Built for DBA processes · Switzerland ↔ Germany

Reclaim tax you overpaid.

We calculate your reclaim and produce the ready-to-file authority package. Available now: Swiss withholding tax after moving to Germany — more cases to come.

EU data residency · In partnership with Zepf Taxes

Example · Withholding taxTax year 2022

CHF 30’852

Reclaimable Swiss withholding tax on the pension payout

Documents captured
Amount calculated
Package created
In partnership with Zepf TaxesEU data residencyGerman–Swiss treaty (DBA)End-to-end encrypted

The digital bridge

One platform instead of a thousand emails.

The platform for innovative tax firms and their clients: pick a workflow, submit documents, AI-checked, file together — all in one place, encrypted, searchable, reusable.

The Swiss withholding tax is one of many workflows — example below.

1

Pick a workflow

The advisor or the client starts the right reclaim workflow.

Questions about this step?

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2

Submit documents

The client gets an email invitation and uploads documents securely.

Questions about this step?

kontakt@crosstax.app
3

AI extraction

Documents are auto-read, validated and structured for review.

Questions about this step?

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4

Review together

Resolve questions in a document chat. Automatic reminders.

Questions about this step?

kontakt@crosstax.app
5

Submit & store

Ready-to-file authority package — encrypted, searchable, reusable for future cases.

Questions about this step?

kontakt@crosstax.app

50% time saved

Fewer errors

Full transparency

Choose your use case

Specialised reclaims for cross-border situations — continuously expanded.

Available

Get Swiss tax on your pension back

🇨🇭 Switzerland 🇩🇪 Germany

After leaving Switzerland, Swiss tax was withheld on your pension payout (pillar 2/3). We reclaim it for you.

Start
Coming soon

Cross-border dividend withholding tax

Reclaim foreign withholding tax on dividends and securities.

crosstax mirrors the calculation and the authority procedure exactly — every figure is traceable to its source. A real relief for my clients.
Florian Zepf

Florian Zepf

Partner · Zepf Taxes

Zepf Taxes

Start your reclaim

Check your eligibility, no obligation — in minutes.

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Swiss Made Software

© 2026 crosstax · issued by NC Labs GmbH · in partnership with Zepf Taxes, Zürich