EUR 1 million per year, directly against their tax liability or as a cash refund.
This guide provides a comprehensive overview of the Forschungszulage as of 2026, covering eligible activities, the calculation methodology, the BSFZ certification process, practical application steps, and how the credit interacts with other German incentive programs.
For information on other investment incentives, see our guide on Germany's special economic zones. For startup-specific funding programs, see our guide on German startup grants and funding.
How the Forschungszulage Works
The Forschungszulage is a volume-based R&D tax credit, meaning it applies to the total amount of eligible R&D expenditure regardless of whether the R&D project is successful. This distinguishes it from incremental R&D credits used in some other countries, which only apply to increases in R&D spending above a baseline.
Calculation
The credit is calculated as follows:
Step 1: Determine the eligible assessment base (Bemessungsgrundlage).
- For in-house R&D: 100% of eligible personnel costs (gross wages including employer social insurance contributions) for employees engaged in R&D activities
- For contract R&D: 60% of the contract value paid to third-party research contractors
Step 2: Apply the 25% credit rate to the assessment base.
Step 3: The maximum assessment base is EUR 4 million per fiscal year, resulting in a maximum credit of EUR 1 million per year.
Step 4: The credit is applied against the company's assessed income tax (Koerperschaftsteuer for corporations, Einkommensteuer for partnerships and sole proprietors) and Solidaritaetszuschlag. If the credit exceeds the tax liability, the excess is paid out as a cash refund.
Calculation Example
| Component | Amount |
|---|---|
| R&D employee gross wages (including employer social insurance) | EUR 2,000,000 |
| Contract R&D expenditure | EUR 500,000 |
| Eligible base: in-house (100% of wages) | EUR 2,000,000 |
| Eligible base: contract R&D (60% of EUR 500,000) | EUR 300,000 |
| Total assessment base | EUR 2,300,000 |
| Forschungszulage (25% of EUR 2,300,000) | EUR 575,000 |
| Company's Koerperschaftsteuer + SolZ liability | EUR 400,000 |
| Credit applied against tax | EUR 400,000 |
| Cash refund of excess credit | EUR 175,000 |
The cash refund mechanism is one of the Forschungszulage's most important features. Unlike R&D tax deductions, which only benefit profitable companies, the Forschungszulage delivers value to every company conducting eligible R&D, including startups, pre-revenue companies, and businesses in temporary loss positions. A company with zero taxable income will receive the full credit amount as a cash payment from the Finanzamt. This makes the Forschungszulage a powerful tool for early-stage technology companies that are investing heavily in product development before generating revenue.
Eligible R&D Activities
The Forschungszulage covers three categories of R&D activity, defined according to the OECD Frascati Manual (2015):
Basic Research (Grundlagenforschung)
Experimental or theoretical work undertaken primarily to acquire new knowledge of the underlying foundations of phenomena and observable facts, without any direct practical application or use in view. While basic research is eligible, it is predominantly conducted by universities and public research institutions rather than by commercial enterprises.
Applied Research (Angewandte Forschung)
Original investigation undertaken to acquire new knowledge directed primarily toward a specific practical aim or objective. Applied research is the most common category for commercial enterprises and includes activities such as developing new materials with specific performance characteristics, investigating new production processes, and creating new analytical methods or measurement techniques.
Experimental Development (Experimentelle Entwicklung)
Systematic work drawing on knowledge gained from research and practical experience, directed toward producing new materials, products, devices, processes, systems, or services, or substantially improving those already produced or installed. This is the broadest category and the one most relevant to commercial R&D.
What Does NOT Qualify
The following activities are explicitly excluded from the Forschungszulage:
- Routine software development and maintenance
- Quality control and standard testing
- Data collection for purposes other than research
- Market research and consumer surveys
- Adaptation of existing products or processes for individual customer requirements without novel technical challenge
- Production ramp-up and tooling for manufacturing
- Administrative and legal activities related to patents (though the underlying research may qualify)
- Design and aesthetic changes without technological innovation
The Novelty and Uncertainty Test
For an activity to qualify, it must involve an element of novelty (the work aims to create knowledge or capabilities that are new to the company, not necessarily new to the world) and address scientific or technological uncertainty (the outcome cannot be predicted with confidence based on existing knowledge, and the methodology for achieving the objective is not obvious).
The novelty and uncertainty criteria are where many Forschungszulage applications encounter difficulty. The BSFZ (certification body) applies these tests rigorously, and projects that describe routine engineering, incremental product improvements, or standard software development are regularly rejected. Applicants should clearly articulate what is unknown at the outset of the project, what technical challenges must be overcome, and why existing knowledge and techniques are insufficient. Describing the project in terms of specific technical objectives and the scientific or engineering uncertainties that must be resolved is far more effective than describing it in terms of business goals or market outcomes.
The BSFZ Certification Process
The Bescheinigungsstelle Forschungszulage (BSFZ) is the independent body responsible for certifying the eligibility of R&D projects for the Forschungszulage. The BSFZ is operated by a consortium comprising VDI Technologiezentrum, DLR Projekttraeger, AiF Projekt, and Forschungszentrum Juelich.
Application Steps
Step 1: Prepare the Project Description. For each R&D project, prepare a structured description covering the project objectives, the state of knowledge at the project's outset, the technical challenges and uncertainties, the planned methodology, the expected results, and the project timeline.
Step 2: Submit the BSFZ Application. Applications are submitted electronically through the BSFZ portal (www.bescheinigung-forschungszulage.de). There is no application deadline; applications can be submitted at any time during or after the fiscal year in which the R&D was conducted.
Step 3: BSFZ Review. The BSFZ reviews the application using expert panels with relevant scientific and technical expertise. The review focuses on whether the described activities meet the Frascati Manual definitions of R&D. The BSFZ may request additional information or clarification.
Step 4: Certification Decision. The BSFZ issues a certification (Bescheinigung) confirming that the described project qualifies as R&D within the meaning of the FZulG. The certification specifies the project and the eligible period but does not assess the amount of the credit.
Step 5: Claim the Credit with the Finanzamt. Using the BSFZ certification, the company submits a Forschungszulage application (Form FZ1) to its local Finanzamt along with documentation of the eligible R&D costs. The Finanzamt determines the credit amount and applies it against the tax assessment.
BSFZ Processing Times and Practical Considerations
The BSFZ aims to process applications within three months, though complex applications may take longer. The certification can be obtained retroactively for prior fiscal years (the Forschungszulage can be claimed for fiscal years from 2020 onward), allowing companies that were unaware of the credit to file retrospective claims.
| Processing Step | Typical Timeline |
|---|---|
| BSFZ application preparation | 1-4 weeks |
| BSFZ review and decision | 2-4 months |
| Finanzamt application and processing | 2-6 months |
| Credit offset or refund disbursement | With annual tax assessment |
Companies should not wait until the annual tax return to begin the Forschungszulage process. Because the BSFZ certification and the Finanzamt credit application are separate steps, early submission of the BSFZ application accelerates the overall timeline. Companies that conduct R&D continuously should establish an annual process for identifying qualifying projects, documenting R&D activities, tracking personnel time allocation, and submitting BSFZ applications in a rolling fashion rather than batching them at year-end.
Personnel Cost Documentation
Because the Forschungszulage is primarily based on personnel costs, accurate documentation of the time employees spend on eligible R&D activities is essential.
Eligible Personnel Costs
The eligible assessment base includes gross wages (Bruttolohn), employer social insurance contributions (Arbeitgeberanteile zur Sozialversicherung), and other wage-related costs that are part of the employment cost. It does not include travel expenses, material costs, depreciation of equipment, or overhead allocations.
Time Tracking Requirements
For employees who split their time between R&D and non-R&D activities, the company must maintain contemporaneous time records documenting the hours spent on eligible R&D projects. The Finanzamt may request these records during the credit assessment or in a subsequent tax audit.
Acceptable documentation methods include project time tracking systems (such as Jira, Clockify, or similar tools), monthly time allocation reports signed by the employee and project manager, and project management documentation showing task assignments and completion.
For employees who work exclusively on a single eligible R&D project, a declaration by the employer confirming 100% allocation to the project is sufficient, but the underlying project documentation must support this claim.
Interaction with Other Incentives
The Forschungszulage can generally be combined with other German incentive programs, but there are important cumulation rules to observe.
Forschungszulage and GRW Grants
The Forschungszulage cannot be applied to R&D costs that are already funded by a GRW grant or other direct public subsidy. If a portion of R&D personnel costs is covered by a GRW grant, only the unfunded portion can be included in the Forschungszulage assessment base. For details on GRW grants, see our guide on Germany's special economic zones and investment incentives.
Forschungszulage and EXIST
EXIST-funded personnel costs are public subsidies and cannot simultaneously be claimed under the Forschungszulage. However, R&D costs incurred after the EXIST funding period ends are fully eligible.
Forschungszulage and ZIM/BMBF Project Grants
Similarly, R&D costs funded by ZIM (Zentrales Innovationsprogramm Mittelstand) or BMBF (Bundesministerium fuer Bildung und Forschung) project grants cannot be included in the Forschungszulage assessment base. The unfunded co-financing portion contributed by the company remains eligible.
Group Company Rules
For affiliated companies within a group (Konzern), the EUR 4 million maximum assessment base applies to the entire group, not to each individual entity. Connected and partner enterprises (as defined by EU Commission Recommendation 2003/361/EC) must aggregate their assessment bases and share the EUR 4 million cap.
International Comparison: Germany's R&D Tax Credit in Context
Germany was one of the last major economies to introduce an R&D tax credit, joining a program that most OECD countries have operated for decades. Understanding how the Forschungszulage compares internationally helps companies with operations in multiple countries optimize their global R&D incentive strategy.
| Country | R&D Tax Credit Rate | Maximum Benefit | Refundable | Volume or Incremental |
|---|---|---|---|---|
| Germany | 25% of personnel costs | EUR 1 million/year | Yes (cash refund) | Volume-based |
| France (CIR) | 30% of R&D expenses (first EUR 100M) | No cap (30% rate, 5% above EUR 100M) | Yes (after 3 years, immediate for SMEs) | Volume-based |
| United Kingdom | 20% above-the-line credit (merged scheme) | No cap | Yes (for loss-making companies) | Volume-based |
| Netherlands (WBSO) | 32% of first EUR 350K, 16% remainder | ~EUR 14 million/year | Wage tax offset | Volume-based |
| Ireland | 25% of qualifying expenditure | No cap | Yes (partially) | Volume-based |
| United States | 20% (regular) or 14% (alternative simplified) | No cap | Limited refundability | Incremental (regular) |
Germany's Forschungszulage is more limited than the French CIR or British R&D tax credit in terms of the maximum benefit (EUR 1 million cap versus uncapped in France and the UK). However, the full cash refundability and the relatively straightforward calculation methodology make it accessible and valuable, particularly for SMEs and startups.
Common Mistakes in Forschungszulage Claims
Based on publicly available BSFZ statistics and practitioner experience, several recurring errors reduce the value or delay the processing of Forschungszulage claims:
Insufficient Project Descriptions: The most common reason for BSFZ rejections is that the project description reads like a product development specification rather than an R&D project description. The BSFZ evaluates scientific and technological novelty, not commercial innovation. Describing the project in terms of the technical uncertainties to be overcome, rather than the market problem being solved, is essential.
Failing to Separate R&D from Routine Development: Within a software development team, only activities involving genuine technical uncertainty qualify. Bug fixes, UI improvements, feature adaptations for individual customers, and standard integrations are not R&D. Companies must allocate time carefully between qualifying and non-qualifying activities.
Inaccurate Time Allocation: Claiming 100% R&D allocation for employees who also perform non-R&D tasks (project management, sales support, customer service) will not withstand a Finanzamt audit. Realistic time allocation based on contemporaneous records is essential.
Missing the Contract R&D 60% Rule: For outsourced R&D, only 60% of the contract value is included in the assessment base. Companies sometimes include the full 100% in their calculations, leading to errors in the Finanzamt application.
Ignoring Group Cap Coordination: Group companies that independently file Forschungszulage claims without coordinating risk exceeding the aggregate EUR 4 million cap, which can trigger correction assessments and interest charges.
The Forschungszulage is still a relatively young program, and both the BSFZ and the Finanzaemter are developing their assessment practices. Companies that file well-documented, clearly articulated applications contribute to building a positive track record that benefits the broader R&D community. Conversely, inflated or poorly substantiated claims may lead to increased scrutiny for future applications. Treating the Forschungszulage application with the same rigor as an R&D grant application, rather than as a routine tax compliance exercise, produces the best outcomes.
Practical Recommendations
Start Documentation Now. Even if you do not plan to file a Forschungszulage claim immediately, begin tracking R&D personnel time and maintaining project documentation. Retrospective reconstruction of time records is difficult and unreliable.
Engage an R&D Tax Specialist. The intersection of technical R&D assessment and tax law makes the Forschungszulage a specialized area. Tax advisors with specific Forschungszulage experience can help identify qualifying projects that companies might overlook and prepare BSFZ applications that clearly articulate the novelty and uncertainty criteria.
Think Broadly About Eligible Activities. Companies often underestimate their qualifying R&D. Activities such as developing new manufacturing processes, creating proprietary algorithms, designing novel materials, and building prototype systems may all qualify if they involve genuine technical uncertainty.
Plan for the Group Cap. If your company is part of a group, coordinate Forschungszulage claims across all group entities to ensure the EUR 4 million cap is allocated optimally.
For information on the tax framework in which the Forschungszulage operates, see our guides on Germany corporate tax rates and German VAT. For company formation guidance, see our guide on registering a company in Germany.
Frequently Asked Questions
What is the Forschungszulage and how much can a company claim?
The Forschungszulage is Germany's R&D tax credit, introduced by the Forschungszulagengesetz (FZulG) in January 2020. Companies can claim 25% of eligible R&D personnel costs and 60% of contract research costs, up to a maximum assessment base of EUR 4 million per year, resulting in a maximum annual credit of EUR 1 million. For affiliated groups of companies, the EUR 4 million cap applies to the entire group. The credit is applied against the company's income tax liability, and if the credit exceeds the tax liability, the excess is refunded in cash, making it effectively a cash grant for loss-making companies and startups.
What R&D activities qualify for the Forschungszulage?
Eligible activities must fall within one of three categories defined by the Frascati Manual: basic research (experimental or theoretical work to acquire new knowledge), applied research (original investigation directed toward a specific practical aim), or experimental development (systematic work to produce new or improved materials, products, processes, or services). The activities must involve an element of novelty and address scientific or technological uncertainty. Routine development, quality control, market research, and adaptation of existing products for individual customers generally do not qualify. Eligibility is assessed by the BSFZ (Bescheinigungsstelle Forschungszulage), an independent certification body.
Can startups and loss-making companies benefit from the Forschungszulage?
Yes, the Forschungszulage is specifically designed to benefit all companies regardless of profitability. If the R&D tax credit exceeds the company's tax liability, the excess amount is paid out as a cash refund when the annual tax assessment is issued. This makes the Forschungszulage particularly valuable for startups, pre-revenue companies, and businesses in investment phases that may not yet have taxable profits. The credit applies to all entity types including GmbH, UG, AG, partnerships, and sole proprietorships, with no minimum size requirement.