Research and development deduction (section 30c)
The section 30c R&D deduction is a tax relief for companies that genuinely develop. The Tax Authority publishes who claimed it, how much and against which project – which makes it one of very few public indicators of innovation activity.
What the register contains
- The tax period the deduction relates to
- Amount of the deduction claimed in EUR
- Research and development project number
- Date the project started
Fields we return
| Field | Meaning |
|---|---|
| period | Tax period as published by the Tax Authority. |
| amount_eur | Amount of the deduction claimed in EUR. |
| project | Research and development project number. |
| started_at | Date the project started. |
What it is used for
For market segmentation this is a more reliable filter for technology companies than a NACE code. NACE says what a company declares itself to be; an R&D deduction says what it actually invested in.
In a sales process it works as an intent signal – a company that claimed a development deduction has a development budget and almost certainly a development team.
Frequently asked questions
Does the deduction prove the company really does R&D?
It proves it claimed a tax relief tied to a research and development project, and that the project has a number and a start date. That is considerably more concrete than a declared business activity.
Why are some records found by tax ID rather than company ID?
Some rows in the source carry only the tax number. We therefore match on both identifiers – otherwise a share of records would stay invisible.
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