Swiss VAT return step by step: effective method or net tax rate?

If you are registered for VAT in Switzerland, you settle the tax periodically with the Swiss Federal Tax Administration (FTA/ESTV). Most SMEs can choose between two methods: the effective method and the net tax rate method (Saldosteuersatz). Both produce a correct return, but they differ greatly in effort, and sometimes in the amount you end up paying.

Start with the VAT rates

Since 1 January 2024, Switzerland has had three VAT rates:

These are the rates that appear on your invoices, whichever accounting method you have chosen. This is often misunderstood: even if you use the net tax rate method, you show your customers the statutory rate.

The effective method

With the effective method, you calculate the tax due on your sales and deduct the input tax, i.e. the VAT your suppliers have charged you.

What to do each reporting period:

1. List all sales for the period by tax rate.
2. Calculate the output tax.
3. Add up the input tax on materials, goods, investments and operating expenses.
4. Deduct the input tax from the output tax.
5. File the return in the FTA portal and pay the balance.

Under the effective method, you generally file quarterly. For every input tax amount you need a document that meets the requirements for an invoice. If details or documents are missing, the deduction is at risk.

The net tax rate method

With the net tax rate method, you multiply your gross revenue, i.e. including VAT, by a sector-specific rate approved by the FTA. Input tax is built into this rate as a flat amount, so you neither record it nor need to prove it. You file every six months.

The method is only open to smaller businesses. The limits are:

• no more than CHF 5,024,000 in revenue from taxable supplies a year, and
• no more than CHF 108,000 in tax a year, calculated at the applicable net tax rate.

Some examples from the FTA ordinance: accounting firm 6.2%, architecture practice 6.2%, graphic design studio 6.2%, hairdresser 5.3%. Since 2025, IT services have had a new rate of 6.2% instead of 6.8%. Check your sector's rate in the FTA's current list, as around 15% of the rates were adjusted for 2025.

Worked example: a graphic design studio

A graphic designer has annual revenue of CHF 150,000 net. With 8.1% VAT, she invoices a total of CHF 162,150. For software, hardware and office rent she pays CHF 30,000 net plus CHF 2,430 in input tax.

Under the effective method she pays CHF 333.30 less. In return, she has to document every input tax amount and file four times a year instead of twice. If her input tax were only CHF 1,200, the picture would reverse: under the effective method she would owe CHF 10,950, while the net tax rate would still come to CHF 10,053.30.

As a rule of thumb, the higher your input tax compared with the average for your sector, the more likely the effective method is to pay off. This mainly applies to businesses with large investments or high costs of goods. For service providers with low expenses, the net tax rate is often cheaper and simpler.

What changed in 2025

Following the partial revision of the VAT Act, several new rules have applied since 1 January 2025:

• More than two net tax rates: previously, a maximum of two rates was possible. Now each activity gets its own rate as soon as it accounts for more than 10% of total taxable revenue. You must record the revenue for each rate separately.
• Annual returns: businesses with no more than CHF 5,005,000 in revenue from taxable supplies can apply to file once a year. The FTA then collects instalments. Under the effective method, each instalment is a quarter of the previous year's tax; under the net tax rate method, it is half. You must stay with annual filing for at least one full tax period.
• Online filing required: since 1 January 2025, all VAT-registered businesses file their returns online via the FTA portal. Paper forms are no longer available.
• Adjustments when switching: if you switch from the effective method to the net tax rate method, you must repay input tax previously deducted on the current value of assets you still hold. If you switch the other way, you can claim the tax on those assets as input tax.

Deadlines and switching at a glance

One point many people overlook: if you do not opt for the net tax rate within 60 days of first registering, you must use the effective method for at least three full tax periods. So the choice you make at the start matters more than it seems.

Step by step to a clean return

Whichever method you use, this process helps:

1. Close your books: all invoices for the period recorded, bank accounts reconciled, open items cleared up.
2. Reconcile revenue: compare the revenue in your accounts with the total of your outgoing invoices. Clear up any differences straight away.
3. Check the tax rates: is the right rate on every revenue entry? Businesses with mixed activities are especially prone to mistakes here.
4. Check input tax (effective method only): is there a document with the supplier's VAT number for every input tax amount?
5. Enter the return in the portal, check it for plausibility and submit it.
6. Make the payment so that no late-payment interest is charged.
7. Annual reconciliation: after year-end closing, reconcile the four quarters with the annual figures and correct any differences in time.

If every entry carries a VAT code from the moment it is recorded, these steps become much shorter. In Buchsnap, the code is set as soon as the receipt is captured, so the return at the end of the quarter is mostly a matter of checking.

Common mistakes in VAT returns

• Wrong revenue figure with the net tax rate: the net tax rate applies to gross revenue including VAT, not to the net amount. If you use net figures, you under-declare.
• Input tax without a valid document: a card slip with no details of the supply, or an invoice without the supplier's VAT number, is not enough for the deduction.
• Forgetting private use: if you also use a company car or equipment privately, the effective method requires an input tax adjustment. With the net tax rate, own use is already factored into the rate.
• Several activities, one rate: since 2025, every activity accounting for more than 10% of revenue needs its own net tax rate. If you apply the lower rate to everything, you risk a back-tax assessment.
• Missed deadlines: late payment triggers late-payment interest without any reminder. If time gets tight, you can apply for an extension in the FTA portal.

Which method suits you?

In favour of the net tax rate: little effort, six-monthly returns, no need to prove input tax and a predictable tax bill. Against it: large investments bring no input tax deduction, and you are tied in for at least one tax period.

In favour of the effective method: exact tax, full input tax deduction, and often cheaper if you invest or export. Against it: more effort and stricter requirements for documents.

Work through both options with last year's figures and factor in any planned investments. If you expect major purchases in the next few years, the effective method is usually the safer choice.

Last updated: October 2026. This article does not replace individual advice.