Tenant Screening

Can landlords require co-signers for rental approval?

Missouri rental guidance and tenant-landlord operational information.
Published March 28, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 67 days ago · Missouri

Tenant Screening in Missouri: Can Landlords Require Co-Signers for Rental Approval?

When managing rental properties in Missouri, one common concern for landlords is ensuring that tenants are financially reliable and capable of meeting their rental obligations. To mitigate risks, landlords often consider requiring co-signers or guarantors as part of the tenant screening process. This guide provides a detailed overview of Missouri-specific considerations regarding the use of co-signers in rental approvals.

Understanding Co-Signers in Missouri Rental Agreements

A co-signer, or guarantor, is typically a third party who agrees to be legally responsible for the lease and rental payments if the primary tenant defaults. This arrangement offers landlords additional security, especially when applicants have marginal credit, limited rental history, or insufficient income.

Can Missouri Landlords Require Co-Signers?

In Missouri, landlords are legally permitted to require co-signers or guarantors as a condition of rental approval. There are no specific state statutes that prohibit or restrict landlords from making this requirement. Requiring a co-signer can be a prudent business decision, particularly in the following cases:

  • The applicant’s income does not meet the landlord’s minimum requirements.
  • The tenant has a poor or limited credit history.
  • The tenant lacks sufficient rental history or references.
  • The applicant is a student or young professional without a steady income.
Landlords should clearly communicate any such requirements during the application process and apply their policies consistently to avoid accusations of discrimination or unfair treatment.

Legal Considerations When Requiring Co-Signers

While Missouri law does not forbid co-signer requirements, landlords must observe general legal obligations to ensure fair treatment and compliance with other applicable laws:

1. Non-Discrimination

Missouri landlords must adhere to the Missouri Human Rights Act and federal fair housing laws, which prohibit discrimination in housing based on:

  • Race
  • Color
  • National origin
  • Religion
  • Sex
  • Disability
  • Familial status
  • Age (where applicable)
  • Sexual orientation and gender identity (under some local ordinances)

When requiring co-signers, landlords should apply this policy uniformly to all applicants with similar risk profiles to avoid claims of discriminatory practices.

2. Clear Lease Language

If a co-signer is involved, the lease agreement should:

  • Explicitly name the co-signer as a guarantor or co-tenant.
  • Detail the obligations of the co-signer regarding payment and other lease terms.
  • State that the co-signer is jointly and severally liable for rent and damages, ensuring enforceability.
Having a clear, written agreement helps protect the landlord’s interests and avoids ambiguity in enforcement.

3. Application and Screening Compliance

When evaluating co-signers, landlords may:

  • Run credit and background checks on the proposed guarantor.
  • Require proof of income or employment.
  • Request references.
Landlords should gain written consent from co-signers to conduct these screenings, as required by the Fair Credit Reporting Act (FCRA).

Practical Tips for Missouri Landlords Requiring Co-Signers

If you decide to require a co-signer as part of your tenant screening process, consider adopting the following best practices:

  • Establish Clear Policies: Define the criteria for when a co-signer is required. For example, if the tenant's income is less than three times the rent, you may require a guarantor.
  • Create a Separate Co-Signer Agreement: While the lease may reference the co-signer’s obligations, having a separate guaranty agreement can clarify the responsibilities and enhance legal enforceability.
  • Verify the Co-Signer’s Financial Ability: Ensure that the co-signer has sufficient income and creditworthiness to cover the rent if necessary.
  • Communicate Transparently: Inform applicants early in the screening process if a co-signer is required to avoid delays or misunderstandings.
  • Maintain Consistency: Apply your co-signer policies uniformly to all applicants to avoid potential legal challenges.

Summary

In Missouri, landlords have the right to require co-signers as part of tenant screening and rental approval processes. This practice can be particularly valuable when tenants lack adequate income, credit, or rental history. While Missouri law does not restrict co-signer requirements, landlords should ensure compliance with anti-discrimination laws and use clear, written agreements to define the co-signer’s obligations.

By implementing thoughtful screening policies and treating all applicants fairly, Missouri landlords can reduce risks and foster positive landlord-tenant relationships.

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