đź’ˇ The key facts about the Forschungszulage at a glance.

Financing Prototype Development: How Does the Forschungszulage Support Your Innovation?

Date: February 14, 2026•Author: Erich Lehmann

TL;DR – Summary

Prototypes are often the most expensive step before market entry. The Forschungszulage can cushion this phase from a tax perspective, if your prototype is functional, resolves technical uncertainties, and you document systematically. The decisive factors are clean delineation, time records, and technical evidence – this keeps the funding predictable.

  • Prototypes are eligible for funding if they are functional and resolve technical uncertainties (not: pure design, show models, or pre-series).
  • The Forschungszulage is tax-based, can be claimed retroactively, and without a competitive process – ideal for companies that develop flexibly.
  • The decisive factors are clean delineation, time records, and technical documentation (e.g. tests, iterations, results).
  • You can get support at dieforschungszulage.de – including a free initial check and structured application guidance.

Why This Article Matters

The prototype phase determines whether an innovation is technically viable – and is simultaneously often the most expensive phase before first revenues. The Forschungszulage helps to cushion exactly these innovation costs from a tax perspective, if the prototype is part of a systematic, technically demanding development process and you document it in an audit-proof way.

Many companies leave money on the table because they position prototypes too close to pre-series/market activities or fail to keep evidence sufficiently distinct.


When Does Prototype Development Count as Eligible?

From a funding logic perspective, a prototype is not a "first sample" for sales or pitching, but a functional interim state that answers technical questions.

Prototype development is typically eligible when:

  • Innovation level is present (not just standard assembly or cosmetic optimization),
  • you proceed systematically (plan → implementation → test → iteration),
  • genuine technical uncertainties exist (e.g. function, integration, scaling, performance),
  • the prototype serves knowledge gain (e.g. through tests under realistic conditions).

Important: Whether physical (component, machine) or digital (software demonstrator, algorithm, AI model) is usually secondary – what matters is technical risk and traceable development.


What Is Typically Not Eligible (and Why)?

Funding becomes problematic where knowledge gain ends and market/operational logic begins.

Typically not eligible:

  • Design studies or models without technical function
  • Pre-series production and near-series implementation
  • Series development or pure product adaptation without new technical findings
  • Marketing/sales (even if it "belongs to the project")
  • classic project management (status updates, budget, deadlines), insofar as it is not actually technical development work

Key principle: "Included in the project" does not automatically mean "eligible for funding".


Which Costs Are Often Relevant for Prototypes?

Frequently relevant cost categories (cleanly delineated and documented):

Not the focus (and often not eligible): series production, production machinery, marketing.

If you are unsure whether a cost block is more "prototype/test" or already "pre-series/market": have it checked in advance – this avoids discussions later.


How to Set Up Your Prototype Project Correctly (Short & Audit-Proof)

1) Clear Delineation in the Project Plan

Make a visible distinction between:

  • Innovation work (development, tests, iterations)
  • non-eligible portions (pre-series, rollout, marketing, general coordination)

2) Name Technical Uncertainties Specifically

  • What is technically still unresolved?
  • Why is standard knowledge insufficient?
  • Which tests/experiments will provide the answers?

3) Documentation – Lean but Robust


Why the Forschungszulage Is So Attractive for Prototypes

The Forschungszulage is particularly well suited to prototype development because it:

  • works tax-based (no competitive process),
  • can be applied for retroactively,
  • enables flexible innovation planning independently of classic calls,
  • can map iterative cycles (build–test–improve) well – if the evidence is in order.

Retroactivity & implementation:


Why Working with dieforschungszulage.de Saves Time and Risk

With prototypes, it rarely fails on the technology – it fails on delineation, terminology, and documentation. dieforschungszulage.de helps you set up the project correctly from the start in terms of funding logic:

  • Free initial check of your project
  • Structuring of work packages and innovation argumentation
  • Support with documentation, evidence, and application texts

More at dieforschungszulage.de.


Conclusion: Prototype Development + Forschungszulage = Financially Securing Innovation

Prototypes are a central step toward market-ready innovation – and a major cost driver. With the Forschungszulage, you can cushion this phase from a tax perspective, if your prototype is functional, addresses technical uncertainties, and you document systematically.

If you wish, dieforschungszulage.de can review your project in advance – so you quickly know what is realistically eligible and how to optimally structure the prototype phase.


Do you still have questions about this topic?

We are happy to discuss your specific case in a free initial consultation. We'll find out in just a few minutes how much funding your company can receive.

Call Now
Erich - Your Contact Person