Nyteca® Chat: your AI assistant for tax law
Like a general AI chat, but specialised in tax law: ask technical questions, upload documents and have opinions and objections drafted. Every statement with its citation – as thorough as your question demands.
- Servers in Switzerland
- FADP-compliant
- Ready without setup
The tax office disallowed CHF 4,800 of continuing-education costs. Can we challenge that?
Reading the notice and checking statute, practice and case law …
Yes. Job-related continuing-education costs are deductible, and the disallowance can be challenged with an objection.
- Deadline: 30 days from notification. If the notice was served on 2 September, it ends on 2 October.
- File the objection in writing with the assessment authority, enclosing the course certificate and proof of payment.
Citations
- DBG art. 132 para. 1
- StHG art. 48 para. 1
- DBG art. 33 para. 1 let. j
- · Version for tax period 2025
Ask a question or attach a file …
Illustration — not legal advice
From tax question to answer with citation
Where Nyteca® Chat is available
- SwitzerlandLive
Nyteca® Chat is live – for fiduciary and tax firms
Go to chat - GermanyComing soonNyteca® Chat for tax advisors
- LiechtensteinComing soonNyteca® Chat for trustees
- LuxembourgComing soonNyteca® Chat for fiduciaires and experts-comptables
Nyteca® App: The same AI functions, built into clients, cases and deadlines
Explore the Nyteca® AppServers in Switzerland. Data protection under Swiss law.
Tax questions contain client data. That is why we state clearly where Nyteca® Chat is hosted, under which law we process personal data and what the contract provides.
- Hosting in Switzerland
- Nyteca® Chat is hosted on servers in Switzerland.
- FADP-compliant
- We process personal data under the Swiss Federal Act on Data Protection (FADP). For mandates with a link to the EEA, we take the GDPR into account.
- Data processing agreement
- The personal data in your questions and uploaded documents is covered by a data processing agreement (DPA) under Art. 9 FADP, which forms part of our terms and conditions.
- Based in Baar, jurisdiction Zug
- The provider is Tax AI AG, a Swiss company. The contract is governed by Swiss law.
As thorough as the question demands
Not every question needs an opinion. You choose the level for each chat – it decides how deeply Nyteca® Chat checks, how many sources it draws on and how detailed the answer is.
Level 1
Associate
Quick and direct
Clear, short answers for day-to-day work – with the relevant citation and no detours.
Best for
- Deadlines and formalities
- Deductions, rates and flat allowances
- Quick questions in between
Level 2
Advisor
Sound and thorough
Examines statute, administrative practice and case law in full, weighs the arguments, works out the counter-arguments and sets out the options – up to the fully reasoned opinion.
Best for
- Objections and contentious cases
- Short and detailed opinions
- Complex and cross-border matters
Upload whatever is on your desk
Or simply describe the facts in the chat. Nyteca® Chat reads along, checks the figures and refers to your document in its answer.
You upload
- Assessment notices
- Tax returns
- Annual accounts
- Salary statements
- Contracts
- Letters from the tax office
Nyteca® Chat delivers
- Answer with citation
- Deadline flagged
- Draft opinion
- Draft objection
- Comparison of options
Nyteca® Chat in day-to-day practice
Three typical situations from fiduciary, tax advisory and law firms – and how Nyteca® Chat helps. You still review and sign every draft.
All use casesFiduciary firm
Review an assessment notice and draft an objection
- The situation:
- The assessment departs from the tax return as filed, and a deduction has been cut. The objection period is running, and the grounds have to hold up.
- With Nyteca® Chat:
- You upload the notice and ask whether an objection is worth it. The chat sets the correction against the legal position, states the deadline and drafts the objection with request, grounds and enclosures.
- Draft with request, grounds and enclosures
- A note on when the deadline runs out
- Every statement with its citation
- You review and sign
Tax advisory firm
A quick answer while the client is on the phone
- The situation:
- A client calls: she wants to know when her tax return is due and whether she can deduct a training course. The answer should come during the call and still be right.
- With Nyteca® Chat:
- You type the question into the chat as you talk, at the quickest level. The answer is short, gives the relevant citation and openly flags anything that cannot be evidenced.
- Short answer with citation
- Version matching the tax period
- Open points clearly flagged
- Ready without setup
Law firm
A short opinion on a tax question in a client matter
- The situation:
- A tax question comes up in a client matter, for example in the division of an estate. It sits at the edge of your practice area, yet the client expects a written assessment.
- With Nyteca® Chat:
- You describe the facts and the question. The chat produces a short opinion with facts, legal appraisal, conclusion and citations – a draft to work from.
- Structured into facts, appraisal, conclusion
- Every statement with its citation
- A draft to work from
- The responsibility stays with you
Knowledge as a Service
Behind Nyteca® Chat and the Nyteca® App sits a legal knowledge space: laws, ordinances, administrative practice and case law from five jurisdictions – structured, versioned by revision and with the source reference. Built and trained over roughly one and a half years.
From early 2027 we are opening it up as an interface: you connect your own language model and get answers that can be substantiated down to the article.
- Jurisdictions
- Switzerland, Germany, Austria, Liechtenstein, Luxembourg
- Document types
- laws, ordinances, administrative practice, decisions
- Revisions
- queryable as at any date, not just the current state
- Model
- independent – you bring your own
Ask Nyteca® Chat your next tax question
Live in Switzerland since 1 October 2026: open the chat, ask your question, get an answer with its citation. Get to know the Nyteca® App ahead of its launch in a demo.