A cosigner is someone who signs the lease alongside you and promises to pay rent if you don't

A cosigner is a person — usually a parent, relative, or trusted friend — who signs your lease and becomes legally responsible for the rent if you fail to pay it. The landlord can pursue the cosigner for unpaid rent, late fees, or damage charges just as they would pursue you. Cosigners exist because landlords want a backup source of money; they use them when a tenant's income, credit history, or rental record looks risky.

The cosigner does not live in the apartment and does not have the right to enter it or make decisions about the lease. They are purely a financial safety net. Once you sign, both you and the cosigner are equally liable — the landlord can collect from either of you, or from both.

Key Takeaways

  • A cosigner is legally responsible for rent and damages if you do not pay, and the landlord can sue them directly.
  • Landlords typically ask for a cosigner when your income is below a certain threshold, your credit score is low, or you have no rental history.
  • The cosigner's income and credit are usually verified by the landlord before approval, so they need to be willing to share financial information.
  • A cosigner remains on the lease for the full term unless the lease is formally released or rewritten, even if you move out early.
  • Some landlords allow you to remove a cosigner later if you meet income or credit requirements, but this requires a new lease or written agreement.

Why landlords ask for a cosigner

Landlords use cosigners to reduce the risk that rent will go unpaid. They typically ask for one when your gross monthly income is less than 30 times the monthly rent — so if rent is $1,500, you would normally need to earn at least $45,000 per year. If your income is below that threshold, a cosigner with sufficient income can make up the difference.

A low credit score or a history of late payments, evictions, or broken leases also triggers a cosigner request. Landlords pull your credit report and rental history as part of screening, and they use those records to decide whether they need a backup. Some landlords have a minimum credit score requirement — often 620 or higher — and will ask for a cosigner if you fall short.

First-time renters with no rental history sometimes need a cosigner even if their income and credit are solid, because the landlord has no way to verify that you will pay on time. A cosigner with an established rental or credit history reassures the landlord that someone accountable is behind the lease.

What information a cosigner must provide

The landlord will verify the cosigner's income and credit just as they verify yours. Expect to ask your cosigner for recent pay stubs, a W-2 or tax return, and permission to run a credit check. Some landlords also request bank statements to confirm the cosigner has liquid savings.

The cosigner's income must typically meet the same threshold as yours — their gross monthly income should be at least 30 times the monthly rent, or sometimes higher. If the cosigner's income is too low or their credit is poor, the landlord may reject them and ask for a different cosigner instead.

Before you ask someone to cosign, be honest about what the landlord will see. Your cosigner needs to understand that the landlord will pull their credit report, which will show up as a hard inquiry and may temporarily lower their credit score by a few points. They should also know that the lease obligation will appear on their credit report and could affect their ability to borrow money for a car, home, or other purpose while the lease is active.

The legal responsibility a cosigner takes on

When a cosigner signs the lease, they become jointly and severally liable — a legal term meaning the landlord can collect the full debt from either you or the cosigner, or from both. If you stop paying rent, the landlord does not have to pursue you first; they can go straight to the cosigner. The cosigner cannot say "go after the tenant first" — they have no legal defense based on that argument.

This liability covers not just unpaid rent but also late fees, damage charges, and any other costs the lease allows the landlord to charge. If you cause $2,000 in damage and skip out, the landlord can sue the cosigner for the full amount. The cosigner's credit report will show the debt if it goes unpaid or to collections.

The cosigner remains liable for the entire lease term, even if you move out early, unless the lease is formally released or rewritten. If you break the lease and the landlord sues for the remaining rent, the cosigner can be held responsible for those months too.

How to remove a cosigner later

Some landlords allow you to remove a cosigner once you have demonstrated a solid payment history and your income or credit has improved. This is not automatic — you have to ask, and the landlord can say no. There is no legal right to remove a cosigner; it depends entirely on the landlord's policy.

If the landlord agrees, they will usually require you to sign a new lease or an amendment to the existing lease that removes the cosigner's name. This is a separate document, and the cosigner must agree to it (or at least be notified, depending on state law). Some landlords require a credit check or income verification to confirm you now meet their standards on your own.

If the landlord refuses to remove the cosigner, your only option is to move out and find a new apartment. The cosigner cannot unilaterally remove themselves from the lease while you are still living there.

Alternatives if you cannot find a cosigner

If no one is willing or able to cosign, you have a few other paths. Some landlords accept a larger security deposit in place of a cosigner — typically one to two months' rent instead of the standard one month. This gives the landlord a financial cushion without requiring a third party to sign.

You can also look for apartments with lower rent, which may bring your income-to-rent ratio into the acceptable range without a cosigner. Moving to a less expensive neighborhood or accepting a smaller unit can sometimes eliminate the cosigner requirement entirely.

A few landlords accept proof of savings or a letter from a bank showing you have money set aside for rent. This is less common, but it is worth asking about if you have substantial savings and no one to cosign.

What happens if the cosigner cannot pay

If you stop paying rent and the cosigner also cannot or will not pay, the landlord can pursue both of you for the debt. They can sue you, sue the cosigner, or sue both together. The debt can go to a collection agency, and both you and the cosigner will have it on your credit reports. A judgment against the cosigner can lead to wage garnishment or bank account levies, depending on state law.

This is why it is important to choose a cosigner who is financially stable and understands the commitment. A cosigner should not agree to sign unless they are genuinely prepared to cover the rent if you cannot. If the cosigner is already stretched thin financially, they are taking on a real risk.

Frequently Asked Questions

Can a cosigner live with me in the apartment?

No. A cosigner is a third party who signs the lease but does not live there. If someone lives with you, they would be a co-tenant and would need to sign the lease as a resident, not as a cosigner. A cosigner has no right to enter the apartment or use it.

Does the cosigner's income count toward mine on the process?

Usually yes. The landlord will add the cosigner's income to yours to determine whether the combined income meets the 30-times-rent threshold. This is why the cosigner's income verification is so important — it directly affects whether you are approved.

What if my cosigner moves or loses their job?

The cosigner remains liable regardless of their employment or location. If they lose their job and you stop paying rent, the landlord can still pursue them for the debt. The cosigner should notify you when ready if their financial situation changes, but they cannot straightforward walk away from the lease obligation.

Can I cosign for someone else while I am a cosigner on my own lease?

Technically yes, but it is risky. If you cosign for someone else and they do not pay, you become liable for their rent while still being liable for your own. Landlords may also view multiple cosigning obligations as a red flag when you explore for future housing. Check with the landlord on your own lease before taking on this responsibility.

Does being a cosigner hurt my credit?

The cosigner's credit will show a hard inquiry when the landlord pulls it, which may lower their score by a few points temporarily. The lease obligation will also appear on their credit report as an account they are responsible for, which could affect their debt-to-income ratio if they explore for a loan. However, if rent is paid on time, the impact is usually minimal.