The first visible threshold for establishing a recognized corporate research institute in South Korea is the number of dedicated researchers.
A small enterprise within its first three years can begin with two qualified researchers, while the ordinary minimum rises to three for a small enterprise, five for a medium enterprise under Korean SME rules, seven for a mid-sized enterprise, and ten for another enterprise.
A dedicated R&D department can use a one-person route, but that route should not be assumed to receive every form of support available to a corporate research institute.
Headcount alone does not answer whether the project creates value.
The business also needs to budget added salary, employer on-cost, independent research space, equipment, internal preparation, and recurring compliance work.
It then needs to distinguish a potential research and human-resources development tax credit from the smaller amount that can actually reduce current-year tax after tax liability, minimum tax, and other reliefs are considered.
This calculator joins those questions in one Korea-specific model.
It compares current and planned qualified researchers with the statutory minimum, gates recognition-linked benefits behind a qualification, dedicated-duty, and facility self-check, and calculates the current-year general R&D credit under Article 10 of the Restriction of Special Taxation Act.
Separately verified benefits can then be compared with incremental cost through net present value, ROI, a benefit-cost ratio, simple payback, and an annual break-even target.
From February 1, 2026, the direct recognition framework is the Act on Support for Research and Development of Corporate Research Institutes and its subordinate legislation.
Older guidance may still identify the former Basic Research Promotion and Technology Development Support Act, so the law in force on the filing date matters.
The official legal, Korea Industrial Technology Association, and National Tax Service sources used here were checked on August 8, 2026.