Tax and legal form when selling a Swiss business
Share deal or asset deal, tax-free capital gains and their limits, indirect partial liquidation, and why the structure should be settled before the letter of intent.
8 min
The starting point: tax-free capital gains
For an individual selling shares held as private assets, the capital gain is generally free of Swiss income tax. On a lifetime's accumulated value this is a remarkable privilege — and it is why tax questions in Swiss successions are less about the rate and more about not accidentally losing the exemption.
The exemption has well-defined limits, and most tax structuring in a sale is about staying clearly inside them. Two of the classic pitfalls — indirect partial liquidation and transposition — are described below.
Share deal or asset deal
In a share deal the buyer acquires the company — with its history, contracts, permits and liabilities. The seller's gain is typically tax-free as a private capital gain. In an asset deal the buyer acquires selected assets and contracts; the company is taxed on the gains realised, and the subsequent distribution or liquidation to the owner is taxed again.
Sellers therefore almost always prefer a share deal and buyers an asset deal. The tension is usually settled in the price, in guarantees and indemnities, and in the scope of the tax representations the seller gives.
Indirect partial liquidation
If a buyer finances the purchase out of the target company itself — for example by having the company distribute reserves after closing to service the acquisition debt — the tax authorities can requalify the seller's tax-free capital gain as taxable investment income. The doctrine is called indirect partial liquidation.
The practical protection is contractual: buyers are asked to commit not to extract substance from the company for a defined period, typically five years, and to indemnify the seller for any resulting tax. This clause is standard in Swiss share purchase agreements and worth understanding before you sign it.
Transposition and the five-year shadow
Selling shares shortly after transferring a business from a sole proprietorship into a company — a transposition — can also convert part of the gain into taxable income if the sale happens within five years of the transfer. The rule exists to prevent hidden reserves being cashed out tax-free immediately after incorporation.
Owners who incorporated recently, or who are considering converting before a sale, should take advice on the timing first. Sometimes the right answer is simply to sell earlier or later.
Settle the structure before the price
Structure and price are negotiated together, because they move each other: an asset deal at a given price can leave the seller with materially less after tax than a share deal at a lower one. Buyers know this, and a seller who has modelled it negotiates from a stronger position.
The disciplined sequence is: indicative valuation, tax and legal structuring advice, then the letter of intent. A letter of intent that fixes the form of the transaction before the tax consequences are understood can quietly cost a six-figure sum.
General information for orientation only. It is not tax, legal or financial advice; obtain qualified Swiss advice for your situation.