What Is a Guarantor on a Lease?

A guarantor on a lease is a person who legally agrees to pay rent and cover any damages for you when you’re unable to fulfill your lease obligations as the tenant. Some landlords and property managers require a guarantor on the lease when a tenant’s income, credit score, or rental history doesn’t meet the application criteria.

Whether you’re a first-time renter, have limited income, or are rebuilding your credit, understanding the role a guarantor plays in your rental application acceptance will help you approach renting with confidence.

What does a guarantor do?

A guarantor serves as a financial backup for tenants, legally agreeing to cover unpaid rent, property damage costs, or fees if the primary renter cannot meet their lease obligations. You can think of a lease guarantor as a financial safety net for the property owner.

What is the difference between a co-signer and a guarantor?

Both guarantors and co-signers help renters get their rental application approved. The main difference is that a co-signer shares rent responsibility from the start of the lease, while a guarantor only becomes liable if the tenant defaults.

The chart below highlights the main distinctions between a guarantor and a co-signer.

When do you need a guarantor?

Landlords typically require a guarantor on a lease when your income, credit score, or rental history doesn’t meet their rental requirements. 

Here are some reasons you might need a guarantor to rent an apartment.

• Income requirements: Many property owners require tenants to earn at least 2.5 to 3 times the monthly rent. If your monthly income falls below the landlord’s threshold, even with steady employment, a guarantor can bridge that gap by demonstrating additional financial backing.
• Credit challenges: Some property owners set a minimum credit score of 600. Renters with a limited credit history, past financial difficulties, or payment reliability may need a guarantor.
• First-time renters: Property owners typically request references from previous landlords or employers. Students, recent graduates, or individuals without an established rental history may require guarantors, as landlords can’t verify their track record as a responsible tenant.
• Competitive markets: In high-demand rental markets like New York City, San Francisco, or other expensive metropolitan areas, landlords may sometimes require guarantors, regardless of tenant qualifications.

How does a guarantor work?

Most landlords require a guarantor to sign the lease agreement or a guarantor addendum, which makes them legally responsible for covering rent and other obligations. Signing is the guarantor’s formal agreement to step in if the tenant defaults.

They become financially responsible for the rental property without actually living there. Their primary role involves stepping in to make payments when you fall behind on rent and covering the fees if you break the lease or fail to cover property damage costs. This financial accountability remains in effect for the entire lease term, including any renewals or extensions, until the lease is properly terminated. Landlords can pursue guarantors for renter related expenses through the same legal channels they would use against tenants, including collections agencies or court proceedings. (This is subject to applicable law and the terms of the guaranty agreement.)

Who can be your guarantor?

Guarantors must be financially stable with a strong credit history. This ensures they can step in if needed. Common types of guarantors include:

Parents and close relatives

Parents are by far the most common choice, especially for younger renters. Individuals with shorter credit histories or lower incomes may be more likely to rely on family guarantors.

Trusted friends

Some renters ask a close friend to help, though landlords may look more closely at the friend’s financial profile before approving. Friends who already rent or own a home themselves are generally stronger candidates.

Workplace connections

Employers or mentors occasionally serve as guarantors, usually when stable housing supports a job relocation or training program.

Third-party guarantor companies

In some large cities, renters turn to guarantor services that, for a fee, act as the financial backstop. These services can be useful if you don’t have personal connections who qualify, though not every landlord accepts them.

What does a guarantor need to provide?

Landlords typically request that guarantors submit a list of documents to demonstrate they have good credit and are financially stable. Requirements vary by landlord, but these items are likely to be required of a potential guarantor:

• Proof of income, often several times the monthly rent
• Proof of employment, such as an employer letter or recent W-2
• Credit check authorization
• Government-issued identification

How to get a guarantor for an apartment

You can get a guarantor by asking family or friends, or exploring professional guarantor services. The right approach depends on your personal situation and the landlord’s requirements.

• Start with family and friends: Parents and relatives are the most common option, especially for younger renters or those still establishing credit.
• Ask trusted employers or mentors: Employers or mentors may occasionally agree, especially if stable housing supports your work or education.
• Explore professional guarantor services: In some cities, third-party services will act as guarantors for a fee, though not all landlords accept them.

What to do if you’re nervous about asking someone to be a guarantor

It can feel intimidating to ask someone to be your guarantor, since you’re essentially requesting they take on financial responsibility for your housing. Make the conversation easier by demonstrating you’re a reliable choice: gather recent pay stubs, positive references from previous landlords or employers, and a copy of the lease agreement you’re planning to sign.

Present a clear picture of your financial stability by showing consistent income, explaining your budget plan, and discussing how you’ll handle potential challenges like job loss or unexpected expenses. This preparation shows respect for the significant commitment you’re asking them to make, and increases their confidence in your ability to meet your obligations.

Alternatives if you can’t get a guarantor

Not everyone has someone willing or able to step in. If you can’t secure a guarantor, ask your potential landlord about these options:

• Paying a larger security deposit
• Paying several months’ rent in advance
• Applying with roommates who have strong credit
• Showing proof of steady income
• Consider a private landlord

Whether you use a guarantor or not, streamline your rental application process with Zillow. You can apply to multiple rentals using the same application information for 30 days. Plus, Zillow helps ensure you get fair and equitable consideration when applying to rentals.