Tenant Screening

Can landlords require co-signers for rental approval?

South Carolina rental guidance and tenant-landlord operational information.
Published May 2, 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 32 days ago · South Carolina

Tenant Screening in South Carolina: Requiring Co-Signers for Rental Approval

When managing rental properties in South Carolina, landlords must carefully navigate tenant screening procedures to ensure compliance with state laws while protecting their interests. One common question landlords often ask is whether they can require co-signers (also known as guarantors) as part of their rental approval process.

This guide provides a detailed overview of South Carolina’s stance on requiring co-signers, best practices for landlord screening, and how to implement co-signer requirements effectively and legally.

Can South Carolina Landlords Require Co-Signers?

Yes, landlords in South Carolina can require co-signers or guarantors as a condition of rental approval. This is a common practice used to minimize financial risk, especially when applicants have:

  • Insufficient income to meet rental criteria
  • Poor or limited credit history
  • Insufficient rental history or references

Key Points About Co-Signer Requirements

  • Legal Right: South Carolina law does not prohibit landlords from asking for a co-signer. It is considered a reasonable part of screening applicants.
  • Application Process: Landlords should clearly communicate the requirement for a co-signer as part of the rental application, including explaining what qualifications the co-signer must meet.
  • Co-Signer Responsibilities: The co-signer guarantees the lease obligations, including payment of rent and any damages, in case the primary tenant fails to fulfill these responsibilities.
  • Written Agreement: It is best practice to have the co-signer sign a guaranty agreement alongside or as part of the lease to ensure that the co-signer's obligations are clear and enforceable.

Best Practices for Requiring a Co-Signer in South Carolina

To maintain transparency and compliance during tenant screening, landlords should follow these best practices when requiring a co-signer:

1. Establish Clear Criteria for Co-Signers

Outline specific eligibility standards that co-signers must meet, such as:
  • Minimum credit score (often 650 or higher)
  • Proof of stable income or employment (usually 3x the rent amount)
  • No recent bankruptcies or significant debt
  • Local residency or U.S. citizenship status (depending on landlord preference)
Clearly define these criteria in your rental application materials to manage tenant expectations.

2. Include Co-Signers in Your Screening Process

Screen co-signers just as thoroughly as the primary tenant. This screening should include:
  • Credit report checks
  • Employment verification
  • Background checks, including rental history review
  • References from former landlords or employers
This mitigates risk and avoids signing on guarantors who may lack the financial capacity to meet the lease obligations.

3. Use a Written Guaranty Agreement

Always utilize a formal, written co-signer or guaranty agreement, which should cover:
  • The co-signer’s liability for unpaid rent and damages
  • Duration of the guaranty (typically the full lease term)
  • Conditions triggering the co-signer’s obligations
  • Signature of both landlord and co-signer to solidify the agreement
This legal document ensures enforceability and reduces disputes.

4. Communicate the Requirement Promptly

Inform applicants as early in the process as possible that a co-signer is required, to prevent wasting time and resources on unqualified tenants.

Provide clear instructions on:

  • How to submit co-signer information
  • What documents are needed
  • The timeline for approval
Prompt communication demonstrates professionalism and helps avoid misunderstandings.

Additional Considerations for South Carolina Landlords

Fair Housing Compliance

While South Carolina landlords have discretion to require co-signers, the practice must comply with federal and state fair housing laws:
  • Co-signer requirements should apply uniformly and not discriminate against protected classes such as race, religion, sex, disability, familial status, or national origin.
  • Any co-signer criteria that disproportionately exclude certain groups could expose a landlord to legal liability.

Collecting Security Deposits

Even if a co-signer is required, landlords may still request a security deposit within South Carolina’s legal limits (no more than two months’ rent in the first year of tenancy). The co-signer provides an additional layer of protection beyond the security deposit.

Alternative Screening Tools

Instead of or in addition to requiring co-signers, landlords may consider other tenant screening tools such as:
  • Rental insurance requirements that cover rent defaults
  • Higher security deposits
  • Shorter lease terms to assess tenant reliability
These options allow flexibility while managing risk.

Summary

In South Carolina, landlords are legally permitted to require co-signers as part of tenant screening and rental approval. This practice can be an effective tool to mitigate financial risk when tenants do not meet standard rental qualifications. To implement co-signer requirements effectively:

  • Establish clear, objective criteria for co-signers
  • Screen co-signers thoroughly
  • Use a written guaranty agreement
  • Communicate co-signer requirements transparently to applicants
By adhering to these best practices, South Carolina landlords can protect their rental income and maintain compliance with state and federal laws throughout the tenant screening process.

Ask a Rental Question