What Is Considered "Unlawful Discrimination" in a Rental Application Process?

Updated 7 days ago (March 6, 2026)

Unlawful discrimination occurs when a landlord offers prejudicial treatment to a tenant or a prospective tenant on the basis of group characteristics that are not closely related to the landlord's business or commercial needs.

The most common cases are race, religion, gender, sex, sexual orientation, marital status, nationality, ancestry, source of income, disability, immigration or citizenship status, and having people under the age of 18 living in the household. With the exception of the source of income, a landlord may not ask a tenant questions, either verbally or in writing, about any of the above matters.

In addition, you should not ask tenants questions about the prospective tenant's age or medical condition.

You may ask the tenant about the number of people who will be living in the rental unit. While you as a landlord can establish reasonable standards for the number of people per square feet in a rental unit, you cannot use overcrowding as a pretext for refusing to rent to tenants with children if you would rent to the same number of adults.

In the context of rental housing, unlawful discrimination can be expressed in any of the following scenarios when motivated by discriminatory reasons:

  • Refusing to rent to a tenant

  • Advertising excluding a particular group

  • Refusing to let a tenant view the property

  • Claiming a housing unit is not available for rental when it actually is

  • Offering or providing inferior housing terms and conditions

  • Canceling the rental agreement

  • Offering or providing segregated housing accommodations

Tellus TIP:

Remember that discrimination isn't just refusing to rent to a tenant, but also providing inferior housing or excluding certain groups in your advertising. Always be careful.

Legal Disclaimer: Tellus provides this content for informational purposes only. This is not legal advice. Laws vary by state and locality, and regulations may have changed since this article was published. Consult a qualified attorney for guidance specific to your situation.

State-by-State Guide

Laws on this topic vary significantly by state. Select a state below to read about its specific laws and statutes.

StateState-Specific Guide
California California Security Deposit Laws for Landlords, California Rent Increase Rules for Landlords, California Landlord Maintenance and Repair Obligations, California Lease Agreements for Landlords, California Eviction Process for Landlords, California Landlord Entry Rules and Tenant Privacy
New York New York Security Deposit Laws for Landlords, New York Rent Increase Rules for Landlords, New York Landlord Maintenance and Repair Obligations, New York Lease Agreements for Landlords, New York Eviction Process for Landlords, New York Landlord Entry Rules and Tenant Privacy
Texas Texas Security Deposit Laws for Landlords, Texas Landlord Maintenance and Repair Obligations, Texas Lease Agreements for Landlords, Texas Eviction Process for Landlords, Texas Landlord Entry Rules and Tenant Privacy
Florida Florida Security Deposit Laws for Landlords, Florida Landlord Maintenance and Repair Obligations, Florida Lease Agreements for Landlords, Florida Eviction Process for Landlords, Florida Landlord Entry Rules and Tenant Privacy
New Jersey New Jersey Security Deposit Laws for Landlords, New Jersey Rent Increase Rules for Landlords, New Jersey Landlord Maintenance and Repair Obligations, New Jersey Eviction Process for Landlords, New Jersey Landlord Entry Rules and Tenant Privacy
Illinois Illinois Security Deposit Laws for Landlords, Illinois Rent Increase Rules for Landlords, Illinois Landlord Maintenance and Repair Obligations, Illinois Eviction Process for Landlords, Illinois Landlord Entry Rules and Tenant Privacy
Massachusetts Massachusetts Security Deposit Laws for Landlords, Massachusetts Landlord Maintenance and Repair Obligations, Massachusetts Lease Agreements for Landlords, Massachusetts Eviction Process for Landlords, Massachusetts Landlord Entry Rules and Tenant Privacy
Pennsylvania Pennsylvania Security Deposit Laws for Landlords, Pennsylvania Landlord Maintenance and Repair Obligations, Pennsylvania Lease Agreements for Landlords, Pennsylvania Eviction Process for Landlords, Pennsylvania Landlord Entry Rules and Tenant Privacy
Washington Washington Security Deposit Laws for Landlords, Washington Rent Increase Rules for Landlords, Washington Landlord Maintenance and Repair Obligations, Washington Eviction Process for Landlords, Washington Landlord Entry Rules and Tenant Privacy
Maryland Maryland Security Deposit Laws for Landlords, Maryland Rent Increase Rules for Landlords, Maryland Landlord Maintenance and Repair Obligations, Maryland Eviction Process for Landlords, Maryland Landlord Entry Rules and Tenant Privacy