Best Broker for Swiss Investors in 2026: Fees, Tax and Simplicity

Updated: 18 September 2026.

This article is educational and does not constitute personalised investment advice.

Broker comparisons often focus on the visible trading commission. For a long-term Swiss investor, that is only one part of the bill.

Currency conversion, custody fees, Swiss tax administration, market access, product choice and the cost of moving a portfolio can matter just as much. More importantly, the cheapest broker is useful only if the investor is comfortable enough with it to maintain a disciplined investment plan for decades.

Four serious options for a Swiss ETF investor

BrokerHeadline pricingCustodyFX / tax convenienceGuidefinances use case
Interactive BrokersSwiss shares from 0.05%, min. CHF 1.50 tieredNo inactivity/account minimumVery low-cost global infrastructure; Swiss tax work less turnkeyCost-focused global investor
Saxo Bank SwitzerlandSIX 0.08%, min. CHF 3; US 0.08%, min. USD 1CHF 00.25% FX; free e-tax statementPreferred Swiss-based alternative
SwissquoteSwiss/US/UK trades from CHF 3; ETF Leaders CHF 3–9From CHF 20/quarter + VATSwiss platform and tax ecosystemSwiss convenience / broad range
DEGIROUS €1 + €1; SIX CHF 5 + CHF 1; selected ETFs €1 handlingNo classic percentage custody feeAdditional FX/connectivity costs may applyLow-cost secondary option

Interactive Brokers: difficult to beat on global cost

Interactive Brokers remains exceptionally competitive for investors who buy international securities and are comfortable with a more professional platform. Its tiered pricing for Swiss shares starts at 0.05% with a CHF 1.50 minimum, while individual IBKR Pro accounts have no account minimum and no inactivity fee.

Its biggest advantage is broader than the commission schedule: global market access and low institutional-style currency conversion make it particularly suitable for portfolios containing securities in several currencies.

The trade-off is convenience. A Swiss investor prepared to manage tax data and a more complex interface may see that as trivial; someone who wants a Swiss tax statement and local support may reasonably pay more.

Saxo has changed the Swiss comparison

Saxo deserves renewed attention in 2026. Saxo Bank Switzerland currently charges 0.08% for standard stock and ETF trades, with minimums of CHF 3 on SIX and USD 1 on major US exchanges. It charges no custody or inactivity fee, applies a 0.25% FX conversion fee and provides a free e-tax statement. It is a FINMA-regulated Swiss bank.

This makes Saxo the most interesting Swiss-based middle ground in our comparison: substantially more convenient for Swiss administration than a foreign broker, yet far less expensive than the traditional Swiss-broker model used to be.

Its AutoInvest service also offers commission-free purchases for a selection of more than 100 ETFs, although investors should still compare the underlying ETF selection and total product costs rather than choosing an ETF merely because the purchase commission is zero.

Swissquote: convenience has a price

Swissquote has dramatically broader recognition among Swiss investors and offers a mature platform and extensive product range. Trading fees for Swiss, US and UK shares now start at CHF 3 for small transactions, while selected ETF Leaders on SIX cost CHF 3–9 per trade.

The important difference is custody. Private-account custody charges begin at CHF 20 per quarter and rise with assets, with VAT added.

That is not necessarily irrational. Some investors deliberately pay for Swiss custody, local administration and familiarity. But these are services, not free features. They should be priced as such.

DEGIRO: still inexpensive, no longer the obvious default

DEGIRO remains inexpensive for selected transactions: US shares currently cost €1 plus €1 handling, SIX shares CHF 5 plus CHF 1, and the Core ETF Selection carries a €1 handling fee with zero headline commission. Currency, connectivity and other external costs can apply.

For existing satisfied clients, there may be little reason to move. For a new Swiss investor choosing from scratch in 2026, however, IBKR’s global cost structure and Saxo’s new Swiss pricing make the comparison much closer.

Guidefinances view

Interactive Brokers remains our preferred cost-focused choice for experienced, globally diversified Swiss investors.

Saxo is our preferred Swiss-based alternative for investors willing to pay a little more for Swiss regulation, local infrastructure and a free e-tax statement.

Swissquote remains credible where Swiss institutional familiarity and product breadth are worth the additional recurring cost, while DEGIRO remains competitive but is no longer the automatic low-cost answer.

Do not change broker for a CHF 5 saving on one trade. Over decades, what matters is the combination of recurring costs, taxes, foreign exchange, execution quality and the probability that you will actually stick with the investment process.

Fees reviewed on 18 September 2026 and should be checked before opening or transferring an account.