🧾 Tax & Administration

The paper your foreign tax file is waiting for

Double-taxation treaty claims, foreign tax numbers, proof of Swiss tax residence, payment attestations — foreign tax offices want it certified from the Swiss administration. We request the right document from the right office, canton by canton.

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✓ CHF 119 excl. VAT — official fees & registered Swiss Post included

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Treaty claim — Form 6166’s Swiss cousin

Tax-residence certificate from the cantonal administration · apostilled · the withholding-tax refund claim filed complete in Madrid.

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From the competent tax office

Federal, cantonal, communal — Swiss tax attestations come from different desks depending on the question. We know which desk and how to ask.

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Treaty-claim ready

Residence certificates for double-taxation claims are the classic; foreign forms often need Swiss counter-signature, which we coordinate.

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Quoted by request

A single attestation or a set with domicile and apostille — describe the foreign requirement, we quote flat within one business day.

What we’ll need from you

✓Your full name (or company name) and address
✓The canton (and commune) of taxation
✓What the foreign authority asked for — their form or wording helps
✓Tax year(s) concerned
✓Copy of your ID and delivery address

💡 Useful options at checkout

Apostille or cantonal legalisation for use abroad (+CHF 140; consular legalisation at the embassy tariff) · certified translation · DHL Express Europe (+CHF 90) or outside Europe (+CHF 140). Prices excl. VAT 8.1%.

How it works

Describe your need

Document, canton, purpose — a few lines and any papers you already have.

Receive your flat quote

Within one business day: price, timeline and exactly what we’ll need.

We handle the rest

Retrieval, certification, options and delivery — you follow by e-mail.

Questions about this document

Can you get the certificate the foreign treaty form requires?

Yes — send us the foreign form; Swiss tax offices routinely certify residence directly on such forms or issue their own certificate that accompanies it.

Do you see my tax data?

Only what the attestation itself states. Requests run with your written authorisation, and documents ship sealed to you or your advisor.

Can my fiduciary order for me?

Yes — mandated fiduciaries and tax advisors order with a power of attorney; we provide the template with the quote.

Complete the treaty file

CHF 119 · official fees & registered Swiss Post included · prices excl. VAT 8.1%

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