Thinking of adding a roommate, partner, or family member to your rental lease in Alberta? Understanding the correct process is essential to protect your rights and avoid issues with your landlord. This guide explains the legal steps to add someone to a lease in Alberta, which forms you may need, and the rules under Alberta's tenancy laws.

When Should You Add a Person to Your Lease?

There are many reasons you might need to add someone to your lease—perhaps a partner is moving in, you're taking on a new roommate, or your family is growing. Legally, anyone living in your rental unit long-term should be acknowledged on the lease to define their rights, obligations, and ensure transparency between you and your landlord. Failing to update your lease can lead to misunderstandings or even lease violations.

Understanding Alberta Tenancy Law: Subtenants vs. Additional Tenants

It's important to know whether you are adding someone as a full tenant or a subtenant. In Alberta, a tenant is named on the lease and has the right to live in the unit and a legal obligation to pay rent. A subtenant is someone you let move in (with landlord approval), but who holds a contract with you, not the landlord.

Under the Residential Tenancies Act (Alberta), both the landlord and existing tenant must agree in writing to add a new person as a tenant. The landlord cannot unreasonably withhold consent but may have valid reasons to deny or request more information.

Steps to Add Someone to Your Lease in Alberta

• Review your current lease agreement. Check for clauses about adding tenants or roommates. Most leases require landlord approval to add another tenant.
• Speak to your landlord. Let them know who you'd like to add and why. Be prepared to introduce your potential co-tenant.
• The landlord may request an application. The new person may need to fill out a rental application or consent to a background/credit check, just like other tenants.
• Sign an Addendum or New Lease. If the landlord approves, both parties will usually sign a lease amendment (addendum) or a new lease that includes the new tenant's name. This document confirms the rights and responsibilities of all parties.

Which Form Should You Use?

Alberta does not have a specific government-issued form solely for adding a tenant to an existing lease. Instead, landlords and tenants commonly use a Lease Amendment/Addendum that lists the new tenant, their responsibilities, and is signed by all parties.

• Lease Amendment or Addendum: Used when a new tenant is added; should outline effective date and any changed terms.
• You can draft this document together or use a template (check the Government of Alberta's guidance for amendments).

Example: Lisa wants her friend Sarah to move in. Lisa notifies her landlord, who vets Sarah. If approved, both Lisa and Sarah sign a lease amendment with their landlord, making Sarah a co-tenant with the same rights and obligations as Lisa.

Notice to the Landlord and Tenant Rights

Communicating openly and keeping everything in writing helps prevent future disputes. Once a person is added as a tenant, they are legally responsible for upholding the lease terms, including paying rent and property care. For more details about your obligations as a tenant, see Obligations of Landlords and Tenants: Rights and Responsibilities Explained.

Special Considerations When Adding a Tenant

• Deposits: When adding a tenant, the landlord may ask for an increased security deposit (damage deposit), but the total deposit (including the increase) cannot exceed one month's rent by law. Learn more about deposits in Understanding Rental Deposits: What Tenants Need to Know.
• Rent: Adding a tenant does not permit the landlord to raise the rent immediately. Rent increases must follow Alberta law and notice periods.
• Utilities and Responsibilities: You may want to update who is responsible for utilities or household duties in the new lease or addendum.

Before finalizing, make sure everyone understands the revised terms, and keep signed copies for all parties.

After Adding a Person to Your Lease

Once the new tenant is added and all documents are signed, the newcomer enjoys the same rights and obligations as existing tenants. For helpful tips about living in your rental and next steps, visit What Tenants Need to Know After Signing the Rental Agreement.

If issues arise after adding a tenant—such as disputes, need for repairs, or changes in household status—it's important to communicate in writing and reference your updated lease for clarity.

Want more options for where to live with your new co-tenant? Explore Houseme for nationwide rental listings.

For a broader overview of your rights in this province, refer to Tenant Rights and Landlord Rights in Alberta.

Frequently Asked Questions about Adding a Person to Your Lease in Alberta

1. Can my landlord refuse to add someone to my lease?
   Yes, but only with reasonable grounds—such as concerns about the property’s capacity or the new person's background. The landlord must act reasonably and provide a valid explanation.
2. Is a verbal agreement enough to add someone as a tenant?
   No. All changes to the lease should be documented in writing and signed by all parties to avoid disputes and ensure legal enforceability.
3. Does adding a new tenant affect my damage deposit?
   The landlord may request an increased deposit, but the total deposit for the unit cannot legally exceed one month’s rent.
4. What if the landlord ignores my request to add a tenant?
   Keep written records of your communication. If the landlord is being unreasonable, you may contact the RTDRS for assistance.
5. Can I remove a person from the lease later on?
   Yes, but it requires another written agreement or lease amendment between all tenants and the landlord. The process mirrors the one used to add someone.

Key Takeaways

• Always get landlord approval and written agreement when adding another person to your lease in Alberta.
• A lease amendment (addendum) should be signed by all parties to confirm the change.
• If issues arise, Alberta tenants can request dispute resolution from the RTDRS.

Need Help? Resources for Tenants

• Residential Tenancies Act (Alberta) – Read the tenancy law.
• Residential Tenancy Dispute Resolution Service (RTDRS) – File a complaint or resolve tenancy disputes.
• Calgary Legal Guidance Tenant Legal Clinic – Free tenant support and advice.
• Alberta Consumer Contact Centre: 1-877-427-4088

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1. Residential Tenancies Act (Alberta) – Alberta.ca
2. Residential Tenancy Dispute Resolution Service (RTDRS)
3. Amending a residential tenancy agreement in Alberta

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