Rekenbox · 2026
Investment deduction calculator: KIA 2026
Small-scale investment deduction for 2026.- Qualifying investments
- €15,000.00
Assumptions, sources and version
2026 · nl-2026.1 · v2026.1
- KIA only for qualifying assets costing at least €450 each. Excludes EIA/MIA, disposals and partnerships.
- Belastingdienst — KIA 2026 (2026-09-04)
- Belastingdienst — inkomstenbelasting 2026 (2026-09-04)
Complete PDF report for your records · €19
Report for your records
Turn this into a complete PDF report.
Useful for your accountant, bank, client or own records: your result with all supporting details in one document.
- Result with the full calculation
- Assumptions and sources, so others can verify it
- Your inputs and calculation version recorded
The same calculation as above, fully documented. View the free preview first; you only pay when you want to download the report. See pricing
For the preview, we store your inputs encrypted on our server: 30 days without an account, or until you delete it once linked to your email.
Save on this device for free
Understand your result
How this tool works
KIA is a deduction from profit, not a direct cash refund. The tool uses the total qualifying investment for the year. First determine which assets qualify.
Common questions
Does this cover a vof or partnership?
The tool does not calculate allocations within a partnership. Selecting that option produces a notice instead of a misleadingly precise result.
Are EIA and MIA included?
No. This page calculates KIA only. Other investment schemes, disposals and interactions require a separate assessment.
Which details do you need?
- Total qualifying investments
- Partnership (vof/maatschap)
Limits of this tool
- KIA only for qualifying assets costing at least €450 each. Excludes EIA/MIA, disposals and partnerships.
Year: 2026 · Version 2026.1
Sources for this tool
- Belastingdienst — KIA 2026 · calculation source checked 2026-09-04
- Belastingdienst — inkomstenbelasting 2026 · calculation source checked 2026-09-04
Prepared by the Rekenbox product team at Winstwaker. The listed source references and calculation version make the method traceable. Report a content error Last updated: 2026-09-04. Rekenbox is a product by Winstwaker. The tool applies a calculation model to your inputs; a result or paid report is not a personal assessment by an adviser.