ZIM vs. Research Allowance Germany: Comparison 2026

The comparison of ZIM vs. Research Allowance Germany is no academic exercise for CFOs, CTOs, and R&D leads — it determines liquidity, effective tax rate, and the financeability of entire development portfolios. Both instruments fund research and development, but they differ considerably in access, timing, evidence logic, and scalability.

ZIM vs. Research Allowance — Two Funding Programs at a Glance

What is the Central Innovation Programme for SMEs (ZIM)?

The Central Innovation Programme for SMEs (ZIM) is a funding program of the Federal Ministry for Economic Affairs and Climate Action that has supported technology-oriented SMEs with direct grants since 2008. It funds market-oriented innovation projects, feasibility studies, and network initiatives. ZIM is open to all sectors, works with pre-defined project budgets, and is suited to clearly delineated projects with a traceable start, end, and commercialization path.

According to the ZIM annual report of the BMWK, more than 60,000 projects have been funded since the program launched — evidence of its broad acceptance within the German SME sector.

What is the tax-based Research Allowance?

The Research Allowance is a tax-based funding instrument based on the Research Allowance Act (FZulG), which has been in force since January 2020. It is non-dilutive, requires no equity stake, and does not have to be repaid. In practice it runs in two stages: first a certification by the BSFZ (the certification body for the Research Allowance), then assessment by the tax office. The Growth Opportunities Act (March 2024) and the Act for a Tax-Based Immediate Investment Program (July 2025) significantly improved the terms.

Funding Requirements and Target Groups Compared

The decisive question is not whether a project _seems_ innovative, but whether it fits the logic of the respective program. ZIM assesses projects heavily ex ante. The Research Allowance examines whether R&D criteria are met and which eligible expenses were incurred in the financial year.

Who can apply for ZIM?

ZIM funding for SMEs is aimed at companies with fewer than 500 employees and annual revenue below €100 million. The decisive factors are technical risk, degree of novelty, economic commercialization, and robust project planning. Topics and sectors are open — a mechanical engineering firm with a new manufacturing process stands on equal footing with a software company developing an AI module.

Who benefits from the Research Allowance?

Tax-based research funding in Germany is in principle open to all companies of all legal forms. For SMEs under the EU definition, an increased funding rate of 35 percent has applied since March 2024 — the standard rate for large companies is 25 percent. With continuous R&D in software, biotech, mobility, or engineering, the tax-based model scales considerably better than a one-off project grant.

Sector and Topic Openness of Both Programs

Both programs are open to all sectors. Eligible activities include new algorithms, sensor technology, manufacturing processes, active-ingredient platforms, energy systems, and climate-relevant processes. Not eligible, by contrast, are:

• Routine development and pure product maintenance
• Standard integration or mere scaling of existing software
• Mandatory regulatory work without its own technical knowledge risk
• Bug fixing and UI adjustments without an experimental character

Funding Amounts and Funding Rates: Which Delivers More?

In the R&D funding comparison, what counts is not only the nominal funding amount but also the assessment base of the Research Allowance, the predictability of the payout, and the internal application burden. This is precisely where ZIM and the Research Allowance diverge.

How high is ZIM funding?

ZIM funding depends on the project type, company size, and constellation:

• Individual projects: typically 35–50% of eligible costs
• Feasibility studies: up to €100,000
• Cooperation projects: up to €380,000 per partner
• International innovation networks: up to €520,000

How high is the Research Allowance in Germany?

Since January 2026 — following the changes introduced by the Growth Opportunities Act and the Immediate Investment Program — an assessment base of up to €12 million per financial year applies. For SMEs, this yields a maximum Research Allowance of €4.2 million (35 percent). For large companies, the ceiling is €3 million (25 percent).

Since July 2025, flat-rate overheads and operating costs of in-house research can additionally be included in the assessment base. A ten-person AI startup with €420,000 in eligible wage costs thereby already achieves around €147,000 in allowance — plus the flat-rate operating-cost surcharge.

Worked Example: ZIM vs. Research Allowance at Different Personnel Costs

Assuming a ZIM grant of €120,000 for a delineated development project, the Research Allowance at the 35 percent SME rate draws level at around €345,000 in eligible personnel costs. Above this threshold, the Research Allowance scales proportionally with actual R&D expenditure.

A pragmatic funding programs comparison for Germany:

• Up to ~€345,000 in eligible personnel costs: ZIM can come out ahead in nominal terms
• Above that: the Research Allowance scales better because it ties to annual expenditure
• For continuous R&D or multiple sub-projects: the tax-based logic is usually more robust than a single grant

TRUMPF, the laser technology manufacturer from Ditzingen, uses tax-based research funding as a permanent component of its R&D financing. According to the TRUMPF Annual Report 2023/24, the company invested more than €500 million in research and development — a magnitude at which tax-based instruments are structurally superior.

Application Process, Effort, and Tax Treatment

Beyond the funding rate, the process is decisive. ZIM requires fully prepared application documents before the project starts. The Research Allowance is two-stage in process terms and can connect to existing R&D controlling structures.

Application and Administrative Effort Compared

With ZIM, the project description, work packages, cost plan, and commercialization strategy must be available in robust form early on. With the Research Allowance, the path runs through the BSFZ (certification body for the Research Allowance) and subsequently the tax office. In practice, three steps prove effective:

• Delineate and document R&D projects along the BSFZ criteria.
• Record personnel time, roles, and technical uncertainties on a monthly basis.
• After the financial year ends, apply for the allowance at the tax office with a consistent cost derivation.

Typical mistakes: declaring routine development as R&D, documenting personnel deployment only on a flat-rate basis, and failing to separate standard implementation from experimental development.

Is ZIM funding tax-free?

No. The ZIM grant is subject to income taxation — the tax treatment of the ZIM grant must always be factored into the profitability calculation. At the same time, project-related expenses remain operating expenses. What counts net is the after-tax effect within the overall financing model, not the gross grant.

> "The tax treatment of funding is underestimated by many companies." – Prof. Dr. Rainer Hüttemann, University of Bonn

Retroactive Application for the Research Allowance

A key advantage: applying for the Research Allowance retroactively is possible for financial years that are not yet time-barred — generally up to four years retroactively. Anyone who has not yet used structured R&D funding can thereby convert development expenditure already incurred into liquidity after the fact. This is particularly relevant for startups that work R&D-intensively in their early years but have not yet built up a funding structure.

Hourly Rates and Eligible Costs

How high is the hourly rate for the Research Allowance?

For own contributions by sole proprietors and co-entrepreneurs, an eligible hourly rate of €70 has applied since the Growth Opportunities Act (March 2024) (from 2026: €100, under the Immediate Investment Program) — raised from the previous €40. For corporations, the directly attributable wages of the employees assigned to the project count. Eligible roles typically include:

• Software developers and data scientists
• Laboratory staff and test engineers
• R&D project leads with a verifiable time share

Essential for recognition: a direct project connection, timely hour recording, and technical documentation of the knowledge risk.

Contract Research: Differences Between ZIM and the Research Allowance

For contract research funding, the Research Allowance has become clearly more attractive since the Growth Opportunities Act. 70 percent of the external remuneration can be entered into the assessment base. This effectively corresponds to 24.5 percent funding for SMEs (35% × 70%). ZIM can also be strong for cooperation projects, but it requires a tightly project-shaped structure and pre-defined partner roles.

BioNTech, for example, uses external research partnerships as an integral part of its R&D strategy. The BioNTech Investor Relations show that in 2023 the company invested more than €1.7 billion in R&D — a model in which the Research Allowance's contract-research rule is structurally relevant.

> "Raising the contract-research rate to 70 percent was overdue." – Dr. Susanne Johna, Federal Chamber of Tax Advisors

Decision Aid: Which Program Suits Your Company?

Decision-makers should choose less by program name and more by financing logic. The following guidance applies to SMEs under the EU definition (the standard assumption of this article):

ZIM is recommended for SMEs with clearly delineated projects

ZIM fits when an SME can describe a single innovation project cleanly, plans a clear project start, and needs the grant logic before the project begins. Typical use cases:

• Mechanical engineering and production processes
• Automotive supply and hardware-near deep-tech projects
• Initial developments with defined milestones and a commercialization path

The Research Allowance is recommended for SMEs with continuous R&D

Innovation funding for SMEs through the Research Allowance is recommended for companies with ongoing R&D, multiple teams, and recurring development cycles. It is especially attractive for software and AI, biotech, medtech, climate and energy technology, or complex engineering — wherever R&D is organized as a permanent core function.

Can ZIM and the Research Allowance be combined?

Yes — a combination is possible, but not as double funding of the same costs. In practice, the separation is made on a project or cost basis: ZIM for a tightly defined individual project, the Research Allowance for the remaining in-house research in the portfolio. Before combining, aid ceilings, cost delineation, and interactions with other grants, VC financing, and state-level programs must be examined.

The ZIM vs. Research Allowance Germany comparison rarely ends with an either-or decision. For most growing SMEs, the Research Allowance is the more scalable base instrument — ZIM complements it where a single project is clearly delineable and can be described early.