Terminate a lease: free template (PDF & Word) – plus the notice calculator that names your earliest valid termination date

You want out of the flat, and the most common mistake costs you three months' rent: the wrong date. A lease termination is only valid for the local usual date with the right notice period. Miss it, and it slides to the next one automatically, and you keep paying. Here's the free, CO-compliant template. And a tool no one else has: the notice calculator, which works out your earliest possible exit in a second.

Key takeaway
As a tenant you terminate in writing, with the statutory or contractual notice for the local usual date (Art. 266a CO). For flats that's a 3-month notice period (Art. 266c CO), 6 months for commercial premises (Art. 266d), 2 weeks for furnished rooms (Art. 266e). What counts is receipt by the landlord, not the postmark. If you miss the date, the termination isn't void; it applies to the next possible date (Art. 266a para. 2 CO). A family home must be terminated by both spouses (Art. 266m CO).
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Terminate a Swiss lease: signed termination letter with registered-post receipt, apartment key, calendar and pen on a wooden table
3 months
notice period flat
to the local usual date (CO 266c)
receipt
counts, not the postmark
the termination must arrive in time
next date
if the date is wrong
the termination stays valid (266a para. 2)
0 CHF
the template costs
PDF + Word, ready to use

🏛️ What legally applies when terminating a lease

The good news first: as a tenant you can terminate your flat lease at any time, without giving a reason. You only need the right form and the right date. The termination must be in writing; only the landlord needs an official form, not you (Art. 266l CO). The 3-month notice applies to the local usual date, unless the contract sets something longer. For the full overview of all tenancy templates, see the Tenants & landlords hub. To draw up the lease itself, use the tenancy-agreement template.

The tricky part is the date. "Usual" means: the date that applies locally as a termination date, often end of March and end of September, but in many contracts also the end of each month. If you don't hit it with your notice, the termination stays valid and applies to the next possible date (Art. 266a para. 2 CO). That's exactly what the notice calculator below works out, so you don't waste a month.

Form rules that decide validity

These three form points you must observe as a tenant:

1
In writing, no official form needed
Your termination as a tenant must be written and signed. The official cantonal form is only required for the landlord (Art. 266l CO). A clean template is entirely enough for you.
2
Family home: both spouses sign
Married or in a registered partnership in the family home, you must both sign (Art. 266m CO). If one signature is missing, the termination is void.
3
By registered post, to prove receipt
Send the termination by registered post. For the deadline, receipt by the landlord counts, not the postmark. The registered post is your proof that and when it arrived.
Context
To leave before the date, there's a royal route: present an acceptable replacement tenant who is solvent and willing to take over on the same terms. The landlord must then release you from the lease (Art. 264 CO), and you're out at once. To document the condition beforehand, see the defect-list template.

🧮 The notice calculator: your earliest exit

Here's the killer, which no other template portal calculates: from when can you leave at the earliest? That's why we built the ConvivaPlus notice calculator. You pick the lease type, the date model and the receipt date, and it names the earliest valid termination date under Art. 266a–266e CO in a second, with a countdown to the last timely posting date.

🧮 ConvivaPlus Notice Calculator

Pick lease type, date model and receipt date → your earliest valid termination date.

Guideline value without warranty. Your lease and local usage are decisive (termination dates vary by municipality). When in doubt, ask the Tenants' Association.

How the ConvivaPlus notice calculator works: it adds the statutory notice (3 months for flats, 6 for commercial premises, 2 weeks for furnished rooms) to your receipt date and finds the first allowed termination date after it. The deadline logic according to ConvivaPlus follows Art. 266a–266e CO. What always counts is receipt by the landlord.

✍️ Your termination letter in 2 minutes

No more searching for "terminate lease template Word free": fill in the fields, and the generator makes you a CO-compliant termination letter, with a request for confirmation of receipt and key handover. To download as PDF, print, sign, send by registered post. To adapt, copy the text and refine it in Word.

✍️ Termination-letter generator

Fill in the fields → lease termination letter ready as PDF or to copy. Free, no registration.

TERMINATION OF THE LEASE

… … Termination of the lease for … Dear Sir or Madam, I hereby terminate the lease for the property named above ordinarily and within the deadline for …. Should this date not be the earliest possible, the termination applies to the next possible date (Art. 266a para. 2 CO). Please confirm receipt of this termination in writing and propose a date for the handover and key return. Kind regards …

Tip: send the termination by registered post and keep a copy. For a family home, both spouses must sign (Art. 266m CO).

This template does not replace legal advice. In a disputed termination, the conciliation authority (free) or the Tenants' Association helps.

🚦 The termination check: is your notice watertight?

Most terminations fail not on substance, but on a missing signature or a delivery dispute. Answer four questions and the ConvivaPlus termination check tells you instantly whether your notice is valid (🟢), carries a proof or timing risk (🟡) or is simply void (🔴) — before you send it and lose three months.

🚦 ConvivaPlus termination check

Four yes/no questions → green, amber or red. Checks form, date, family dwelling and delivery of your tenant termination.

Is the termination in writing and signed by your own hand?

Family dwelling (married / registered partnership): did both partners sign?

Did you check and hit the notice period and date with the calculator?

Are you sending it by registered mail (or confirming receipt)?

How the ConvivaPlus termination check judges: it tests the four levers that, according to ConvivaPlus, decide validity or nullity — written form and signature (Art. 266l/266o CO), the joint signature for family dwellings (Art. 266m CO), notice period and date (Art. 266a CO) and provable receipt. Form defects turn red (void), timing and delivery risks amber.

⏱️ The deadline matrix: notice and date at a glance

Which notice and which date apply to your contract depends on the rented property. This matrix shows the statutory minimum notice periods, with the article to look up. Important: the contract may set longer periods, but not shorter ones to your detriment. If you only sublet a room instead of leaving, you don't need a termination: you need the sublease template — and when the sublet later ends, the sublease termination with notice-period matrix guides you step by step.

Rented propertyNoticeDateLaw
Flat3 monthslocal usual dateArt. 266c CO
Commercial premises6 monthslocal usual dateArt. 266d CO
Furnished room / parking space2 weeksend of a one-month periodArt. 266e CO
Movable property3 daysat any timeArt. 266f CO
Fixed-term leaseno termination neededends on the agreed dateArt. 266 CO
Extraordinary (good cause)statutory noticeat any timeArt. 266g CO
Context
The most common error: a fixed-term lease doesn't need to be terminated, it ends by itself on the agreed date (Art. 266 CO). Whoever "terminates" it anyway only creates confusion. So first check whether your lease is fixed-term or open-ended.

⚡ Extraordinary termination and extension

Sometimes you can't wait for the next date. The law knows several extraordinary exits, and conversely it protects you with an extension when a termination hits you hard. Here are the key levers.

Present a replacement tenant
Art. 264 CO
If you present a solvent, acceptable replacement willing to take over on the same terms, the landlord must release you from the lease, even before the date.
Good cause
Art. 266g CO
If continuation becomes unreasonable (e.g. serious, unrepaired defects), you can terminate extraordinarily with the statutory notice. A compensation question may arise.
Serious defect
Art. 259b CO
If the landlord doesn't fix a serious defect despite a deadline, you can terminate without notice. Condition: the written defect notice with a deadline.
Request an extension (hardship)
Art. 272 / 272b CO
If a landlord's termination hits you hard, you can request an extension: up to 4 years for flats, 6 years for commercial premises. Request within 30 days.
Warning
Important: an extension must be requested within 30 days of receiving the termination from the conciliation authority (Art. 273 CO). This deadline is a forfeiture deadline; missing it loses the right. The conciliation authority for tenancy matters is free (Art. 113 CPC).

⚠️ The 5 costliest mistakes when terminating a lease

Each of these five mistakes has already cost someone months of rent, and the most common is the wrong date. Read them once and you'll make none.

⚠️

Missing the local usual date. Whoever terminates too late pays until the next date. Calculate with the calculator above and send the termination in time, by registered post.

⚠️

Only one spouse signed. For the family home, both must sign (Art. 266m CO). If a signature is missing, the termination is void, and you keep paying.

⚠️

Not sent by registered post. Without registered post you can't prove timely receipt. What counts is receipt by the landlord, not the postmark.

⚠️

"Terminating" a fixed-term lease. A fixed-term lease ends by itself (Art. 266 CO). A termination is superfluous and only creates confusion. First check the lease type.

⚠️

Letting the extension deadline lapse. If a landlord's termination hits you hard, you have only 30 days to request an extension (Art. 273 CO). After that, the right is gone.

When terminating you rarely lose because you're in the wrong. You lose because you missed the date by a day.

✅ Terminate cleanly in 5 steps

Five steps, none longer than your coffee break, and at the end your lease is terminated securely, without a month's rent slipping away.

1
Check lease type and date
Look at the contract: fixed-term or open-ended? Which date and notice? When in doubt, the statutory 3-month notice applies.
2
Calculate the earliest date
Use the notice calculator: enter lease type, date model and receipt date, and you get the first valid date.
3
Create the termination letter
Fill in the generator. For a family home, have both spouses sign.
4
Send by registered post
Send the termination by registered post and keep a copy. Timely receipt is thus proven.
5
Plan handover and key return
Ask for a written confirmation of receipt and a handover date. For the protocol, the defect-list template helps.
Warning
In a dispute, the conciliation authority for tenancy matters is free (Art. 113 CPC). Advice from the Tenants' Association. A first contact is worth it before you pay a month's rent too much.
💎 Gold nugget

The lever almost nobody uses: Art. 264 CO. If you present an acceptable, solvent replacement tenant who takes over on the same terms, you're out of the lease immediately, without waiting for the date. The landlord must accept the replacement or release you anyway. Those who look early for a good replacement save themselves months of double rent, and that's exactly what almost everyone forgets.

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❓ Frequent questions about lease termination

The questions that come up before every flat termination, answered briefly and honestly.

🔍

People also ask

Related questions from our magazine

Sources & methodology
As of: 24 June 2026
01
Code of Obligations (CO) – Art. 266–266o end of the leaseNotice periods and dates of ordinary and extraordinary termination, form and family home.
02
Code of Obligations (CO) – Art. 272 ff. extensionExtension of the lease in cases of hardship, duration and procedure.
03
Swiss Tenants' Association – terminationGuides and model letters on termination, deadlines, replacement tenant and extension.
04
Homeowners' Association (HEV)Fact sheets and templates on ending the lease from the landlord's perspective.

All information without guarantee. Found an error? → support@conviva-plus.ch

💡Did you know?

A wrong termination date doesn't void the termination: it automatically applies to the next possible date (Art. 266a para. 2 CO). Those who know this don't panic but simply calculate the earliest valid date with the notice calculator.

Source: OR Art. 266a · Mieterverband
What do you think of this article?

Discussion

6 voices from the community

J
Jonas R.from Zurich

I almost terminated a month too late, I thought end of month always worked. The calculator showed me: receipt this week, otherwise it slides to the next date. Saved 1,900 francs.

C
Carla M.from Bern

The key sentence for me: a wrong termination isn't void, it applies to the next date. It took the panic away when I'd miscalculated the date.

CP
ConvivaPlus Editorial

Thanks, Carla. Exactly, Art. 266a para. 2 CO is your friend here: better in time and on the wrong date than not at all. But aim for the earliest date with the calculator to avoid double rent.

S
Sven B.from Lucerne

We're married, I'd first only signed myself. Good thing the generator notes that both spouses must sign. Otherwise the termination would have been void.

A
Aline D.from Geneva

Thanks to the tip about the replacement tenant (Art. 264) I got out two months earlier. Presented a solvent replacement, the management had to release me. This site saves real money.

R
Robert M.from Thun

Simple, clear, and with the registered-post tip. I sent the termination by registered post and asked for confirmation. Everything worked perfectly, thanks.

ConvivaPlus Editorial

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