Swiss VAT return: when and how to file VAT in Switzerland

What you need before filing a Swiss VAT return

A valid Swiss VAT number

Before filing any VAT return, your company must first be registered with the Swiss Federal Tax Administration. In practical terms, your Swiss UID/VAT number must be active before you report taxable transactions in Switzerland.

The VAT return is the document through which your company reports taxable turnover, input VAT and the final balance payable to, or recoverable from, the AFC. For the key rates and rules, see the VAT in Switzerland guide.

A Swiss fiscal representative for foreign companies

Swiss rules are clear: a company with no domicile or registered office in Switzerland must appoint a fiscal representative in Switzerland e.

The representative is authorised to interact with the AFC, prepare the VAT statement and submit the VAT return on behalf of the foreign company.

Swiss VAT return process: when and how to file

Standard filing frequency: quarterly VAT returns

In most cases, Swiss VAT returns are filed quarterly. The filing and payment deadline is 60 days after the end of each VAT period.

The standard quarterly deadlines are usually:

• Q1, January to March: 31 May
• Q2, April to June: 31 August
• Q3, July to September: 30 November
• Q4, October to December: 28 February of the following year

These dates matter because filing and payment follow the same logic.

The practical steps to file a Swiss VAT return

1. Collect sales invoices, purchase invoices and customs documents linked to imports into Switzerland.
2. Send the documents to your Swiss fiscal representative before the deadline.
3. The representative reviews transactions, calculates output VAT and input VAT, then prepares the VAT statement.
4. The VAT return is submitted online through the AFC SuisseTax portal.
5. Your company pays the VAT due directly to the AFC within the 60-day deadline.

What must be included in a Swiss VAT return?

Output VAT on taxable transactions

Output VAT is the VAT you charge to customers on taxable transactions located in Switzerland. These sales must be reported according to the applicable Swiss VAT treatment.

Deductible input VAT

Input VAT is VAT your company has paid on business expenses in Switzerland and may be entitled to recover.

Common sources include:

• purchases of goods or raw materials in Switzerland;
• overhead costs, such as office or warehouse rental;
• services purchased in Switzerland and subject to Swiss VAT;
• import VAT paid when goods are imported into Switzerland.

The key point is documentation. Deductions must be supported by proper invoices and customs documents. See also our guide on importing into Switzerland for import VAT recovery.

What happens if the Swiss VAT return is late or incorrect?

Late payment: default interest

The AFC applies default interest when VAT is paid late. The rate mentioned in the source article is 4% per year, calculated on VAT paid after the deadline.

An extension request does not automatically remove the payment risk. If VAT is expected to be due, an estimated payment should be made within the initial deadline.

Missing or incorrect VAT returns

A missing VAT return, understated turnover or unjustified input VAT deduction can lead to corrections, fines and more detailed reviews by the Swiss tax administration.

How to keep Swiss VAT compliance under control

Swiss VAT compliance is not complicated when the process is structured. The real challenge is timing: the return is quarterly, but information should be collected continuously. Learn how to claim a VAT refund in Switzerland.

Clear internal deadlines, complete invoices and regular communication with the representative keep your Swiss VAT position secure. Learn how to get a VAT number in Switzerland.