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Patentbox-Calculator is provided by Keller Schneider Patent- und Markenanwälte AG in Zurich, Switzerland. It is an online tax estimation tool aimed at Swiss companies. Its primary purpose is not software development, but helping businesses with R&D spending and at least one granted patent make an initial assessment of whether setting up a Patentbox is worthwhile. The page explains that Swiss cantons have offered tax relief for eligible R&D companies since 2020, but companies must first choose a Patentbox category and confirm it with the tax authorities.
The tool lets users select a Swiss canton and enter figures such as total company revenue, profit, revenue and profit related to up to four Patentboxes, qualifying R&D costs, non-qualifying R&D costs, and Swiss R&D staff salaries. It estimates the Patentbox deduction, R&D expense deduction, maximum allowable deduction, cantonal and federal tax impact, total tax amount, and tax savings. The page also explains that a Patentbox can be established for a single patent, a single product, or a product group, making it useful for comparing options before a formal decision.
From a developer-tool perspective, it does not disclose an API, SDK, technical framework, integration ecosystem, open-source status, or self-hosting option. It is closer to a vertical-industry calculator. In terms of language, the page has DE/EN entry points, while the captured main content is in German. The documentation is relatively clear and covers calculation assumptions, cost definitions, and disclaimers, but it is not technical documentation.
The web calculator itself does not list a fee. The page mentions a one-hour personal consultation at a discounted price of CHF 200, with feedback available via email or form. The support model is more like a consultation entry point for a patent law firm than a SaaS customer support system.
Its strengths are its focused use case, inputs that closely match Swiss Patentbox rules, and the ability to estimate tax savings by canton. Its limitations are that the results are for decision support only, not precise tax calculations, and tax rates and rules may require professional review. It is suitable for Swiss SMEs, financial advisors, tax consultants, and patent managers, but not for teams looking for a general developer platform or automated interfaces.
The main content does not provide information about access from mainland China, payment, or localization, so the status is unknown. If a Chinese company is involved in tax planning for a Swiss subsidiary, it may consider engaging a local Swiss tax advisor or accounting firm, or using an internal Excel or tax-and-finance model as an alternative.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on patentboxcalculator.ch official site.
patentboxcalculator.ch is an Switzerland Legal & Tax provider. TG4G tracks its product information, an overall rating of 5.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach patentboxcalculator.ch directly.