Application Process 2026

Apply for the R&D Tax Credit – Step by Step to Success

From project analysis to payout: Secure up to €4.2M in R&D tax funding.

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Why File a Professional Application?

The R&D tax credit (FZulG) is one of the most attractive tax incentives for research-active companies in Germany. However, the application process is two-staged and complex: First, you must obtain a certificate from the BSFZ (Bescheinigungsstelle Forschungszulage) before you can apply for the R&D tax credit at the tax office.

This dual process presents numerous potential pitfalls. Our experience shows: approximately 70% of all self-filed applications contain formal or substantive deficiencies that can lead to delays, reductions, or even complete rejection. Typical problems include imprecise project descriptions, incorrect cost calculations, or insufficient distinction between R&D activities and routine work.

Why professional guidance is crucial: An experienced consultant knows the BSFZ evaluation criteria in detail, formulates your projects in BSFZ-compliant language, and maximizes the eligible assessment base. The result: higher funding, faster processing, and no risk of avoidable rejection.

NOVARIS Consulting guides you as a specialized full-service partner through the entire process – from the initial analysis of your R&D projects to the successful payout. Our fee is purely success-based: No success – no fee. NOVARIS is the most affordable provider on the market – and the only one with a 100% success rate in R&D tax credit applications.

Important: Incorrect or manipulated time tracking can be classified by the tax office as tax fraud – with criminal consequences, fines, and back payments with interest. Professional support with documentation protects you from this risk.

Applying for the R&D Tax Credit: The 5 Steps to Success

The application process for the R&D tax credit follows a clearly defined procedure. Click on a step to see the details.

The first and most important step: Verify whether your research and development projects meet the criteria under §2 FZulG The law distinguishes three eligible categories of R&D activities:

  • 1. Basic research: Experimental or theoretical work aimed at acquiring new knowledge without direct commercial application. This includes, for example, research into new materials, physical phenomena, or biological processes.
  • 2. Industrial research: Planned research to acquire new knowledge with the goal of developing new products, processes, or services, or substantially improving existing ones.
  • 3. Experimental development: The acquisition, combination, and use of existing knowledge for the planning of new or improved products, processes, or services. This also includes prototyping, testing, and pilot projects.
Common misconception: Many companies believe that only “groundbreaking innovations” are eligible. In reality, it is sufficient if a project involves technical uncertainties and pursues a systematic approach to solving them. Even the further development of existing products can be eligible, provided it goes beyond mere routine modifications.

Use our free calculator to get an initial estimate of your funding potential. For a detailed assessment, we recommend our free initial consultation, where we analyze your projects in detail and determine the maximum funding potential.

The project documentation is the centerpiece of your BSFZ application. A precise, well-structured description significantly increases the probability of success and accelerates processing. The BSFZ requires a detailed presentation for each R&D project, containing the following elements:

  • Project objectives and description: What is to be achieved? What problem is being solved?
  • Technical novelty: What is the state of the art? What constitutes the innovative approach?
  • Technical uncertainties: What challenges exist? Why is the solution non-trivial?
  • Methodology and approach: Systematic approach and planned work steps.
  • Timeline and personnel: Start date, end date, and human resources for the project.
Common documentation mistake: Many companies describe their projects too results-oriented (“We developed product X”) instead of highlighting the research process and associated uncertainties. The BSFZ does not evaluate the outcome but whether the path to it constitutes a systematic R&D activity.

Professional documentation takes the BSFZ's internal evaluation criteria into account and ensures that the R&D quality of your projects is presented clearly and convincingly. At NOVARIS, experienced R&D consultants prepare your project descriptions – in close coordination with your technical specialists.

After completing the project documentation, the application is submitted to the Bescheinigungsstelle Forschungszulage (BSFZ) The BSFZ is an institution of the Federal Ministry of Education and Research and reviews whether the submitted projects meet the R&D criteria.

How the submission works: The application is submitted electronically via the elster.de portal. You need an ELSTER registration for this (most companies already have one for tax filings). In the portal, you fill out the official BSFZ application form and upload the project documentation.

Processing time: The BSFZ typically requires 2 to 4 months for the review. In some cases, processing may take longer, particularly for complex projects or during high application volumes.

BSFZ follow-up questions: It is common for the BSFZ to request additional information or ask follow-up questions about specific projects. These questions must be answered promptly and precisely. A late or inadequate response can lead to rejection of the application. In case of a full rejection, it is possible to file an objection and resubmit the application with improved argumentation.

NOVARIS advantage: We proactively prepare for BSFZ follow-up questions and handle them within the shortest possible time. This avoids unnecessary delays and significantly increases the success rate.

After receiving the positive BSFZ certificate, you apply for the R&D tax credit at your local tax office. For this purpose, you use the Annex FZ (Forschungszulage), which you submit with your annual tax return or separately in advance.

Required documents for the tax office:

  • The BSFZ certificate for all eligible projects
  • The calculation of eligible expenditures (assessment base)
  • The completed Annex FZ to the tax return

Calculating the assessment base: The eligible expenditures primarily include the personnel costs of employees involved in R&D projects. The R&D proportion of their working time is taken into account. For contract research to external contractors, 70% of the paid fee is recognized as assessment base. From 2026, an additional overhead allowance of 20% can be applied to personnel costs. The maximum assessment base is EUR 12 million per fiscal year.

SME vs. large enterprise: Since the FZulG amendment, small and medium-sized enterprises (SMEs) receive an increased funding rate of 35% on the assessment base, while large enterprises receive 25%. For SMEs, this means a maximum R&D tax credit of up to EUR 4.2 million per year.

The R&D tax credit is factored into the tax assessment. This means: The amount is first offset against your tax liability. If the R&D tax credit exceeds your tax liability, the surplus is paid out directly to you – a so-called negative tax. This feature makes the R&D tax credit attractive even for companies with little or no current profits, such as start-ups or companies in a growth phase.

Timeline to payout: After filing the Annex FZ and all documents with the tax office, processing occurs within the regular assessment procedure. It typically takes 2 to 6 months after the tax assessment until the R&D tax credit is paid out or offset.

If the tax assessment is incorrect: If the tax office does not correctly account for the R&D tax credit or reduces the assessment base, you can file an objection within one month. NOVARIS supports you in this case as well and ensures that your claims are fully enforced.

The 7 Most Common Application Mistakes

Avoid these typical pitfalls that repeatedly lead to delays, reductions, or rejections. Click on a mistake to learn more.

General formulations like “product improvement” or “optimization” are insufficient. The BSFZ expects specific technical details, measurable objectives, and a comprehensible research approach.
Not every development activity automatically qualifies as R&D. The documentation must clearly articulate where the technical uncertainty lies and why the solution could not be achieved with existing knowledge. Routine changes, maintenance, and purely administrative tasks are not eligible.
Determining eligible personnel costs is complex. Common errors: incorrect R&D time proportion, missing social security contributions in the calculation, or not accounting for the new 20% overhead allowance.
Special rules apply when commissioning external research providers: Only 70% of costs are claimable, and the contractor must be based in the European Economic Area. Additionally, it must be clear who is the contracting party and who is the contractor for the R&D.
Retroactive applications are only possible as long as the tax assessment for the respective year is still open. Once the tax assessment becomes legally binding, a subsequent application is excluded. Therefore, act early.
The BSFZ typically sets a deadline of a few weeks for follow-up questions. If this deadline is not met, the application may be rejected without completing the substantive review. A prompt, technically sound response is crucial.
Many companies do not fully utilize their assessment base. Typically, eligible projects are overlooked, the R&D proportion of individual employees is set too low, or the overhead allowance is not considered. A professional analysis uncovers additional funding potential.
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Checklist: Documents You Need

Make sure you have assembled all required documents before beginning the application process.

Project Description

Technical details, project objectives, methodology, state of the art, and technical uncertainties.

R&D Personnel Cost Breakdown

Detailed list of all employees involved with gross salary costs and R&D time proportion.

R&D Employee Time Tracking

Evidence of actual R&D hours worked. Project-based time tracking is recommended.

Contract Research Agreements

If applicable: Contracts with external research providers in the EEA incl. invoices.

Owner Contribution Documentation

For sole proprietorships: Evidence of own R&D activity. Flat rate: EUR 100/hour.

BSFZ Certificate

The official certificate confirming your projects as eligible R&D activities.

Annex FZ to the Tax Return

The official form for the R&D tax credit application including assessment base calculation.

Typical Application Timeline

The entire process from initial analysis to payout typically takes 4 to 8 months. The largest time factor is the BSFZ review. Here is an overview of the typical timeframes.

Projektanalyse & Erstberatung 1–2 weeks
Prepare Project Documentation 2–4 weeks
BSFZ Review 2–4 Monate
Submit Tax Office Application 1–2 Wochen
Payout after Tax Assessment 2–6 months
Tip: Start the application process as early as possible – ideally in parallel with your ongoing R&D projects. This way, you can make optimal use of the BSFZ waiting time and apply for the R&D tax credit promptly with your next tax return. Through retroactive application, multiple years can also be combined in one application.

R&D Tax Credit Application: Forms and Portals

To successfully apply for the R&D tax credit, you need to be familiar with two key forms and portals: the electronic BSFZ application and the Annex FZ for the tax office. Both are mandatory and build upon each other.

The BSFZ Portal: Electronic Application

The application at the Bescheinigungsstelle Forschungszulage (BSFZ) is submitted exclusively electronically via the BSFZ Online Portal. Authentication is via the ELSTER organizational certificate – the same one you use for tax filings. The following information is required:

  • Company data: Legal form, tax number, industry code, number of employees, and annual revenue
  • Project descriptions: Detailed presentation of each R&D project including technical novelty, uncertainties, and methodology
  • Project period: Start and end dates of the respective R&D activities
  • R&D category classification: Basic research, industrial research, or experimental development according to §2 FZulG
Important: The BSFZ portal undergoes regular maintenance and may respond slowly during peak loads. Plan sufficient time for data entry and save your entries regularly as drafts. The BSFZ recommends submitting outside peak hours (mornings or late evenings).

The Annex FZ: Application at the Tax Office

After receiving your BSFZ certificate, the second step follows: the Annex FZ (Anlage Forschungszulage). This form is filed together with your corporate or income tax return at your local tax office. The Annex FZ contains:

  • BSFZ certificate number: The unique reference number of your certificate
  • Eligible expenditures: Personnel costs (gross employer spend), owner contributions, and where applicable contract research costs (70% of invoiced amounts)
  • Assessment base: The sum of all eligible expenditures (max. EUR 4M per year, or EUR 2M until 2023)
  • Claimed R&D tax credit: 25% of the assessment base (max. EUR 1M per year from 2024)
Practical note: The Annex FZ is submitted via ELSTER as part of the tax return. Typically, your tax adviser completes this form. NOVARIS provides your tax adviser with all required figures, the BSFZ certificate, and a detailed breakdown of eligible expenditures for seamless integration.

Frequently Asked Questions About the Forms

Can I submit the BSFZ application in paper form? – No, the BSFZ application must be submitted exclusively electronically via the online portal. Postal submission is not possible.

Do I need a separate ELSTER certificate for the BSFZ? – No, you can use your existing ELSTER organizational certificate that you already use for your tax filings.

What happens if I forget the Annex FZ? – Without the Annex FZ, the tax office cannot determine the R&D tax credit. However, you can submit it later as long as the tax assessment has not yet become legally binding. We recommend always filing the Annex FZ at the same time as your tax return.

Cost of the Application Process

One of the most common questions is: Is it worth hiring a consultant for the R&D tax credit? The answer depends on your internal resources and the complexity of your R&D projects.

Filing the application yourself (DIY)

In principle, you can file the R&D tax credit application yourself. Submission via the BSFZ portal and the Annex FZ are free of charge. However, you should not underestimate the internal effort:

  • Learning curve: You need to familiarize yourself with the FZulG, BSFZ evaluation criteria, and the Frascati definition of R&D (typically 20–40 hours)
  • Project documentation: Writing BSFZ-compliant project descriptions requires precise formulations and knowledge of the evaluation practice
  • Rejection risk: Without experience, the rejection or reduction rate is significantly higher – a rejection costs additional months and rework

Hire a Specialized Consultant

A specialized R&D tax credit consultant handles the entire application process – from identifying eligible projects to the BSFZ application to the tax office filing. This saves you dozens of hours of learning time and eliminates rejection risk. The key advantage: you only pay upon success.

NOVARIS model: NOVARIS Consulting works exclusively on a success-based model and is the most affordable provider on the market. There are no upfront costs, no flat fees, and no hidden charges. Our fee is only due when the R&D tax credit is actually paid out or offset against your tax liability. With a 100% success rate, we offer maximum security. The initial consultation is always free and non-binding.

Why Professional Consulting is Worth the Investment

In our practice, we regularly see that professionally guided applications result in 20–40% higher funding amounts than self-filed applications. The reasons:

  • More eligible projects identified: Many companies overlook R&D activities that would qualify – a specialist also identifies hidden R&D potential
  • Optimized assessment base: Correct capture of all personnel costs, owner contributions, and overhead costs maximizes the funding amount
  • Higher success rate: Professionally formulated applications are less frequently rejected or reduced
  • Retroactive claims: A specialist checks whether you can claim retroactively for past years – often a significant additional funding potential

With a typical R&D tax credit of EUR 50,000 to 250,000 per year, the added value of professional consulting typically far exceeds the cost – especially with a success-based model where you only pay upon successful payout.

Frequently Asked Questions About the Application

Yes, the R&D tax credit can be applied for retroactively from 01.01.2020, as long as the tax assessment for the respective year is still open. This means you may be able to receive funding for multiple past years. We recommend acting quickly, as tax returns become legally binding after the assessment period expires and retroactive applications are then no longer possible.
NOVARIS Consulting's advisory is purely success-based. There are no upfront costs, no flat fees, and no hidden charges. Our fee is only due when the R&D tax credit is actually paid out by the tax office or offset against your tax liability. No success – no fee. The initial consultation is completely free and non-binding.
Typischerweise dauert das gesamte Verfahren 4 bis 8 Monate von der Erstberatung bis zur Auszahlung. Die größte Zeitkomponente ist die Prüfung durch die BSFZ, die in der Regel 2 bis 4 Monate in Anspruch nimmt. Die Projektanalyse und Dokumentation kann parallel dazu innerhalb weniger Wochen abgeschlossen werden, sodass keine unnötigen Wartezeiten entstehen.
Yes, the R&D tax credit can generally be combined with other funding programs such as ZIM (Zentrales Innovationsprogramm Mittelstand) or KMU-innovativ. However, the anti-cumulation rule applies: The same costs may not be funded simultaneously through the R&D tax credit and another funding program. In practice, this means you can allocate different cost items to different funding programs.
Bei einer Ablehnung durch die BSFZ ist ein Widerspruch möglich. NOVARIS unterstützt Sie in diesem Fall bei der Überarbeitung der Projektbeschreibung und der Verstärkung der F&E-Argumentation. Durch unsere Erfahrung mit der BSFZ-Bewertungspraxis können wir gezielt die Punkte adressieren, die zur Ablehnung geführt haben, und den Antrag mit verbesserter Begründung erneut einreichen.
Die Forschungszulage wird in einem zweistufigen Verfahren beantragt. Im ersten Schritt stellen Sie einen elektronischen Antrag bei der BSFZ (Bescheinigungsstelle Forschungszulage), um Ihre F&E-Projekte als förderfähig bescheinigen zu lassen. Dies erfolgt über das Online-Portal der BSFZ unter bescheinigung-forschungszulage.de. Im zweiten Schritt reichen Sie die Anlage FZ zusammen mit Ihrer Körperschaft- oder Einkommensteuererklärung beim zuständigen Finanzamt ein. NOVARIS übernimmt als spezialisierter Berater beide Schritte – von der Projektanalyse bis zur Finanzamt-Einreichung.
At NOVARIS Consulting, you only pay upon success – no upfront costs, no hidden fees. As the most affordable provider on the market with a 100% success rate, you bear no financial risk. A self-filed application is technically possible but carries significant risks due to formal errors, suboptimal formulations, and a considerably higher rejection rate.
The entire application process typically takes 4 to 8 months from initial project analysis to payout. Preparing and filing the BSFZ application takes 2 to 4 weeks, while the BSFZ review itself averages 2 to 4 months. After that, the Annex FZ is filed with your next tax return. The tax office then determines the R&D tax credit as part of the tax assessment – the offset or payout follows shortly thereafter.

Further Resources

R&D Tax Credit Guide
Guide
R&D Tax Credit (FZulG) – The Complete Guide 2026
Everything about the FZulG: Requirements, funding amounts, updates, and BSFZ application.
Learn more
R&D Tax Credit Calculator
Calculator
Calculate Your R&D Tax Credit
Determine your funding potential with our interactive calculator.
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NOVARIS Consulting Team
About Us
NOVARIS Consulting
Your specialized full-service partner for the R&D tax credit.
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Sources & legal references

All statements regarding eligible base, funding rates, and application process are based exclusively on the following official legal sources and authority documents. Research date: .

Note: This page does not replace individual tax advice. For a binding assessment of your project, please contact us or your tax advisor.

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Max Nodes
Max Nodes
Managing Director & Founder of NOVARIS Consulting. Specialized in German R&D tax credits (FZulG) with a 100% approval rate. Learn more