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Complete Guide

Selling Mandate in Switzerland: Simple vs Exclusive

Which contract should you sign with your real estate agent? A detailed comparison of simple and exclusive mandates, with legal clauses, commissions, and tips to choose wisely.

May 18, 2026

Before listing your property in Switzerland, you face a crucial decision: which type of selling mandate should you sign with your real estate agent? The choice between a simple mandate (mandat simple) and an exclusive mandate (mandat exclusif) has significant consequences for your sale timeline, marketing strategy, and commission costs. This guide covers everything you need to know to make the right call.

What is a selling mandate?

A selling mandate is a contract by which a property owner (the mandator) entrusts a real estate agent (the mandatary) with the task of finding a buyer for their property. Under Swiss law, this contract is governed by Article 394 et seq. of the Code of Obligations (CO/OR), which establishes the general framework for mandate contracts.

The mandate defines the rights and obligations of each party: the scope of the agent's assignment, the duration of the contract, commission conditions, termination terms, and any special clauses. It is a consensual contract — it is formed by the mere agreement of the parties, although a written form is essential for evidentiary and practical reasons.

In Switzerland, three main types of selling mandates exist:

The type of mandate you choose determines the agent's level of commitment, the marketing effort invested, and how the commission is structured. Before making your decision, it is worth understanding the true market value of your property, as this directly influences your choice of mandate.

The simple mandate: multi-agency freedom

The simple mandate is the most flexible form of selling mandate in Switzerland. Under this contract, the seller can mandate several agents simultaneously and may also look for a buyer independently.

How it works

You sign a mandate with one or more agents. Each agent markets your property through their own channels — portals, network, contacts. The commission (typically 2–5% of the sale price) is only due to the agent who introduces the successful buyer. If you find the buyer yourself, you owe no commission to any agent — unless the mandate contains a specific clause to the contrary.

Commission structure

Pros of the simple mandate

Cons of the simple mandate

The exclusive mandate: full commitment

Under an exclusive mandate, you entrust a single agent with the sale of your property. No other agent may be mandated, and in most cases, you cannot sell privately without triggering the commission.

How it works

You sign a contract granting exclusive selling rights to one agent for a defined period — typically 3 to 6 months, renewable by tacit agreement. The agent commits to a structured marketing plan: professional photography, virtual tours, targeted advertising, viewings, and negotiation support.

The cascade commission clause

Most exclusive mandates include a cascade commission clause (clause de cascade). This means:

Pros of the exclusive mandate

Cons of the exclusive mandate

Comparison table: simple vs exclusive mandate

Criterion Simple mandate Exclusive mandate
Number of agentsUnlimitedOne only
Agent commitmentLimitedFull — dedicated marketing plan
CommissionTo the introducing agent onlyDue even if seller finds the buyer (cascade)
Typical rate3–5%2–4% (often negotiable)
DurationFlexible, often 3 months3–6 months, renewable
TerminationEasy — often immediateFormal notice, 30-day period typical
Seller freedomFull — can sell privatelyLimited — cascade clause applies
Marketing effortBasic listing onlyProfessional photos, staging, ads, tours
Average time to sellLonger (6–12 months)Shorter (2–5 months)

Which mandate should you choose?

There is no universal answer — the right mandate depends on your property, your market, and your goals. Here are practical guidelines by situation:

By property type

By market conditions

By urgency

By canton

Some cantonal practices worth noting:

Important clauses to check before signing

Whether simple or exclusive, a selling mandate is a binding contract. Before signing, scrutinize these clauses carefully:

Duration and renewal

The mandate should have a clear start and end date. Avoid contracts that auto-renew indefinitely. A typical duration is 3 months (simple) or 6 months (exclusive), with a tacit renewal clause that can be terminated with 30 days' notice.

Termination — Article 404 CO

Under Article 404 CO/OR, a mandate can be terminated at any time by either party. However, the terminating party may be liable for damages if termination occurs at an "inopportune moment." In practice, this means:

Cascade commission clause

In exclusive mandates, the cascade clause specifies the commission owed if you find the buyer yourself. Typical structures:

Negotiate this clause. A fair arrangement is a reduced commission (1–2%) if you find the buyer yourself.

Reserve price (prix minimum)

The mandate should specify whether you set a reserve price — the minimum price below which the agent cannot commit. This protects you from undervalued sales. If the mandate includes a reserve price, the agent must refuse any offer below it.

Agent's obligations

The mandate should clearly define what the agent commits to doing:

Mandate and taxation

The financial impact of a selling mandate extends beyond the commission. Here's how it interacts with Swiss taxation:

Commission deductibility

Agency commission is deductible from the capital gain when calculating the capital gains tax on property sales. This reduces your taxable gain. For example:

Sale price: CHF 800,000

Purchase price: CHF 500,000

Commission (4%): CHF 32,000

Taxable gain: CHF 800,000 − CHF 500,000 − CHF 32,000 = CHF 268,000

Without deducting the commission, the taxable gain would have been CHF 300,000. The commission saves you tax on CHF 32,000 of gain.

VAT on agency commission

Agency commissions are subject to VAT at 8.1% (standard rate since January 2024). The VAT is typically added on top of the commission percentage. For example:

Check whether the stated commission is VAT-inclusive or exclusive. This makes a significant difference on large transactions.

Impact on capital gains tax

The sale of your property triggers capital gains tax (impôt sur les gains immobiliers / Grundstückgewinnsteuer), which varies by canton. Deductible costs — including the agency commission, notary fees, and energy renovation costs — reduce the taxable gain. Keep all invoices and receipts for your tax declaration.

💡 Tip: In some cantons (e.g., Geneva, Vaud), the capital gains tax rate decreases the longer you hold the property. If you're close to the next holding period bracket, it may be worth timing your sale to benefit from a lower rate — which could affect your mandate duration strategy.

5 mistakes to avoid with a selling mandate

  1. Signing an exclusive mandate with an unknown agent without checking references. Always verify the agent's track record, local market knowledge, and client reviews. An exclusive mandate with a poor agent is worse than no mandate at all — you're locked in with someone who won't deliver. Ask for recent sales in your area and canton.
  2. Not reading the cascade clause. Some exclusive mandates stipulate full commission even if you find the buyer yourself. Negotiate a reduced cascade commission (1–2%) or, better yet, a clause that only triggers commission if the agent directly introduces the buyer.
  3. Forgetting the automatic renewal clause. Many mandates auto-renew for equal periods unless terminated in writing within a specific window. Mark the termination deadline in your calendar as soon as you sign.
  4. Not setting a reserve price. Without a minimum price in the mandate, the agent could — theoretically — accept an offer well below your expectations. Always set a reserve price and adjust it in writing if the market requires it.
  5. Choosing a simple mandate for a luxury or unusual property. Difficult-to-sell properties need dedicated marketing, professional staging, and targeted outreach. A simple mandate means no agent will invest in these efforts. The slight commission savings are offset by a longer selling time and often a lower final price.

Frequently asked questions

Can I sign both a simple and exclusive mandate at the same time?

No. An exclusive mandate contractually prevents you from signing with another agent. If you want multiple agents, choose a simple mandate. If you want one committed agent, choose an exclusive mandate. Mixing both is a breach of contract that could result in paying double commission.

Can I terminate an exclusive mandate before it expires?

Yes, under Article 404 CO, either party can terminate a mandate at any time. However, terminating at an "inopportune moment" (e.g., when the agent has a ready buyer) may trigger damages. Check your contract for notice periods (usually 30 days) and any penalty clauses.

Is the agent's commission negotiable?

Yes. Commission rates in Switzerland are not regulated and vary between 2% and 5%. Everything is negotiable: the percentage, the cascade clause, flat fees vs. percentage, and VAT inclusion. Don't hesitate to compare multiple agencies before signing.

Do I pay commission if I find the buyer myself?

It depends on your mandate type. With a simple mandate: no commission is due if you find the buyer yourself. With an exclusive mandate: the cascade clause usually triggers a reduced commission (1–2%), or sometimes the full commission. Read your contract carefully.

What happens if the buyer introduced by the agent withdraws?

Commission is generally only due upon successful completion — when the deed of sale is signed at the notary. If the buyer withdraws before that point, no commission is owed. However, some mandates include a partial fee if the buyer withdraws for reasons unrelated to the property. Check the specifics of your contract.

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