R&D Tax Credit in Germany
Marvin Vocke, Co-Founder Grantonomy · Last updated: August 28, 2026
Germany's R&D tax credit is called the Forschungszulage: a statutory, profit-independent research and development incentive governed by the Research Allowance Act (FZulG). Small and medium-sized enterprises receive 35 percent of the eligible assessment base; for projects starting in 2026 or later, a flat 20 percent allowance for overhead and operating costs raises the effective funding rate to up to 42 percent of the underlying eligible costs. The process has two stages: first an R&D certificate from the certification body BSFZ, then the assessment by the tax office via ELSTER.
Key facts at a glance
The Forschungszulage is Germany's R&D tax credit: a statutory, profit-independent R&D incentive under the FZulG.
The funding rate for small and medium-sized enterprises is 35 percent of the eligible assessment base.
For projects starting in 2026 or later, a flat 20 percent allowance for overhead and operating costs raises the effective funding rate to up to 42 percent.
The process has two stages: an R&D certificate from the BSFZ, followed by the assessment at the tax office via ELSTER.
The Forschungszulage can be claimed retroactively for several years and for future years; eligible costs are primarily personnel costs and contract research.
What is the R&D tax credit in Germany?
Anyone searching internationally for an R&D tax credit will find the Forschungszulage in Germany. The Forschungszulage is a statutory, profit-independent incentive for research and development governed by the Research Allowance Act (Forschungszulagengesetz, FZulG). It performs exactly the function that R&D tax credits serve in other countries: companies receive a fixed percentage of their eligible R&D expenditure, without the funding being tied to profitability.
Profit independence is the decisive difference from purely income-tax-based instruments for many companies. Businesses in a loss phase, such as startups with high development costs or scaleups in growth mode, can also use the Forschungszulage. What matters is not the earnings situation, but whether eligible research and development work is taking place in the company.
Two institutions shape the process: the certification body for the research allowance (Bescheinigungsstelle Forschungszulage, BSFZ), which reviews the technical side of a project and issues the R&D certificate, and the tax office, which subsequently assesses the allowance via ELSTER. This clear separation between technical review and tax assessment distinguishes the Forschungszulage from classic grant programs with project-based application rounds.
For an introduction to all core concepts, the foundational article Was ist die Forschungszulage serves as the central overview of how the incentive works. This article takes the perspective of CFOs, CTOs and engineering leads who want to understand and use the Forschungszulage as Germany's R&D tax credit.
How high is the funding from 2026?
The funding rate for small and medium-sized enterprises is 35 percent of the eligible assessment base. This rate is set out in the FZulG and forms the basis of every calculation.
For projects starting in 2026 or later, a flat allowance for overhead and operating costs of 20 percent of the other eligible expenditure is added on top. This increases the assessment base, and the effective funding rises to up to 42 percent of the underlying eligible costs. The math behind it is transparent: 35 percent × 1.20 = 42 percent. Important for context: the 42 percent is not a new statutory funding rate, but the effective rate relative to the base expenditure, in particular personnel costs. Whether the overhead allowance applies must be reviewed case by case.
The following overview summarizes the key parameters:
Parameter | Rule | Context |
|---|---|---|
SME funding rate | 35 % of the assessment base | statutory rate under the FZulG |
Overhead and operating cost allowance | 20 % of the other eligible expenditure | for projects starting in 2026 or later |
Effective funding | up to 42 % | calculation 35 % × 1.20, not a statutory rate |
Process | BSFZ, then tax office via ELSTER | two stages |
Timing | retroactive and future years | to be reviewed case by case |
How these figures translate into specific project budgets and which calculation steps are typically involved is covered in more depth in Forschungszulage Höhe und Berechnung.
Which projects and costs are eligible?
First, the honest exclusion: what involves no technical uncertainty is generally not eligible. That includes routine development, plain bug fixing, ordinary customizing of existing software or the adaptation of established components using known methods. A company configuring a CRM, rebuilding a website or parameterizing a machine according to the manufacturer's manual is not conducting eligible research and development.
A project can be eligible, by contrast, when it is technically open at the outset whether and how the goal can be achieved. The decisive criterion is concrete technical uncertainty. In software development, this applies to architectures whose scaling behavior under real load cannot be predicted. In AI projects, it is typically unclear whether a model can reach the targeted accuracy on the company's own data at all, for example in ML pipelines, RAG systems or the fine-tuning of LLMs. In mechanical engineering, technical uncertainty often arises with new manufacturing processes or with components that need to operate beyond known design limits.
On the cost side, personnel costs and contract research are the primary eligible categories. For projects starting in 2026 or later, the flat 20 percent allowance for overhead and operating costs is added. Specific amounts must always be reviewed case by case, because the allocation of personnel hours to eligible activities ultimately determines the assessment base. A detailed breakdown of the cost categories is provided in the cluster article Förderfähige Kosten der Forschungszulage 2026.
How does the process via BSFZ and tax office work?
The Forschungszulage process is built in two stages. In the first stage, the company files an application with the Bescheinigungsstelle Forschungszulage, which reviews whether the project meets the criteria for research and development. The result is the R&D certificate, the technical foundation of the entire claim.
The second stage is the assessment at the tax office. The application is filed via ELSTER, the tax office reviews the claimed expenditure and assesses the Forschungszulage. The legal basis for both stages is the Forschungszulagengesetz in its original text.
A practical advantage of this structure: the Forschungszulage can be claimed retroactively for several years and for future years at the same time. Companies that have not yet claimed their R&D work can process completed development years after the fact, provided the projects are documented cleanly and structured along the funding logic. The guide Forschungszulage beantragen describes the path from project identification to filing step by step.
What should CFOs consider when applying?
The most common mistake is a purely tax-driven view of a technical subject. The BSFZ does not audit bookkeeping; it reviews the technical substance of a project: where the uncertainty lay, which solution paths were investigated, what was open at the start. Applications that describe development work only in tax and controlling language give away exactly the substance the review depends on.
The second typical mistake is underestimation. Many development teams consider their work normal product development, even though they regularly resolve technical uncertainties, for example when building a new data architecture or validating an ML model. Those who look for R&D shares only at year-end find less than actually exists; those who classify projects early and let the documentation run alongside secure the full assessment base.
"The Forschungszulage rarely fails because of the law, it fails in translation: whoever can describe the technical uncertainty of a project precisely has already understood the most important part of the application." – Marvin Vocke, Co-Founder Grantonomy
Grantonomy supports companies end-to-end, from AI-powered pre-qualification and project structuring to the BSFZ application and the documentation towards the tax office and the BSFZ. The work is 100 percent success-based, meaning fees are only due upon actual payout, and across all applications filed to date the approval rate stands at 100 percent. Neither replaces a case-by-case review, but both show that a technical rather than purely tax-driven approach works in practice.
Summary
Germany does have an R&D tax credit, it just goes by a different name: the Forschungszulage under the FZulG is a profit-independent, statutory R&D incentive with a funding rate of 35 percent for small and medium-sized enterprises. For projects starting in 2026 or later, the 20 percent overhead and operating cost allowance raises the effective funding to up to 42 percent of the underlying eligible costs. The two-stage process via BSFZ and tax office separates technical review from tax assessment, and the retroactive availability makes the R&D tax credit in Germany relevant for past development years as well. Companies that document personnel costs and contract research cleanly and describe the technical uncertainty of their projects precisely can integrate the incentive into their R&D financing in a plannable way; specific eligibility must always be reviewed case by case.
Frequently asked questions about the R&D tax credit in Germany
Does Germany have an R&D tax credit?
Yes, the German equivalent is the Forschungszulage under the Research Allowance Act (FZulG). It is a statutory, profit-independent R&D incentive claimed through a two-stage process consisting of a BSFZ certificate and an assessment at the tax office.
How high is the Forschungszulage from 2026?
The funding rate for small and medium-sized enterprises is 35 percent of the eligible assessment base. For projects starting in 2026 or later, a flat 20 percent allowance for overhead and operating costs raises the effective funding to up to 42 percent; whether the allowance applies must be reviewed case by case.
Can I claim the Forschungszulage retroactively?
Yes, the Forschungszulage can be claimed retroactively for several years and for future years. The prerequisite is that the projects meet the R&D criteria and the expenditure is documented traceably; the specific period must be reviewed case by case.
Which costs are eligible under the Forschungszulage?
Eligible costs are primarily personnel costs and contract research. For projects starting in 2026 or later, a flat allowance for overhead and operating costs of 20 percent of the other eligible expenditure is added on top.
Does my company need to be profitable to receive the Forschungszulage?
No, the Forschungszulage is profit-independent. Companies in a loss phase, such as startups or scaleups with high development costs, can also use the incentive, provided eligible research and development work is taking place.
