Professional Securities Trading with Bitcoin in Switzerland: The 5 Criteria

Short answer: Professional securities trading (gewerbsmässiger Wertschriftenhandel) with bitcoin means the tax authority treats your purchases and sales as self-employment. Price gains then count as income, and AHV social security contributions come on top. You are safely private if you meet five criteria set by the ESTV (Swiss Federal Tax Administration): a 6-month holding period, low turnover, gains below 50% of net income, no credit, no speculative derivatives (as of Nov 13, 2026).

In Switzerland, bitcoin gains are tax-free. You read that sentence everywhere, and for most people it is true. But it has a condition: you have to manage your wealth privately. Anyone who trades too much, too briefly or with borrowed money becomes a professional trader, and then a good bitcoin year can cost a third of the gain. This article shows you where the line for professional securities trading with bitcoin lies, with three examples in francs.

The overview of all Swiss bitcoin taxes, from wealth tax to mining, is in Bitcoin taxes in Switzerland. Here it is only about this one line.

What professional securities trading is

The law doesn't use the term. It only distinguishes two kinds of income: capital gains on private wealth, which are tax-free, and income from self-employment, which is taxable. Exactly where the line runs has been decided by the Federal Supreme Court over decades.

The short version of the case law: anyone who makes purchases and sales "in a manner that goes beyond the simple management of private wealth" is self-employed. That requires neither a company nor an office nor customers. It is enough if you trade systematically and with a view to profit, even just on a laptop in the evening.

The same applies to bitcoin. The Cantonal Tax Office of Zurich writes in its tax manual that the practice on securities trading applies by analogy to professional trading in cryptocurrencies, meaning the ESTV's Circular No. 36 of Jul 27, 2012. Bitcoin itself is not a security, but it is judged by the same standards.

The 5 criteria: your self-test

So that investors are not left in uncertainty, the ESTV set out five criteria. If all are met, the tax authorities assume private wealth management "in any case".

Let's go through them one by one, because with bitcoin each criterion has its own trap.

Criterion 1: holding period

If you buy through a savings plan, you have bitcoin from many months. When you sell, the coins sold should be at least 6 months old. The circular doesn't prescribe any order. So keep your purchase records so you can show which purchases you are selling. A sale from a wallet that holds only old purchases is the easiest to prove.

Criterion 2: transaction volume

What counts is the sum of all purchase prices and sale proceeds in the calendar year. It is compared with your securities and balances at the start of the year, that is your statement of securities (Wertschriftenverzeichnis) as of January 1: bank accounts, securities and bitcoin together. Moves between your own wallets are not transactions.

Criterion 3: gains below 50% of net income

This criterion hits long-term holders of all people, and precisely when they have reached their goal. If you take early retirement and live off bitcoin sales, you have little other income. Even moderate sales then exceed the 50%. The second example below works this through.

The word "gains" matters. If you sell CHF 30’000 of bitcoin that you bought for CHF 10’000, CHF 20’000 of gain counts, not the whole proceeds.

Criterion 4: no buying on credit

Bitcoin pays no interest or dividends. The exception "income covers the interest on debt" therefore practically never applies. Any loan you use to buy bitcoin fails this criterion. The circular calls the use of borrowed funds the "strongest indication" of professional trading.

A loan against bitcoin that you live on instead of selling is different: then the money funds your daily life, not your investments. But if you can't prove what it was used for, the tax authority allocates the debt proportionally to your assets. So keep a record of what you spend the borrowed money on. How such loans work is explained in Borrow instead of selling.

Criterion 5: derivatives

Futures, leveraged perpetuals, leveraged bitcoin ETPs and options for speculation fail this criterion. Only hedging your own positions is allowed. If you hold bitcoin and do nothing else, you are on the safe side here.

One criterion missed: what happens then

If you miss a criterion, you are not automatically a trader. The tax authority then judges the overall picture of your case. Since a Federal Supreme Court ruling of 2009 (2C_868/2008), it weights the factors like this:

The two weak indications are not enough on their own. A computer scientist who knows a lot about bitcoin and reinvests gains in bitcoin does not become a trader because of it. Conversely, according to the Federal Supreme Court, a single large, short-term transaction can be enough in some circumstances.

Each tax year is assessed, at the time of a sale. Only then are all the circumstances known.

Three examples in francs

For the examples: on Nov 12, 2026, one bitcoin cost about CHF 59’540 (€64’490). Bitcoin held on Jan 1, 2026 are valued at the ESTV's price as of Dec 31, 2025, about CHF 69’572.

The higher the price, the larger the share of gain in every franc sold. That is why people who live off bitcoin slip over the 50% precisely in good years. Where the price currently stands relative to the trend is shown by the Power Law analysis.

The consequences of being classified as a trader

If you trade professionally, you are self-employed for that activity. The bitcoin you trade with become business assets. That has consequences beyond the tax on the gain:

1. Gains are income and are taxed at your full rate by the federal government, canton and municipality.
2. AHV/IV/EO come on top. In 2026, self-employed people pay 10% on income from CHF 60’500 (8.1% AHV old-age insurance, 1.4% IV disability insurance, 0.5% EO income compensation), below that on a sliding scale from 5.371%. You register with your canton's compensation office (Ausgleichskasse).
3. Losses count. Booked losses are deductible and can be carried forward for up to seven years (Art. 31 DBG). For traders in a bad year, that is the only advantage.
4. Interest on debt is fully deductible, not just up to investment income plus CHF 50’000 as with private wealth.
5. You have to keep records: statements of assets and liabilities, income and expenses, and private withdrawals and contributions (Art. 125 para. 2 DBG). Without them, losses are hardly recognized.
6. Stopping costs too. If you later move the bitcoin back into private wealth, that counts as a sale: the increase in value up to then is taxable (Art. 18 para. 2 DBG).
7. Heirs take over the status. Inherited bitcoin remain business assets if they were with the deceased. More on gifts and inheritance in Gifting and inheriting bitcoin: tax consequences.

How to stay in private wealth management

For people who hold bitcoin for years, a few habits are enough:

1. Keep purchase records. Date, quantity, price. With them you prove the holding period and purchase price.
2. Don't buy with borrowed money. No Lombard loan for bitcoin, no leverage on the exchange.
3. No derivatives for speculation. Hold real bitcoin instead of futures or leveraged ETPs.
4. Plan sales instead of trading. Partial sales by fixed rules, not by the mood of the day. How that works is shown in Taking bitcoin profits.
5. Spread large sales. If you sell a lot, you are more likely to stay below 50% of net income if you spread it over several years.
6. Keep an eye on the gain share as soon as you live off bitcoin. What else that takes is shown in Living off bitcoin.

How much you can withdraw each year without your holdings shrinking too fast, you can work out here:

But tax is only one side: how large a sustainable withdrawal may be is explained in The 4 percent rule with bitcoin. How to declare bitcoin correctly in your tax return is shown in Bitcoin in the Swiss tax return. And what the holding period and exemption limit look like in Germany is explained in the category guide Bitcoin taxes in Germany.