🇨🇭→🇩🇪 pension fund · Withholding-tax-at-source reclaim
Takes just about 5 minutes
The AI pre-fills 7 fields from the documents — you review instead of typing.
Switzerland → Germany
Learn moreFounding price for firms that start by June 30, 2027 — the regular price applies afterwards.See pricing
Florian ZepfPartner · ZEPF TAXES, Zürich
Prefer email? Write to klaus@nclabs.ch
Prefer email? Write to klaus@nclabs.ch
The future of tax advisory — AI-enhanced, digital, efficient, trustworthy.
For firmsI advise clients — documents and answers should reach me digitally.For clientsI’m a client — my firm sent me a link.
Your choice:Germany
Not right?SwitzerlandAustria
Bring your firm into the AI era.
Nothing retyped, nobody chased. The AI reads the documents, you decide.
- 11 ready-made workflows, live on day one.
- Hosted in Germany and Switzerland — crosstax runs under your firm and your brand.
- 3×
- more clients in the same advisor time
- 90%
- fewer transfer errors
- 80%
- less time on data entry, per client
Confirmed by Florian Zepf, Zepf Taxes
Your client uploads
“Salary certificate(s)”
The AI reads
4 values out of this one document
You decide
“Employers & salary – please review”
Source: “Salary certificate(s)”
Documents by e‑mail, figures by hand?
That stops here. Your clients upload, the AI reads the documents, and you decide what counts.
- No retyping
- The AI reads the documents; company names come from Zefix and the German Handelsregister, in Switzerland the address and legal form too. Every figure it carries over names the document it came from.
- No chasing
- crosstax reminds your clients automatically — twice, then it stops.
- 4 languages
- Your clients answer the questions in German, French, Italian, and English. You translate nothing.
- Your firm
- The portal page carries your logo and your colours. crosstax stays invisible.
The workflows
Ready on day one.
9 workflows are ready, every question written out in 4 languages (German, French, Italian, and English). You write none of them.
See every workflow in detail🇨🇭→🇩🇪 dividends · Swiss withholding tax reclaim
Takes just about 5 minutes
The AI reads 4 values out of the documents — nothing gets retyped.
Switzerland → Germany
Learn more🇩🇪 Income tax return · Document collection
Takes just about 5 minutes
The AI pre-fills 5 fields from the documents — you review instead of typing.
Germany
Learn more🇨🇭 tax return · individuals
Takes just about 15 minutes
The AI pre-fills 10 fields from the documents — you review instead of typing.
Switzerland
Learn more🇩🇪 Rental & leasing · Schedule V
Takes just about 10 minutes
9 sections lead through the case — your clients answer directly, no e-mail loops.
Germany
Learn more🇩🇪 Exit Tax · § 6 AStG
Takes just about 5 minutes
The AI pre-fills 4 fields from the documents — you review instead of typing.
Germany
Learn more🇨🇭 Real-Estate Capital-Gains Tax
Takes just about 5 minutes
The AI pre-fills 3 fields from the documents — you review instead of typing.
Switzerland
Learn more🇨🇭 Transparency Register · Beneficial Owners
Takes just about 10 minutes
The AI pre-fills 2 fields from the documents — you review instead of typing.
Switzerland
Learn more🇩🇪 Inheritance tax · Pre-intake
Takes just about 20 minutes
The AI pre-fills 13 fields from the documents — you review instead of typing.
Germany
Learn moreFill time estimated from the number of questions that appear without a condition — not measured.
🇦🇹For Austria: “Employee tax assessment” is in preparation.
Not built yet — and we don’t show coverage that doesn’t exist. Talk to us: we’ll walk you through where it stands.
Talk to usAll 26 cantons — and the differences that really exist
Communes and the authority are on file for all 26 cantons, 2'110 communes in total. With the main form the equality ends — here is where:
1canton: we place the values into the official main form.
ZH
10cantons: the official main form is bundled, blank.
NW
SO
BL
SH
AI
SG
TG
VD
VS
JU
15cantons: no blank form is published — you get the ordered dossier and the direct route into the cantonal software.
BE
LU
UR
SZ
OW
GL
ZG
FR
BS
AR
GR
AG
TI
NE
GE
The comparison
crosstax against e‑mail, Excel and paper.
The honest comparison is not with another piece of software, it is with what happens in most firms today.
| Property | Without crosstax | With crosstax |
|---|---|---|
| Documents land in the workflow, not in an inbox | Without crosstaxdoes not work | With crosstaxworks |
| The AI reads the documents | Without crosstaxdoes not work | With crosstaxworks |
| Every figure names its document | Without crosstaxdoes not work | With crosstaxworks |
| Reminders run by themselves | Without crosstaxdoes not work | With crosstaxworks |
| Your clients see your firm | Without crosstaxworks | With crosstaxworks |
| Cost | Without crosstaxA lot of time spent on manual work | With crosstaxCosts moneyStart benefiting now See the prices |
Why pay when e‑mail is free?
Because retyping is not free, it is invisible: it gets paid for in hours of your licensed professionals, just not by invoice. How many hours that is depends on your firm — on the case load, the clients and the volume of documents. Weigh it against the price at your own hourly rate.
See the prices„crosstax mirrors the calculation and the authority procedure exactly — every figure is traceable to its source. A real relief for my clients.“
Florian ZepfPartner · ZEPF TAXES, ZürichIn partnership with
Try it yourself.
Muster Treuhand AG is our example firm on crosstax — with its own portal page and forms you can fill in yourself.
No account, no sign-in. Muster Treuhand AG is made up — the software behind it is the real thing.
Signing is digital — no printer.
- Swiss Made Software
- E-signature powered by
Ready in minutes.
- 1Create an accountIn a few minutes — no payment details.
- 2Set up your firmAdd your logo and colours. crosstax runs under your firm and your brand.
- 3See the pricesClear tiers, founding price for good. We settle the plan together.
- 4Get goingOpen your first case and invite your clients.
Bring your firm into the AI era now.
Already have an account? Sign in
More for firms: features, demo & comparison
Are you a client or private individual?Switch to the client view
Schedule a demo
See crosstax on your own cases.
30 minutes with the people behind crosstax. We show you on your own cases what crosstax would do for your firm — and answer your questions.
Florian Zepf · Klaus Fuchs
Partner · ZEPF TAXES · CTO · NC Labs
We look forward to showing you the future of tax advisory.
Photograph. Upload. Done.
Your tax firm sends you a link. You answer a few questions and photograph your receipts — your firm does the rest.
- No account, no password — your firm’s link is all you need.
- Encrypted, and only your firm sees your documents.
Upload documents
Photo or PDF — both work
“Salary certificate(s)”
Detected:Salary certificate
Confirm — done
“Employers & salary – please review”
Source: “Salary certificate(s)”
You check each value with one click. Then your firm takes over.
Three steps — then your firm takes over.
- 1
Open the link
Your firm sends you a personal link. No password needed.
- 2
Upload documents
Photo or PDF — you don't type anything.
- 3
Confirm — done
You check each value with one click. Then your firm takes over.
Example view
Photo or PDF — both work
Lohnausweis_2025.pdf
Detected:Salary certificate
Take a look first.
Open an example and click through it — exactly the way your firm would send it to you.
No account, no sign-in. Your answers stay on your device until you send them.
Learn now how AI workflows work with crosstax — for example 🇨🇭 Tax declaration🇨🇭→🇩🇪 Pension · withholding tax🇨🇭→🇩🇪 Dividend · withholding tax🇩🇪 Income tax declaration🇩🇪 Rental income · Anlage V🇩🇪 Exit tax · §6 AStG🇨🇭 Real-estate capital gain🇨🇭 transparency register🇩🇪 inheritance tax · pre-intake
Nothing is built for Austria yet — and we don’t show coverage that doesn’t exist. Tell us which one you need
See all examples- Phone or computer — you install nothing.
- The interface in 5 languages, the questions themselves in 4: German, French, Italian, and English.
- Signing is digital — no printer.
🇨🇭 Swiss-hosted · SwissSign timestamps
- Swiss Made Software
- E-signature powered by
In partnership with
Your firm invites you.
You get the link directly from your tax firm.
Encrypted & EU-hostedOnly your firm has accessQuestions in German, French, Italian, and English
More for individuals
Your firm isn't on crosstax yet?Switch to the firm view
Your firm isn't with us yet?
Tell us which firm — we'll show them.
Give us your tax firm and how to reach you. We'll introduce crosstax there — no obligation.
Florian Zepf · Klaus Fuchs
Partner · ZEPF TAXES · CTO · NC Labs
We look forward to showing you the future of tax advisory.