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Cosigner Apartment – Who Can Be a Personal Guarantor and How Does It Work?

For robots
June 5, 2026

A cosigner apartment is a common requirement in the Swedish rental market, with many landlords demanding a personal guarantor before signing a lease. But what does it mean to be a cosigner, and what are the requirements for guaranteeing a tenant's rental agreement?

A cosigner (or guarantor) is a person who provides security for the tenant. If the tenant fails to pay rent or damages the apartment, the landlord can demand compensation from the cosigner. Personal guarantees for apartment applications are standard practice in Sweden, especially in major cities.

What is a Cosigner and Why is it Needed?

A cosigner is a legal obligation where a third party guarantees that the tenant fulfills their responsibilities. Landlords use cosigners to reduce the risk of lost rent or property damage. Cosigner guarantees thus protect property owners from financial losses and represent an important security mechanism.

Who Can Be a Cosigner?

Requirements for being a cosigner vary somewhat between landlords, but there are some basic conditions that must be met:

Age and Financial Status

The cosigner must be at least 18 years old and in good financial standing. The landlord may request proof of income or other evidence of stable finances. A general guideline is that income should be 3-4 times the monthly rent.

Personal Requirements

  • No previous debts with debt collection agencies
  • Not already a cosigner for someone else (though this is sometimes allowed)
  • Preferably a family member or close associate
  • Good reputation and stable personal relationship with the tenant

Regional Differences

Requirements for a cosigner apartment can vary between regions. In Stockholm, Gothenburg, and other major cities, requirements are often stricter than in smaller towns. This depends on housing demand and risk levels from the landlord's perspective.

The Cosigner's Legal Responsibility

The cosigner is legally liable for the tenant throughout the rental period. This means the landlord can demand payment from the cosigner if the tenant cannot or will not pay rent.

The Responsibility Includes

  • Outstanding rent throughout the rental period
  • Damage to the apartment's furnishings and appliances
  • Potential legal costs in case of disputes

The responsibility may in some cases continue even after the tenant has moved, depending on the agreement.

Release from Guarantee

A cosigner can request release from the guarantee. This can happen after a certain period (usually 2 years) or when the tenant moves. It is important to request release in writing to avoid continued responsibility.

How to Find a Cosigner

Family and Close Relations

Most people choose a family member – parent, grandparent, or sibling – as a cosigner for an apartment. This is often the simplest option since family members are more willing to take on the responsibility.

Friends and Acquaintances

Some choose a well-established friend with good financial standing. However, it is important that the cosigner understands their legal responsibility before accepting.

When it's Difficult to Find a Cosigner

If you lack family or friends who can serve as a cosigner, securing a rental contract can be more challenging. Some landlords accept alternative security solutions such as higher deposits or advance payments.

Frequently Asked Questions About Cosigners

Can I be a Cosigner with Low Income?

It depends on the landlord and the apartment's rent. Many require proof of income showing sufficient financial stability. Approximately 3-4 times the monthly rent is a common minimum income requirement.

What Happens if the Tenant Doesn't Pay?

The landlord can make a claim against the cosigner. You would then be legally responsible for paying on behalf of the tenant and may need to pay both rent and late fees.

Can a Cosigner's Responsibility Be Limited?

Yes, limitations can often be negotiated. Some cosigners limit their responsibility to a specific amount or time period to reduce their risk.

How Does a Cosigner Get Released?

You can request release by submitting a written request to the landlord. After typically 2 years or when the tenant moves, many landlords are willing to release the cosigner from the guarantee.

Are There Digital Alternatives to Cosigners?

In Sweden, the cosigner must be a physical person. Digital guarantee services and automated guarantee systems are not recognized in Swedish rental contracts.