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Which letters must be sent by registered mail? Eight countries compared

It depends on the country more than on the letter. France requires a registered letter with acknowledgement of receipt (LRAR) for lease notices and dismissals, Belgium registered mail for a resignation, a dismissal and an insurance cancellation, and the Netherlands a registered letter or bailiff to end a lease. Germany, Spain and Switzerland prescribe it for none of the common letters below. In the UK only business lease notices name it, and in the US a few state laws do; there it is mainly proof of sending and delivery.

Upload your letterLetter by letter, country by country

What the status means

Required by law
The law prescribes registered mail, sometimes as one of a short list of accepted methods. Another channel can make the letter invalid.
Recommended
No form is prescribed, but a deadline or the need to prove receipt makes registered mail the usual safe choice.
Often required by contract
The law sets no form. Contract terms often ask for registered mail, so check yours.
Not needed
Email, an online form or a cancellation button is valid and common. Registered mail adds little.

Letter by letter, country by country

LetterGermanyFranceBelgiumSpainSwitzerlandNetherlandsUnited KingdomUnited States
Tenant's notice to end a leaseRecommendedHand-signed originalRequired by lawLRARLocal differencesRecommendedWallonia: required by lawRecommendedRecommendedHand-signed originalLocal differencesRequired by lawNot neededLocal differencesRecommendedLocal differences
Landlord's notice to end a leaseRecommendedHand-signed originalRequired by lawLRARRecommendedWallonia: required by lawRecommendedRecommendedHand-signed originalLocal differencesRequired by lawRecommendedLocal differencesRecommendedLocal differences
Reply to a rent increaseNot neededRecommendedLocal differencesRecommendedLocal differencesRecommendedRecommendedHand-signed originalLocal differencesRecommendedNot neededLocal differencesNot in our list
Reclaiming the rental depositRecommendedRecommendedRecommendedLocal differencesRecommendedLocal differencesRecommendedRecommendedNot neededLocal differencesRecommendedLocal differences
Notice of defects or repairsRecommendedRecommendedRecommendedLocal differencesRecommendedRecommendedLocal differencesRecommendedNot neededLocal differencesRecommendedLocal differences
Notice to end or renew a business leaseNot in our listRequired by lawLRARRequired by lawLocal differencesNot in our listNot in our listRequired by lawRequired by lawLocal differencesNot in our list
Resignation by the employeeRecommendedHand-signed originalRecommendedRequired by lawRecommendedRecommendedRecommendedOften required by contractLocal differencesNot neededLocal differences
Dismissal by the employerRecommendedHand-signed originalRequired by lawLRARRequired by lawRecommendedRecommendedRecommendedRecommendedLocal differencesNot in our list
Cancelling an insurance policyNot neededNot neededRequired by lawRecommendedNot neededNot neededNot neededOften required by contractLocal differences
Switching health insurerNot neededNot in our listNot in our listNot in our listRecommendedNot neededNot in our listNot in our list
Cancelling a phone or internet contractNot neededNot neededNot neededNot neededOften required by contractNot neededNot neededNot in our list
Cancelling a gym or other subscriptionNot neededOften required by contractOften required by contractNot neededOften required by contractNot neededOften required by contractLocal differencesRecommendedLocal differences
Cancelling electricity or gasNot neededNot neededNot neededNot neededNot in our listNot neededNot in our listNot in our list
Payment reminder or formal demandRecommendedRecommendedRecommendedRecommendedRecommendedRecommendedRecommendedLocal differencesRecommendedLocal differences
Disputing a debtRecommendedRecommendedNot in our listRecommendedNot in our listRecommendedNot neededLocal differencesRecommendedLocal differences
Objection to a tax assessmentNot neededNot neededNot neededLocal differencesNot neededLocal differencesRecommendedHand-signed originalLocal differencesNot neededRecommendedLocal differencesRecommendedLocal differences
Appeal against a fineRecommendedRequired by lawLRARRecommendedLocal differencesNot neededLocal differencesRecommendedHand-signed originalLocal differencesNot neededNot neededLocal differencesNot in our list
Withdrawal from a purchaseNot neededNot neededNot neededNot neededRecommendedNot neededNot neededRecommendedLocal differences
Warranty claim for a faulty productRecommendedRecommendedRecommendedNot neededRecommendedRecommendedNot neededLocal differencesNot in our list

Tenant's notice to end a lease

Landlord's notice to end a lease

Reply to a rent increase

Reclaiming the rental deposit

Notice of defects or repairs

Notice to end or renew a business lease

Resignation by the employee

Dismissal by the employer

Cancelling an insurance policy

Switching health insurer

  • GermanyNot needed
  • FranceNot in our list
  • BelgiumNot in our list
  • SpainNot in our list
  • SwitzerlandRecommended
  • NetherlandsNot needed
  • United KingdomNot in our list
  • United StatesNot in our list

Cancelling a phone or internet contract

Cancelling a gym or other subscription

Cancelling electricity or gas

Payment reminder or formal demand

Disputing a debt

Objection to a tax assessment

Appeal against a fine

Withdrawal from a purchase

Warranty claim for a faulty product

Country by country

FAQ

In which country is registered mail most often required by law?

In France, Belgium and the Netherlands. France names the LRAR for a tenant's or landlord's notice on a home, a commercial tenant's notice, a dismissal and a traffic fine appeal by post. Belgium names registered mail for a resignation, a dismissal, an insurance cancellation and two lease requests, usually next to a bailiff. The Netherlands names a registered letter or a bailiff for ending a residential or retail lease.

Do I need registered mail to cancel insurance?

Only in Belgium, where it is one of several accepted methods, including digital ones since 2024. In France, Germany and the Netherlands email is enough for most policies, Switzerland accepts text form for private insurance, and in the UK and the US you follow the insurer's own process, often by phone or online. In Spain a method that proves receipt is advised because notice must arrive a month before renewal.

Is a resignation by email valid?

Not in Belgium, where only registered mail, hand delivery against a signed copy or a bailiff count, and not in Germany, where it needs a hand-signed original. In France, Spain, Switzerland, the Netherlands, the UK and the US the law sets no form, but proof of when you resigned avoids disputes about the notice period.

Why use recorded delivery or certified mail in the UK or US if the law rarely asks for it?

For proof. Many deadlines run from when a letter is posted or received: a tax appeal, a debt dispute, a deposit demand or a landlord's notice. A tracked letter signed for on delivery gives a dated record of sending and delivery that an email or an ordinary letter does not.

What is the difference between a hand-signed original and registered mail?

They solve different problems. A hand-signed original is a form rule: in Germany and Switzerland some notices are only valid on paper signed by hand. Registered mail is a way to prove delivery. A letter can travel by registered mail and still miss the form.

Does registered mail prove what the letter said?

Usually not. It proves posting and delivery. In Spain a burofax with certified content also proves the text; elsewhere, keep a copy and every receipt.

Sources and review

Each letter links to the official source it is based on: legislation, a government portal or a public authority. Practice and court rulings can change; check the source before you rely on a deadline. Sources checked on 28 October 2026.

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Registered mail rules in eight countries | SendRegistered