The situation
Licence fees paid by a Polish and a German company to a Swiss licensor
A group holds a patented coating process through its Swiss company in Zug. Its factories in Wrocław and Leipzig each pay an annual licence fee, and this year the fees roughly double. The CFO asks how much tax each factory must withhold and what it needs from Zug before the payment date.
The treaty article is short. The hours go on the procedure around it: what each country requires before the payer may apply a reduced rate, what evidence of residence and beneficial ownership it expects, which rules apply to larger related-party payments, and whether the fee is entirely a royalty or partly a payment for services.
What the research has to settle
The rules behind the answer
- Domestic law first, then the treaty
- Poland and Germany both levy withholding tax on royalties paid abroad, and the payer is liable if it withholds too little. The treaty with Switzerland can reduce the tax; the memo takes the rate from the treaty in force, not from a summary table.
- Germany relieves at source only with a certificate
- A German payer may withhold at the reduced treaty rate only if the licensor holds an exemption certificate from the Federal Central Tax Office. Without it, the payer withholds the full domestic tax and the licensor claims a refund.
- Poland asks for due care
- A Polish payer applying a treaty rate needs a certificate of the licensor’s residence and must exercise due care in checking the conditions, including beneficial ownership. Separate rules apply to larger payments to related parties above an annual amount; the research confirms whether this year’s fee falls within them.
- Check what the payment is for
- A fee that covers training or technical support as well as the right to use the patent may need splitting. Payments for services and for the use of intellectual property can be treated differently under domestic law and under the treaty.
How it runs in azta
From the question to the document
The question, as you would type it
Polish and German subsidiaries pay annual patent licence fees to their Swiss sister company in Zug, about €1.4m and €900k this year. What withholding applies in each country, what do the treaties with Switzerland allow, and what must each payer hold before paying?
You start with
Licence fees paid by a Polish and a German company to a Swiss licensor
- 01
Set out the payments
Describe the licence, the payers, the amounts and the relationship to Zug. azta searches the Polish and German income tax acts, the treaties and the procedure rules.
Cited research· Free - 02
Read the treaty article and the domestic rule
Open each cited provision in the reader, in the original language with its in-force status, so the rate in the memo comes from the text.
Atlas statute reader - 03
Check the procedure in each country
Ask what each payer must hold before payment and what happens if it does not. azta cites the certificate, documentation and due-care rules for Poland and Germany.
Cited research· Free - 04
Write the memo
Ask for a memo with one section per payer and a document checklist for Zug. Edit it in Canvas and export it to Word.
Canvas · Ask azta· Pro You send
A memo on domestic withholding, treaty relief and the documents each payer needs
What you get
A memo on domestic withholding, treaty relief and the documents each payer needs
Memo · draft
Licence fees to Zug: withholding tax in Poland and Germany
Germany. The Leipzig company must withhold German tax on the licence fee unless the Zug company presents an exemption certificate from the Federal Central Tax Office before payment. We recommend that Zug applies now. If the certificate is not in place on the payment date, the full domestic tax is withheld and Zug claims the difference back.
Poland. The Wrocław company may apply the treaty rate if it holds a current certificate of Swiss residence and has checked, with due care, that the Zug company is the beneficial owner of the fees. Given the size of this year’s payment, we have also checked whether the rules for larger related-party payments apply: see section 3.
Scope of the fee. The agreement covers the patent licence and on-site training by Zug engineers. We recommend that the invoice separates the two, as the training element may be treated as a service rather than a royalty.
Outcomes on your numbers
What azta is worth on this task
Pro pays for itself after
10 minutes a month
At €170 an hour, that is all the time Pro (€27 a month) has to take off your desk to cover its price.
Example figures. Replace them with your own.
- Hours back a year
- 32
- Capacity at your rate
- €5,508
- More withholding tax memos a quarter
- 1.5
- Return on Pro
- 17×
- Research
- Drafting
- Your review
A scenario you set, not a promise. The hours that come back go to another client, or deeper into this one.
Want these numbers on your team’s real workload?
Book a demoSources azta searches here
- Dziennik Ustaw
- Gesetze im Internet
- Fedlex
- EUR-Lex · Curia
What stays with you
- Establishing beneficial ownership and substance in Zug from the facts.
- Obtaining the certificates and keeping them on file.
- The withholding position and the sign-off.
Frequently asked questions
- Does the EU agreement with Switzerland matter here?
- It can. Switzerland’s agreement with the EU contains an exemption for royalties between associated companies, with its own holding and period conditions. Ask azta to check it alongside the treaty.
- Can azta read the licence agreement?
- Yes. Upload it and azta refers back to the clauses it relied on, such as the scope of the licence and any services included.
- Does azta calculate the tax to withhold?
- No. It researches and cites the rules and drafts the memo. The calculation and the payment stay with the payer.



