IP Box Tax Relief for Sole Proprietorship (JDG) in Poland 2026
IP Box tax relief for sole proprietorship (JDG) in Poland 2026. 5% tax on copyright income, qualifying rights, how to use it. Guide.
The IP Box relief is one of the most powerful tax tools for creators, programmers, and engineers. It allows you to tax income from copyright at a rate of 5% instead of 12–19%.
In this guide, I explain how the IP Box relief works for a sole proprietorship (JDG) in 2026.
IP Box relief — 5% tax on IP income
The IP Box relief (Polish Deal) lets you tax income from qualified intellectual property rights at 5% instead of 19% (flat tax) or 12–14% (lump sum). Key: inventions, software, and patents you created yourself.
IP Box rate
Qualified intellectual property rights
Nexus ratio
To benefit from 5%, you must calculate the Nexus ratio — the proportion of your own R&D costs to total costs of creating the IP.
Nexus = (Own R&D costs + Outsourced R&D) / Total costsThe higher the share of your own R&D costs, the higher the Nexus ratio and the larger the portion of income taxed at 5%.
IP Box 5% vs Flat tax 19% vs Lump sum 8.5%
Example: IP income of 100,000 zł.
Important: The IP Box relief requires keeping a detailed separate register (the IP Box Register) — separately for each qualified right. You must also meet the R&D activity condition. Furthermore, the rights must be created, developed, or improved by the taxpayer.
Do you create software or patents? Check if IP Box is for you!
Let's analyze →IP Box relief: Art. 30ca of the PIT Act (introduced by the Polish Deal). 5% rate: Art. 30ca(1). Qualified IP rights: Art. 30ca(7). Nexus ratio: Art. 30ca(9). Separate register: Art. 30ca(12). Flat tax: Art. 30c. Lump-sum rates: MF regulation. Not legal advice.
What is the IP Box relief?
The IP Box (Intellectual Property Box) relief allows you to tax income from qualifying intellectual property rights at a rate of 5%. This is instead of:
- 12% on the tax scale (progressive)
- 19% on flat tax
- 8.5–17% on lump-sum tax (ryczałt)
Who is it for?
The relief is available to creators who:
- Create qualifying intellectual property rights (software, patents, designs)
- Conduct research and development (R&D) — independently or by outsourcing
- Maintain records describing the creation process
Qualifying intellectual property rights
What qualifies?
- Computer programs (software, applications)
- Patents
- Industrial designs
- Utility models
- Plant protection
- Medicinal and veterinary products
What does NOT qualify?
- Standard IT services (you did not create a copyright)
- Marketing content (articles, advertising graphics)
- Standard website design (if you don't create original code)
- Logos, brands
Key distinction: software vs IT services
- Programmer creating original code → qualifies
- Server administrator → does not qualify (no creative work)
- IT consultant → does not qualify (no code)
How does the IP Box relief work?
Step 1: You create a qualifying intellectual property right
You create a computer program, patent, or industrial design.
Step 2: You maintain R&D records
You must keep detailed records of:
- What you are creating (project description)
- What costs you incur (labor, materials, tools)
- When the intellectual property right was created
- What revenue it generates
Step 3: You calculate the nexus ratio
The nexus ratio determines what portion of income comes from your R&D costs:
Formula:
Nexus ratio = (own R&D costs) / (own R&D costs + outsourced R&D costs)
If you bear 100% of R&D costs yourself → ratio = 100% → all income at 5%.
Step 4: You tax at 5%
Income from qualifying rights × nexus ratio × 5% = IP Box tax.
IP Box vs lump-sum tax vs flat tax
| Aspect | IP Box | Lump-sum 8.5% | Flat tax 19% | |--------|--------|---------------|--------------| | Rate | 5% of income | 8.5% of revenue | 19% of income | | Tax-free allowance | None | None | None | | Costs | YES (deductible) | NO | YES | | Health contribution | 9% of income | per lump-sum thresholds | 9% of income | | PIT form | PIT-36L | PIT-28 | PIT-36L |
Example: programmer creating software
- Revenue: 300,000 zł
- R&D costs: 50,000 zł
- Income: 250,000 zł
- Nexus ratio: 100% (independent)
- IP Box: 250,000 × 5% = 12,500 zł
- Flat tax: 250,000 × 19% = 47,500 zł
- Lump-sum 12%: 300,000 × 12% = 36,000 zł
IP Box saves 24,000 zł!
Formal requirements
R&D records
You must maintain detailed documentation:
- Project description — what you create, what problems it solves
- R&D costs — labor (your time), equipment, tools
- Work register — dates, stages, results
- Proof of IP creation — source code, technical documentation
Tax Office ruling
Recommended: apply to the Tax Office for a confirmatory ruling on your right to IP Box. This protects you from later challenges.
IP Box and lump-sum tax — can they be combined?
No. If you choose IP Box, you must be on:
- Tax scale (PIT-36) or
- Flat tax (PIT-36L)
You cannot be on lump-sum tax (PIT-28) at the same time. But you can have different income sources — lump-sum for services, flat tax for IP Box.
FAQ
Can every programmer use IP Box?
No. You must create original code (software), maintain R&D records, and calculate the nexus ratio. Administrators and consultants do not qualify.
Is IP Box available on lump-sum tax?
No. IP Box requires tax scale or flat tax (PIT-36 or PIT-36L). You cannot use IP Box on lump-sum tax.
Can I switch from lump-sum tax to IP Box mid-year?
No. You choose your taxation form by January 20. IP Box requires flat tax or tax scale — changes only at the start of a new year.
Does the IP Box relief require a Tax Office ruling?
It's not mandatory but recommended. A ruling protects against challenges from the Tax Office.
Need help?
I provide accounting with IP Box relief — R&D records, nexus ratio, PIT-36L. From 149 zł + VAT per month.
Reply to [email protected] or visit oxyok.com/pl.
Note: IP Box relief: 5% on income from intellectual property rights. Requires R&D records, tax scale or flat tax (not lump-sum). Consult an accountant before using it.
Questions about accounting?
I run accounting for sole proprietors from 49 zł + VAT per month.
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